CN103424054A - Stay wire sensor, method for protecting same and engineering machine - Google Patents
Stay wire sensor, method for protecting same and engineering machine Download PDFInfo
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- CN103424054A CN103424054A CN2013103219995A CN201310321999A CN103424054A CN 103424054 A CN103424054 A CN 103424054A CN 2013103219995 A CN2013103219995 A CN 2013103219995A CN 201310321999 A CN201310321999 A CN 201310321999A CN 103424054 A CN103424054 A CN 103424054A
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- stay wire
- bracing wire
- moving component
- wire sensor
- pulling force
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Abstract
The invention discloses a stay wire sensor, a method for protecting the dame and an engineering machine. The stay wire sensor at least comprises a stay wire, a tensile force detecting device, a connecting assembly capable of being disconnected and connected and a controller. The stay wire is connected between a moving assembly and a winding device. The method for protecting the stay wire sensor includes steps of detecting tensile force on the stay wire; judging whether the tensile force is higher than a first preset value or not, disconnecting the stay wire from the moving assembly and the winding device if the tensile force is higher than the first preset value, and withdrawing the stay wire via the winding device. The stay wire sensor, the method and the engineering machine have the advantages that the stay wire can be prevented from being broken, a stay wire sensor protecting effect is obvious, the stay wire sensor maintaining and replacing frequency is greatly reduced, and whether the stay wire is in a drooping state or not and whether the winding device is in an aged or failure state or not can be judged.
Description
Technical field
The present invention relates generally to sensory field, specifically, relates to a kind of guard method of stay wire sensor, a kind of stay wire sensor with bracing wire defencive function, and the engineering machinery that is provided with this stay wire sensor.
Background technology
Extensively adopt stay wire sensor on the engineering machinery such as crane, front handling mobile crane, fire truck, be used for measuring the spread length of the stretching structure such as jib.As shown in Figure 1, bracing wire 1 is fixed on moving component 2 version of this stay wire sensor usually, when moving component 2 stretches out, by these moving component 2 direct pull bracing wires 1; When moving component 2 is retracted, 1 of bracing wire by collecting device 3(as scroll spring) retract, by the rotational displacement of measurement collecting device 3, calculate the displacement of the lines of bracing wire 1 folding and unfolding, can obtain the spread length of jib.
Adopt the structure of Fig. 1, the fault that bracing wire 1 is pulled off often occurs in the practice of construction process.As bracing wire 1 is involved by other object hooks, cause the pulling force of bracing wire 1 excessive, thereby break bracing wire 1 and cause its inefficacy, not only cause stay wire sensor normally to measure, affect the normal construction operation of engineering machinery, and stay wire sensor is overhauled while changing and also needs to expend a large amount of time and financial resources, brought greater loss to the client.
In addition, big-eared vertical problem also easily appears in bracing wire 1.As the withdrawal speed of jib is greater than bracing wire backrush speed or sensor internal pulling force when inadequate, bracing wire 1 big-eared hanging down occur and is easily caught on by foreign matter; At the collecting device 3(of bracing wire 1 as scroll spring) while other faults such as aging or fracture occurring, also can cause bracing wire 1 big-eared hanging down to occur.For big-eared vertical bracing wire 1, on the one hand can not the Measurement accuracy spread length, if do not carry out on the other hand respective handling when being caught on by foreign matter, when continuing action, jib also may cause bracing wire 1 to be pulled off.
Therefore, how detecting in real time the duty of bracing wire, and bracing wire is carried out to necessary protection, with damage and the measurement misalignment of avoiding stay wire sensor, is those skilled in the art's technical matterss urgently to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of guard method of stay wire sensor, this guard method can be avoided the bracing wire excessive and problem that bracing wire that cause is broken and lost efficacy of Yin Lali in the course of the work.
The guard method of stay wire sensor of the present invention, described stay wire sensor comprises bracing wire, and described bracing wire is connected between moving component and collecting device, and described guard method comprises the following steps:
Detect the pulling force of described bracing wire;
Judge whether described pulling force is greater than the first preset value, if, disconnecting the connection of described bracing wire from described moving component to collecting device, described bracing wire is regained by described collecting device.
Further, this guard method is further comprising the steps of:
Judge whether described pulling force is less than the second preset value, if the controlled motion parts make its pause in action Preset Time.
Further, suspend Preset Time in moving component withdrawal process after, if described pulling force returns to normal range, prompt for moving component and regain excessive velocities.
Further, this guard method is further comprising the steps of:
When described pulling force is greater than the first preset value or is less than the second preset value, send alerting signal or carry out condition prompting.
Further, if when moving component moves, described pulling force is stablized and is maintained the 3rd preset value following (lower than the 3rd preset value), prompts for the aging or fault of collecting device.The 3rd preset value can be greater than aforementioned the second preset value, and is less than aforementioned the first preset value.
Another aspect of the present invention, also provide a kind of stay wire sensor.This pull sensor comprises bracing wire, and described bracing wire is connected between moving component and collecting device, and comprises:
Stretching force detecting apparatus, described stretching force detecting apparatus is for detection of the pulling force of described bracing wire;
The link that can disconnect and engage, described link is connected between described bracing wire and described moving component;
Controller, described controller connects described stretching force detecting apparatus and described link, and when described controller is judged as described pulling force and is greater than the first preset value, described link disconnects, and described bracing wire is regained by described collecting device.
Further, described link comprises stiff end joint and movable end joint, and described stiff end joint is arranged on moving component, and described movable end joint is arranged at the end of bracing wire.
Further, described stretching force detecting apparatus is connected between described stiff end joint and described moving component.
Further, this pulling force sensor also comprises warning device, and described warning device connects described controller, and when described controller is judged as described pulling force and is greater than the first preset value or is less than the second preset value, described warning device sends alerting signal.
Another aspect of the present invention, also provide a kind of engineering machinery, and this project machinery is provided with the stay wire sensor of aforementioned any one.
Stay wire sensor of the present invention and guard method thereof; when pulling force is excessive; can disconnect the connection of described bracing wire from described moving component to collecting device; described bracing wire is regained by described collecting device; after unexpected situation solves, then by link, bracing wire is connected on moving component, thereby can prevents that bracing wire is pulled off; protection effect to stay wire sensor is remarkable, has reduced widely the frequency that maintenance is changed to stay wire sensor.
In further technical scheme, when pulling force is too small, make moving component suspend Preset Time, according to the situation of change of suspending back pull, can be judged as moving component and regain excessive velocities, or bracing wire the abnormal conditions such as caught on, for operating personnel's further troubleshooting, process foundation is provided.
In addition, the present invention can also judge whether collecting device is aging or malfunction, and convenient operation personnel's timely maintenance is changed, and has guaranteed the normal operation of stay wire sensor, has improved the construction reliability of engineering machinery.
The accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 is the structural representation of stay wire sensor after installation of prior art;
Fig. 2 is the structural representation of stay wire sensor after installation of one embodiment of the invention.
Description of reference numerals:
1 bracing wire
2 moving components
3 collecting devices
4 stretching force detecting apparatus
51 stiff end joints
52 movable end joints
Embodiment
It should be noted that, in the situation that do not conflict, embodiment and the feature in embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The first embodiment of the present invention provides a kind of guard method of stay wire sensor, and the stay wire sensor that the method is protected comprises bracing wire 1, and bracing wire 1 is connected between moving component 2 and collecting device 3, the scalable action of moving component 2, and the position of collecting device 3 is fixed.This stay wire sensor can be used for measuring the spread length of stretching structure (as jib).
Moving component 2 can, with respect to the fixed part telescopic moving, when moving component 2 stretches out, pull bracing wire 1 by this moving component 2; When moving component 2 is retracted, 1 of bracing wire by collecting device 3(as scroll spring) retract.
The guard method of the stay wire sensor of this embodiment comprises the following steps: the pulling force that detects bracing wire 1; Judge whether pulling force is greater than the first preset value, if, disconnecting bracing wire 1 connection of 3 from moving component 2 to collecting device, bracing wire 1 is regained by collecting device 3.
Wherein, those skilled in the art can adopt the mode of automatic measurement or manual measurement to detect the pulling force of bracing wire 1; And, when pulling force is excessive, can adopt automatic cutout or the artificial method disconnected to carry out above-mentioned steps, the present invention is not limited to this.After disconnecting, bracing wire 1 is regained by collecting device 3, avoided Yin Lali further to increase and cause break failure phenomenon, therefore stay wire sensor is had to significant protection effect.
After bracing wire 1 disconnects, operating personnel can carry out fault handling at the scene, as judged, whether bracing wire 1 is because by other object hooks, being involved and cause pulling force excessive, after fixing a breakdown, bracing wire 1 is reconnected on moving component 2, and stay wire sensor can be proceeded work.Owing to effectively having avoided bracing wire 1 to be pulled off inefficacy, thereby reduced widely the frequency that maintenance is changed to stay wire sensor.
Further, should be understood that, when the bracing wire 1 of stay wire sensor is big-eared vertical problem, is subject to equally foreign body hook and worries and pull and cause bracing wire 1 infringement.In order to protect stay wire sensor, the guard method of this embodiment also comprises the step that determines whether big-eared vertical state, specifically comprises and judges whether pulling force is less than the second preset value, if controlled motion parts 2 make its pause in action Preset Time.
When the pulling force of bracing wire 1 is too small, can tentatively be judged as that bracing wire is big-eared hangs down, the situation of change according to suspending back pull, can be judged as moving component 2 excessive velocities, or bracing wire 1 abnormal conditions such as caught on, and for operating personnel's further troubleshooting, processes foundation is provided.As a kind of possibility situation, suspend Preset Time in moving component 2 withdrawal processes after, if pulling force returns to normal range (this normal range refers to the scope between the first preset value and the second preset value), prompt for moving component 2 and regain excessive velocities.After time-out, by collecting device 3, bracing wire 1 is progressively regained, bracing wire 1 can be strained, thereby make pulling force recover normal.
As another kind of possibility situation, after moving component 2 suspends Preset Time, if pulling force being detected does not change always, illustrative system in abnormal conditions (as bracing wire 1 is caught on, jib continues action and causes that bracing wire is big-eared hangs down), now can provide alerting signal, alert is carried out the troubleshooting processing in time.
Further, after 3 work long periods, there will be the fatigue aging phenomenon, or collecting device 3 self is prone to the faults such as crackle at collecting device.At collecting device 3 after aging or fault, its recovery power (pulling force) deficiency, thus affect the normal measurement of stay wire sensor.
In order to find early this problem, the method for previous embodiment is further comprising the steps of: if when moving component 2 action, pulling force is stablized and is maintained the 3rd below preset value, prompts for the aging or fault of collecting device 3.The 3rd preset value can be greater than aforementioned the second preset value, and is less than aforementioned the first preset value.
On the basis of technique scheme, operating personnel can know the duty of collecting device 3 in time, are convenient to overhaul in advance replacing, have guaranteed the normal operation of stay wire sensor, have improved the construction reliability of engineering machinery.
In further technical scheme, when aforementioned arbitrary fortuitous event occurring, when as pulling force, being greater than the first preset value or being less than the second preset value, or collecting device 3 is aging or during fault, send alerting signal or carry out condition prompting, remind operating personnel to carry out further troubleshooting processing.
Except aforementioned stay wire sensor guard method, the present invention also provides a kind of stay wire sensor.Shown in Fig. 2, be the structural representation of stay wire sensor after installation of one embodiment of the invention.This stay wire sensor comprises bracing wire 1, and bracing wire 1 is connected between moving component 2 and collecting device 3, and comprises stretching force detecting apparatus 4, link and controller.
Wherein, this stretching force detecting apparatus 4 is for detection of the pulling force of bracing wire 1; This link can be realized disconnecting and engagement state, and is connected between bracing wire 1 and moving component 2; This controller connects stretching force detecting apparatus 4 and link, and when controller is judged as pulling force and is greater than the first preset value, link disconnects, and bracing wire 1 is regained by collecting device 3.
After link disconnects, can avoid Yin Lali further to increase and cause break failure phenomenon, therefore there is significant protection effect.After operating personnel carry out the fault eliminating, again link is engaged, stay wire sensor can be proceeded work.
Link can connect or the structure of pressure adhesive for multiple possible mechanical snap, electromagnetism, preferably this link comprises stiff end joint 51 and movable end joint 52, stiff end joint 51 is arranged on moving component 2, and movable end joint 52 is arranged at the end of bracing wire 1.
This stretching force detecting apparatus 4 can be arranged at a plurality of positions on stay wire sensor, as long as the pulling force of bracing wire 1 can be detected.As a kind of embodiment, as shown in Figure 2, this stretching force detecting apparatus 4 is connected between stiff end joint 51 and moving component 2, measures the stress intensity that movable end joint 52 imposes on stiff end joint 51, is also the pulling force size of bracing wire 1.
Further, this stay wire sensor also can comprise warning device, and warning device connects controller, and when controller is judged as pulling force and is greater than the first preset value or is less than the second preset value, warning device sends alerting signal.This warning device can be hummer or alarm lamp, by reporting to the police, can remind operating personnel to carry out further troubleshooting processing.
Another aspect of the present invention, also provide a kind of engineering machinery that is provided with aforementioned stay wire sensor.Other structure of this project machinery can be with reference to prior art, and this paper is not limited to this.Aforementioned movement parts 2 can be the extensible members of engineering machinery, as telescopic jib etc.This project machinery can be to have the equipment of stretching structure as crane etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the guard method of a stay wire sensor, described stay wire sensor comprises bracing wire (1), and described bracing wire (1) is connected between moving component (2) and collecting device (3), it is characterized in that, and described guard method comprises the following steps:
Detect the pulling force of described bracing wire (1);
Judge whether described pulling force is greater than the first preset value, if, disconnecting the connection of described bracing wire (1) from described moving component (2) to collecting device (3), described bracing wire (1) is regained by described collecting device (3).
2. the guard method of stay wire sensor according to claim 1, is characterized in that, further comprising the steps of:
Judge whether described pulling force is less than the second preset value, if controlled motion parts (2) make its pause in action Preset Time.
3. the guard method of stay wire sensor according to claim 2, is characterized in that, suspend Preset Time in moving component (2) withdrawal process after, if described pulling force returns to normal range, prompts for moving component (2) and regain excessive velocities.
4. the guard method of stay wire sensor according to claim 2, is characterized in that, further comprising the steps of:
When described pulling force is greater than the first preset value or is less than the second preset value, send alerting signal or carry out condition prompting.
5. the guard method of stay wire sensor according to claim 1, is characterized in that, if when moving component (2) moves, described pulling force is stablized and maintained the 3rd below preset value, prompts for the aging or fault of collecting device (3).
6. a stay wire sensor, comprise bracing wire (1), and described bracing wire (1) is connected between moving component (2) and collecting device (3), it is characterized in that, also comprises:
Stretching force detecting apparatus (4), described stretching force detecting apparatus (4) is for detection of the pulling force of described bracing wire (1);
The link that can disconnect and engage, described link is connected between described bracing wire (1) and described moving component (2);
Controller, described controller connects described stretching force detecting apparatus (4) and described link, and when described controller is judged as described pulling force and is greater than the first preset value, described link disconnects, and described bracing wire (1) is regained by described collecting device (3).
7. stay wire sensor according to claim 6, it is characterized in that, described link comprises stiff end joint (51) and movable end joint (52), and it is upper that described stiff end joint (51) is arranged at moving component (2), and described movable end joint (52) is arranged at the end of bracing wire (1).
8. stay wire sensor according to claim 6, is characterized in that, described stretching force detecting apparatus (4) is connected between described stiff end joint (51) and described moving component (2).
9. according to the described stay wire sensor of claim 6-8 any one, it is characterized in that, also comprise warning device, described warning device connects described controller, when described controller is judged as described pulling force and is greater than the first preset value or is less than the second preset value, described warning device sends alerting signal.
10. an engineering machinery, is characterized in that, is provided with the described stay wire sensor of claim 6-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310321999.5A CN103424054B (en) | 2013-07-29 | 2013-07-29 | A kind of stay wire sensor and guard method, engineering machinery |
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| CN201310321999.5A CN103424054B (en) | 2013-07-29 | 2013-07-29 | A kind of stay wire sensor and guard method, engineering machinery |
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| CN103424054A true CN103424054A (en) | 2013-12-04 |
| CN103424054B CN103424054B (en) | 2016-12-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104121846A (en) * | 2014-08-18 | 2014-10-29 | 南京晨光森田环保科技有限公司 | Detection method for stay wire state of length sensor |
| CN105526892A (en) * | 2016-01-14 | 2016-04-27 | 中国核电工程有限公司 | Feeding pusher position detecting device |
| CN105559735A (en) * | 2014-11-05 | 2016-05-11 | 深圳市古安泰自动化技术有限公司 | Endoscope |
| CN107565729A (en) * | 2017-08-22 | 2018-01-09 | 安徽杰特电气有限公司 | anti-deformation support mechanism |
| CN110186491A (en) * | 2019-06-18 | 2019-08-30 | 重庆交通大学 | Sensor survey line protective device and sensor survey line protect component |
| CN111284728A (en) * | 2018-12-06 | 2020-06-16 | 波音公司 | Flight control cable sensor for aircraft |
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| CN110186491A (en) * | 2019-06-18 | 2019-08-30 | 重庆交通大学 | Sensor survey line protective device and sensor survey line protect component |
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| Publication number | Publication date |
|---|---|
| CN103424054B (en) | 2016-12-28 |
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Denomination of invention: Stay wire sensor, method for protecting same and engineering machine Effective date of registration: 20181227 Granted publication date: 20161228 Pledgee: Business Department of Hunan Branch of China Construction Bank Co., Ltd. Pledgor: Hunan Sany Intelligent Control Equipment Co., Ltd. Registration number: 2018430000146 |
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Date of cancellation: 20211217 Granted publication date: 20161228 Pledgee: Business Department of Hunan Branch of China Construction Bank Co.,Ltd. Pledgor: HUNAN SANY INTELLIGENT CONTROL EQUIPMENT Co.,Ltd. Registration number: 2018430000146 |