CN209756933U - Lifting safety monitoring device of dumper - Google Patents
Lifting safety monitoring device of dumper Download PDFInfo
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- CN209756933U CN209756933U CN201920018294.9U CN201920018294U CN209756933U CN 209756933 U CN209756933 U CN 209756933U CN 201920018294 U CN201920018294 U CN 201920018294U CN 209756933 U CN209756933 U CN 209756933U
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Abstract
A lifting safety monitoring device of a dumper comprises four large components, namely an angle sensor, an oil pressure sensor, a central control device and a cab display device; the oil pressure sensor is arranged at the position of an oil port of the hydraulic oil cylinder and used for collecting oil pressure; the angle sensor is arranged above the turnover shaft and at the center of the abdomen of the carriage and used for collecting the carriage angle; by adopting the lifting safety monitoring device of the dumper, on one hand, the lifting angle and the side inclination angle of the carriage can be monitored in real time, the pressure of an oil way can be monitored in real time, comprehensive analysis and evaluation are carried out by combining the weight of goods, the lifting abnormity of the carriage is identified, and the possible side turning accident is predicted; on the other hand, the cargo loading weight of the vehicle can be calculated, the overload is prompted, the operation weight is counted, and a maintenance suggestion is provided for a vehicle lifting system; the weighing device has the characteristics of simultaneous weighing and weight control, high efficiency, remote monitoring and good accuracy.
Description
Technical Field
The utility model belongs to the technical field of the tipper, concretely relates to tipper lifts safety monitoring device.
background
the dumper lifting safety monitoring device is mainly divided into two parts, namely a weighing part and two main modes: one method is that the loaded vehicle is driven to a fixed wagon balance to be weighed, and then the self weight of the vehicle is subtracted, the weighing mode needs to be driven to a fixed metering station to weigh the goods, the weighing and the weight control cannot be carried out during loading, the efficiency is low, and the remote monitoring and management cannot be carried out; and the other method is to install a pressure sensor between the boxcar and the chassis girder to monitor the weight, and the method can monitor the weight of the boxcar in real time, but has the defects of large error and easy damage. And the body state monitoring part mainly adopts an angle meter arranged at the bottom of the carriage body of the dump truck, and the mode only monitors the side-tipping angle to prevent side-tipping, can not carry out comprehensive analysis and evaluation on the weight of the carriage body and the lifting angle, and has poor accuracy.
Disclosure of Invention
For overcoming the not enough of above-mentioned prior art, the utility model aims at providing a tipper lifts safety monitoring device is applicable to the leading hydraulic cylinder of self-discharging bicycle or self-discharging semitrailer and lifts, has the characteristics that weigh simultaneously and control weight, efficient, remote monitoring, accuracy are good.
In order to achieve the above object, the utility model adopts the following technical scheme: a lifting safety monitoring device of a dumper comprises an angle sensor, an oil pressure sensor, a central control device and a cab display device; the angle sensor is fixed at the center of the bottom of the carriage through an angle sensor bracket and is positioned above the turnover shaft and the lower cross beam; the angle sensor collects the lifting and the side inclination angle of the carriage; the oil pressure sensor is arranged at an oil port of the hydraulic oil cylinder and between the oil inlet and the oil pipe; the oil pressure sensor is fixedly connected with the straight joint and the conversion joint through the conversion joint and collects oil pressure; the angle sensor and the oil pressure sensor are connected with the central control device through a wiring harness assembly arranged on the vehicle body.
The angle sensor adopts a mature industrial grade MEMS accelerometer, changes of a static gravity field are converted into inclination angle changes, and the included angle between a measuring shaft and a horizontal plane is output in a digital form.
The oil pressure sensor adopts a high-performance silicon piezoresistive pressure oil-filled core body.
the central control device adopts the design of professional automobile-level components and parts, CAN gather the signal that angle sensor and oil pressure sensor sent and calculation processing, communicate with the reality device through the CAN bus.
The cab display device adopts a high-definition 5-inch TFT screen for display; the cab display device is also internally provided with a GPS module and a GPRS remote communication module.
The method for monitoring by using the dumper lifting safety monitoring device comprises the following steps of:
Step 1, fixing an angle sensor at the center of the bottom of a carriage through an angle sensor bracket and above a turnover shaft and a lower cross beam; the oil pressure sensor is arranged at an oil port of the hydraulic oil cylinder and between the oil inlet and the oil pipe; the angle sensor and the oil pressure sensor are connected with the central control device through a wiring harness assembly arranged on the vehicle body;
Step 2, the angle sensor and the oil pressure sensor transmit acquired digital signals to a central control device through a wire harness assembly arranged on a vehicle body for processing and calculation to obtain oil pressure information, cargo weight information, carriage state information, cargo clamping stagnation and carriage door abnormity alarm information;
Step 3, the central control device sends the information obtained in the step 2 to a cab display device; on one hand, the cab display device displays the cargo weight after comprehensive processing and calculation in real time and gives an alarm for overload information; on the other hand, the lifting and roll inclination angle of the vehicle and the oil pressure information are displayed in real time, and the lifting abnormity and the rollover potential safety hazard of the vehicle are warned; in addition, the cab display device also counts and stores vehicle position information, operation weight and safety state, and transmits the information to the background server in real time through the GPRS remote communication module, so that the motorcade can be managed more accurately.
the utility model has the advantages that:
Compared with the prior art, the utility model has the advantages of realizing the real-time weighing of the goods in the carriage and overcoming the inconvenience of getting on the wagon balance due to the adoption of the oil pressure sensor of the high-performance silicon piezoresistive pressure oil-filled core and the combination of the special goods weight algorithm, thereby having the advantages of convenient and fast weighing; because a high-precision angle sensor based on earth gravity is adopted, and rollover hidden dangers are analyzed by combining a large amount of rollover statistical data, the lifting safety state of the carriage can be prepared to be analyzed and predicted, so that the method has the advantages of accurate early warning and advance, and can effectively prevent lifting rollover; the potential hazards of no opening of a box door and clamping stagnation of goods existing in the lifting process can be effectively identified due to the combination of a large number of curves of oil pressure change in the lifting process, and the early warning method has the advantages of accuracy in early warning and high efficiency; the utility model is suitable for an adopt bicycle or semi-mounted engineering self-discharging vehicle that leading hydro-cylinder lifted.
Adopt the utility model discloses, can obtain hydro-cylinder oil pressure data in real time, carriage angle data, goods weight data, lift safety assessment data, operation statistical data, information such as dimension guarantor's warning data, make the tipper can be convenient at any time carry cargo weight by oneself, the realization lifts the state monitoring of process to the carriage, the prevention is turned on one's side, the discernment glues unusual situation such as railway carriage or compartment door does not open or goods jamming, be equipped with GPS device and GPRS remote communication device simultaneously, the realization lifts the control and the management of safe state to the tipper.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an installation schematic diagram of the oil pressure sensor of the present invention.
Fig. 3 is a schematic view of the installation of the angle sensor of the present invention.
Detailed Description
the structure and operation of the present invention will be described in detail with reference to the accompanying drawings.
referring to fig. 1, 2 and 3, a lifting safety monitoring device of a dump truck comprises four large components, namely an angle sensor 1, an oil pressure sensor 2, a central control device 3 and a cab display device 4; the angle sensor 1 is fixed at the center of the bottom of the carriage 5 through an angle sensor bracket 7 and is positioned above the turnover shaft 6 and the lower cross beam 8; the angle sensor 1 acquires the lifting and side-tipping angles of the carriage; the oil pressure sensor 2 is arranged at an oil port of the hydraulic oil cylinder and between the oil inlet 9 and the oil pipe 13; the oil pressure sensor 2 is fixedly connected with the straight joint 10 and the conversion joint 12 through the conversion joint 12, and the oil pressure sensor 2 collects oil pressure; the angle sensor 1 and the oil pressure sensor 2 are connected with a central control device 3 through a wiring harness assembly arranged on a vehicle body; the angle sensor 1 and the oil pressure sensor 2 transmit signals to a central control device 3 through a wiring harness assembly arranged on a vehicle body to carry out comprehensive processing and calculation; the central control device 3 sends information to the cab display device 4; on one hand, the cab display device 4 displays the cargo weight after comprehensive calculation in real time and gives an alarm for overload information; and on the other hand, the lifting and roll inclination angle of the vehicle and the oil pressure information are displayed in real time, and the lifting abnormity and the rollover potential safety hazard of the vehicle are warned. In addition, the cab display device 4 still makes statistics of and stores vehicle position information, operation weight and safety state, and the cab display device 4 transmits the vehicle position information, operation weight and safety state to the background in real time through a built-in GPRS remote communication module, so that the fleet can be managed more accurately.
The angle sensor 1 is based on the principle of earth gravity, adopts a mature industrial-grade MEMS accelerometer, outputs the included angle between a measuring shaft and a horizontal plane in a digital form by converting the change of a static gravity field into the change of an inclination angle, and has the characteristics of low cost, strong anti-interference capability, small temperature drift and convenient installation;
The oil pressure sensor 2 adopts a high-performance silicon piezoresistive pressure oil-filled core body, an internal special oil collecting circuit converts millivolt signals of the sensor into current signals and outputs the current signals to the control box.
The central control device 3 adopts the design of professional automobile-level components and parts, CAN collect and calculate signals sent by an angle sensor and an oil pressure sensor, communicates with a real device through a CAN bus, and has the advantages of high operation processing speed, high reliability, good anti-interference performance, low power consumption and the like.
The cab display device 4 adopts a high-definition 5-inch TFT screen for display, real-time display of various parameter values of the sensor is realized, dynamic running track display of a simulated carriage is realized, power failure storage of important parameters such as lifting times, lifting weight and the like is realized, and various alarm points and parameters can be inquired and derived through a TF card; the cab display device 4 is also internally provided with a GPS module and a GPRS remote communication module.
By adopting the weighing scheme, the oil pressure when the carriage is lifted is measured by the oil pressure sensor arranged at the oil port of the oil cylinder, the lifting angle and the side-tipping angle of the carriage are measured by the angle sensor, the lifting angle and the side-tipping angle are transmitted to the central control device by the signal transmission line, and the central control device processes and calculates the two groups of received signals.
Firstly, combining oil hydraulic pressure with the cylinder diameter of an oil cylinder to obtain the lifting force of the oil cylinder required by lifting a cargo carriage; then, the weight of the carriage body is preliminarily calculated by combining the installation size of the oil cylinder, the length size of the carriage and the rear overhang size; secondly, compensating the weight of the carriage body by adding two groups of data of carriage lifting and side inclination angle to obtain the corrected weight of the carriage body; and finally, subtracting the self weight of the calibrated carriage from the weight of the carriage body to obtain the weight of the goods in the carriage body.
By adopting the carriage state monitoring scheme, the angle sensor arranged above the turnover shaft and at the center of the belly of the carriage transmits the obtained digital signals to the central control device through the signal transmission line, the central control device analyzes the safety condition of the vehicle in the lifting process by combining the pressure of the oil cylinder, and alarms to prompt a driver to stop the operation and check the potential safety hazard of the vehicle when the vehicle is predicted to be overturned,
The specific analysis scheme is as follows: the method comprises the steps of measuring carriage lifting and roll inclination in real time in the lifting process, setting different roll inclination threshold values for different cargo weights, and alarming when the actual roll inclination exceeds the threshold values to warn that rollover is possible; in addition, in the whole lifting process, the pressure change of the oil cylinder is monitored in real time, the pressure change is compared with an experience change curve in real time, when abnormality is detected, an alarm is given, abnormal unloading is prompted, a driver is prompted to stop working, and potential hazards such as adhesion of a compartment or clamping stagnation of a compartment door or fault of a hydraulic system can be detected.
the cargo weight and the vehicle body state information measured by the scheme can be stored in the cab display device in real time, uploaded to the background in real time through the GPRS and uploaded to the background through the GPS, and the position of the vehicle can be uploaded to the background through the GPS, so that the vehicle fleet can be accurately managed and checked conveniently.
The utility model discloses a theory of operation is: the hydraulic pressure when the carriage lifts is measured through an oil pressure sensor arranged at an oil port of the oil cylinder, the carriage lifting angle and the side-tipping angle are measured through an angle sensor, the carriage lifting angle and the side-tipping angle are transmitted to a central control device through a signal transmission line, and the central control device processes and calculates two groups of received signals. Firstly, combining oil hydraulic pressure with the cylinder diameter of an oil cylinder to obtain the lifting force of the oil cylinder required by lifting a cargo carriage; then, the weight of the carriage body is preliminarily calculated by combining the installation size of the oil cylinder, the length size of the carriage and the rear overhang size; secondly, compensating the weight of the carriage body by adding two groups of data of carriage lifting and side inclination angle to obtain the corrected weight of the carriage body; and finally, subtracting the self weight of the calibrated carriage from the weight of the carriage body to obtain the weight of the goods in the carriage body. The method comprises the steps of measuring carriage lifting and roll inclination in real time in the lifting process, setting different roll inclination threshold values for different cargo weights, and alarming when the actual roll inclination exceeds the threshold values to warn that rollover is possible; in addition, in the whole lifting process, the pressure change of the oil cylinder is monitored in real time, the pressure change is compared with an experience change curve in real time, when abnormality is detected, an alarm is given, abnormal unloading is prompted, a driver is prompted to stop working, and potential hazards such as adhesion of a compartment or clamping stagnation of a compartment door or fault of a hydraulic system can be detected.
The method for monitoring by using the dumper lifting safety monitoring device comprises the following steps of:
Step 1, fixing an angle sensor 1 at the center of the bottom of a carriage 5 through an angle sensor bracket 7 and locating above a turnover shaft 6 and a lower cross beam 8; the oil pressure sensor 2 is arranged at an oil port of the hydraulic oil cylinder and between the oil inlet 9 and the oil pipe 13; the angle sensor 1 and the oil pressure sensor 2 are connected with a central control device 3 through a wiring harness assembly arranged on a vehicle body;
Step 2, the angle sensor 1 and the oil pressure sensor 2 transmit acquired digital signals to a central control device 3 through a wire harness assembly arranged on a vehicle body for processing and calculation to obtain oil pressure information, cargo weight information, carriage state information, cargo clamping stagnation and carriage door abnormity alarm information;
Step 3, the central control device 3 sends the information obtained in the step 2 to a cab display device 4; on one hand, the cab display device 4 displays the cargo weight after comprehensive processing and calculation in real time and gives an alarm for overload information; on the other hand, the lifting and roll inclination angle of the vehicle and the oil pressure information are displayed in real time, and the lifting abnormity and the rollover potential safety hazard of the vehicle are warned; in addition, cab display device 4 still makes statistics of vehicle position information, operation weight, security status, and storage, and cab display device 4 transmits information for backend server through GPRS remote communication module in real time, makes things convenient for the more accurate management of motorcade.
The calculation of the cargo weight information specifically comprises the following steps:
firstly, obtaining the lifting force of the oil cylinder required for lifting a cargo carriage according to the maximum sectional area in the oil cylinder and F ═ PS (pressure intensity) by using the oil pressure;
Secondly, preliminarily calculating the weight of the carriage body according to a lever balance principle by combining the installation size of the oil cylinder, the length size of the carriage and the rear overhang size;
Thirdly, correcting by adding two groups of data of carriage lifting and side inclination angle to obtain the carriage weight;
And finally, subtracting the self weight of the calibrated carriage from the weight of the carriage body to obtain the weight of the goods in the carriage body.
The carriage state information comprises the following steps:
The angle sensor transmits the inclination angle signal to the central control device through the signal transmission line, the central control device analyzes the safety condition of the vehicle in the lifting process by combining the pressure of the oil cylinder, and when the vehicle is predicted to be likely to turn over, the cab display device gives an alarm to prompt a driver to stop working and check the potential safety hazard of the vehicle.
the method for analyzing the safety condition in the vehicle lifting process specifically comprises the following steps:
The method comprises the steps of measuring carriage lifting and roll inclination in real time in the lifting process, setting different roll inclination threshold values for different cargo weights, and alarming when the actual roll inclination exceeds the threshold values to warn that rollover is possible;
in the whole lifting process, the oil pressure sensor monitors the pressure change of the oil cylinder in real time, the pressure change is compared with an experience change curve in real time, when abnormality is detected, an alarm is given, the abnormal unloading is prompted, a driver is prompted to stop working, and the potential danger of car adhesion or car door clamping stagnation or hydraulic system fault is detected.
cargo weight information and carriage state information, but real-time storage is inside driver's cabin display device to upload to the backstage in real time through the inside GPRS module of driver's cabin display device, in addition the inside GPS module of driver's cabin display device is with transmitting the backstage in the position, conveniently carry out accurate management, examination to the motorcade.
Claims (5)
1. a lifting safety monitoring device of a dumper is characterized by comprising an angle sensor (1), an oil pressure sensor (2), a central control device (3) and a cab display device (4); the angle sensor (1) is fixed at the center of the bottom of the carriage (5) through an angle sensor bracket (7) and is positioned above the turnover shaft (6) and the lower cross beam (8); the angle sensor (1) collects the lifting and side-tipping angles of the carriage; the oil pressure sensor (2) is arranged at an oil port of the hydraulic oil cylinder and between the oil inlet (9) and the oil pipe (13); the oil pressure sensor (2) is fixedly connected with the straight joint (10) and the conversion joint (12) through the conversion joint (12), and the oil pressure sensor (2) collects oil pressure; the angle sensor (1) and the oil pressure sensor (2) are connected with the central control device (3) through a wiring harness assembly arranged on the vehicle body.
2. The lifting safety monitoring device for the dump truck as claimed in claim 1, wherein the angle sensor (1) adopts a mature industrial grade MEMS accelerometer, and outputs the included angle between the measuring axis and the horizontal plane in a digital form by converting the change of the static gravity field into the change of the inclination angle.
3. The lifting safety monitoring device for the dump truck as claimed in claim 1, wherein the oil pressure sensor (2) adopts a high-performance silicon piezoresistive pressure oil-filled core body.
4. The lifting safety monitoring device for the dump truck as claimed in claim 1, wherein the central control device (3) is designed by adopting professional automobile-level components, CAN collect and calculate signals sent by an angle sensor and an oil pressure sensor, and communicates with a real device through a CAN bus.
5. the lifting safety monitoring device for the dump truck as claimed in claim 1, wherein the cab display device (4) adopts a high-definition 5-inch TFT screen for display; the cab display device (4) is also internally provided with a GPS module and a GPRS remote communication module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920018294.9U CN209756933U (en) | 2019-01-07 | 2019-01-07 | Lifting safety monitoring device of dumper |
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| CN201920018294.9U CN209756933U (en) | 2019-01-07 | 2019-01-07 | Lifting safety monitoring device of dumper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624845A (en) * | 2019-01-07 | 2019-04-16 | 西安正昌电子股份有限公司 | A kind of Tipper Lifting safety monitoring device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624845A (en) * | 2019-01-07 | 2019-04-16 | 西安正昌电子股份有限公司 | A kind of Tipper Lifting safety monitoring device and method |
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