JP5722009B2 - Hoisting device operating state measuring device and hoisting device - Google Patents

Description

  The present invention relates to an operating state measuring device for a hoisting device that measures an operating state of a hoisting device such as an electric chain block or an electric hoist, and a hoisting device including the operating state measuring device.

  In hoisting machine devices such as electric chain blocks and electric hoists, each component such as a load chain, a wire rope, a sprocket, and a drive gear is designed with a predetermined life expectancy. Therefore, in order to know the replacement time and repair time of each component, a load meter for detecting the load of the suspended load is installed as shown in Patent Documents 1 and 2, or the load of the suspended load is detected from the motor current, etc. There has been proposed a work status management device that measures (estimates) a work status (driving operation status) from a load detection signal, an operation control signal, and the like.

  The working status detection device of the claim shown in Patent Document 1 includes a load meter that detects the weight of a suspended load on a crane, and an integrator that records the number of lifting for each weight of the suspended load based on a load detection signal from the load meter. The work state of the crane can be grasped from the number of times of lifting for each weight of the suspended load collected by the integrator, and the fatigue level of various crane components (components) is determined.

  In addition, the crane operation status management device disclosed in Patent Document 2 determines which of a plurality of preset load categories is applicable based on the suspended load information in the suspended load portion provided in the crane. The operation time of the suspended load part is integrated for each determined load category, and the obtained number of operations and operation time are stored for each load category.

JP 2004-67379 A JP 2010-180001 A

The crane work status detection device shown in Patent Document 1 can be easily installed retrofit even with an existing crane because the load meter is attached to the hook portion that suspends the load. control unit body must be incorporated from the beginning to the crane body, when mounting the working condition detecting device to an existing crane, when providing the present working status detection device in other words retrofitting, a problem that requires a great effort There is. The detected data is the weight of the suspended load measured with a load meter and the number of times of lifting (fatigue degree) for each weight, and the winding energization time (the grade of the mechanical device) is not taken into consideration.

  In addition, the crane operating state management device shown in Patent Document 2 needs to be incorporated into the system from the beginning, and is difficult to be retrofitted to an existing crane.

  The present invention has been made in view of the above-mentioned points, and can be easily attached to the existing hoisting device such as an electric chain block or an electric hoist without retrofitting, and the hoisting device can be operated. It is an object of the present invention to provide an operation state measuring device for a hoisting device that can accurately measure an operation state such as an operation history, and a hoisting device including the operation state measuring device.

In order to solve the above problems, the present invention performs an arithmetic process on a load meter, an acceleration sensor for detecting the acceleration of the load suspending device, a load detection signal from the load meter, and an acceleration detection signal from the acceleration sensor . determine the operating status of the manufacturing machine, comprising: a data processing unit for memorize a該判different results, a power supply unit, wherein the load meter, the acceleration sensor, the data processing unit, and integrally unitized said power supply unit and the operation state measuring section Te, the operation state measuring unit is attached to a predetermined position of the hoisting apparatus, configured to measure the load of the load of a load meter said operating state measuring unit hung on the load hanger The data processing unit performs arithmetic processing on the acceleration detection signal, determines presence / absence of vibration and vibration value, determines whether the vibration is present and vibration value, and is operating or stopped. The load detection signal is calculated and processed Dividing the load level of the heavy detection signal into a plurality number of times the operation to load each level that each section, to determine the operating time, in the operation state measuring apparatus of the hoisting device and to store the該判specific results.

Further, the present invention calculates and processes a load meter, an acceleration sensor for detecting the acceleration of the load suspension, a load detection signal from the load meter, and an acceleration detection signal from the acceleration sensor. A data processing unit that discriminates an operation situation and stores the discrimination result, and a power supply unit, and the load cell, the acceleration sensor, the data processing unit, and the power supply unit are integrated into an operation unit and an operation situation measurement unit The operation state measurement unit is mounted at a predetermined position of the hoisting device, and the load of the load suspended from the load hanger is measured by a load meter of the operation state measurement unit. A three-axis acceleration sensor, wherein the data processing unit performs arithmetic processing on the load detection signal and the acceleration detection signal, determines the number of operations for each load level, operation time, presence / absence of abnormal vibration, oblique pulling of the load, The discrimination result The operation state measuring apparatus of the hoisting device and to store certain.

Further, the present invention provides the above-described hoisting device operating state measuring device , wherein the upper hoisting member is provided at the upper end of the operating state measuring unit, the load hanger is provided at the lower end, and the upper hoisting member is attached to the hoisting device. It is characterized by having a configuration that can be attached to the load hanging tool with a single touch .

Further, the present invention is the above-described hoisting device operation state measuring device, wherein the data processing unit performs arithmetic processing on the acceleration detection signal, calculates a speed, and performs a hoisting operation or a lowering operation from the calculated speed. The speed level during the hoisting operation and the lowering operation is divided into a plurality of times, and the number of operations and the operation time are determined for each of the divided load levels and for each of the divided speed levels. , characterized in that it remembers the該判another result.

Further, the present invention provides a hoisting apparatus comprising a hoisting machine and an operating condition measuring device for measuring an operating condition of the hoisting machine, wherein any one of the operation condition measuring apparatuses is used as the operating condition measuring apparatus. It is used .

In the present invention, a load meter, an acceleration sensor, a data processing unit, and a power supply unit are integrated into an operation state measurement unit, and the operation state measurement unit is attached to a predetermined position of the hoisting device. than configured for measuring the load of the load that suspended load hanging jig at a load meter, simply by mounting the operating status measurement section in a predetermined position of the winding on the device, to determine the presence or absence of vibration and the vibration values , It is determined whether it is operating or stopped from the presence or absence of vibration and the vibration value. If it is operating, the load detection signal is processed and the load detection signal is divided into a plurality of load levels. Since the number of operations and the operation time are determined and the determination result is stored, the operation state of the number of operations and the operation time can be measured for each load level, and an accurate operation history can be obtained.

In addition, the present invention integrates a load meter, a three-axis acceleration sensor, a data processing unit, and a power supply unit into an operation state measurement unit, and simply attaches it to a predetermined position of the hoisting device, so that the number of operations per load level The operation time, presence / absence of abnormal vibration, oblique pulling of the load are discriminated, and the discrimination result is stored, so that the number of operations for each load level and the operation status of the operation time can be measured, and the accurate operation history for each load level Can be obtained.

In addition, the present invention has a configuration in which an upper suspension member is provided at the upper end portion of the operation state measurement unit, a load suspension body is provided at the lower end portion, and the upper suspension member can be attached to the load suspension of the hoisting device with one touch. In particular, the operation state measuring unit can be mounted on the load lifting tool of the existing hoisting device with a single touch, and the operating state can be measured without any change to the hoisting device.

Further, according to the present invention, the data processing unit performs an arithmetic processing on the acceleration detection signal, calculates a speed, determines whether the winding operation is being performed or the rolling operation is performed based on the calculated speed, The speed level during the unwinding operation is divided into a plurality, the number of operations and the operation time are determined for each divided load level and for each classified speed level, and the determination result is stored. The number of operations and the operation status of the operation time can be measured for each speed level, and more accurate history information can be obtained.

  In addition, since the present invention uses any of the above-mentioned operation state measuring devices as the operation state measuring device in the hoisting device, the operation state as described above can be measured by operating the above hoisting device, It is possible to provide a hoisting device that can easily and accurately predict the replacement time and repair time of components.

It is a figure which shows the structural example of the electric chain block which is a winding machine which attached the operation condition measuring apparatus which concerns on this invention. It is a figure which shows the structural example of the operating condition measuring apparatus of the winding machine which concerns on this invention. It is a figure which shows the function structural example of the operating condition measuring apparatus of the winding machine which concerns on this invention. It is a whole control flow figure of the operating condition measuring device of the hoisting machine concerning the present invention. It is a measurement part perpendicular | vertical judgment flow figure of the operating condition measuring apparatus of the winding machine which concerns on this invention. It is a load judgment flowchart of the operating condition measuring device of the hoist according to the present invention. It is a driving | running operation condition detection process flowchart of the operating condition measuring apparatus of the winding machine which concerns on this invention. It is a driving | running operation condition integration process flowchart of the operating condition measuring apparatus of the winding machine which concerns on this invention. It is a driving | operation abnormality detection process flowchart of the operating condition measuring apparatus of the winding machine which concerns on this invention.

  Hereinafter, embodiments of the present invention will be described in detail. In this embodiment, the electric chain block is described as an example of the hoisting device. However, the operation state measuring device according to the present invention is not limited to the electric chain block and can be applied to hoisting devices such as an electric hoist. FIG. 1 is a diagram showing a configuration example of an electric chain block (an example of a hoisting device) to which an operation state measuring device according to the present invention is attached. The electric chain block 1 includes a traveling machine 2 and a hoisting machine 3. The traveling machine 2 includes a traveling motor 4, a drive gear mechanism (reduction gear) 4-1, a control device 5, a traveling wheel 6, and the like. When the traveling motor 4 is activated, the forward rotation force or the reverse rotation force is reduced. 4-1 is transmitted to the traveling wheel 6, and the traveling machine 2 travels forward or backward along the traveling rail 7 by forward rotation or reverse rotation of the traveling wheel 6.

  The hoisting machine 3 is connected to the lower side of the traveling machine 2 via a connecting member 8, and travels forward or backward as the traveling machine 2 moves forward or backward. The hoisting machine 3 includes a hoisting motor 10, a drive gear mechanism (reduction gear) 11, a sprocket (not shown), and the like, and when the hoisting motor 10 is started, its forward rotation force (winding force) or reverse rotation The rotational force (lowering force) is transmitted to the sprocket (load sheave: not shown) via the drive gear mechanism 11, and the hoisting machine 3 hoists or lowers the load chain 13 by forward or reverse rotation of the sprocket. (Rewind). A hook 14 is attached to the lower end of the load chain 13 as a load suspending tool, and an operation state measuring unit 20 of the operation state measuring device according to the present invention is attached (suspended) to the hook 14 via an upper suspension member 21. ing.

FIG. 2 is a diagram illustrating an example of the internal configuration of the operation state measurement unit 20. As shown in the drawing, an upper end portion of a strain body 24 of the load cell 22 is attached (connected) to a lower end of the upper suspension member 21 via a suspension member 23, and a lower portion of the strain body 24 is connected to a lower portion. A load hanging hook 26 as a load hanging body is attached through a hanging member 25. The upper suspension member 21 is provided with a 3D (3-axis) acceleration sensor 27, a data processing unit 28 including a microcomputer, and a power supply unit 29 for supplying power to each unit. The upper suspension member 21, the load cell 22, the suspension member 23, and the lower suspension member 25 are integrated and unitized. A strain gauge (not shown) is provided at a predetermined position of the strain generating body 24 of the load cell 22 (a portion that is greatly bent by a load applied to the load hanging hook 26), and the load hanging is determined from a change in the resistance value of the strain gauge. The weight of the load applied to the lower hook 26 can be detected. The 3D acceleration sensor 27 detects the acceleration of the upper suspension member 21.

  FIG. 3 is a diagram illustrating a functional configuration example of the operation state measurement unit 20. The operation state measurement unit 20 includes a data processing unit 28 and a display 30 that are constituted by a microcomputer. The data processing unit 28 includes a load calculating unit 28-1, a driving operation state detection (judgment) unit 28-2, a driving operation abnormality detection unit 28-3, a driving operation state integration unit 28-4, a display unit 28-5, and a storage. Means 28-6 and USB communication means 28-7 are provided. Various display data are output from the display means 28-5 to the display 30 to display the display data, and data can be transmitted and received between the personal computer 31 and the external memory via the USB communication means 28-7. It has become.

  The load calculation means 28-1 receives the load data signal detected by the load cell (load meter) 22, classifies (classifies) the magnitude of the load applied to the load hanging hook 26 into a plurality of levels, and generates a “load class” signal S1. Are output to the driving operation abnormality detecting unit 28-3 and the driving operation state integrating unit 28-4, respectively.

The driving operation state detection (judgment) means 28-2 detects the following “in motion” signal S2, “acceleration level” signal S3, and “posture angle (verticality) signal S4” from the acceleration data from the 3D acceleration sensor 27, Output to the driving operation abnormality detecting means 28-3 and the driving operation status integrating means 28-4, respectively.
"In operation" signal S2: When the presence or absence of vibration of the load chain 13 generated by operating the electric chain block (winding device) 1 to wind up and down is detected from the acceleration data, and there is vibration of a predetermined vibration value A signal indicating “in operation” and an “acceleration level” signal S3: a signal for classifying the magnitude of the vertical acceleration of the load chain 13 of the electric chain block (winding device) 1 from the acceleration data to obtain an “acceleration level” “Attitude angle (verticality) signal S4: From the acceleration data, the inclination (posture) angle of the load chain 13 of the electric chain block with respect to the gravity (vertical) direction (= inclination (posture) angle of the motion state measuring unit 20) (vertical) Signal)

The driving operation abnormality detection means 28-3 includes a “load class” signal S1 from the load calculation means 28-1, an “in operation” signal S2 from the driving operation status detection (judgment) means 28-2, and an “acceleration level” signal. S3, “From the attitude angle (verticality) signal S4,
・ Existence of abnormal vibration (acceleration) (existence of vibration exceeding the specified vibration value)
The presence or absence of overload and the presence or absence of diagonal pulling are detected and output to the storage means 28-6 as abnormal signal data, respectively, and stored.

  The driving operation status integration means 28-4 includes a “load class” signal S1 from the load calculation means 28-1, an “in operation” signal S2 from the driving operation status detection (judgment) means 28-2, and an “acceleration level” signal. S3, “Combination time and number of times of attitude angle (verticality) signal S4 are counted / integrated, and the counted / integrated data are output to the storage means 28-6 and stored therein.

Next, the following method 1 and method 2 as a mechanism of the driving | operation operation | movement discrimination | determination means of this invention are demonstrated.
[Method 1]
(1) winding the load chain 13 of the electric chain block 1, or in winding lowering operation, the hook 14 also vibrates in together with the load chain 13. In particular, in a load chain 13 composed of a roller chain or a link chain, the load chain 13 vibrates up and down (pulsates) as a driving polygonal sprocket (load sheave) rotates. The presence / absence of this vibration (presence / absence of vibration of a predetermined vibration value) is detected from the output of the 3D acceleration sensor 27 to determine whether the electric chain block 1 is “operating” or “stopped”.

(2) The measured loads measured by the load cell 22 are classified into a plurality of levels (for example, five levels: “no load”, “light load”, “medium load”, “heavy load”, “super heavy load”).
(3) The “in operation” time of (1) is counted and integrated for each section of (2).
(4) The above integration results are stored in the storage means 28-6 as follows.
・ “No load”: 5 hours 40 minutes ・ “Light load”: 3 hours 20 minutes ・ “Medium load”: 2 hours 40 minutes ・ “Heavy load”: 1 hour 0 minutes ・ “Ultra heavy load”: 0 hours 20 minutes “Number of activations”: 390 times It is preferable that the storage in the storage unit 28-6 has a built-in calendar function and is stored as an operation time log at each activation.

[Method 2]
(1) The speed of the hook 14 attached to the load chain 13 is calculated using the acceleration measured by the 3D acceleration sensor 27 (the acceleration is integrated to calculate the speed), and the calculated speed is calculated. To “During the hoisting operation”, “Under the hoisting operation”, and “Stopping”. Subsequent subdivision of “winding operation” and “winding operation”, “high-speed winding operation”, “high-speed winding operation”, “low-speed winding operation”, “low-speed winding operation” it is preferable to determine.

(2) The measured loads measured by the load cell 22 are classified into a plurality of levels (for example, five levels: “no load”, “light load”, “medium load”, “heavy load”, “super heavy load”).
(3) The “in operation” times of (1) above are counted and integrated for each category of (2) above.
(4) The above integration results are stored in the storage means 28-6 as follows.
Winding high speed Winding low speed Winding high speed Winding low speed ・ "No load": 1 hour 40 minutes 1 hour 10 minutes 1 hour 40 minutes 1 hour 10 minutes ・ "Light load": 1 hour 0 minutes 0 hours 40 minutes 1 hour 0 minutes 0 hours 40 minutes ・ “Medium load”: 0 hours 50 minutes 0 hours 30 minutes 0 hours 50 minutes 0 hours 30 minutes ・ “Heavy load”: 0 hours 20 minutes 0 hours 10 minutes 0 hours 20 minutes 0 hours 10 minutes -"Super heavy load": 0 hours 6 minutes 0 hours 4 minutes 0 hours 6 minutes 0 hours 4 minutes-"Number of winding start-ups": 180 times-"Number of winding-down start-up times": 210 times Note that the storage means 28-6 It is preferable to store a calendar function and store it as an operation time log every time it is activated.

  The operation of the operation state measuring apparatus according to the present invention will be described with reference to the processing flowcharts of FIGS. FIG. 4 is a diagram showing an overall control processing flow of the operation state measuring apparatus. First, in step ST1, the operation time log is read and set in the entire operation time matrix. Subsequently, in step ST2, the activation frequency log is read and set in the overall activation frequency matrix. Subsequently, in step ST3, the operation abnormality log is read and set in the entire operation abnormality matrix. Subsequently, in step ST4, the current measurement operation time integration result matrix is initialized. Subsequently, in step ST5, the current measurement activation count integration result matrix is initialized. Subsequently, in step ST6, the current measurement operation abnormality matrix is initialized.

Subsequently, in step ST7, it is determined whether or not the operation status measurement is continued. If yes (Y), in step ST8, the operation status measurement device vertical determination, that is, the operation status measurement unit 20 is determined to be vertical. In step ST10, it is determined whether the operation state measurement unit 20 is vertical. If YES in step ST10, load determination processing is performed in step ST10, operation state detection processing in step ST11, operation state integration processing in step ST12, and step ST13. Driving operation abnormality detection processing, driving operation status display processing is performed in step ST14. If the operation state measurement unit 20 is not vertical (N) in step ST9, a warning that the operation state measurement unit 20 is not in the vertical state is issued in subsequent step ST15. Also, if no (N), not measured continuously in the step ST7, and update the entire operating time matrix in the subsequent step ST16, and stored, and updated throughout the start number matrix in step ST17, and save the entire operation in step ST18 Update to abnormality matrix, save, and end measurement.

  FIG. 5 is a diagram showing an operation status measuring apparatus vertical determination processing flow in step ST8 (see FIG. 4). First, in step ST21, the operation state measuring device, that is, the operation state measuring unit 20, calculates an angle with the vertical direction. This can be measured by the measurement principle of the 3D acceleration sensor 27. Subsequently, in step ST22, it is determined whether the measured angle is 10 degrees or less. If yes (Y), the state (posture) of the operation state measuring unit 20 is vertical in step ST23, and if no (N). In step ST24, it is assumed that the state (posture) of the operation state measurement unit 20 is non-vertical. In addition, it is preferable that the operation state measurement unit 20 identifies whether the operation state measurement unit 20 is lying down or swinging by a slinging operation using a 3D acceleration sensor.

  FIG. 6 is a diagram showing a load determination processing flow in step ST10 (see FIG. 4). First, in step ST31, it is determined whether or not the measured load value exceeds a predetermined reference value 1. If no (N), no load is determined in step ST32. If yes (Y), the process proceeds to step ST33. In step ST33, it is determined whether or not the measured load value exceeds a predetermined reference value 2. If no (N), the load is light in step ST34, and if yes (Y), the process proceeds to step ST35. In step ST35, it is determined whether or not the measured load value exceeds a predetermined reference value 3. If no (N), the medium load is determined in step ST36, and if yes (Y), the process proceeds to step ST37. In step ST37, it is determined whether or not the measured load value exceeds a predetermined reference value 4. If no (N), a heavy load is determined in step ST38, and if yes (Y), a very heavy load is determined in step ST39. .

  FIG. 7 is a diagram showing a driving operation status detection process flow of step ST11 (see FIG. 4). First, in step ST41, it is determined whether the acceleration value in the vertical direction is equivalent to the acceleration value at rest. If yes (Y), the process proceeds to step ST52 to be described later. It is determined whether the value exceeds the abnormal level. If yes (Y), abnormal vibration is determined in step ST43, and if no (N), the acceleration value is integrated in step ST44 to calculate the speed. Subsequently, in step ST45, it is determined whether the speed direction is the same as the gravitational acceleration direction. If yes (Y), the process proceeds to step ST49 described later. If no (N), the speed value is a high speed value in step ST46. It is judged whether it is equivalent level. If yes (Y), processing during high-speed hoisting operation is performed in step ST47, and if no (N), processing during low-speed hoisting operation is performed.

  In step ST49, it is determined whether or not the speed value is equal to the high speed value. If yes (Y), the process during the high speed winding operation is performed in step ST50. If no (N), the low speed is determined in step ST51. Performs processing during the unwinding operation. In step ST52, it is determined whether or not the vehicle has stopped from starting. If yes (Y), one operation is terminated in the following step ST53, and if no (N), the vehicle is stopped in the following step ST54.

  FIG. 8 is a diagram showing a driving operation state integration process flow of step ST12 (see FIG. 4). First, in step ST61, the load determination result in step ST10 (see FIG. 4) and the operation status detection result in step ST11 (see FIG. 4) are collated to determine the target item of the operation time integration result matrix. Subsequently, in step ST62, one cycle time is added to the target item of the operation time integration result matrix, and in step ST63, it is determined whether one operation has been completed. If yes (Y), the target of the activation number matrix is determined in step ST64. The item is added once and the process ends. If no (N), the process ends.

  FIG. 9 is a diagram showing a driving operation abnormality detection processing flow in step ST13 (see FIG. 4). First, in step ST71, it is determined whether the vibration is abnormal. If the answer is yes (Y), the abnormal vibration item of the operation abnormality matrix is added once in step ST72, and the process proceeds to step ST73. Also in the case of No (N) in Step ST71, the process proceeds to Step ST73. In step ST73, it is determined whether the load is overloaded. If yes (Y), the abnormal vibration item of the operation abnormality matrix is added once in step ST74, and the process is terminated. If no (N) in step ST73, the process is also terminated.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. For example, although the hoisting machine 3 travels forward and backward along the traveling rail 7 in the above embodiment, the hoisting machine 3 further includes a traverse rail, and the hoisting machine 3 travels forward along the traverse rail. The hoisting machine 3 may be capable of moving forward and backward along the traveling rail 7 together with the traversing rail.

  Moreover, in the said embodiment, although the operation condition measurement part 20 showed the example of a structure which hung on the hook 14 via the upper suspension member 21, the upper suspension member 21 of the operation condition measurement part 20 is attached to the hook 14, for example. It is good also as a structure attached directly to the lower end of a load chain without interposing. Further, the load cell used as a load cell is not limited to the one shown in FIG. 2 and may be any load cell or load cell as long as it can measure a suspended load.

  Moreover, although the load-hanging hook is provided at the lower end of the operation state measuring unit 20, the load-hanging member is not limited to the hook and may be any configuration. In addition, the movement during winding and unwinding is detected by using a 3D acceleration sensor. However, in order to increase the accuracy, a control signal for the hoisting apparatus may be input via communication means. .

  In the present invention, a load meter, an acceleration sensor, a data processing unit, and a power supply unit are integrated into an operation state measurement unit, and the operation state measurement unit is attached to a predetermined position of the hoisting device. Since it is configured to measure the load of the load suspended from the load hanging tool with a load meter, it is necessary to install the operation status measurement unit as an integrated unit at a predetermined position of the hoisting device. It can be used as an operation state measuring device that can be mounted on a load hanger such as a hook of the hoisting device and can measure the operation state.

DESCRIPTION OF SYMBOLS 1 Electric chain block 2 Traveling machine 3 Hoisting machine 4 Traveling motor 4-1 Drive gear mechanism (reduction gear)
DESCRIPTION OF SYMBOLS 5 Control apparatus 6 Traveling wheel 7 Traveling rail 8 Connection member 10 Hoisting motor 11 Drive gear mechanism 13 Load chain 14 Hook 20 Operation condition measurement part 21 Upper suspension member 22 Load cell 23 Suspension member 24 Strain body 25 Lower suspension member 26 Load Hanging hook 27 3D (3-axis) acceleration sensor 28 Data processing unit 29 Power supply unit 30 Display unit 31 Personal computer

Claims (5)

A load cell,
An acceleration sensor for detecting the acceleration of the load suspension;
Load detection signal from the load cell, and then processing the acceleration detection signal from the acceleration sensor, to determine the operating status of the hoisting machine, and a data processing unit that memorize the該判different results, and a power supply unit, With
The load cell, the acceleration sensor, the data processing unit, and the power supply unit are integrated into an operation state measurement unit,
Mounting the operation status measurement section in a predetermined position of the winding on the device, and configured to measure the load of the load that hung on the load hanger with a load meter of the operation state measuring unit,
The data processing unit performs arithmetic processing on the acceleration detection signal, determines presence / absence of vibration and vibration value, determines whether it is operating / stopped from the presence / absence and vibration value of the vibration, A hoisting apparatus characterized in that a detection signal is processed, the load level of the load detection signal is divided into a plurality of loads, the number of operations and the operation time are determined for each divided load level, and the determination results are stored. Operating condition measuring device. A load cell,
An acceleration sensor for detecting the acceleration of the load suspension;
A load detection signal from the load cell and an acceleration detection signal from the acceleration sensor are processed to determine each operating state of the hoist, and a data processing unit for storing the determination result, and a power supply unit, Prepared,
The load cell, the acceleration sensor, the data processing unit, and the power supply unit are integrated into an operation state measurement unit,
The operation state measurement unit is mounted at a predetermined position of the hoisting device, and configured to measure the load of the load suspended on the load hanging tool with a load meter of the operation state measurement unit,
The acceleration sensor is a triaxial acceleration sensor,
The data processing unit performs arithmetic processing on the load detection signal and the acceleration detection signal, determines the number of operations for each load level, operation time, presence / absence of abnormal vibration, oblique pulling of the load, and stores the determination result An apparatus for measuring the operating condition of a hoisting device. In the operating condition measuring device of the hoisting device according to claim 1 or 2 ,
An upper suspension member is provided at the upper end of the operation state measuring unit, a load suspension is provided at the lower end, and the upper suspension member can be attached to the load suspension of the hoisting device with one touch. Equipment for measuring the operating status of the hoisting device. In the operating condition measuring device of the hoisting device according to claim 1 or 2 ,
The data processing unit performs arithmetic processing on the acceleration detection signal, calculates a speed, determines whether the hoisting operation or the lowering operation is being performed from the calculated speed, and performs the hoisting operation and the lowering operation. The speed level of the
The piecewise the load per level, and said section and speed level number of operations per the operation time to determine the operating status measuring device hoist apparatus characterized in that it memorize the該判specific results. In a hoisting apparatus comprising a hoisting machine, and an operating condition measuring device for measuring the operating condition of the hoisting machine,
A hoisting apparatus using the operating condition measuring apparatus according to any one of claims 1 to 4 as the operating condition measuring apparatus.

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