CN105427544A - Mixing truck, bolt looseness early-warning device and method - Google Patents
Mixing truck, bolt looseness early-warning device and method Download PDFInfo
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- CN105427544A CN105427544A CN201510959259.3A CN201510959259A CN105427544A CN 105427544 A CN105427544 A CN 105427544A CN 201510959259 A CN201510959259 A CN 201510959259A CN 105427544 A CN105427544 A CN 105427544A
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- bolt
- looseness
- installation portion
- warning device
- sensor
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a bolt looseness early-warning device and a method. The bolt looseness early-warning device comprises a controller and a sensor used to measure looseness degree information between a bolt and an installation part of the bolt, wherein the controller is used to receive the looseness degree information sent by the sensor and controls a prompter to send an alarm prompt when the looseness degree information exceeds a preset critical value scope. Through coordination among the sensor, the controller and the prompter, the bolt looseness early-warning device disclosed by the invention reflects a bolt looseness situation to an operator, lets the operator timely fasten the bolt, avoids looseness and failure of the bolt at a mechanical key part, realizes measurement and the alarm prompt for the bolt looseness degree and ensures knowability of the looseness degree between the bolt and an installation part so as to guarantee safe running of machinery. The invention also discloses a mixing truck containing the bolt looseness early-warning device, which can ensure safety and stability during a truck travelling course.
Description
Technical field
The present invention relates to detection field of measuring technique, more particularly, relate to a kind of bolt looseness prior-warning device and method.In addition, the invention still further relates to a kind of trucd mixer comprising above-mentioned bolt looseness prior-warning device.
Background technology
Trucd mixer class machinery is by engine providing source power, and sends power to stirring tank body by Hydraulic Elements such as transmission shaft, hydraulic pump, motor, reductors.Reductors etc. are generally bolt and are connected between device with fore-stock, in use because power transmission can produce certain vibration, especially when running into the situation of emergency brake, be subject to inertia-responsive reductor and fore-stock can produce loosening.But, above-mentioned loosening generation is not easily discovered usually, less loosen long-time accumulation after can cause being separated of bolt fracture or reductor and fore-stock, a point defection occurs in such mechanical use procedure and causes comparatively serious accident, the normal operation that impact is mechanical also causes serious damage to reductor or car body.
In sum, how the installation of Timeliness coverage bolt loosens, and is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the object of this invention is to provide a kind of bolt looseness prior-warning device and method, can Timeliness coverage bolt loosen, avoid occur security incident.Another object of the present invention is to provide a kind of trucd mixer comprising above-mentioned bolt looseness prior-warning device, and the reductor of this trucd mixer is installed stable, long service life.
To achieve these goals, the invention provides following technical scheme:
A kind of bolt looseness prior-warning device, comprise controller and for measure bolt and described bolt installation portion between the sensor of tightness information, the described tightness information that described controller sends for receiving described sensor, and control prompting device carries out alarm when described tightness information exceeds preset critical scope.
Preferably, described sensor is the strain gauge for measuring stress value between described bolt and described installation portion, and described strain gauge is clamped between described bolt and described installation portion.
Preferably, described strain gauge is stress section, on the bolt head that described stress section is arranged on described bolt or be arranged on described installation portion, and is positioned on position that described bolt head and described installation portion fit.
Preferably, described sensor is the distance measuring sensor for measuring relative distance between described bolt and described installation portion, and described distance measuring sensor is arranged at described bolt and described installation portion side.
Preferably, described prompting device comprises voice guard, photoelectric alarm or the display for display alarm information.
Preferably, be provided with the evaluation module for the variation tendency of tightness information described in real-time statistics in described controller, described evaluation module is used for controlling described prompting device based on described variation tendency and carries out pre-alarm.
A kind of trucd mixer, comprise reductor, also comprise the bolt looseness prior-warning device described in above-mentioned any one, described reductor is fixed on described installation portion by described bolt.
A kind of bolt looseness detection method, comprise: measure the tightness information between the installation portion obtaining bolt and described bolt, more described tightness information and preset critical scope, carry out alarm when described tightness information exceeds described preset critical scope.
Preferably, the step measuring the tightness information between the installation portion obtaining bolt and described bolt comprises:
Be clamped in by strain gauge between described bolt and described installation portion, measure the stress value obtained between described bolt and described installation portion, described stress value is described tightness information.
Preferably, also comprise: the variation tendency of tightness information described in real-time statistics, carry out the pre-alarm of described bolt looseness based on described variation tendency.
Bolt looseness prior-warning device provided by the present invention by installing sensor additional between bolt and installation portion, the tightness information recorded by sensor by controller and preset critical scope are contrasted, when exceeding safe preset critical scope, controlling prompting device and carrying out alarm.By the cooperation of sensor, controller and prompting device, the loosening situation of bolt is informed operating personnel, allow the timely fastening bolt of operating personnel, avoid loosening and losing efficacy of the bolt at mechanical key position, thus reach the object ensureing that machine security runs.
Present invention also offers a kind of trucd mixer comprising above-mentioned bolt looseness prior-warning device, bolt looseness prior-warning device is installed on reductor and erecting frame, can ensure that the installation of reductor is stablized, ensure when driving, reductor can not drop because of bolt looseness, improves the serviceable life of trucd mixer.
Present invention also offers a kind of bolt looseness method for early warning, the method achieve the measurement to bolt looseness degree and alarm, ensure the tightness knowability between bolt and installation position.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the scheme of installation of the specific embodiment of bolt looseness prior-warning device provided by the present invention;
Fig. 2 is the control schematic diagram of the specific embodiment of bolt looseness prior-warning device provided by the present invention.
In upper Fig. 1-2:
1 be sensor, 2 be controller, 3 be prompting device, 4 be bolt, 5 be installation portion, 6 for reductor.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Core of the present invention is to provide a kind of bolt looseness prior-warning device and method, can Timeliness coverage bolt loosen, avoid occur security incident.Another core of the present invention is to provide a kind of trucd mixer comprising above-mentioned bolt looseness prior-warning device, and the reductor of this trucd mixer is installed stable, trucd mixer long service life.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the scheme of installation of the specific embodiment of bolt looseness prior-warning device provided by the present invention; Fig. 2 is the control schematic diagram of the specific embodiment of bolt looseness prior-warning device provided by the present invention.
A kind of bolt looseness prior-warning device provided by the present invention, under normal circumstances, bolt 4 is installed on installation portion 5, and this device is mainly used in reporting to the police to loosening between bolt 4 and installation portion 5.Structurally mainly comprise controller 2 and sensor 1, sensor 1 is for measuring the tightness information between bolt 4 and installation portion 5, and tightness information is sent to controller 2, the tightness information that controller 2 sends for receiving sensor 1, and tightness information and the preset critical scope pre-set are contrasted, when tightness information exceeds preset critical scope, controller 2 pairs of prompting devices 3 control, and make prompting device 3 send alarm.Wherein, sensor 1 is connected with controller 2, and controller 2 is connected with prompting device 3.
Bolt looseness prior-warning device provided by the present invention by installing sensor 1 additional between bolt 4 and installation portion 5, the tightness information recorded by sensor 1 by controller 2 and preset critical scope are contrasted, when exceeding safe preset critical scope, controlling prompting device 3 and carrying out alarm.By the cooperation of sensor 1, controller 2 and prompting device 3, the loosening situation of bolt 4 is informed operating personnel, allow the timely fastening bolt 4 of operating personnel, avoid loosening and losing efficacy of the bolt 4 at mechanical key position, thus reach the object ensureing that machine security runs.
It should be noted that, above-mentioned installation portion 5 is the fixed position of bolt 4, is generally the installing plate or erecting frame with through hole, and target fixture is fixed on installation portion 5 through through hole by bolt 4.Above-mentioned controller 2, electric wire can be adopted between sensor 1 and prompting device 3 to connect, or adopt signal communication connection, connected mode common in existing control technology all belongs in the scope that the present invention protects.Tightness information is tightness quantitative information between bolt 4 and installation portion 5, and according to strain gauge as sensor 1, then tightness information is stress value; According to distance measuring sensor as sensor 1, then tightness information is distance value.
In addition, the prompting that above-mentioned prompting device 3 couples of Engineering operation personnel carry out can have various ways, is not limited to the mode of auditory tone cues.
It should be noted that above-mentioned measurement, control and prompting are carrying out that can be real-time, namely at any time tightness is measured and comparison, loosening of bolt 4 can be found so more accurately.But, for common machinery, usually the disengaging of bolt 4 with installation portion 5 can not there is instantaneously, in order to reduce the internal memory shared by the operation of controller 2 program, can consider to arrange the measuring period to tightness, be about to measure change into periodically by measuring in real time, interim measurement, such as arranging measuring period is 5 seconds etc., it is accurate both to meet the measurement of bolt 4, can reduce again the requirement to controller 2 system.
In a specific embodiment provided by the present invention, sensor 1 can be strain gauge, and strain gauge is the sensor type commonly used in dynamics measurement process, is usually arranged on determinand surface, with the STRESS VARIATION of sense object.In this embodiment, be clamped in by strain gauge between bolt 4 and installation portion 5, strain gauge is for measuring the stress value between bolt 4 and installation portion 5.Measured by the stress of applied stress sensor to bolt 4 and installation portion 5 junction in the present embodiment, and the stress value sensed is sent to controller 2, controller 2 can be contrasted by the stress value of default critical stress value and mensuration, if the stress value that contrast measures is less than preset threshold stress value, then bolt 4 is described and to be connected tight ness rating between installation portion 5 low, can judge to be in loosening state, then need transmission information to prompting device 3, control prompting device 3 and carry out alarm.
Needs should be mentioned that, the type of above-mentioned strain gauge can have multiple setting, and wherein a kind of comparatively conventional strain gauge is stress section, and stress section is the simplest device measuring object stress, and due to the small volume of stress section, be easy to be arranged between bolt 4 and installation portion 5.In a specific embodiment provided by the present invention, on the bolt head that stress section is arranged on bolt 4 or be arranged on installation portion 5, and be positioned on position that bolt head and installation portion 5 fit.
The loosening situation of strain gauge to bolt 4 is adopted to measure in the bolt looseness prior-warning device that above-described embodiment provides, the measurement of strain gauge is comparatively accurate, when selected preset critical scope is comparatively accurate, alarm can be realized when bolt 4 initially loosens.Certainly, install and use in process at bolt 4, other sensors also can be adopted to measure, for the environment for use that precise requirements is not high, can distance measuring sensor be adopted.Distance measuring sensor is arranged at bolt 4 and installation portion 5 side, for measuring the relative distance between bolt 4 and installation portion 5.When measurement obtains occurring between bolt 4 and installation portion 5 that gap or gap exceed default critical distance value, controller 2 controls prompting device 3 and carries out alarm.
For the prompting device 3 that each embodiment above-mentioned provides, the type of alarm used under different situations is different, such as comparatively common prompting device 3 can comprise voice guard, can adopt photoelectric alarm or the display for display alarm information in addition in comparatively noisy environment.When being arranged on stirring class vehicle, because environmental noise is comparatively large, so carry out alarm preferably by the display on car body panel board.
All adopt loosening measurement of sensor 1 pair of bolt 4 in the bolt looseness prior-warning device that each embodiment above-mentioned provides, and carry out alarm after appearance loosens.But, for comparatively accurate instrument, bolt 4 can not be allowed to occur situation about loosening, so need, when bolt 4 is about to occur to loosen, to make operating personnel carry out fastening to it.In an embodiment provided by the present invention, be provided with the evaluation module of the variation tendency for real-time statistics tightness information in controller 2, evaluation module is also connected with prompting device 3.Particularly, evaluation module can be the module of in controller 2 for recording, storing and calculate, can by empirical data and calculation procedure write evaluation module, the ability making evaluation module can have calculating, assessment concurrently and control, enables evaluation module control prompting device 3 based on variation tendency and carries out pre-alarm.
In use, evaluation module obtains tightness information that sensor 1 measures in real time and to go forward side by side line item, the variation tendency of tightness information is added up, and estimate out according to variation tendency and current operation conditions the state that bolt 4 is about to appearance, be about to control prompting device 3 when occurring loosening at bolt 4 and carry out pre-alarm.The bolt looseness prior-warning device that the present embodiment provides has the function of pre-alarm, can make the fixing more reliable of bolt 4.
Except the bolt looseness prior-warning device that above-described embodiment provides, the present invention also provides a kind of trucd mixer comprising the open bolt looseness prior-warning device of above-described embodiment, this trucd mixer is provided with reductor 6, reductor 6 is fixed on installation portion 5 by bolt 4, wherein also comprise above-mentioned bolt looseness prior-warning device, sensor 1 is arranged at correspondence position, controller 2 and adaptable other positions being arranged on trucd mixer of prompting device 3 of bolt 4 and installation portion 5.Said apparatus can ensure that the installation of reductor 6 is stablized, and ensures when driving, and reductor 6 can not drop because bolt 4 loosens.The structure of other each several parts of this trucd mixer please refer to prior art, repeats no more herein.
Need it is to be noted that above-mentioned bolt looseness prior-warning device also can be used on trucd mixer that other are provided with the position of bolt 4, further, also can be arranged on Other Engineering mechanically, on the mechanical part that when particularly using, shaking volume is larger.
Except the bolt looseness prior-warning device that above-described embodiment provides, the present invention also provides one to comprise bolt looseness method for early warning disclosed in above-described embodiment, the method comprises: measure the tightness information between the installation portion 5 obtaining bolt 4 and bolt 4, relatively tightness information and preset critical scope, carry out alarm when tightness information exceeds preset critical scope.The method achieve the measurement to bolt 4 aeration level and alarm, ensure the knowability of the tightness between bolt 4 and installation portion 5.
In the method measured bolt 4 for applied stress sensor, the step measuring the tightness information between the installation portion 5 obtaining bolt 4 and bolt 4 comprises:
Be clamped in by strain gauge between bolt 4 and installation portion 5, measure the stress value obtained between bolt 4 and installation portion 5, stress value is tightness information.
In addition, in the bolt looseness prealarming process of exact instrument, said method also should comprise: real time record tightness information also adds up the variation tendency of tightness information, carries out the pre-alarm loosened bolt 4 based on variation tendency.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
Above a kind of trucd mixer provided by the present invention, bolt looseness prior-warning device and method are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a bolt looseness prior-warning device, it is characterized in that, comprise controller (2) and for measure bolt (4) and described bolt (4) installation portion (5) between the sensor (1) of tightness information, the described tightness information that described controller (2) sends for receiving described sensor (1), and alarm is carried out in control prompting device (3) when described tightness information exceeds preset critical scope.
2. bolt looseness prior-warning device according to claim 1, it is characterized in that, described sensor (1) is the strain gauge for measuring stress value between described bolt (4) and described installation portion (5), and described strain gauge is clamped between described bolt (4) and described installation portion (5).
3. bolt looseness prior-warning device according to claim 2, it is characterized in that, described strain gauge is stress section, on the bolt head that described stress section is arranged on described bolt (4) or be arranged on described installation portion (5), and be positioned on position that described bolt head and described installation portion (5) fit.
4. bolt looseness prior-warning device according to claim 1, it is characterized in that, described sensor (1) is the distance measuring sensor for measuring relative distance between described bolt (4) and described installation portion (5), and described distance measuring sensor is arranged at described bolt (4) and described installation portion (5) side.
5. the bolt looseness prior-warning device according to Claims 1-4 any one, is characterized in that, described prompting device (3) comprises voice guard, photoelectric alarm or the display for display alarm information.
6. bolt looseness prior-warning device according to claim 5, it is characterized in that, be provided with the evaluation module for the variation tendency of tightness information described in real-time statistics in described controller (2), described evaluation module is used for controlling described prompting device (3) based on described variation tendency and carries out pre-alarm.
7. a trucd mixer, comprises reductor, it is characterized in that, also comprises the bolt looseness prior-warning device described in claim 1 to 6 any one, and described reductor is fixed on described installation portion (5) by described bolt (4).
8. a bolt looseness detection method, it is characterized in that, comprise: measure the tightness information between the installation portion (5) obtaining bolt (4) and described bolt (4), more described tightness information and preset critical scope, carry out alarm when described tightness information exceeds described preset critical scope.
9. bolt looseness detection method according to claim 8, is characterized in that, the step measuring the tightness information between the installation portion (5) obtaining bolt (4) and described bolt (4) comprises:
Strain gauge is clamped between described bolt (4) and described installation portion (5), measurement obtains the stress value between described bolt (4) and described installation portion (5), and described stress value is described tightness information.
10. bolt looseness detection method according to claim 9, is characterized in that, also comprise: the variation tendency of tightness information described in real-time statistics, carries out the loosening pre-alarm of described bolt (4) based on described variation tendency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510959259.3A CN105427544A (en) | 2015-12-18 | 2015-12-18 | Mixing truck, bolt looseness early-warning device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510959259.3A CN105427544A (en) | 2015-12-18 | 2015-12-18 | Mixing truck, bolt looseness early-warning device and method |
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| CN105427544A true CN105427544A (en) | 2016-03-23 |
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| CN201510959259.3A Pending CN105427544A (en) | 2015-12-18 | 2015-12-18 | Mixing truck, bolt looseness early-warning device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105806579A (en) * | 2016-05-13 | 2016-07-27 | 安庆市津海工业产品设计有限公司 | Stone shaper erection bolt main machine fastening tester |
| CN106054263A (en) * | 2016-08-22 | 2016-10-26 | 杨志强 | Screw loosening monitoring device and system |
| CN106323154A (en) * | 2016-08-12 | 2017-01-11 | 安徽容知日新科技股份有限公司 | Device and system for monitoring loosening of fastening part |
| CN107989880A (en) * | 2017-12-13 | 2018-05-04 | 柳州上丰自动化设备有限公司 | A kind of butterfly bolt that can inform abjection state in real time |
| CN108050144A (en) * | 2017-12-13 | 2018-05-18 | 柳州上丰自动化设备有限公司 | A kind of screw |
| CN110231158A (en) * | 2019-07-05 | 2019-09-13 | 江苏轶一电力科技有限公司 | A kind of steel tower bolt looseness monitoring device |
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| CN110231158A (en) * | 2019-07-05 | 2019-09-13 | 江苏轶一电力科技有限公司 | A kind of steel tower bolt looseness monitoring device |
| CN110231158B (en) * | 2019-07-05 | 2020-09-25 | 江苏轶一电力科技有限公司 | Iron tower bolt looseness monitoring devices |
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