KR20180083198A - Measuring Apparatus For Crane Girder, And Operating Method Thereof - Google Patents

Abstract

A crane girder real time measurement apparatus and a method for operating the same are disclosed. A real time measurement device for a crane girder according to an embodiment of the present invention is a real time measurement device 100 for measuring the deformation amount of a crane girder mounted on a crane equipped with a girder 10, A measurement wire 110 having both ends fixed to the both ends; A reflection plate 120 mounted at a center of the measurement wire 110; A distance measuring sensor mounted on the upper portion of the girder 10 and disposed at a position facing the reflector 120 and measuring the distance to the reflector 120 and transmitting the detected distance data to the controller 140 130); And a controller 140 for receiving the distance data from the distance measuring sensor 130 in real time and outputting the received distance data to the operator.
According to the present invention, it is possible to provide a real time measurement device for a crane girder which can accurately and easily measure the deformation amount of the crane girder.

Description

Technical Field [0001] The present invention relates to a crane girder real time measurement apparatus and a method for operating the same,

The present invention relates to a real-time measurement device for a crane girder and a method for operating the same. More particularly, the present invention relates to a real-time measurement device for a cradle girder which measures a downward deformation amount of a crane girder and is mounted on a crane equipped with a girder, .

Currently, many cranes or yards used in factories, outdoor tower cranes, house cranes, and Goliath cranes are used to transport heavy objects.

Cranes that have been used for a long time, along with the development of industrial technology, have been endowed with many aging and fatigue loads these days. In order to use these cranes safely, it is necessary to provide a device that makes it easier to determine the sagging phenomenon or fatigue stress of the crane and to recognize the worker in real time.

Cranes currently in use for this need are designed and constructed to ensure mechanical safety by safety factor calculation at the time of initial manufacture.

However, the cranes of the prior art described above only determine the allowable load and recognize and use only the weight measurement of the electric winch.

Therefore, in the case of the conventional crane device, only the allowable load is shown, and it does not have a function to indicate or warn the problems that occur in the shape and deformation stiffness of the crane girder. Accordingly, in the case of a crane of the prior art, there is a problem that a safety accident due to the shape deformation of the girder can not be prevented

The crane deformation measuring apparatus shown in Figs. 1 and 2 may also be used to solve the problems of the prior art.

Specifically, the crane girder strain gauging apparatus 100 includes a crane 200 installed at an upper portion thereof and having a girder 210 having an electric winch 260 and a hook 270 for raising and lowering a workpiece, A supporter 120 installed at a predetermined distance from the upper surface of the girder 210 at one side of the girder and an ultrasound measuring unit 130 as an embodiment of the distance measuring unit of the present invention installed at the end of the supporter 120 A display unit 140 for displaying a degree of deformation of the girder 210 measured by the ultrasonic measuring unit 130 and a display unit 140 for displaying the degree of deformation of the girder 210 measured by the ultrasonic measuring unit 130. The ultrasonic measuring unit 130, And an alarm generating unit 150 for receiving an alarm signal from the ultrasonic measuring unit 130 and outputting an alarm when the shape of the girder 210 measured by the ultrasonic measuring unit 130 exceeds the limit.

The ultrasonic measuring unit 130 may further include a plurality of reflecting members 139 installed on the upper surface of the girder 210. The reflection member 139 may be installed at a predetermined distance from the upper surface of the girder 210 or may be installed at every intersection of the girder 210 and the diameter centered on the ultrasonic wave measuring unit 130, Spacing.

However, the crane deformation measuring apparatus according to the related art has a problem that it is difficult to apply to a crane in which a large girder is installed, as shown in Fig.

In order to solve such a problem, as shown in Fig. 3, the large measuring equipment 30 is put in and measured by the worker 1. Fig. However, in this case too, there is a problem that additional equipment is required and additional workforce is required, and the operation of the crane must be stopped during the measurement operation.

Therefore, there is a need for a technique for a device for real-time measurement of a crane diagonal real-time which can solve the above-mentioned problems according to the related art.

Korean Patent Publication No. 10-2013-0084089 (published on July 24, 2013)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a real time measuring device for a crane girder which is mounted on a crane equipped with a girder to measure a downward deformation amount of the crane girder.

According to one aspect of the present invention, there is provided a real-time measurement device for a crane girder, which is mounted on a crane equipped with a girder and measures a deformation amount of the crane girder, A measuring wire fixedly mounted on both sides; A reflecting plate mounted on a center portion of the measuring wire; A distance measuring sensor mounted on the upper portion of the girder and disposed at a position opposite to the reflector for measuring a distance to the reflector and transmitting the detected distance data to the controller; And a controller for receiving the distance data from the distance measuring sensor in real time and outputting the received distance data to the operator.

In one embodiment of the present invention, a length changing portion capable of changing the length of the measuring wire may be provided at both ends of the measuring wire.

In this case, the length changing portion may include a rotating portion that is coupled to the one end of the binding portion and the one end of the fixing portion by a screwing method and changes a distance between the binding portion and the fixing portion by a rotating operation; A fixing part fixed to both ends of the girder and having one end engaged with the rotation part by a screwing method; And a binding part mounted on both ends of the measuring wire and having one end engaged with the rotating part by a screwing method.

In one embodiment of the present invention, the distance measuring sensor is mounted on the upper center of the girder and can behave in the same manner as the upward / downward changing behavior of the girder.

In one embodiment of the present invention, the control unit may further include an output device for visually outputting the distance data detected by the distance measuring sensor to the operator.

In this case, the control unit can output an alarm signal or an alarm to the operator using the output device.

In one embodiment of the present invention, the control unit may receive the distance data in real time from the distance measurement sensor, and when the variation amount of the distance data exceeds the preset value, or when the variation per unit time of the distance data is within the predetermined range If exceeded, it can output a warning signal to the operator.

When the amount of change in the distance data exceeds a predetermined value after receiving the distance data in real time from the distance measuring sensor or when the amount of change per unit time of the distance data exceeds the preset range, Can be stopped.

According to another aspect of the present invention, there is provided a method of operating a measurement device for a crane girder, the method comprising: a) a reflection plate mounted on a measurement wire using a distance measurement sensor, A distance measuring step of measuring a distance between the first electrode and the second electrode; b) a data processing step of receiving the distance data detected from the distance measuring sensor and detecting the amount of change per hour; And c) a data output step of outputting the data obtained from the data processing step to the operator.

In an embodiment of the present invention, the measurement device operating method may further comprise: d) when the amount of change in the distance data exceeds the preset value, or when the amount of change per hour of the distance data exceeds the preset range, And an alarm generating step of outputting the alarm to the operator.

As described above, according to the real-time measurement device for a crane girder according to the present invention, by providing the measurement wire, the reflection plate, the distance measurement sensor, and the control section having a specific structure, it is possible to accurately measure the crane- Device can be provided.

According to the apparatus for real time measurement of a crane girder according to the present invention, the reference of a crane girder is set by using a measuring wire mounted at both ends of the girder and a reflector mounted at the center of the measuring wire, It is possible to accurately detect the deformation amount of the downward deflection of the center portion of the crane girder.

Further, according to the real-time measurement device for a crane girder of the present invention, by providing a length changing portion capable of changing the length of the measuring wire at both ends of the measuring wire, it is possible to easily change the tension applied to the measuring wire, It is possible to accurately detect the deflection deformation amount of the lower portion of the crane girder.

In addition, according to the real-time measurement device for a crane girder of the present invention, the length of the measuring wire can be easily changed by providing the length changing portion including the rotating portion, the fixing portion and the binding portion having a specific structure, The size can be adjusted more finely.

Further, according to the real-time measurement device for a crane girder of the present invention, an output device for visually outputting the distance data detected by the distance measuring sensor is provided so that the detected distance data can be more easily provided to the operator.

According to the real time measurement device for a crane girder according to the present invention, after receiving distance data in real time from a distance measuring sensor, when the variation amount of the distance data exceeds the preset value, or when the variation per hour of the distance data is within the predetermined range In case of exceeding, it is possible to guarantee safety in crane operation by outputting a warning signal to the operator or by emergency stopping the operation of the crane.

According to the method for operating a real time measurement device for a crane girder according to the present invention, a crane girder real time measurement device capable of accurately and easily measuring the deformation amount of a crane girder by including a distance measurement step, a data processing step, It can provide a method of operation.

In addition, according to the method for operating a real-time measurement device for a crane girder according to the present invention, it is possible to omit the additional manpower input and equipment input, which were conventionally required for measuring the downward deflection amount of the crane girder, There is no need to stop the crane when measuring the deformation amount of the downward deflection of the crane girder. As a result, the crane operation efficiency can be remarkably improved.

1 is a perspective view showing a crane deformation measuring apparatus according to the prior art.
2 is a functional block diagram of the ultrasonic measuring unit shown in FIG.
3 is a schematic view showing a state in which a deformation amount of a downward deflection of a girder is measured with respect to a crane in which a large girder is installed according to the prior art.
4 is a schematic diagram showing a real time measurement device for a crane girder according to an embodiment of the present invention
5 is an enlarged view of a portion A in Fig.
6 is a front view showing both ends of a measuring wire according to an embodiment of the present invention.
7 is a flowchart illustrating a method of operating a measurement apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to the description, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical concept of the present invention.

Throughout this specification, when a member is "on " another member, this includes not only when the member is in contact with another member, but also when there is another member between the two members. Throughout this specification, when an element is referred to as "including" an element, it is understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

FIG. 4 is a schematic view showing a real time measurement device for a crane girder according to an embodiment of the present invention, and FIG. 5 is an enlarged view of a portion A in FIG. 6 is a front view showing both ends of a measuring wire according to an embodiment of the present invention.

Referring to these drawings, a real time measurement device 100 for a crane girder according to the present embodiment is a real time measurement device 100 for a cradder mounted on a crane equipped with a girder 10 for measuring a deformation amount of a crane girder A real-time measurement device for a crane girder which can accurately and easily measure the deformation amount of a crane girder by providing a measurement wire 110 having a specific structure, a reflection plate 120, a distance measurement sensor 130 and a control unit 140 .

Hereinafter, each constitution of the crane girder real time measurement apparatus 100 according to the present embodiment will be described in detail.

As shown in Fig. 4, the measuring wire 110 according to the present embodiment can be mounted on both ends of the girder 10 with both sides fixed.

The reflection plate 120 is preferably mounted at the center of the measurement wire 110.

Since the measurement wire 110 is fixed only at both ends of the girder 10, the position of the measurement wire 110 can be fixed at the initial position even if the center portion of the girder 10 is deformed downward. Therefore, the reflection plate 120 may be provided at the center of the measurement wire 110, and this can be adopted as a standard for measurement of the deformation amount of the girder 10. [

4 and 5, it is preferable that the distance measuring sensor 130 is mounted on the upper portion of the girder 10 and is disposed at a position opposite to the reflector 120.

The distance measuring sensor 130 according to the present embodiment can measure the distance from the reflector 120 and transmit the detected distance data to the controller 140. [

At this time, it is preferable that the distance measuring sensor 130 is mounted on the upper center of the girder 10 and behaves in the same manner as the upward / downward changing behavior of the girder 10.

In addition, the controller 140 may receive the distance data from the distance measuring sensor 130 in real time, and then output the received distance data to the operator.

The control unit 140 may further include an output device for visually outputting the distance data detected by the distance measuring sensor 130 to the operator. In this case, the control unit 140 may use an output device An alarm signal or alarm can be output to the operator.

If the amount of change in the distance data exceeds the predetermined value after the distance data is received from the distance measuring sensor 130 in real time or the amount of change per unit time of the distance data exceeds the predetermined range , It is possible to output a warning signal to the operator or to stop the operation of the crane.

As shown in FIG. 6, at both ends of the measuring wire 110, a length changing portion 111 capable of changing the length of the measuring wire 110 may be provided.

Specifically, the length changing portion 111 may be configured to include the rotating portion 112, the fixing portion 113, and the binding portion 114 having a specific structure.

The rotation section 112 is coupled to the one end of the coupling section 114 and the one end of the fixing section 113 by a screwing method and is rotated by the rotation operation to change the distance between the coupling section 114 and the fixing section 113 Can be changed.

The fixing portion 113 is fixed to both ends of the girder 10 and one end can be connected to the rotation portion 112 by a screw fastening method. As occasion demands, the fixing portion 113 may include an eye bolt structure, as shown in Fig.

The binding portion 114 is attached to both ends of the measuring wire 110 and one end can be bound to the rotating portion 112 by a screwing method.

As described above, according to the real-time measurement device for a crane girder according to the present invention, by providing the measurement wire, the reflection plate, the distance measurement sensor, and the control section having a specific structure, it is possible to accurately measure the crane- Device can be provided.

According to the apparatus for real time measurement of a crane girder according to the present invention, the reference of a crane girder is set by using a measuring wire mounted at both ends of the girder and a reflector mounted at the center of the measuring wire, It is possible to accurately detect the deformation amount of the downward deflection of the center portion of the crane girder.

Further, according to the real-time measurement device for a crane girder of the present invention, by providing a length changing portion capable of changing the length of the measuring wire at both ends of the measuring wire, it is possible to easily change the tension applied to the measuring wire, It is possible to accurately detect the deflection deformation amount of the lower portion of the crane girder.

In addition, according to the real-time measurement device for a crane girder of the present invention, the length of the measuring wire can be easily changed by providing the length changing portion including the rotating portion, the fixing portion and the binding portion having a specific structure, The size can be adjusted more finely.

Further, according to the real-time measurement device for a crane girder of the present invention, an output device for visually outputting the distance data detected by the distance measuring sensor is provided so that the detected distance data can be more easily provided to the operator.

According to the real time measurement device for a crane girder according to the present invention, after receiving distance data in real time from a distance measuring sensor, when the variation amount of the distance data exceeds the preset value, or when the variation per hour of the distance data is within the predetermined range In case of exceeding, it is possible to guarantee safety in crane operation by outputting a warning signal to the operator or by emergency stopping the operation of the crane.

7 is a flowchart illustrating a method of operating a measurement apparatus according to an embodiment of the present invention.

Referring to FIG. 7 together with FIG. 5, a method (S100) of operating a crane girder real-time measurement apparatus according to the present embodiment includes a distance measurement step S110, a data processing step S120, and a data output step S130 . ≪ / RTI >

Specifically, the distance measuring step (S110) is a step of measuring a distance to a reflecting plate mounted on the measuring wire using a distance measuring sensor.

The subsequent data processing step (S120) is a step of receiving the distance data detected from the distance measuring sensor and detecting the amount of change per hour.

The data output step (S130) is a step of outputting the data obtained from the data processing step to the operator.

In some cases, an alarm generating step (S140) for outputting an alarm signal or an alarm to the operator when the variation amount of the distance data exceeds the preset value or when the variation per unit time of the distance data exceeds the preset range, .

Therefore, according to the measuring apparatus operating method S100 according to the present embodiment, by including the distance measuring step S110, the data processing step S120, and the data outputting step S130 of the specific configuration, the deformation amount of the crane girder can be accurately And can provide a method of operating a real-time measurement device of a crane girder which can be easily measured. In addition, it is possible to omit the additional manpower input and equipment input, which was conventionally required to measure the downward deflection amount of the crane girder, and it is not necessary for the operator to put the crane at the elevated position of the crane. So that the efficiency of crane operation can be remarkably improved as a result.

In the foregoing detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

That is, the present invention is not limited to the above-described specific embodiment and description, and various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. And such variations are within the scope of protection of the present invention.

1: Operator
10: girder
20: Weight
30: Measuring equipment
100: Crane girder real time measuring device
110: measuring wire
111:
112:
113:
114:
120: reflector
130: Distance measuring sensor
140:
S100: How to operate the measuring device
S110: Distance measurement step
S120: Data processing step
S130: Data output step
S140: Alarm generation step

Claims (10)

A real time measuring apparatus (100) for a cradder mounted on a crane equipped with a girder (10) for measuring a deformation amount of a crane girder,
A measuring wire 110 to which both ends of the girder 10 are fixedly mounted;
A reflection plate 120 mounted at a center of the measurement wire 110;
A distance measuring sensor mounted on the upper portion of the girder 10 and disposed at a position facing the reflector 120 and measuring the distance to the reflector 120 and transmitting the detected distance data to the controller 140 130); And
A controller 140 for receiving the distance data from the distance measuring sensor 130 in real time and outputting the received distance data to the operator;
Wherein the crane girder real time measuring device comprises:
The method according to claim 1,
Wherein a length changing portion (111) capable of changing the length of the measuring wire (110) is provided at both ends of the measuring wire (110).
3. The method of claim 2,
The length changing unit 111,
A rotary part 112 which is connected to one end of the binding part 114 and one end of the fixing part 113 by a screwing method and changes the distance between the binding part 114 and the fixing part 113 by a rotating operation );
A fixing part 113 fixed to both ends of the girder 10 and having one end engaged with the rotation part 112 by a screwing method; And
A binding portion 114 attached to both ends of the measuring wire 110 and having one end engaged with the rotation portion 112 by a screwing method;
Wherein the crane girder real time measuring device comprises:
The method according to claim 1,
Wherein the distance measuring sensor (130) is mounted on a central upper portion of the girder (10) and behaves in the same manner as the upward / downward changing behavior of the girder (10).
The method according to claim 1,
Wherein the control unit (140) further comprises an output device for visually outputting the distance data detected by the distance measuring sensor (130) to the operator.
6. The method of claim 5,
Wherein the control unit (140) outputs an alarm signal or an alarm to the operator using an output device.
The method according to claim 1,
If the variation amount of the distance data exceeds the preset value after receiving the distance data in real time from the distance measurement sensor 130 or when the variation amount per unit time of the distance data exceeds the preset range , And outputs a warning signal to the operator of the crane girder.
The method according to claim 1,
If the variation amount of the distance data exceeds the preset value after receiving the distance data in real time from the distance measurement sensor 130 or when the variation amount per unit time of the distance data exceeds the preset range And stopping the operation of the crane.
A method (S100) for operating a real time measurement device for a crane girder according to any one of claims 1 to 8,
a) a distance measuring step (S110) of measuring a distance to a reflecting plate mounted on the measuring wire using a distance measuring sensor;
b) a data processing step (S120) of receiving the distance data detected from the distance measuring sensor and detecting the amount of change per hour; And
c) a data output step (S130) of outputting the data obtained from the data processing step to the operator;
And a measuring device for measuring the temperature of the measuring device.
10. The method of claim 9,
The measuring apparatus operating method (SlOO)
d) an alarm generating step (S140) of outputting an alarm signal or an alarm to the operator when the variation amount of the distance data exceeds the preset value or when the variation per hour of the distance data exceeds the preset range;
Further comprising the steps of:

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