CN108382995B - Operation method of adjustable balance suspender for stage - Google Patents
Operation method of adjustable balance suspender for stage Download PDFInfo
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- CN108382995B CN108382995B CN201810172526.6A CN201810172526A CN108382995B CN 108382995 B CN108382995 B CN 108382995B CN 201810172526 A CN201810172526 A CN 201810172526A CN 108382995 B CN108382995 B CN 108382995B
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- suspender
- fine adjustment
- reference object
- boom
- unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
- B66C13/085—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses an operation method of an adjustable balance suspender for a stage, the adjustable balance suspender for the stage comprises a suspender, a microcomputer, a level detection unit, a fine adjustment unit and an alarm unit, wherein the suspender is pulled by ropes at two ends, and the operation method comprises the following steps: step one, a horizontal detection unit detects whether a suspender deviates or not and transmits the result to a microcomputer; step two, the microcomputer analyzes the detection result, and if the deviation value is not greater than a threshold value one, the suspender is in a horizontal state; if the deviation value is larger than the first threshold and not larger than the second threshold, the fine adjustment unit adjusts the suspender to enable the suspender to recover the horizontal state; if the deviation value is larger than the threshold value two, the alarm unit gives an alarm to the outside. The invention can monitor the horizontal state of the suspender in real time, discover the unbalanced state of the suspender in time, and then correct the state of the suspender in time, so that the suspender is kept in the horizontal state. And then, can guarantee that the stage property of installing on the jib is in balanced state.
Description
Technical Field
The invention relates to the technical field of stage equipment, in particular to an operation method of an adjustable balance suspender for a stage.
Background
With the continuous improvement of living standard, the requirement of audience on the effect of the literary and artistic performance is higher and higher. The stage is an indispensable part of the performance matching and plays an important role in the performance effect. During the performance, often need use some liftable props, among the prior art, use the motor to pull the rope and drive the prop and rise or descend usually, in the use, how to keep the balanced state of prop is an unavoidable problem.
Disclosure of Invention
According to the defects of the prior art, the invention provides the operation method of the adjustable balance suspender for the stage, the state of the suspender is kept in a horizontal state through measurement and adjustment of the state of the suspender, and further, the prop arranged on the suspender can be ensured to be in a balanced state.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an operation method of an adjustable balance suspender for a stage, the adjustable balance suspender for the stage comprises a suspender, a microcomputer, a level detection unit, a fine adjustment unit and an alarm unit, wherein the suspender is pulled by ropes at two ends,
the operation method comprises the following steps:
the method comprises the following steps that firstly, a horizontal detection unit detects whether a suspender deviates or not and transmits a result to a microcomputer;
step two, the microcomputer analyzes the detection result, and if the deviation value is not greater than the threshold value one, the suspender is in a horizontal state; if the deviation value is greater than the first threshold value and not greater than the second threshold value, the fine adjustment unit adjusts the suspender to enable the suspender to be restored to the horizontal state; if the deviation value is larger than the threshold value two, the alarm unit gives an alarm to the outside.
As a further improvement of the present invention, the level detecting unit detecting process includes:
s1, a reference object is kept vertical to a horizontal plane;
s2, measuring distances L1 and L2 between two ends of the suspender and a reference object, and transmitting data to a microcomputer;
s3, the microcomputer converts the detection value into an offset value F.
As a further improvement of the present invention, in S3, the conversion method is:
l1 and L2 are distances between two ends of the suspender and the respective reference objects;
l is the distance of the reference object from the center point of the boom.
As a further improvement of the present invention, the adjustment amount of the fine adjustment unit is:
wherein, X1-the fine adjustment unit is a pulley block, and the number of the fine adjustment units is the adjustment amount of one time;
l1, L2, the distance between the two ends of the suspender and the reference object respectively;
l is the distance of the reference object from the center point of the boom.
As a further improvement of the present invention, the adjustment amount of the fine adjustment unit is:
wherein, X2-the fine adjustment unit is a pulley block, and the number of the fine adjustment units is the adjustment amount when two;
l1, L2, the distance between the two ends of the suspender and the reference object respectively;
l is the distance of the reference object from the center point of the boom.
As a further improvement of the present invention, the adjustment amount of the fine adjustment unit is:
wherein Y1-the fine adjustment unit is a second winding drum, and the number of the fine adjustment units is the adjustment amount when the number is one;
l1 and L2 are distances from two ends of the suspender to the reference object respectively;
r is the radius of the second winding drum;
l is the distance of the reference object from the center point of the boom.
As a further improvement of the present invention, the adjustment amount of the fine adjustment unit is:
wherein Y2 is a second winding drum, and the number of the fine adjustment units is the adjustment amount of two;
l1, L2, the distance between the two ends of the suspender and the reference object respectively;
r is the radius of the second winding drum;
l is the distance of the reference object from the center point of the boom.
The invention has the beneficial effects that:
the invention can monitor the horizontal state of the suspender in real time, discover the unbalanced state of the suspender in time, and then correct the state of the suspender in time, so that the suspender is kept in the horizontal state. And then, can guarantee that the stage property of installing on the jib is in balanced state.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view of the present embodiment;
FIG. 2 is a schematic diagram of a measurement of the level detection unit;
FIG. 3 is a schematic view of the fine tuning unit being a pulley block;
FIG. 4 is a schematic view of the fine tuning unit being a second reel.
In the figure: 1-reel one, 2-guide wheel one, 3-rope one, 4-rope two, 5-support two, 6-steering wheel two, 7-sliding block, 8-reference object, 9-suspension rod, 10-sensor two, 11-fine adjustment unit, 11 a-fixed pulley, 11 b-movable pulley, 11 c-telescopic rod, 11 d-reel two, 12-rail and 13-sensor one.
Detailed Description
The following embodiments are provided to explain the present invention, such as the shape, structure, mutual position and connection relationship of the components, the function and working principle of the components, the manufacturing process and the operation and use method, etc., in further detail through the description of the embodiments, so as to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solution of the present invention.
As shown in fig. 1, an adjustable balance suspension rod for a stage comprises a rail 12, wherein the rail 12 is arranged above the stage, one end of the rail 12 is fixed with a first support, and the first support is provided with a rotatable first winding drum 1. The second bracket 5 moving along the track 12 is arranged on the track 12, the sliding block 7 is arranged between the second bracket 5 and the track 12, the sliding block 7 is fixed on the second bracket 5, and the sliding block 7 is movably arranged in the track 12. Two ends of the second bracket 5 are respectively provided with a first steering wheel and a second steering wheel 6 which can rotate. A suspender 9 is arranged below the track 12, a first rope 3 and a second rope 4 are respectively wound on the first winding drum 1, one ends of the first rope 3 and the second rope 4 are fixed on the first winding drum 1, and the other ends of the first rope 3 and the second rope 4 respectively penetrate through the first steering wheel and the second steering wheel 6 and are fixed at two ends of the suspender 9.
In order to prevent the first rope 3 and the second rope 4 wound on the first winding drum 1 from interfering with each other, the first rope 3 and the second rope 4 are respectively wound on different areas of the first winding drum 1, a third support is further fixed on the rail 12, a first guide wheel 2 and a second guide wheel (which coincide with the first guide wheel in the drawing) which can rotate are arranged on the third support, the end portion of the first rope 3 sequentially penetrates through the first guide wheel 2 and the first steering wheel and then is fixed at one end of the hanging rod 9, and the end portion of the second rope 4 sequentially penetrates through the second guide wheel and the second steering wheel 6 and then is fixed at the other end of the hanging rod 9.
The adjustable balance suspender 9 for the stage further comprises a microcomputer (not shown in the figure), a level detection unit and a fine adjustment unit 11, the first winding drum 1, the sliding block 7, the level detection unit and the fine adjustment unit 11 are electrically connected with the microcomputer, the microcomputer controls the lifting and/or translation of the suspender 9 by controlling the first winding drum 1 and/or the sliding block 7, the level detection unit is used for detecting whether the suspender 9 is in a horizontal state and transmitting a measurement signal to the microcomputer, and the fine adjustment unit 11 is used for receiving the signal of the microcomputer and adjusting the suspender 9 to keep the horizontal state.
The horizontal detection unit comprises a first sensor 13, a second sensor 10 and a reference object 8, the reference object 8 is hung in the middle of the suspension rod 9, the reference object 8 is always vertical to the horizontal plane under the action of gravity, and the first sensor 13 and the second sensor 10 are symmetrically arranged at two ends of the suspension rod 9 and are used for measuring the distance from the first sensor to the reference object 8. The first sensor 13 and the second sensor 10 are both distance measuring sensors, and specifically, infrared distance measuring sensors or ultrasonic distance measuring sensors may be used.
The adjustable balance suspension rod 9 for stage further comprises an alarm unit (not shown in the figure), which is electrically connected with the microcomputer.
A first threshold and a second threshold are arranged in the microcomputer, the first threshold is smaller than the second threshold and can be manually set according to needs, the horizontal detection unit sends a detection result of the suspender 9 to the microcomputer, the microcomputer compares the detection result with the first threshold and/or the second threshold, and if the deviation value is not larger than the first threshold, the suspender 9 is considered to be in a horizontal state and does not need to be adjusted; if the deviation value is greater than the first threshold and not greater than the second threshold, the fine adjustment unit 11 adjusts the suspender 9 to restore the horizontal state; if the deviation value is larger than the second threshold value, the alarm unit gives an alarm to the outside to remind a worker to overhaul.
As shown in fig. 2, the amount of deflection of the boom 9 is calculated as follows.
Assuming that the boom 9 is deflected from a horizontal a 'B' position to an inclined AB position about a center point D, the first sensor 13 is deflected from the a 'position to the a position, the second sensor 10 is deflected from the B' position to the B position, the reference object 8 is always in the C position, the distance DC of the reference object 8 from the center position of the boom 9 has a value L, the distance AC of the reference object 8 from the first sensor 13 has a value L1, the distance BC of the reference object 8 from the second sensor 10 has a value L2, the a and B positions are respectively located on both sides of the a 'B' and are respectively located at distances H1 and H2 from the a 'B', and the a and B positions are respectively located on both sides of the DC and are respectively located at distances S1 and S2 from the DC.
According to the pythagorean theorem, it can be known,
L1 2 ＝S1 2 +(L-H1) 2 ；
L2 2 ＝S2 2 +(L+H2) 2 ；
since the triangles Δ a 'AD and Δ B' BD are congruent triangles and H1 and H2 are heights corresponding to the longest sides within the triangles Δ a 'AD and Δ B' BD, respectively, H1= H2= H, and further S1= S2 can be derived. Therefore, it is not only easy to use
L2 2 -L1 2 ＝4HL；
In the formula, 4 is a constant, L is a fixed value, and L1 and L2 are measured by the first sensor 13 and the second sensor 10, so that H can be obtained, wherein H refers to the offset of the first sensor 13 and the second sensor 10 in the vertical direction. For the boom 9, the horizontal deflection is much smaller than the vertical deflection when the deflection occurs, so the horizontal deflection is negligible. Therefore, the offset of the boom 9 in the vertical direction can be approximately represented as the overall offset of the boom 9, and the offset of one end of the boom 9 relative to the other end is F.
The formula I is as follows:
the number of the fine adjustment units 11 can be one or two, when the number of the fine adjustment units 11 is one, the fine adjustment units 11 are fixed at one end of the suspension rod 9, one or two ropes at the same end of the suspension rod 9 pass through the fine adjustment units 11 to be fixedly connected with the suspension rod 9, when the number of the fine adjustment units 11 is two, the fine adjustment units 11 are respectively fixed at two ends of the suspension rod 9, and one or two ropes pass through the fine adjustment units 11 at the same side thereof to be fixedly connected with the suspension rod 9.
Example 1
As shown in fig. 3, the fine adjustment unit 11 includes a set of pulley blocks, the set of pulley blocks includes at least one fixed pulley 11a and one movable pulley 11b, an expansion link 11c is disposed between the movable pulley 11b and the suspension rod 9, and two ends of the expansion link 11c are respectively fixedly connected to the shaft of the movable pulley 11b and the suspension rod 9. The end part of the first rope or the second rope passes through the fixed pulley 11a and the movable pulley 11b in sequence and then is fixedly connected to the suspension rod 9. The telescopic rod 11c is electrically connected with a microcomputer, and the microcomputer controls the telescopic rod 11c to extend or shorten, so that the end part of the suspension rod 9 is controlled to ascend or descend.
When the extension or contraction value of the telescopic rod 11c is X, the first or second rope passing through the fine adjustment unit 11 is shortened or extended by 2X.
When the fine adjustment unit 11 is one, the offset value of the boom 9 to be adjusted is 2H, and the amount of adjustment required by the fine adjustment unit 11 is equal to the offset value of the boom 9, that is:
further result in
The formula II is as follows:
wherein, X1-the fine adjustment unit 11 is a pulley block, and the number of the fine adjustment units 11 is the adjustment amount when one;
l1, L2-the distance between the two ends of the suspender 9 and the reference object 8;
l-distance of the reference object 8 from the centre point of the boom 9.
When there are two fine adjustment units 11 and adjustment is performed synchronously, the offset value that boom 9 needs to be adjusted is 2H, and the amount that each fine adjustment unit 11 needs to be adjusted is equal to half of the offset value of boom 9, that is:
further obtain
The formula III is as follows:
wherein, X2-the fine adjustment unit 11 is a pulley block, and the number of the fine adjustment units 11 is the adjustment amount when two;
l1, L2-the distance between the two ends of the suspender 9 and the reference object 8;
l is the distance of the reference object 8 from the center point of the boom 9.
Example 2
As shown in fig. 4, the fine adjustment unit 11 includes a second winding drum 11d, the second winding drum 11d is rotatably installed at the end of the boom 9, the end of the first rope or the second rope is wound on the second winding drum 11d, the second winding drum 11d is electrically connected with the microcomputer, the radius of the second winding drum 11d is R, the circumference of the second winding drum 11d is 2 pi R, and the length of the first rope or the second rope wound by Y turns of the second winding drum 11d is 2 pi RY.
When the fine adjustment unit 11 is one, the offset value of the boom 9 to be adjusted is 2H, and the amount of adjustment required by the fine adjustment unit 11 is equal to the offset value of the boom 9, that is:
further result in
The formula four is as follows:
wherein, Y1-the fine tuning unit 11 is a second winding drum 11d, and the number of the fine tuning units 11 is the adjustment amount when one;
l1, L2-the distance between the two ends of the suspender 9 and the reference object 8;
r is the radius of the second reel 11 d;
l-distance of the reference object 8 from the centre point of the boom 9.
When there are two fine adjustment units 11 and adjustment is performed synchronously, the offset value that boom 9 needs to be adjusted is 2H, and the amount that each fine adjustment unit 11 needs to be adjusted is equal to half of the offset value of boom 9, that is:
further result in
The formula is five:
y2, namely the fine adjustment unit 11 is a second winding drum 11d, and the number of the fine adjustment units 11 is the adjustment amount when the number is two;
l1, L2-the distance between the two ends of the suspender 9 and the reference object 8;
r is the radius of the second reel 11 d;
l is the distance of the reference object 8 from the center point of the boom 9.
According to the invention, through the design of the horizontal detection unit, the horizontal state of the suspender 9 can be monitored in real time, the unbalanced state of the suspender 9 can be found in time, and then the state of the suspender 9 can be corrected in time through the design of the fine adjustment unit 11, so that the suspender 9 is kept in the horizontal state. And then, can guarantee that the stage property of installing on the jib is in balanced state.
The invention has been described in an illustrative manner, and it is apparent that the specific implementation of the invention is not limited by the above-described manner, and that various insubstantial modifications of the inventive concept and solution, or direct application of the inventive concept and solution to other applications without modification, are within the scope of the invention. The protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (5)
1. An operation method of an adjustable balance suspender for a stage is characterized in that the adjustable balance suspender for the stage comprises a suspender, a microcomputer, a level detection unit, a fine adjustment unit and an alarm unit, wherein the suspender is pulled by ropes at two ends,
the operation method comprises the following steps:
the method comprises the following steps that firstly, a horizontal detection unit detects whether a suspender deviates or not and transmits a result to a microcomputer;
step two, the microcomputer analyzes the detection result, and if the deviation value is not greater than the threshold value one, the suspender is in a horizontal state; if the deviation value is larger than the first threshold and not larger than the second threshold, the fine adjustment unit adjusts the suspender to enable the suspender to recover the horizontal state; if the deviant is larger than the second threshold value, the alarm unit gives an alarm to the outside;
wherein the level detecting unit detecting process includes:
s1, a reference object is kept vertical to a horizontal plane;
s2, measuring distances L1 and L2 between two ends of the suspender and a reference object, and transmitting data to a microcomputer;
s3, the microcomputer converts the detection value into an offset value F;
wherein, the conversion method in S3 is as follows:
wherein, L1 and L2 are distances between two ends of the suspender and the respective reference objects;
l is the distance of the reference object from the center point of the boom.
2. A method of operating an adjustable balance boom for a stage according to claim 1, wherein the adjustment amount of the fine adjustment unit is:
wherein, X1-the fine adjustment unit is a pulley block, and the number of the fine adjustment units is the adjustment amount of one time;
l1, L2, the distance between the two ends of the suspender and the reference object respectively;
l is the distance of the reference object from the center point of the boom.
3. A method of operating an adjustable balance boom for a stage according to claim 1, wherein the adjustment amount of the fine adjustment unit is:
wherein, X2-the fine adjustment unit is a pulley block, and the number of the fine adjustment units is the adjustment amount of two;
l1 and L2 are distances from two ends of the suspender to the reference object respectively;
l is the distance of the reference object from the center point of the boom.
4. A method for operating an adjustable balance boom for stage according to claim 1, wherein the adjustment amount of the fine adjustment unit is:
wherein Y1-the fine adjustment unit is a second winding drum, and the number of the fine adjustment units is the adjustment amount when the number is one;
l1 and L2 are distances from two ends of the suspender to the reference object respectively;
r is the radius of the second winding drum;
l is the distance of the reference object from the center point of the boom.
5. A method of operating an adjustable balance boom for a stage according to claim 1, wherein the adjustment amount of the fine adjustment unit is:
wherein Y2 is a second winding drum, and the number of the fine adjustment units is the adjustment amount of two;
l1, L2, the distance between the two ends of the suspender and the reference object respectively;
r is the radius of the second winding drum;
l is the distance of the reference object from the center point of the boom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810172526.6A CN108382995B (en) | 2018-03-01 | 2018-03-01 | Operation method of adjustable balance suspender for stage |
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| CN201810172526.6A CN108382995B (en) | 2018-03-01 | 2018-03-01 | Operation method of adjustable balance suspender for stage |
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|---|---|
| CN108382995A (en) | 2018-08-10 |
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