CN216483956U - Hydraulic servo test system for automobile test - Google Patents
Hydraulic servo test system for automobile test Download PDFInfo
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- CN216483956U CN216483956U CN202122457249.3U CN202122457249U CN216483956U CN 216483956 U CN216483956 U CN 216483956U CN 202122457249 U CN202122457249 U CN 202122457249U CN 216483956 U CN216483956 U CN 216483956U
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Abstract
The utility model provides a hydraulic servo test system for an automobile test, which comprises a Taidao controller, a PLC (programmable logic controller), a displacement sensor, a force sensor, an oil distributor, a linear actuator and a servo valve, wherein the displacement sensor, the force sensor and an upper computer are respectively connected with an input end of the Taidao controller through signals, an output end of the Taidao controller is connected with the servo valve through signals, the servo valve is used for driving the linear actuator, the oil distributor is used for switching on/off hydraulic oil of the linear actuator, and the oil distributor is connected with the PLC through signals.
Description
Technical Field
The utility model relates to the technical field of automobile test control, in particular to a hydraulic servo test system for an automobile test.
Background
The test bed based on hydraulic servo drive has been widely used in the whole automobile and part test equipment. The method plays an important role in automobile material test, research and development of novel materials, structural design of product parts and quality monitoring. Because the automobile part test bed based on the hydraulic servo system covers mechanical, hydraulic, electronic, measurement and automatic control, and simultaneously integrates high and new technologies such as a servo closed-loop control technology, digital display, electromechanical integration and an electronic computer technology, the test bed driven by the hydraulic servo has stronger interdisciplinary property and higher design difficulty. With the development of the technology, people have higher and higher requirements on dynamic fatigue tests, so that the research on test beds based on hydraulic servo drive is also paid more and more attention by people.
The American MTS and the American Muge company are mainstream suppliers in the field of high-end hydraulic servo test equipment of automobiles, and mainly carry out fatigue endurance tests on automobile chassis parts and complete automobile road simulation tests. The equipment technology of the two suppliers is seriously blocked, the maintenance difficulty is large, the purchase period of the equipment body and accessories is long, and the price is high; in addition, trade friction between China and the United states frequently occurs in recent years, so that equipment accessories and related technical support are seriously insufficient. Under the condition, in order to prevent the risk of technical neck clamping, an automobile hydraulic servo test system is urgently required to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hydraulic servo test system for automobile tests, which solves the problems in the background technology.
The utility model is realized by the following technical scheme: the utility model provides a hydraulic pressure servo test system for car is experimental, includes Taidao controller, PLC controller, displacement sensor, force transducer, separator, linear actuator, servo valve, displacement sensor, force transducer and host computer respectively with Taidao controller's input signal links to each other, Taidao controller's output with the servo valve signal links to each other, servo valve is used for the drive linear actuator, the separator does linear actuator switches on/shuts off hydraulic oil, the separator with the PLC controller signal links to each other.
Preferably, the hydraulic oil supply is connected with the oil separator, and the oil pressure of the hydraulic oil supply is 3000 PSI.
Preferably, the displacement sensor is arranged at a piston rod of the linear actuator, and feeds back a displacement signal of the piston rod to the tay way controller.
Preferably, the force sensor is arranged at a piston rod of the linear actuator, and the stress magnitude signal of the piston rod is fed back to the tay way controller.
Preferably, the servo valve is arranged between an oil inlet and an oil outlet of the linear actuator and used for adjusting the force application size of the linear actuator.
Compared with the prior art, the utility model has the following beneficial effects:
the hydraulic servo test system for automobile test has the advantages that the Tadao controller is adopted to receive the feedback signal of the sensor and compare the feedback signal with the command signal, the servo valve control signal is given after calculation, the internal sliding valve of the servo valve is driven, the direction and the flow of oil entering the linear actuator are controlled, the piston rod of the actuator moves, and after the piston rod is pressed on an automobile part, force or displacement motion is formed on the part. The Tadao controller can completely replace controllers of American MTS and Muge corporation, the control precision and the response speed all reach the international first-class standard, and the Tadao controller is small, light and high in cost performance, and is an excellent product for replacing the existing controllers.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a structural diagram of a hydraulic servo test system for automobile tests according to the present invention.
In the figure, a Tadao controller 1, a PLC controller 2, a displacement sensor 3, a force sensor 4, an oil separator 5, a linear actuator 6, a servo valve 7, a hydraulic oil source 8 and an upper computer 9 are arranged.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a subset of embodiments of the utility model and not all embodiments of the utility model, with the understanding that the utility model is not limited to the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the utility model described herein without inventive step, shall fall within the scope of protection of the utility model.
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
In order to provide a thorough understanding of the present invention, a detailed structure will be set forth in the following description in order to explain the present invention. Alternative embodiments of the utility model are described in detail below, however, the utility model may be practiced in other embodiments that depart from these specific details.
Referring to fig. 1, a hydraulic servo test system for an automobile test comprises a Taidao controller 1, a PLC controller 2, a displacement sensor 3, a force sensor 4, an oil distributor 5, a linear actuator 6 and a servo valve 7, wherein the displacement sensor 3, the force sensor 4 and an upper computer 9 are respectively connected with an input end signal of the Taidao controller 1, an output end of the Taidao controller 1 is connected with the servo valve 7 through a signal, the servo valve 7 is used for driving the linear actuator 6, the oil distributor 5 is used for turning on/off hydraulic oil for the linear actuator 6, and the oil distributor 5 is connected with the PLC controller 2 through a signal.
In a specific implementation, the linear actuator 6 is an executing element of a hydraulic servo test system and provides displacement or force loading for the test of automobile parts, and the servo valve 7 is installed between the oil inlet and the oil outlet of the linear actuator 6 and is the core of the hydraulic servo system and used for responding to a command signal output by the taylor controller 1 and adjusting the flow direction and the flow rate of a liquid entering the linear actuator 6 from a hydraulic port;
the displacement sensor 3 collects the displacement of a piston rod of the linear actuator 6, feeds the displacement back to the Tadao controller 1, and compares the displacement with a command signal; the force sensor 4 is arranged on a piston rod of the linear actuator 6 and used for collecting the actual force applied to the test piece and feeding the actual force back to the Tadao controller 1; the Tadao controller 1 receives control information from the upper computer 9 and signals fed back by the sensors, and sends command signals to the servo valve 7 after operation to form a control closed loop, so that the control is accurate; the PLC 2 controls the hydraulic oil output of the oil separator 5 to be started or stopped, and outputs low pressure or high pressure.
Further, the system comprises a hydraulic oil source 8, wherein the hydraulic oil source 8 provides stable-pressure hydraulic oil for the action of the whole system, the oil pressure is 3000PSI, and the used hydraulic oil is Mobil DTE 25; the oil separator 5 is disposed between the hydraulic oil source 8 and the linear actuator 6, and supplies high-pressure or low-pressure hydraulic oil to the linear actuator 6 to turn on or off the hydraulic oil.
Further, the displacement sensor 3 is arranged at a piston rod of the linear actuator 6, and feeds back a displacement signal of the piston rod to the tay way controller 1.
Further, the force sensor 4 is arranged at a piston rod of the linear actuator 6, and a stress magnitude signal of the piston rod is fed back to the tay way controller 1.
Further, the servo valve 7 is arranged between an oil inlet and an oil outlet of the linear actuator and used for adjusting the force application size of the linear actuator.
Furthermore, the RMC software is used for setting parameters of the Tadao controller 1, and the RMC software is the configuration software of the Tadao controller 1 and can complete setting, adjustment, diagnosis and programming so as to realize all functions of the multi-axis controller. The method belongs to a general software system platform and meets the diversified use requirements of dual-channel coordination loading.
It should be noted that the PLC controller 2, the displacement sensor 3, the force sensor 4, the oil separator 5, the linear actuator 6, and the servo valve 7 are all common electronic components for those skilled in the art, and those skilled in the art can set specific installation positions and specific models of the corresponding components according to the description of the specification, and this embodiment is not specifically described herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a hydraulic pressure servo test system for automobile test, its characterized in that, including Taidao controller, PLC controller, displacement sensor, force transducer, oil separator, linear actuator, servo valve, displacement sensor, force transducer and host computer respectively with Taidao controller's input signal links to each other, Taidao controller's output with the servo valve signal links to each other, the servo valve is used for the drive linear actuator, the oil separator does linear actuator switches on/shuts off hydraulic oil, the oil separator with PLC controller signal links to each other.
2. The hydraulic servo test system for automobile testing as claimed in claim 1, further comprising a hydraulic oil source, wherein the hydraulic oil source is connected to the oil separator, and the oil pressure of the hydraulic oil source is 3000 PSI.
3. The hydraulic servo test system for automobile test as claimed in claim 1, wherein the displacement sensor is disposed at a piston rod of the linear actuator, and feeds a displacement signal of the piston rod back to the tay-way controller.
4. The hydraulic servo test system for the automobile test as recited in claim 1, wherein the force sensor is disposed at a piston rod of the linear actuator, and a force magnitude signal of the piston rod is fed back to the tay-way controller.
5. The hydraulic servo test system for the automobile test according to claim 1, wherein the servo valve is disposed between the oil inlet and the oil outlet of the linear actuator, and is used for adjusting the force application amount of the linear actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122457249.3U CN216483956U (en) | 2021-10-12 | 2021-10-12 | Hydraulic servo test system for automobile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122457249.3U CN216483956U (en) | 2021-10-12 | 2021-10-12 | Hydraulic servo test system for automobile test |
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| Publication Number | Publication Date |
|---|---|
| CN216483956U true CN216483956U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122457249.3U Active CN216483956U (en) | 2021-10-12 | 2021-10-12 | Hydraulic servo test system for automobile test |
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| Country | Link |
|---|---|
| CN (1) | CN216483956U (en) |
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2021
- 2021-10-12 CN CN202122457249.3U patent/CN216483956U/en active Active
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