KR101572785B1 - tension control apparatus for a chain - Google Patents
tension control apparatus for a chain Download PDFInfo
- Publication number
- KR101572785B1 KR101572785B1 KR1020150111543A KR20150111543A KR101572785B1 KR 101572785 B1 KR101572785 B1 KR 101572785B1 KR 1020150111543 A KR1020150111543 A KR 1020150111543A KR 20150111543 A KR20150111543 A KR 20150111543A KR 101572785 B1 KR101572785 B1 KR 101572785B1
- Authority
- KR
- South Korea
- Prior art keywords
- piston
- chain
- tension
- spring
- rail
- Prior art date
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Classifications
-
- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
BACKGROUND OF THE
The power transmission structure of a motor used for a conveyor line or a mechanical device transmits the power generated by the motor to the driven shaft by using a gear, a belt or a chain. In the case of the chain, a chain is interposed between the drive shaft and driven shaft, When the tension applied to the chain is lowered, the power transmission between the drive shaft and the driven shaft may not be smoothly performed, the chain may derail from the sprocket, On the other hand, if the tension on the chain suddenly increases, the chain may be damaged.
As a conventional technique for adjusting the tension of a chain in order to solve such a problem, there is a tension adjusting device of a chain belt proposed in Utility Model No. 20-0220721.
The tension measuring device includes a tension adjuster having a sprocket attached to an inner surface of a housing through which a sprocket engaged with a chain belt is exposed on one side of a front side of a chain belt connected to a driving shaft and a driven shaft, A pressure setting plate having a plurality of guide rods penetrating the bottom surface thereof and formed on the upper surface thereof; A pressure adjusting bolt screwed to the pressure setting plate is exposed on a bottom surface of the housing and a guide groove is formed on a front surface of the housing to elevate and retract the shaft rod of the sprocket. A tension adjusting device for a chain belt is disclosed in which a tension adjusting member is simply inserted into a housing so that movement of the tension adjusting member can not be smoothly performed.
In other words, since there is no separate structure between the housing and the tension regulator, the tension regulator can not be moved due to the movement of the tension regulator, so that the gap between the housing and the tension regulator In case of large size, due to the gap between the tension regulator and the housing, the tension adjuster hits the housing and a lot of noise is generated.
In addition, there is a fear that the force of the tension regulating opening acts only in one direction for increasing the tension applied to the chain, thereby shortening the life of the chain due to the tension adjusting device.
Furthermore, since the two guide rods are coupled to the pressure setting plate and the springs are respectively coupled to the guide rods, the manufacturing cost is increased due to an increase in the number of parts, and the tension adjusting rods are always pressed in only one direction. During the operation of adjusting the tension applied to the chain, an excessive load is applied to the chain, which may damage the chain or shorten the service life of the chain over time.
Accordingly, in the present invention, the power generated by the motor is installed on one side of a chain that transmits the power to the driven shaft, and when the tension applied to the chain rapidly increases due to the foreign matter being pinched or the like, And to provide a tension adjusting device for a chain that can be maintained.
Another object of the present invention is to provide a tension adjusting device for a chain in which a rail is installed in a case of a structure of the tension adjusting device and a piston is moved along the rail to smoothly move the piston and reduce noise .
Further, it is possible to provide a tension adjusting device for a chain in which a first spring and a second spring are provided at the lower portion and the upper portion of the piston, respectively, so as to improve the moving speed of the piston, thereby quickly responding to a sudden change in the tension applied to the chain .
A tension adjusting device for adjusting a tension applied to a chain in a chain according to the present invention is characterized in that the tension adjusting device comprises a case having a hollow inside and a rail formed on both sides of the inner side, A second spring formed between the upper plate and the piston and a second spring formed between the upper plate and the piston, and a middle plate formed on the lower portion of the piston, A first spring interposed between the middle plate and the piston, an elastic force adjusting bolt formed at a lower portion of the middle plate to adjust the position of the middle plate, a lower plate formed at a lower portion of the elastic force adjusting bolt, And is moved like a piston and is rotated It is characterized by consisting of a sprocket.
The tensioning device for a chain according to the present invention is installed on one side of a chain for transmitting power generated by a motor to a driven shaft so that when a tensile force applied to the chain rapidly increases due to a foreign matter being pinched or the like, And the piston is moved along the rail, thereby smoothly moving the piston and reducing the noise. In addition, the tension of the tension adjusting device can be maintained constant, And a first spring and a second spring are provided on the lower portion and the upper portion of the piston to improve the moving speed of the piston, thereby rapidly responding to a sudden change in the tension applied to the chain.
BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Figure 2 is a partial perspective view of the present invention.
3 is a partial schematic view of the present invention
Figure 4 is a block diagram
5 is a partial schematic view of the present invention
6 is a diagram illustrating an example of the use state of the present invention
BACKGROUND OF THE
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 3 is a partial structural view of the present invention, FIG. 4 is a separated structural view of the present invention, FIG. 5 is a sectional view of the present invention In the
First, the
A
An
A
The
A part of the
A
Hereinafter, the operation of the present invention will be described.
6, when the
On the other hand, the
The
The
The
As a result, the tension adjusting device for a chain according to the present invention is installed at one side of a chain that transmits power generated by a motor to a driven shaft, and when the tensile force applied to the chain temporarily increases rapidly due to insertion of a foreign object or the like, In the structure of the tension adjusting device, a rail is provided in the case and the piston is moved along the rail, thereby smoothly moving the piston and reducing the noise. And a first spring and a second spring are installed on the lower portion and the upper portion of the piston, respectively, to improve the moving speed of the piston, thereby rapidly responding to a sudden change in the tension applied to the chain.
1.
3. Motor 4. Drive shaft
5. The driven shaft
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12.
14. Fitting Holes 15. Holes
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28.
30. Nut
31.
Claims (6)
The tension regulating device 1 includes a case 10 having a hollow interior and a rail 11 formed on both sides of the inner surface thereof and a piston 10 accommodated in the case 10 and reciprocating along the rail 11, An upper plate 23 formed on the upper portion of the piston 12 and fixed to the case 10 and a second spring 22 interposed between the upper plate 23 and the piston 12, A middle plate 18 formed under the piston 12 and a first spring 16 interposed between the middle plate 18 and the piston 12; An elastic force adjusting bolt 20 for adjusting the position of the middle plate 18 and a lower plate 21 formed at a lower portion of the elastic force adjusting bolt 20 and a piston bolt 24 And a sprocket 25 which is moved and rotated together with the piston 12 ,
The middle plate 18 is formed with a ring-shaped coupling groove 19, a screw is formed in the coupling groove 19, and a hollow pipe 17 hollow inside is coupled to the hollow plate 18, A screw having a shape corresponding to the screw is formed on an outer circumferential surface of the pipe 17 so that the middle plate 18 and the hollow pipe 17 are screwed and fixed to each other. Characterized in that a first spring (16) is inserted.
The rail 11 formed in the case 10 has a dovetail cross section and a guide groove 13 having a shape corresponding to the rail 11 is formed on the piston 12, Wherein the movement of the piston (12) is smooth even when the load is deviated from the direction in which the rail (11) is formed, thereby preventing noise.
A groove 33 is formed at the center of the lower plate 21 and a head portion of the elastic force adjusting bolt 20 is inserted into the groove 33. One end of the elastic force adjusting bolt 20 is inserted into the middle plate 18, Wherein the tension of the chain is adjusted by the tension of the chain.
Wherein a part of the hollow pipe (17) is inserted into the fitting groove (14) formed in the piston (12), thereby preventing the first spring (16) from coming off.
The first spring 16 is higher than the spring constant k of the second spring 22 so that when the tension of the chain 2 is suddenly lowered, the ascending speed of the piston 12 is sucked, Of the chain (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150111543A KR101572785B1 (en) | 2015-08-07 | 2015-08-07 | tension control apparatus for a chain |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150111543A KR101572785B1 (en) | 2015-08-07 | 2015-08-07 | tension control apparatus for a chain |
Publications (1)
Publication Number | Publication Date |
---|---|
KR101572785B1 true KR101572785B1 (en) | 2015-11-27 |
Family
ID=54847819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150111543A KR101572785B1 (en) | 2015-08-07 | 2015-08-07 | tension control apparatus for a chain |
Country Status (1)
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KR (1) | KR101572785B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170127265A (en) * | 2016-05-11 | 2017-11-21 | 차민석 | the plane light source unit of exposure equipment printed circuit board |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200220721Y1 (en) * | 2000-11-06 | 2001-04-16 | 차영희 | Tension controller of chain belt |
-
2015
- 2015-08-07 KR KR1020150111543A patent/KR101572785B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200220721Y1 (en) * | 2000-11-06 | 2001-04-16 | 차영희 | Tension controller of chain belt |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170127265A (en) * | 2016-05-11 | 2017-11-21 | 차민석 | the plane light source unit of exposure equipment printed circuit board |
KR101869318B1 (en) | 2016-05-11 | 2018-06-20 | 차민석 | the plane light source unit of exposure equipment printed circuit board |
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