CN110823164A - Device and method for detecting perpendicularity of standard section of tower crane - Google Patents
Device and method for detecting perpendicularity of standard section of tower crane Download PDFInfo
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- CN110823164A CN110823164A CN201911269136.1A CN201911269136A CN110823164A CN 110823164 A CN110823164 A CN 110823164A CN 201911269136 A CN201911269136 A CN 201911269136A CN 110823164 A CN110823164 A CN 110823164A
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- tower crane
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a device and a method for detecting the verticality of a standard section of a tower crane, wherein the device is arranged on a tower body of the tower crane, the tower body comprises the standard section consisting of a plurality of steel beams, the standard sections are connected through bolts, the standard section comprises a shell, and a tension sensor, a power supply module, a main control module and a wireless module which are arranged in the shell; the strain gauge is connected with the main control module, and the main control module is connected with background equipment through the wireless module. The tower crane inclination monitoring device is simple in structure and convenient to install, can monitor the tower crane inclination in 24 hours, and improves the safety performance of the tower crane.
Description
Technical Field
The invention relates to the field of tower crane equipment, in particular to a device and a method for detecting the perpendicularity of a standard knot of a tower crane.
Background
The tower crane is high in use frequency in the construction industry, mainly comprises a vertical tower body, a horizontal suspension arm and a horizontal wall, is high in height and comprises a plurality of standard joints which are sequentially connected through a screw rod, and is long, the suspension arm is much longer than a balance arm, and the suspension arm bears large pressure when used for transporting building materials. The safety accidents caused by the collapse of the tower crane increase year by year, and the main reasons are as follows: 1. the tower body of the tower crane deforms due to the fact that the hoisting weight exceeds the standard and the operation is poor; 2. the screw for fixing the standard knot is loosened, the connection performance between the standard knots is weakened, and then the larger shaking is generated in the process of hanging objects, so that the stress points of the standard knot are concentrated, and the stress points exceed the maximum stress value after the pressure of the contact point is increased, so that the standard knot is seriously deformed, and further the standard knot collapses; 3. in the tower crane use, maintainer can't realize effectual real-time supervision, lacks the ability of actually knowing the present running state of tower crane, relies on regularly to patrol and examine or regularly maintain and hardly satisfies the tower crane safety protection requirement of some high strength operations, and the maintainer of further specialty even and the great cost of equipment cost of patrolling and examining are higher, lead to the cost increase of building enterprise. In conclusion, the device which is more convenient to install and can effectively monitor the operation of the tower crane in real time is particularly necessary.
Disclosure of Invention
The invention aims to provide a device for detecting the perpendicularity of a standard section of a tower crane, which is convenient to install, can monitor the state of a tower body in real time and improve the safety of the tower crane, so as to solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a device for detecting the verticality of a standard section of a tower crane is installed on a tower body of the tower crane, the tower body comprises the standard section consisting of a plurality of steel beams, the standard sections are connected through bolts, the device comprises a shell, and a tension sensor, a power supply module, a main control module and a wireless module which are installed in the shell, wherein the tension sensor comprises a strain gauge and two strain blocks, the two strain blocks are symmetrically installed on two sides of the strain gauge along the central axis center of the strain gauge, one end of each strain block is connected with one end of the strain gauge, the other end of each strain block penetrates out of the shell and is connected with a spring, the spring is connected with a hook, and the two hooks are respectively hung on the horizontal steel beams of the adjacent standard sections, so that the; the strain gauge is connected with the main control module, and the main control module is connected with background equipment through a wireless module.
Preferably, the strain block comprises an installation part and a connection part which are integrally formed, the installation part is connected with one end of the strain gauge, and the connection part is connected with the spring.
Preferably, the mounting portion is perpendicular to the connecting portion, so that the strain gauge is L-shaped.
Preferably, the connecting parts of the two strain blocks are located on the same plane.
Preferably, the center of the two opposite side walls of the shell is provided with a through hole for the connection part to penetrate out conveniently.
Preferably, the main control module is connected with a reset key, the power module is connected with an on-off key, and the reset key and the on-off key are both installed on the shell.
A method for detecting the perpendicularity of a standard knot of a tower crane comprises the following steps,
s1: installing a plurality of devices for detecting the perpendicularity of the tower crane standard sections between horizontal steel beams of adjacent standard sections of a tower body, and respectively hanging two hooks on the horizontal steel beams of the adjacent standard sections to ensure that two springs are both vertical and in a stretching state;
s2: marking the device for detecting the perpendicularity of each tower crane standard knot, starting and resetting the device, and confirming the signal of the device capable of receiving the perpendicularity detection of each tower crane standard knot by background equipment;
s3: setting a threshold range of data sent by the device at background equipment, monitoring and comparing data sent by the device for detecting the perpendicularity of the standard sections of the tower cranes by the background equipment, and judging whether potential safety hazards exist in the tower body;
s4: when the data received and processed by the background equipment exceeds the threshold range, the background equipment sends an alarm signal and informs a related operator of abnormal data of the device where the operator is located, and the operator overhauls the standard section at the position;
s5: after the overhaul is finished, the device for detecting the perpendicularity of the standard section of the tower crane is reinstalled, the device is reset, and the background equipment is confirmed to be capable of receiving signals of the device.
The invention has the beneficial effects that:
(1) after the device is installed through each standard section, the safety problems of the tower crane, such as inclination, loosening of a screw rod of the standard section of the tower crane and the like, can be overcome through numbering and fixing points of each installation point;
(2) the mode of installing the device on the tower crane can be used for installing four sides of the standard knot, so that the monitoring of which direction of the standard knot is seriously deformed and loosened can be realized, and accurate maintenance data can be provided for manual maintenance;
(3) the installation is convenient, the installation mode is different from that of a screw structure on a traditional tower crane, and the installation and maintenance work efficiency can be greatly improved;
(4) the uninterrupted continuous monitoring for 24h can be realized, and the operation of the tower crane can be monitored in real time in other time except the operation time of the tower crane;
(5) the cost is lower, and large-scale mass production and market use can be ensured.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic diagram of the structure of a strain gage and a strain block according to the present invention;
fig. 3 is a schematic view of the installation of the present invention.
The labels in the figure are: 1-tower body, 2-shell, 31-strain gauge, 32-strain block, 4-spring and 5-hook.
Detailed Description
The technical solutions in the present embodiments will be clearly and completely described below with reference to the accompanying drawings in the present embodiments, which, however, should not be construed as limiting the invention to specific embodiments, but are for explanation and understanding only:
as shown in FIG. 1, FIG. 2 and FIG. 3, this embodiment provides a device for detecting the perpendicularity of a standard section of a tower crane, which is installed on a tower body 1 of the tower crane and comprises a shell 2, a tension sensor, a spring 4, a battery module, a main control module and a wireless module.
Tension sensor includes foil gage 31 and two gauge blocks 32, and foil gage 31 is the present commonly used component that is used for measuring meeting an emergency, and gauge block 32 is including installation integrated into one piece's installation department and connecting portion, and the installation department is perpendicular with connecting portion, makes gauge block 32 be L shape, and bolted connection is passed through with foil gage 31's one end to the installation department, connecting portion wear out 2 back shells and are connected with spring 4, and the one end that the installation department was kept away from to connecting portion is opened there is the mounting hole for connecting spring 4, spring 4 are connected with couple 5, and couple 5 adopts the sheetmetal curved system to form in this embodiment, and the kink of couple 5 matches with the thickness of the steelframe of body of tower 1, makes this embodiment can install on body of tower 1 steadily. The two hooks 5 are hung on horizontal steel beams of adjacent standard knots respectively, so that the two springs 4 are vertical and in a stretching state.
Two strain blocks 32 are located the different both sides of foil gage 31 respectively, and two strain blocks 32 are located the different ends of foil gage 31 respectively, make two strain blocks 32 are installed in foil gage 31 both sides along the axis central symmetry of foil gage 31, two strain block 32's connecting portion are located the coplanar, are convenient for stretch strain gage 31. When the two standard knots generate relative displacement, the two hooks 5 respectively pull the two springs 4 to drive the two strain blocks 32 to stretch towards different directions, and the strain gauge 31 generates strain data.
The power module, the main control module and the wireless module are fixedly mounted in the shell 2, the strain gauge is connected with the main control module, the main control module is connected with background equipment through the wireless module, and the background equipment has the functions of displaying, calculating, alarming and sending notifications in the embodiment. The power module is a 200Ma lithium battery, is connected with each module, and supplies power for the foil gage and each module.
After the strain data sent by the strain gauge 31 are converted into mechanical data by the main control module, the mechanical data are sent to the background equipment through the wireless module to be displayed and stored, and the background equipment can calculate and compare the data of the plurality of strain gauges 31 to know whether the current state of the tower body 1 is stable and vertical.
The power module is connected with the on-off key, whether the on-off key control device is started is pressed, the main control module is connected with a reset key, the reset key is pressed, after the main control module receives the signal, the main control module takes the elastic value of the current spring 4 as an initial value and sends the signal to the background equipment, the elastic data displayed on the background equipment is 0, and the reset key and the on-off key are both installed on the shell 2.
A method for detecting the perpendicularity of a standard knot of a tower crane comprises the following steps,
s1: installing a plurality of devices for detecting the perpendicularity of the standard sections of the tower crane between horizontal steel beams of adjacent standard sections of a tower body 1, installing a group of devices for every two standard sections, wherein the group of devices comprises n devices, n is more than or equal to 1, the total number of the standard sections of the tower crane is set to be x, the group number of the installation devices is (x-1) groups, the total number of the installation devices is further (x-1) × n, two hooks 5 of each device are respectively hung on the horizontal steel beams of the adjacent standard sections, and two springs 4 are both vertical and in a stretching state;
s2: labeling the devices for detecting the perpendicularity of the standard knots of each group of tower cranes, numbering the devices of the standard knots according to any sequencing sequence of the standard knots, wherein the numbers of the devices of the standard knots are 1(x-1) and 2(x-1) … x (x-1), each group comprises n data, starting and resetting the devices, background equipment confirms that the signals of the devices for detecting the perpendicularity of the standard knots of each tower crane can be received, the recorded data of the devices is y, y is more than or equal to 0, and the value of y is determined as a point of a plane coordinate system, so that the perpendicularity change curve of the whole tower crane can be;
s3, setting a threshold range of data sent by a device at background equipment, setting the threshold as O, and setting a relation between O and a hoisting weight t and a deformation relation y as follows, (t + β)/y is equal to O, β is a constant value, further when t is increased, in order to ensure that O does not change, a deformation coefficient y is relatively high, if t is decreased, in order to ensure that O does not change, the deformation relation is also relatively low, the background equipment monitors and compares data sent by the device for detecting the perpendicularity of each tower crane standard section to calculate (t + β)/y, and judges whether a tower crane body 1 has potential safety hazards or not;
s4: when the data received and processed by the background equipment exceeds the threshold range, the background equipment sends an alarm signal and informs a related operator of abnormal data of the device where the operator is located, and the operator overhauls the standard section at the position;
s5: after the overhaul is finished, the device for detecting the perpendicularity of the standard section of the tower crane is reinstalled, the device is reset, and the background equipment is confirmed to be capable of receiving signals of the device.
The working mode of the embodiment is as follows:
and the two hooks 5 are respectively hung on adjacent steel frames of adjacent standard knots on the tower body 1, so that the two springs 4 are both in a stretching state and are vertical. The on-off key is pressed, the zero clearing key is pressed, the device starts to work, when the positions of adjacent standard knots are changed relatively, the tower body 1 is inclined, the positions of the two hooks 5 are changed relatively, the spring 4 is deformed, the strain data of the strain gauge 31 is changed and the data are sent to the main control module, the main control module sends the data to the background equipment through the wireless module after processing, the background equipment judges whether the data are in a threshold range, if the data exceed the threshold, an alarm signal is sent out, the device data where a related operator is located are informed of abnormality, and the operator overhauls the standard knots at the positions.
It is to be understood that the above examples are merely illustrative for clarity of description and are not limiting on the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (7)
1. The utility model provides a device of tower crane standard festival straightness detection that hangs down installs on body of the tower crane (1), and body of the tower (1) includes the standard festival that the several girder steel is constituteed, through bolted connection, its characterized in that between the standard festival: the tension sensor comprises a shell (2), and a tension sensor, a power module, a main control module and a wireless module which are arranged in the shell (2), wherein the tension sensor comprises a strain gauge (31) and two strain gauges (32), the two strain gauges (32) are symmetrically arranged on two sides of the strain gauge (31) along the central axis of the strain gauge (31), one end of each strain gauge (32) is connected with one end of the strain gauge (31), the other end of each strain gauge penetrates through the shell (2) and is connected with a spring (4), the spring (4) is connected with a hook (5), the two hooks (5) are respectively hung on horizontal steel beams of adjacent standard joints, and the two springs (4) are vertical and in a stretching state; the strain gauge (31) is connected with the main control module, and the main control module is connected with background equipment through a wireless module.
2. The tower crane standard festival straightness detection device that hangs down of claim 1, its characterized in that: strain gauge (32) are including installation integrated into one piece's installation department and connecting portion, the installation department is connected with foil gage (31) one end, connecting portion are connected with spring (4).
3. The tower crane standard festival straightness detection's device that hangs down of claim 2, its characterized in that: the mounting portion is perpendicular to the connecting portion, so that the strain block (32) is L-shaped.
4. The tower crane standard festival straightness detection device that hangs down of claim 3, its characterized in that: the connecting parts of the two strain blocks (32) are positioned on the same plane.
5. The tower crane standard festival straightness detection device that hangs down of claim 4, its characterized in that: the center of the two opposite side walls of the shell (2) is provided with a through hole which is convenient for the connection part to penetrate out.
6. The tower crane standard festival straightness detection device that hangs down of claim 1, its characterized in that: the main control module is connected with a reset key, the power supply module is connected with an on-off key, and the reset key and the on-off key are both installed on the shell (2).
7. The tower crane standard knot perpendicularity detection method according to claims 1-6, characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1: the device for detecting the perpendicularity of the standard sections of the tower crane is arranged between horizontal steel beams of adjacent standard sections of a tower body (1), and two hooks (5) are hung on the horizontal steel beams of the adjacent standard sections respectively, so that two springs (4) are vertical and in a stretching state;
s2: marking the device for detecting the perpendicularity of each tower crane standard knot, starting and resetting the device, and confirming the signal of the device capable of receiving the perpendicularity detection of each tower crane standard knot by background equipment;
s3: setting a threshold range of data sent by the device at background equipment, monitoring and comparing data sent by the device for detecting the perpendicularity of the standard sections of the tower cranes by the background equipment, and judging whether the tower body (1) has potential safety hazards or not;
s4: when the data received and processed by the background equipment exceeds the threshold range, the background equipment sends an alarm signal and informs a related operator of abnormal data of the device where the operator is located, and the operator overhauls the standard section at the position;
s5: after the overhaul is finished, the device for detecting the perpendicularity of the standard section of the tower crane is reinstalled, the device is reset, and the background equipment is confirmed to be capable of receiving signals of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269136.1A CN110823164A (en) | 2019-12-11 | 2019-12-11 | Device and method for detecting perpendicularity of standard section of tower crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911269136.1A CN110823164A (en) | 2019-12-11 | 2019-12-11 | Device and method for detecting perpendicularity of standard section of tower crane |
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| CN110823164A true CN110823164A (en) | 2020-02-21 |
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| CN201911269136.1A Pending CN110823164A (en) | 2019-12-11 | 2019-12-11 | Device and method for detecting perpendicularity of standard section of tower crane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147648A (en) * | 2021-03-03 | 2021-07-23 | 西华大学 | Dot-matrix airbag popping judgment system and judgment method for unmanned vehicle |
| CN113532542A (en) * | 2021-08-04 | 2021-10-22 | 王晨光 | Integral stress state real-time monitoring system for tower mast structure |
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2019
- 2019-12-11 CN CN201911269136.1A patent/CN110823164A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147648A (en) * | 2021-03-03 | 2021-07-23 | 西华大学 | Dot-matrix airbag popping judgment system and judgment method for unmanned vehicle |
| CN113147648B (en) * | 2021-03-03 | 2022-07-01 | 西华大学 | Dot-matrix airbag popping judgment system and judgment method for unmanned vehicle |
| CN113532542A (en) * | 2021-08-04 | 2021-10-22 | 王晨光 | Integral stress state real-time monitoring system for tower mast structure |
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