KR20110102619A - Decelerate of dual lead worm as possible fine control of back-lash by scale - Google Patents

Decelerate of dual lead worm as possible fine control of back-lash by scale Download PDF

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Publication number
KR20110102619A
KR20110102619A KR1020100021715A KR20100021715A KR20110102619A KR 20110102619 A KR20110102619 A KR 20110102619A KR 1020100021715 A KR1020100021715 A KR 1020100021715A KR 20100021715 A KR20100021715 A KR 20100021715A KR 20110102619 A KR20110102619 A KR 20110102619A
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KR
South Korea
Prior art keywords
dual
lead
worm
backlash
bolt
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KR1020100021715A
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Korean (ko)
Inventor
오택춘
Original Assignee
오택춘
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Priority to KR1020100021715A priority Critical patent/KR20110102619A/en
Priority to PCT/KR2011/001577 priority patent/WO2011111970A2/en
Publication of KR20110102619A publication Critical patent/KR20110102619A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F16H55/24—Special devices for taking up backlash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere

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

Abstract

The present invention relates to a dual-lead worm reducer capable of fine-adjusting backlash by a scale, and a micro-adjusting housing in which a nut tube housing and a bolt tube housing are coupled to the worm shaft of a worm reducer composed of a dual-lead worm shaft and a worm gear set of a worm wheel. By rotating the micro-adjustment housing according to the scale marked on the bolt tube housing, the backlash of the abnormal clearance gap between the dual-lead worm shaft and the worm wheel caused by abrasion by continuous use of the worm reducer. The dual-lead worm shaft rotates straight to maintain the backlash of the normal gap spacing, it is possible to extend the precise service life of the worm reducer by a fine adjustment by such a scale, and to achieve a stable power transmission.

Description

Dual lead worm reducer with fine adjustment of backlash by scale {DECELERATE OF DUAL LEAD WORM AS POSSIBLE FINE CONTROL OF BACK-LASH BY SCALE}

The present invention relates to a dual-lead worm reducer capable of fine-adjusting backlash by a scale, and in detail, a nut tube housing and a bolt tube housing are coupled to the worm shaft of the worm reducer made of a dual-lead worm shaft and a worm gear set of a worm wheel. Fine adjustment to axially adjust the adjustment housing, but to rotate the micro-adjustment housing according to the scale marked on the bolt tube housing for the backlash of the abnormal clearance gap between the dual lead worm shaft and the worm wheel caused by abrasion by continuous use of the worm reducer. By the dual-lead worm shaft rotates to go straight to the dual-lead worm reducer capable of fine adjustment of the backlash by the scale to maintain the backlash of the normal clearance gap.

In general, if both gears are the same size, there is a gap in order to smooth the rotation operation because it is tight and the rotation operation is not good. Because of this, there is an input and an output in the gear and the backlash ( It is called back-lash and it is formed in all gear combinations.

In recent years, there are many cases in which high-tech fields such as semiconductors require precision and highly efficient precision machines and parts. Among these precision machines and parts, many gear combinations in which gears mesh with each other for precise and precise operation are rotated. The backlash is basically formed in the gear combination, and the backlash is essentially followed by the backlash of the abnormal clearance gap, in which the teeth of the gear are worn out by the continuous use of the gear combination and the gap is further widened. Follow.

Therefore, in order to solve the problem of abnormal backlash in which the clearance gap between the gear combinations engaged with each other is applied, a dual lead having different leads of the gear teeth is applied, and the clearance gap is further increased by wear. By continuously adjusting the backlash of abnormal gap gaps, the gap is reduced to normal gap gap backlash.

However, since the gears of the precision machine and parts as described above are applied only to very precise and sophisticated parts, the dual leads are extremely limited in the combination of a small amount of worm gears of the precision machine and parts, but the high speed rotation by the motor is performed at low speed. It is not yet applied to the gear reducer of the general gear combination for converting to.

Furthermore, the worm reducer, which consists of a worm gear set of interlocking worm shafts and worm wheels, is highly precise and precise because it requires thorough calculations and sophisticated processing and design from the initial machining to the finish, compared to the general reduction gears of the general gear combinations. It is more difficult to apply the dual lead as a sophisticated technology, and therefore, fine adjustment of the backlash when applying the dual lead is not naturally performed in the worm reducer.

In other words, the dual-lead worm gear type, which is mainly used in machine tools, semiconductor testers, and processing equipment, is used in only one part of precision machines in Japan, Germany, Switzerland, etc. No company develops, sells, or commercializes them.

Therefore, the dual-lead technology is currently used only in a small amount of machine tools as a precision machine, but if it is activated to a place such as a worm reducer, the possibility of use in various kinds of advanced and precision machines such as semiconductor equipment and medical equipment is sufficiently examined. As it is becoming more advanced, diversified and simplified, there is a good chance that it will become a key part in the precision machinery parts market.

The present invention has been made to improve the above-mentioned problems, and its object is to achieve a dual tolerance of zero with a accumulated tolerance of different worm screw leads in the worm shaft and the worm wheel, which are worm gear set combinations of the worm reducer. In the nut tube housing and the bolt tube housing of the microtuning housing axially coupled to the dual-lead worm shaft, the backlash of the abnormal clearance gap caused by abrasion by the continuous use of the worm reducer is applied to the scale marked on the bolt tube housing. It provides a dual-lead worm reducer capable of fine-adjusting backlash by the scale, which is more precisely adjusted by the rear lead worm shaft that rotates and moves straight to the correct distance according to the scale by rotating the fine adjustment housing. Is in.

Another object is a wrench bolt inserted through a bolt hole formed at regular intervals on one side of the bolt tube housing to fix the nut tube housing of the fine adjustment housing is made by coupling the nut tube housing and the bolt tube housing to each other; The present invention provides a dual-lead worm reducer capable of fine-adjusting backlash by a scale to be in close contact with one side of the nut tube housing.

Another object is that the backlash fine by the graduation formed four upper and lower sides of each side of the worm reducer case of the coupling portion for adjusting the coupling coupled between the motor and the other side of the worm shaft when the worm shaft is moved It provides an adjustable dual-lead worm reducer.

Another object of the present invention is to provide a dual-lead worm reducer according to the present invention, in which the bolt holes for installing the worktable on the outer surface of the case of the worm wheel part are installed at eight intervals at 45 degree intervals along the circumference of the backlash fine. It provides an adjustable dual-lead worm reducer.

In order to achieve the above object, the dual-lead worm reducer capable of fine-adjusting the backlash according to the scale of the present invention is a distance between the mountain 7 and the center of the mountain facing each other of the worm screw part 1 composed of the mountain and the valley. The dimension of the center pitch 2, the point where the left pitch face 8a1 of the peak meets the reference pitch line PL, and the point where the left pitch face 8a2 of the peak meets the reference pitch line PL ( The dimension of the sound 3, which is the distance between 3a), the point 4a where the right pitch face 8b1 of the peak and the reference pitch line PL meet, and the right pitch face 8b2 of the next peak and the reference A dual-lead worm shaft 10 having different dimensions of the large lead 4, which is a distance between the points 4a where the pitch lines PL meet, so that the thickness of the peak 7 increases in one direction; A dual lead worm wheel 11 having a central pitch such as the dual lead worm shaft 10 and a worm screw portion of a sound lead and a large lead and engaged with the dual lead worm shaft 10; A motor 13 axially coupled with the coupling 16 to one side of the dual lead worm shaft 10 so as to allow the dual lead worm shaft 10 to flow along the motor shaft direction; It consists of a nut tube housing 12a and a bolt tube housing 12b which are screwed together, and the bolt tube housing 12b is axially coupled to the other side of the dual lead worm shaft 10 through a tapered needle bearing 14. A fine adjustment housing 12 in which a reference line is displayed on the outer circumferential surface of the nut pipe housing 12a and the graduations facing the reference line are spaced at regular intervals along the outer circumferential surface of the bolt pipe housing 12b; And a case (9) accommodating the dual lead worm shaft (10) and the worm wheel (11). The dual lead worm shaft (10) is made by manual operation of rotating the bolt tube housing (12b) to a scale. Abnormal backlash of the dual-lead worm shaft 10 and the worm wheel 11, which are worn by being rotated by a constant distance along the motor axis direction while being rotated on the motor shaft of the motor 13 and are further worn out. It is characterized by the fact that it can be finely adjusted continuously and finely.

In addition, the worm screw portion 1 of the worm gear set in which the dual lead worm shaft 10 and the worm wheel 11 are engaged with each other has a center pitch 2, a sound lead 3, and a large lead 4 having larger dimensions. It is preferable that the dual leads have a difference in size in the order of the center pitch> sound.

In addition, it is preferable to fix the bolt tube housing by closely contacting the wrench bolt inserted through the bolt hole formed at regular intervals along the circumference of one side of the bolt tube housing of the fine adjustment housing to one side of the nut tube housing.

In addition, it is preferable that adjustment mechanisms for adjusting the coupling are respectively formed up and down on both sides of the case of the coupling portion coupled between the motor shaft and the dual lead worm shaft of the drive motor.

In addition, the bolt hole for installing on the worktable on the outer surface of the case of the dual lead worm wheel is preferably formed at intervals of 45 degrees along the circumference.

According to the dual-lead worm reducer capable of fine-adjusting the backlash according to the scale of the present invention, the dual-lead worm reducer enables fine adjustment of the backlash even in the worm reducer, so that it is not only stable power transmission but also a precision worm reducer with high precision. It increases efficiency of the lamp and maintains precision even at high speed with the reduction ratio of 10.25: 1.

In addition, there is an effect of improving the product reliability of the worm reducer by the continuous adjustment of the continuous backlash of the dual-lead worm reducer, the service life of the dual-lead worm reducer is significantly longer than the general worm reducer is preferable in terms of economic It works.

In particular, by adjusting the dual-lead worm shaft at the correct distance in accordance with the scale marked on the bolt tube housing of the fine adjustment housing has an effect that the abnormal backlash adjustment is more precise.

Moreover, the disassembly of the coupling for adjusting the abnormal backlash is made easier by the adjusting holes formed in various places of the case, so that the adjustment of the coupling is made easier, and the work is performed by bolt holes formed at 45 degree intervals on the outer surface of the case. The installation direction of the dual league worm reducer installed on the table can be selected in various ways.

As such, the dual-lead worm reducer has great economic feasibility in products, but if parts value alone is known to domestic and global markets, it will have a significant effect.

1 is a side view of a dual-lead worm shaft used in a dual-lead worm reducer capable of fine-adjusting backlash according to the present invention.
Figure 2 is an enlarged view of the worm screw portion of the dual-lead worm shaft used in the dual-lead worm reducer capable of fine adjustment of the backlash by the scale according to the present invention
Figure 3 is a partial longitudinal cross-sectional view of the dual-lead worm reducer capable of fine adjustment of the backlash by the scale according to the present invention
Figure 4 is a rear view of the dual-lead worm reducer capable of fine adjustment of the backlash by the scale according to the present invention
Figure 5 is an exploded perspective view of the fine adjustment housing of the dual-lead worm reducer capable of fine adjustment of the backlash by the scale according to the present invention
6 is a perspective view of the microadjustment housing of the dual-lead worm reducer capable of fine-tuning the backlash by the scale according to the present invention

Hereinafter, with reference to the accompanying drawings a preferred embodiment of a dual-lead worm reducer capable of fine-tuning the backlash by the scale according to the present invention will be described in detail. The present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, only this embodiment to make the disclosure of the present invention complete and to those skilled in the art to fully understand the scope of the invention It is provided to inform you.

1 and 2, the worm shaft 10 of the worm reducer according to the present invention is characterized in that the worm screw portion 1 is formed of a dual lead.

The dual lead is the dimension of the center pitch (2) which is the distance between the peak (7) and the center of the mountain facing each other of the worm screw portion (1) consisting of a peak and a valley in the worm shaft (10), and the left pitch surface of the peak Solead which is the distance between the point 3a where 8a1 and the reference pitch line PL meet and the point 3b where the left pitch surface 8a2 of the next mountain meets the reference pitch line PL. (3), the point 4a where the right pitch surface 8b1 of the peak meets the reference pitch line PL, and the point 4b where the right pitch surface 8b2 of the next peak meets the reference pitch line PL. The distance between the large lead (大 lead) (4) is different from each other.

For example, the center pitch is 6.151 mm, the sound rod is 6.091 mm, and the large lead is 6.211 mm, which is smaller in order of large lead <center pitch <sound. When the worm screw portion is processed, the worm screw portion 1 of the dual lead worm shaft 10 is formed of a dual lead in which the thickness of the acid 7 becomes thicker from the left to the right as shown in the drawings, and the respective dimensions are It may vary depending on the size and type of the dual-lead worm shaft 10.

The dual lead worm shaft 10 is the most stable to use the special steel material SCM415, this material has the advantage of excellent hardness and strength, particularly tensile strength.

Meanwhile, although not shown, in the worm gear set in which the dual lead worm shaft 10 and the worm wheel 11 are engaged with each other, the worm screw portion of the worm wheel 11 is also formed as a dual lead as described above. It is not the reference pitch line PL but the pitch circle diameter (PCD), that is, the pitch circle diameter, which meets the pitch surface of the large lead.

The dual lead worm wheel 11 is stable to use ALBC made of aluminum alloy material, this material has a good condition as a worm wheel material, as well as good tensile strength and sliding.

3 is a partial longitudinal cross-sectional view of a dual-lead worm reducer capable of fine tuning the backlash by the scale according to the present invention, Figure 4 is a rear view of a dual-lead worm reducer capable of fine-adjusting the backlash by the scale according to the present invention. will be.

3 and 4, the dual lead worm reducer according to the present invention is a case (9), dual lead worm shaft (10), dual lead worm wheel (11), fine adjustment housing (12) tapered reel bearing ( 14), the coupling 16, and the motor 13.

The case 9 accommodates the dual-lead worm shaft 10 and the like except for the motor 13, and a cast iron (FCD) is generally used as the material, and the disadvantage is that the material is crude and heavy. However, it is stable in ambient environment, temperature, air pressure and tensile strength.

In addition, four outer side surfaces of the case 9 in which the coupling 16 is positioned are provided with a total of four adjusting holes 9a, which are coincident with the outer circumferential surface of the coupling 16, two up and down, respectively. On the outer surface of the case (9) where the worm wheel (11) is located, eight bolt holes (9b) are formed at a 45-degree interval along the circumference of the bolt holes (9b) for coupling to the work table (not shown) and installed.

The dual lead worm shaft 10 has a worm screw 1 having a dual lead as described above. The dual lead worm shaft 10 has a worm wheel 11 in which a worm screw part is formed of dual leads. It is a set.

The tapered needle bearing 14 is axially coupled to one side of the dual lead worm shaft 10, that is, the left side in the drawing at a slight distance from each other.

The fine adjustment housing 12 is a nut pipe housing 12a in the form of a screwed outer bolt pipe housing 12b having a central portion penetrated by an inner nut pipe housing 12a. It is inserted into one side of the case (9) which is integrally coupled and opened while receiving into the penetrated central part of the bolt hole (15a) formed at regular intervals on the outer circumferential surface of one side of the bolt tube housing (12) in the wrench bolt ( 15b) is inserted into and adhered to one side of the nut tube housing 12a to fix the bolt tube housing 12b, and the outer surface of the bolt tube housing 12b is blocked by the same as the rubber plate 12c.

The coupling 16 connects the motor shaft of the motor 13 and the dual lead worm shaft 10 to both sides, and when the two coupled shafts rotate with each other, the coupling 16 can rotate stably while matching the central axes. Wrench bolt (16a) is inserted into the outer peripheral surface of the coupling (16) in the portion corresponding to the adjustment hole (9a) formed in the case (9), so that the wrench bolt (16a) The dual lead worm shaft 10 is coupled to or separated from the dual lead worm shaft 10.

The motor 13 is coupled to the coupling 16 via a motor shaft to be connected to the other side of the dual lead worm shaft 10, ie, to the right in the drawing, thereby rotating the dual lead worm shaft 10 at high speed. When the lead worm shaft 10 rotates at high speed by the motor 13 through the coupling 16, the dual lead worm wheel 11 engaged with the dual lead worm shaft 10 rotates at a low speed, thereby serving as a speed reducer. Will be

At this time, the dual-lead worm shaft 10 which is axially coupled via the motor shaft and the coupling 16 of the motor 13 has a clearance of at least 3 mm and a maximum of 15 mm depending on the type and size for fine adjustment. It is coupled to the shaft so as to move along the motor shaft to move straight to the left and right.

5 is an exploded perspective view of the fine adjustment housing of the dual-lead worm reducer capable of fine adjustment of the backlash by the scale according to the present invention, Figure 6 is a fine adjustment of the dual-lead worm reducer capable of fine adjustment of the backlash by the scale according to the present invention The combined perspective view of the housing is shown.

As shown in FIGS. 5 and 6, the fine adjustment housing 12 is configured in a form in which a bolt-shaped bolt tube housing 12b having a central portion penetrated through a nut tube housing 12a is screwed. The reference line is marked at a specific position on the outer circumferential surface of the nut tube housing 12a, and the scale facing the reference line is located along the circumferential surface on the outer circumferential surface corresponding to the bolt head of the bolt tube housing 12b. It is divided into equal parts, and between each 15 divisions, there are 5 divisions.

In the dual-lead worm reducer of the present invention configured as described above, a process of finely adjusting the backlash using the scale indicated on the bolt tube housing of the fine adjustment housing will be described in detail as follows.

First, the dual-lead worm reducer maintains the normal backlash between the dual-lead worm shaft 10 and the worm wheel 11 that are engaged with each other for a predetermined time during use, but when the dual-lead worm reducer is used for a long time longer than a predetermined time, the dual-lead The thicker portion of the worm shaft portion 1 of the worm shaft 10 and the worm wheel 11 becomes thinner due to abrasion, and in this portion, the worm gear set of the dual lead worm shaft 10 and the worm wheel 11 The gap between the teeth of the worm screw portion 1 formed in the opening is increased a lot to achieve an abnormal backlash.

In this abnormal backlash state, since the dual lead worm shaft 10 and the worm wheel 11 are engaged with the worm reducer in operation, the normal backlash should be made.

The normal or abnormal backlash may be manually rotated on the dual lead worm shaft 11 on the dual lead worm shaft 10 even when a general worker is in the stationary state of the dual lead worm wheel 11 so that the dual lead worm wheel 11 has a gap, that is, the backlash. You can feel the movement by and judge easily.

The normal or abnormal backlash may be manually rotated on the dual lead worm shaft 11 on the dual lead worm shaft 10 even when a general worker is in the stationary state of the dual lead worm wheel 11 so that the dual lead worm wheel 11 has a gap, that is, the backlash. The gap between the normal backlash is about 0.01 ~ 0.02mm, but the backlash of the abnormal gap gap that is opened to about 0.03 ~ 0.05mm due to the wear caused by the operation of the worm reducer do.

Accordingly, when the bolt tube housing 12a of the fine adjustment housing 12 is rotated, the dual lead worm shaft 10 which is axially coupled via the tapered needle bearing 14 is connected to the motor 13 through the coupling 16. While rotating on the motor shaft of the fine linear movement to the left and right, the clearance gap is increased by such a fine linear movement to maintain an abnormal backlash, that is, to the dual lead worm shaft 10 and the worm wheel 11 The clearance gap between the teeth of the formed worm screw part 1 becomes narrow gradually.

In this case, in general, the characteristics of the worm reducer of the present invention is a normal backlash maintains a clearance gap of 0.01 ~ 0.02mm, but as described above, when formed with an abnormal backlash of a gap spacing of 0.03 ~ 0.05mm by the wear, as described above Rotating the bolt tube housing 12b with equal divisions about one reference line indicated on the nut tube housing 12a reduces the clearance gap of 0.15 mm due to the rotational linear movement of the dual lead worm shaft 10. Since the interval of the first division of 15 divisions is reduced by 0.01 mm, the gap interval that needs to be adjusted by the backlash is usually well known from 0.01 mm to 0.04 mm. 12b) is rotated from the movement of the first division to the movement of the division of two divisions or more, so that the backlash that maintains the normal clearance gap It can be finely adjusted.

Since the fine adjustment of the backlash can be carried out continuously until the acid thickness of the dual-lead worm shaft 10 and the worm screw portion 1 of the worm wheel 11, which is thicker, reaches a certain limit due to wear, the worm reducer As the life span of the is extended, it can be used semi-permanently as the power is transmitted stably.

On the other hand, on the outer surface of the case 9 of the dual lead worm wheel 11 of the dual lead worm reducer of the present invention, eight bolt holes 9b for installing on a work table are spaced at 45 degree intervals along the circumference of the plane. Since it is installed, when the dual-lead worm reducer is fixed to the worktable (not shown) through the bolt hole 9b and installed, the direction of the dual-lead worm shaft 10 is adjusted at intervals of 45 degrees, depending on the installation location. It can be installed freely in the direction.

As described above with reference to the illustrated drawings for the dual-lead worm reducer capable of fine-tuning the backlash by the scale according to the present invention, the present invention is not limited by the embodiments and drawings disclosed herein, Various modifications may be made by those skilled in the art within the scope of the technical idea of the invention.

1: Worm screw part 2: Center pitch
3: sound lid 4: large lead
7: Mountain of warm thread part 8a1,8a2: Left pitch plane
8b1,8b2: right pitch surface 9: case
9a: adjusting hole 9b, 15a: bolt hole
10: Dual lead worm shaft 11: Dual lead worm wheel
12: fine adjustment housing 12a: nut tube housing
12b: bolt tube housing 12c: rubber plate
13: motor 14: tapered bearing
16 Coupling 15b, 16a Wrench Bolt

Claims (5)

The dimension of the center pitch 2, which is the distance between the peaks 7 and the center of the peaks of the worm screw portion 1 formed of the peaks and valleys, and the left pitch surface 8a1 and the reference pitch line PL of the peaks The dimension of the sound 3, which is the distance between the point of meeting and the left pitch face 8a2 of the next mountain and the point 3a where the reference pitch line PL meets, and the right pitch face 8b1 of the mountain and the reference The size of the large lead 4, which is the distance between the point 4a where the pitch line PL meets and the point 4a where the right pitch surface 8b2 of the next mountain and the reference pitch line PL meet each other, A dual lead worm shaft 10 having the acid 7 thicker in one direction;
A dual lead worm wheel 11 having a central pitch such as the dual lead worm shaft 10 and a worm screw portion of a sound lead and a large lead and engaged with the dual lead worm shaft 10;
A motor 13 axially coupled with the coupling 16 to one side of the dual lead worm shaft 10 so as to allow the dual lead worm shaft 10 to flow along the motor shaft direction;
It consists of a nut tube housing 12a and a bolt tube housing 12b which are screwed together, and the bolt tube housing 12b is axially coupled to the other side of the dual lead worm shaft 10 through a tapered needle bearing 14. A fine adjustment housing 12 in which a reference line is displayed on the outer circumferential surface of the nut pipe housing 12a and the graduations facing the reference line are spaced at regular intervals along the outer circumferential surface of the bolt pipe housing 12b; And
A case 9 accommodating the dual lead worm shaft 10 and the worm wheel 11;
Rotating straight movement along the motor shaft direction while the dual-lead worm shaft 10 is rotated on the motor shaft of the motor 13 by the manual operation of rotating the bolt tube housing 12b to the scale Dual backlash fine adjustment possible by the scale, characterized in that it is possible to adjust the abnormal backlash of the dual-lead worm shaft 10 and the worm wheel 11, the wear and tear more wide open the gap by using continuously Lead worm reducer.
The method of claim 1,
The worm screw portion 1 of the worm gear set in which the dual lead worm shaft 10 and the worm wheel 11 are engaged with each other has a center pitch 2, a sound lead 3, and a large lead 4 having a large lead> center pitch. > A dual-lead worm reducer capable of fine adjustment of backlash by a scale, characterized in that the dual-lead has a difference in size in the order of sound.
The method according to claim 1 or 2,
On the scale characterized in that the bolt bolt housing is fixed to one side of the nut tube housing by a wrench bolt inserted through the bolt hole formed at regular intervals along the circumference of the bolt tube housing one side of the fine adjustment housing in close contact with one side of the nut tube housing. Dual worm worm reducer with fine backlash adjustment.
The method according to claim 1 or 2,
Dual-lead worms capable of fine-adjusting backlash by a scale, characterized in that the adjustment mechanism for adjusting the coupling is formed up and down on both sides of the case of the coupling portion coupled between the motor shaft and the dual lead worm shaft of the drive motor. reducer.
The method according to claim 1 or 2,
A dual-lead worm reducer capable of fine adjustment of backlash by a scale, characterized in that the bolt hole for installing on the worktable on the outer surface of the case of the dual-lead worm wheel portion is formed at intervals of 45 degrees along the circumference.
KR1020100021715A 2010-03-11 2010-03-11 Decelerate of dual lead worm as possible fine control of back-lash by scale KR20110102619A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020100021715A KR20110102619A (en) 2010-03-11 2010-03-11 Decelerate of dual lead worm as possible fine control of back-lash by scale
PCT/KR2011/001577 WO2011111970A2 (en) 2010-03-11 2011-03-08 Dual-lead worm decelerator capable of finely controlling backlash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100021715A KR20110102619A (en) 2010-03-11 2010-03-11 Decelerate of dual lead worm as possible fine control of back-lash by scale

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190066815A (en) * 2017-12-06 2019-06-14 삼성중공업 주식회사 Worm-gear assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190066815A (en) * 2017-12-06 2019-06-14 삼성중공업 주식회사 Worm-gear assembly

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