CN211585227U - A accurate positioning device for stage jib - Google Patents
A accurate positioning device for stage jib Download PDFInfo
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- CN211585227U CN211585227U CN201922483926.1U CN201922483926U CN211585227U CN 211585227 U CN211585227 U CN 211585227U CN 201922483926 U CN201922483926 U CN 201922483926U CN 211585227 U CN211585227 U CN 211585227U
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- length measuring
- measuring wheel
- cable
- hawser
- rotary
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Abstract
The utility model discloses an accurate positioning device for stage jib, including mount, hawser and cable winder, still include: the rotary length measuring wheel is positioned on one side of the fixing frame, an encoder is arranged in the rotary length measuring wheel, and an alignment groove matched with the cable is formed in the outer side wall of the rotary length measuring wheel; the auxiliary limiting mechanism is positioned on the front surface of the fixing frame and is positioned on the other side of the cable relative to the rotary length measuring wheel; through installing the length measuring wheel alone, install the encoder and calculate hawser receive and release length on the length measuring wheel and can effectively avoid because the accumulative error that the winding stack of cable winder hawser caused for thereby the height of receiving and releasing of jib can be by the accurate arrival assigned position that can make the jib can be accurate in the interface of difference of system calculation, and installed through the design and be located complementary unit and be convenient for make hawser and length measuring wheel in close contact with, prevent that the length measuring wheel from skidding, further increase measuring accuracy.
Description
Technical Field
The utility model relates to a hawser length measurement technical field especially relates to an accurate positioning device for stage jib.
Background
Stage suspenders often articulate equipment such as curtains, stage lamps for the rendering of stage. The main components are a suspender, a cable, an electric suspender, a controller and the like.
In the past, the position of the suspender is positioned by an encoder arranged on a cable winder, the rotation number of turns of the cable winder is detected by the encoder to calculate the lifting length of the cable rope, but the cable rope is wound on the cable winder to form superposition, the circumference of the cable rope is wound on the cable winder, the circumference of an inner ring is smaller than that of an outer ring of the bearing, so that the length of the cable rope cannot be accurately calculated by calculating the circumference, the height of the cable rope cannot be accurately aligned, and therefore the accurate positioning device for the stage suspender is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an accurate positioning device for a stage suspender.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a precision positioning device for stage jib, includes mount, hawser and cable winder, still includes:
the rotary length measuring wheel is positioned on one side of the fixing frame, an encoder is arranged in the rotary length measuring wheel, and an alignment groove matched with the cable is formed in the outer side wall of the rotary length measuring wheel;
supplementary stop gear, supplementary stop gear is located the front surface of mount, and is located the hawser for the opposite side of rotating the length measuring wheel, supplementary stop gear includes fixed plate, spring expansion telescopic link, supplementary runner, the fixed plate is located the front surface of mount, just the fixed plate is connected with the front fixed surface of mount, install two at least spring expansion telescopic links on the lateral wall of fixed plate correspondence hawser, the supplementary runner is installed jointly to the end of spring expansion telescopic link.
Preferably, the spring expansion telescopic rod comprises an elastic element, an outer sleeve and an inner sleeve, a first end of the inner sleeve is slidably inserted into the outer sleeve, a second end of the inner sleeve is rotatably connected with the rotary length measuring wheel, and the elastic element is mounted inside the outer sleeve.
Preferably, the inner wall of the alignment groove is provided with anti-slip stripes.
Preferably, the number of the auxiliary rotating wheels of each auxiliary limiting mechanism is two, and the two auxiliary rotating wheels are respectively positioned at the upper end and the lower end of the rotary length measuring wheel.
Preferably, the front surface of mount has the motor, the top of mount is installed and is rolled up the cable ware, the motor passes through hold-in range and rolls up the transmission of cable ware.
Preferably, the position department that the mount front surface is close to the bottom installs and rotates the wheel, the below of mount has the jib, the outside winding of cable winder has the hawser, the hawser is through rotating the top fixed connection of wheel and jib.
Compared with the prior art, the beneficial effects of the utility model reside in that:
through installing the length measuring wheel alone, install the encoder and calculate hawser receive and release length on the length measuring wheel and can effectively avoid because the accumulative error that the winding stack of cable winder hawser caused, thereby it can be in the reacing assigned position that the difference can make the jib can be accurate to make the stage effect reach the best to make the jib receive and release height of jib can be calculated by system's accuracy, and installed through the design and be located complementary unit and be convenient for make hawser and length measuring wheel in close contact with, prevent that the length measuring wheel from skidding, further increase measuring accuracy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the part A of the present invention;
FIG. 3 is a schematic structural view of the rotary length measuring wheel of the present invention;
fig. 4 is a schematic view of the internal structure of the spring expansion telescopic rod of the present invention;
in the figure: 1. a fixed mount; 2. a motor; 3. a cable winder; 4. a rotating wheel; 5. a boom; 6. rotating the length measuring wheel; 7. a fixing plate; 8. the spring expands the telescopic rod; 9. aligning the groove; 10. an auxiliary runner; 11. a cable; 81. an expansion spring; 82. an outer pipe sleeve; 83. an inner pipe sleeve; 84. spacing anticreep board.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 4, a precise positioning device for a stage boom comprises a fixing frame 1, a cable 11 and a cable winder 3, and further comprises:
the rotary length measuring wheel 6 is positioned on one side of the fixed frame 1, the encoder is arranged in the rotary length measuring wheel 6, and the outer side wall of the rotary length measuring wheel 6 is provided with an alignment groove 9 matched with the cable 11;
supplementary stop gear, supplementary stop gear is located the front surface of mount 1, and be located hawser 11 for rotating the opposite side of length measuring wheel 6, supplementary stop gear includes fixed plate 7, spring expansion telescopic link 8, supplementary runner 10, fixed plate 7 is located the front surface of mount 1, and fixed plate 7 is connected with the front fixed surface of mount 1, install two at least spring expansion telescopic links 8 on the lateral wall that fixed plate 7 corresponds hawser 11, supplementary runner 10 is installed jointly to the end of spring expansion telescopic link 8.
Further, the spring expansion telescopic rod 8 comprises an expansion spring 81, an outer sleeve 82 and an inner sleeve 83, a first end of the inner sleeve 83 is slidably inserted into the outer sleeve 82, a second end of the inner sleeve 83 is rotatably connected with the rotary length measuring wheel 6, an elastic element is mounted inside the outer sleeve 82, the elastic element is the expansion spring 81, the expansion spring 81 pushes the inner sleeve 83 and the auxiliary rotating wheel 10 through elastic force, so as to be in close contact with the cable 11, and a first end of the inner sleeve 83 is provided with a limiting anti-falling plate 84.
Further, the inner wall of the aligning groove 9 is provided with anti-slip stripes to increase the friction force.
Furthermore, the number of the auxiliary rotating wheels 10 of each auxiliary limiting mechanism is two, and the two auxiliary rotating wheels 10 are respectively positioned at the upper end and the lower end of the rotary length measuring wheel 6.
Further, the front surface of the fixing frame 1 is provided with a motor 2, the top of the fixing frame 1 is provided with a cable winder 3, and the motor 2 is driven by the cable winder 3 through a synchronous belt.
Furthermore, a rotating wheel 4 is installed at a position, close to the bottom end, of the front surface of the fixing frame 1, a hanging rod 5 is arranged below the fixing frame 1, a cable 11 is wound on the outer side of the cable winder 3, and the cable 11 is fixedly connected with the top of the hanging rod 5 through the rotating wheel 4.
The utility model discloses a theory of operation and use flow:
when the device is used, the motor 2 drives the cable winder 3 to rotate to realize the rolling of the cable rope 11 and the height adjustment of the suspender 5, when the cable rope 11 is rolled, the rotary length measuring wheel 6 can be driven to rotate, and when the rotary length measuring wheel 6 rotates, the encoder can record the number of rotating turns of the rotary length measuring wheel 6, so that the rolling length of the cable rope 11 and the height adjustment of the suspender 5 are calculated;
and through upper and lower both ends auxiliary runner 10 because elasticity is spacing to hawser 11, be convenient for hawser 11 with rotate length measuring wheel 6 in close contact with, and rotate length measuring wheel 6 counterpoint recess 9 and hawser 11 and correspond, all can prevent to rotate the condition that length measuring wheel 6 takes place to skid, further increase the measuring degree of accuracy, and the encoder record rotates the number of turns of the rotation of length measuring wheel 6 and has been current mature technology, no longer repeated here.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a precision positioning device for stage jib, includes mount (1), hawser (11) and cable winder (3), its characterized in that still includes:
the length measuring device comprises a rotary length measuring wheel (6), wherein the rotary length measuring wheel (6) is positioned on one side of a fixed frame (1), an encoder is installed inside the rotary length measuring wheel (6), and an alignment groove (9) matched with a cable (11) is formed in the outer side wall of the rotary length measuring wheel (6);
supplementary stop gear, supplementary stop gear is located the front surface of mount (1), and is located hawser (11) for rotating the opposite side of length measuring wheel (6), supplementary stop gear includes fixed plate (7), spring expansion telescopic link (8), supplementary runner (10), fixed plate (7) are located the front surface of mount (1), just fixed plate (7) are connected with the front surface fixed of mount (1), install two at least spring expansion telescopic links (8) on fixed plate (7) correspond the lateral wall of hawser (11), supplementary runner (10) are installed jointly to the end of spring expansion telescopic link (8).
2. The device for accurately positioning a stage boom according to claim 1, wherein the spring expansion telescopic rod (8) comprises an elastic element, an outer sleeve (82) and an inner sleeve (83), a first end of the inner sleeve (83) is slidably inserted inside the outer sleeve (82), a second end of the inner sleeve (83) is rotatably connected with the rotary length measuring wheel (6), and the elastic element is mounted inside the outer sleeve (82).
3. A fine positioning device for stage pylons according to claim 1, wherein the inner walls of the alignment grooves (9) have anti-slip stripes.
4. The precise positioning device for the stage suspender as claimed in claim 1, wherein the number of the auxiliary rotating wheels (10) of each auxiliary limiting mechanism is two, and the two auxiliary rotating wheels (10) are respectively located at the upper end and the lower end of the rotary length measuring wheel (6).
5. The precise positioning device for the stage suspender as claimed in claim 1, wherein the front surface of the fixing frame (1) is provided with a motor (2), the top of the fixing frame (1) is provided with a cable winder (3), and the motor (2) is driven with the cable winder (3) through a synchronous belt.
6. The precise positioning device for the stage suspension rod according to claim 1, wherein the front surface of the fixed frame (1) is provided with a rotating wheel (4) near the bottom end, the fixed frame (1) is provided with a suspension rod (5) below, the outer side of the cable winder (3) is wound with a cable (11), and the cable (11) is fixedly connected with the top of the suspension rod (5) through the rotating wheel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922483926.1U CN211585227U (en) | 2019-12-31 | 2019-12-31 | A accurate positioning device for stage jib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922483926.1U CN211585227U (en) | 2019-12-31 | 2019-12-31 | A accurate positioning device for stage jib |
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| Publication Number | Publication Date |
|---|---|
| CN211585227U true CN211585227U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922483926.1U Active CN211585227U (en) | 2019-12-31 | 2019-12-31 | A accurate positioning device for stage jib |
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| CN (1) | CN211585227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114432662A (en) * | 2022-01-26 | 2022-05-06 | 嘉兴职业技术学院 | Pull-up trainer |
-
2019
- 2019-12-31 CN CN201922483926.1U patent/CN211585227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114432662A (en) * | 2022-01-26 | 2022-05-06 | 嘉兴职业技术学院 | Pull-up trainer |
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