CN111551375A - Vehicle body static strength vehicle lifting test system and method - Google Patents
Vehicle body static strength vehicle lifting test system and method Download PDFInfo
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- CN111551375A CN111551375A CN202010619033.XA CN202010619033A CN111551375A CN 111551375 A CN111551375 A CN 111551375A CN 202010619033 A CN202010619033 A CN 202010619033A CN 111551375 A CN111551375 A CN 111551375A
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- vehicle body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a vehicle body static strength vehicle lifting test system and a vehicle body static strength vehicle lifting test method. The system comprises: the device comprises a displacement sensor, a force sensor, a hydraulic cylinder, a hydraulic station, a controller and a connecting tool; the displacement sensor is fixed at the end part of the hydraulic cylinder and is used for acquiring height signals of the hydraulic cylinder during ascending and descending; the force sensor is fixed at the top of the connecting tool; the bottom of the connecting tool is fixed at the top of the hydraulic cylinder; the force sensor is used for acquiring a stress signal of the lifting parking space; the controller is respectively connected with the displacement sensor, the force sensor and the hydraulic station; the hydraulic cylinder is connected with the hydraulic station; the hydraulic cylinders are arranged on the supporting stools of all the lifting parking places; and the controller drives the hydraulic station to perform test control on all the hydraulic cylinders according to the height signal and the stress signal. The invention aims to provide a vehicle body static strength vehicle lifting test system and a vehicle body static strength vehicle lifting test method, which are used for improving the accuracy, automation and safety of a vehicle body static strength vehicle lifting test.
Description
Technical Field
The invention relates to the field of automatic control, in particular to a vehicle body static strength lifting test system and a vehicle body static strength lifting test method.
Background
At present, the static strength of automobile body lifts the car experiment and accomplishes through manual operation, and under the general condition, operating personnel lifts the car experiment at lifting the parking stall through the hand jack, and 4 workman lift up whole automobile body through 4 jacks, require every workman will have good harmony like this, if the harmony is not good, the automobile body takes place to incline, can influence the accuracy of test data, can cause the danger of overturning seriously, causes harm to the personnel.
Disclosure of Invention
The invention aims to provide a vehicle body static strength vehicle lifting test system and a vehicle body static strength vehicle lifting test method, which are used for improving the accuracy, automation and safety of a vehicle body static strength vehicle lifting test.
In order to achieve the purpose, the invention provides the following scheme:
a car test system is lifted to automobile body static strength includes: the device comprises a displacement sensor, a force sensor, a hydraulic cylinder, a hydraulic station, a controller and a connecting tool;
the displacement sensor is fixed at the end part of the hydraulic cylinder and is used for acquiring height signals of the hydraulic cylinder during ascending and descending;
the force sensor is fixed at the top of the connecting tool; the bottom of the connecting tool is fixed to the top of the hydraulic cylinder; the force sensor is used for acquiring a pressure signal of a vehicle body borne by the lifting parking space;
the controller is respectively connected with the displacement sensor, the force sensor and the hydraulic station; the hydraulic cylinder is connected with the hydraulic station; the hydraulic cylinders are arranged on the supporting stools of all the lifting parking places;
and the controller drives the hydraulic station to enable all the hydraulic cylinders to perform test control according to the height signal and the borne vehicle body pressure signal.
Optionally, the number of the parking spaces is 4.
Optionally, the controller is a programmable logic controller.
Optionally, the method further includes: a hex screw;
the bottom of the connecting tool is fixedly connected with the hydraulic cylinder through the hexagon screws.
Optionally, the system further comprises a computer;
the computer is connected with the controller.
A vehicle body static strength vehicle lifting test method is applied to the vehicle body static strength vehicle lifting test system, and comprises the following steps:
acquiring a set height of the lifted vehicle;
lifting the vehicle according to the set height;
acquiring a vehicle body pressure bearing signal and a height signal of each hydraulic cylinder of each lifting parking space in the vehicle lifting process;
judging whether all the borne vehicle body pressure and all the height signals are the same or not;
if the borne vehicle body pressure signals are the same and the height signals are the same, carrying out a vehicle lifting test;
and if the borne vehicle body pressure is different or the height signals are different, stopping the vehicle lifting test.
Optionally, the obtaining of the set height of the lifted vehicle further includes:
acquiring a vehicle lifting speed value;
and carrying out vehicle lifting according to the vehicle lifting speed value.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the vehicle body static strength lifting test system and method provided by the invention, real-time feedback and monitoring are carried out through the force sensor and the displacement meter, the height and the state of the vehicle can be accurately judged, the whole test process is automatically completed, manual operation is not needed in the whole test process, the whole test process is automatically carried out, the test data are accurate and safe, and the inaccurate test data and the rollover danger caused by the uncoordinated actions of people are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a bottom view of a vehicle body static strength lift test;
FIG. 2 is a front view of a static strength lift test of a vehicle body;
FIG. 3 is a schematic structural diagram of a vehicle body static strength lifting test system provided by the invention;
fig. 4 is a schematic structural diagram of a connection mode of the sensor and the oil cylinder and a connection tool provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a vehicle body static strength vehicle lifting test system and a vehicle body static strength vehicle lifting test method, which are used for improving the accuracy, automation and safety of a vehicle body static strength vehicle lifting test.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
During a vehicle body static strength lifting test, four vehicle lifting positions are required on a vehicle body, as shown in fig. 1 and 2, after the vehicle body is lifted to a certain height, stress data of key parts of the vehicle body are collected by a data collection system.
Fig. 3 is a schematic structural diagram of a vehicle body static strength lift test system provided by the present invention, and as shown in fig. 3, the vehicle body static strength lift test system provided by the present invention is characterized by comprising: displacement sensor 1, force sensor 2, pneumatic cylinder 3, hydraulic pressure station 4, controller and connection frock 6.
The displacement sensor 1 is fixed at the end part of the hydraulic cylinder 3, and the displacement sensor 1 is used for acquiring height signals of the hydraulic cylinder 3 during ascending and descending.
The force sensor 2 is fixed at the top of the connecting tool 6; the bottom of the connecting tool 6 is fixed to the top of the hydraulic cylinder 3; the force sensor 2 is used for acquiring a stress signal of the lifting parking space. The bottom of the connecting tool 6 is fixedly connected with the hydraulic cylinder 3 through the hexagon screw 7.
The controller is respectively connected with the displacement sensor 1, the force sensor 2 and the hydraulic station 4; the hydraulic cylinder 3 is connected with the hydraulic station 4; the hydraulic cylinders 3 are arranged on the supporting stools of all the lifting parking places. The number of the parking space is 4, that is, the displacement sensor 1, the force sensor 2, the hydraulic cylinder 3 and the connecting tool 6 are all 4, and as shown in fig. 4.
And the controller drives the hydraulic station 4 to perform test control on all the hydraulic cylinders 3 according to the height signal and the borne vehicle body pressure signal. The controller is a programmable logic controller 5.
The invention provides a vehicle body static strength vehicle lifting test system, which further comprises a computer 7.
The computer 7 is connected with the controller.
According to the vehicle body static strength vehicle lifting test system provided by the invention, the method for completing the vehicle lifting test through real-time monitoring and feedback of the displacement meter of the force sensor 2 and PLC (programmable logic controller) programming automatic control is realized, and manual cooperation is not needed on site.
The invention provides a vehicle body static strength vehicle lifting test method which is applied to a vehicle body static strength vehicle lifting test system and comprises the following steps:
s501, acquiring the set height of the lifted vehicle.
And S502, lifting the vehicle according to the set height.
S503, in the vehicle lifting process, a vehicle body pressure bearing signal of each vehicle lifting space and a height signal of each hydraulic cylinder 3 are obtained.
S504, judging whether all the bearing vehicle body pressure signals are the same as all the height signals.
And S505, if the borne vehicle body pressure signals are the same and the height signals are the same, carrying out a vehicle lifting test.
S506, if the borne vehicle body pressure signals are different or the height signals are different, stopping the vehicle lifting test.
Before S501, the method further includes:
and acquiring a vehicle lifting speed value.
And carrying out vehicle lifting according to the vehicle lifting speed value.
In a specific embodiment, after the preparation work before the test is finished, the test is started, firstly, a vehicle lifting speed value is input through a computer and transmitted to a PLC controller, after the PLC receives a speed signal, a hydraulic station is driven to enable a hydraulic oil cylinder to lift the vehicle according to a given speed, in the vehicle lifting process, a force sensor detects the value of the vehicle body pressure borne by each vehicle lifting position and feeds the value back to the PLC, meanwhile, a displacement meter detects the vehicle body lifting height and gives the PLC, when the vehicle body lifting height reaches a certain height, the vehicle body stops lifting, data acquisition is carried out after the vehicle body is static, and after the data acquisition is finished, the PLC controls the vehicle body to descend back to the.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. The utility model provides a car test system is lifted to car body static strength which characterized in that includes: the device comprises a displacement sensor, a force sensor, a hydraulic cylinder, a hydraulic station, a controller and a connecting tool;
the displacement sensor is fixed at the end part of the hydraulic cylinder and is used for acquiring height signals of the hydraulic cylinder during ascending and descending;
the force sensor is fixed at the top of the connecting tool; the bottom of the connecting tool is fixed to the top of the hydraulic cylinder; the force sensor is used for acquiring a pressure signal of a vehicle body borne by the lifting parking space;
the controller is respectively connected with the displacement sensor, the force sensor and the hydraulic station; the hydraulic cylinder is connected with the hydraulic station; the hydraulic cylinders are arranged on the supporting stools of all the lifting parking places;
and the controller drives the hydraulic station to perform test control on all the hydraulic cylinders according to the height signal and the borne vehicle body pressure signal.
2. The vehicle body static strength vehicle lifting test system as claimed in claim 1, wherein the number of the vehicle lifting slots is 4.
3. The system for testing the static strength of the vehicle body in lifting up according to claim 1, wherein the controller is a programmable logic controller.
4. The vehicle body static strength lift test system according to claim 1, further comprising: a hex screw;
the bottom of the connecting tool is fixedly connected with the hydraulic cylinder through the hexagon screws.
5. The vehicle body static strength lift test system according to any one of claims 1 to 4, wherein the vehicle body static strength lift test system further comprises a computer;
the computer is connected with the controller.
6. A vehicle body static strength lift test method is characterized in that the vehicle body static strength lift test method is applied to the vehicle body static strength lift test system of any one of the claims 1-5, and the vehicle body static strength lift test method comprises the following steps:
acquiring a set height of the lifted vehicle;
lifting the vehicle according to the set height;
acquiring a vehicle body pressure bearing signal and a height signal of each hydraulic cylinder of each lifting parking space in the vehicle lifting process;
judging whether all the borne vehicle body pressure signals are the same as all the height signals or not;
if the borne vehicle body pressure signals are the same and the height signals are the same, carrying out a vehicle lifting test;
and if the borne vehicle body pressure signals are different or the height signals are different, stopping the vehicle lifting test.
7. The vehicle body static strength vehicle lifting test method according to claim 6, wherein the obtaining of the set height of the vehicle lifting further comprises:
acquiring a vehicle lifting speed value;
and carrying out vehicle lifting according to the vehicle lifting speed value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010619033.XA CN111551375A (en) | 2020-07-01 | 2020-07-01 | Vehicle body static strength vehicle lifting test system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010619033.XA CN111551375A (en) | 2020-07-01 | 2020-07-01 | Vehicle body static strength vehicle lifting test system and method |
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| CN111551375A true CN111551375A (en) | 2020-08-18 |
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| CN202010619033.XA Pending CN111551375A (en) | 2020-07-01 | 2020-07-01 | Vehicle body static strength vehicle lifting test system and method |
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2020
- 2020-07-01 CN CN202010619033.XA patent/CN111551375A/en active Pending
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| JPS5371885A (en) * | 1976-12-09 | 1978-06-26 | Tachikawa Spring Co | Device for measuring static strength of rolling stock seat |
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Application publication date: 20200818 |
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