CN118150020A - Extrusion force prevention testing device and method for electric control pneumatic sliding plug door - Google Patents

Extrusion force prevention testing device and method for electric control pneumatic sliding plug door Download PDF

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Publication number
CN118150020A
CN118150020A CN202410489726.XA CN202410489726A CN118150020A CN 118150020 A CN118150020 A CN 118150020A CN 202410489726 A CN202410489726 A CN 202410489726A CN 118150020 A CN118150020 A CN 118150020A
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China
Prior art keywords
sliding plug
testing
plug door
extrusion force
component
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CN202410489726.XA
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Chinese (zh)
Inventor
陈俊
袁彬琦
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CRRC Nanjing Puzhen Co Ltd
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CRRC Nanjing Puzhen Co Ltd
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Priority to CN202410489726.XA priority Critical patent/CN118150020A/en
Publication of CN118150020A publication Critical patent/CN118150020A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The invention discloses an electric control pneumatic sliding plug door extrusion-proof force testing device and a testing method thereof, and relates to the technical field of rail transit testing. The extrusion force testing arrangement is prevented to this automatically controlled pneumatic sliding plug door, includes: a test component; the detection component is connected with the test component; one end of the connecting component is connected with one side, far away from the testing component, of the detecting component; the display terminal is connected with the connecting component far away from one end of the detection component; when the test part is in contact with the electric control pneumatic sliding plug door, the detection part detects the extrusion force on the contacted surface in real time, and the detected extrusion force value is displayed on the display terminal. The invention solves the problems that in the debugging process of the electric control pneumatic sliding plug door, and in the anti-extrusion force test, the pressure gauge has no contact surface corresponding to the anti-extrusion detection standard, for example, the contact surface of a common pressure gauge is a conical head or a hook; the contact area of the European standard extrusion force prevention testing tool (air hammer) is overlarge, the extrusion force prevention testing process is irrelevant to the contact area and is only relevant to the reaction force born by the vehicle door, the reaction force is transmitted to the motor through the mechanical structure, and the strength is detected through the motor, so that the European standard extrusion force prevention testing tool is only applicable to the problem of an electric sliding plug door.

Description

Extrusion force prevention testing device and method for electric control pneumatic sliding plug door
Technical Field
The invention relates to the technical field of rail transit testing, in particular to an electric control pneumatic sliding plug door extrusion-proof force testing device and a testing method thereof.
Background
An electropneumatic sliding plug door is a device that utilizes an electrical control system and a pneumatic actuator to effect opening and closing of the door. Typically, such doors have an electronic control system for controlling the opening and closing of the door and the pneumatic actuator of the door by means of a pneumatic element such as a solenoid valve.
Doors of this type are often used in places where automated control is required, such as rail transit, laboratories, hospitals, etc. They may operate according to a preset schedule, sensor signals, or remote control.
In the debugging process of the electric control pneumatic sliding plug door, the anti-extrusion force test is always a difficult problem. The main difficulty is that the manometer has no contact surface corresponding to the anti-extrusion detection standard. If the contact surface of the common pressure gauge is a conical head or a hook; the contact area of the European standard extrusion force prevention testing tool (air hammer) is overlarge, the extrusion force prevention testing process is irrelevant to the contact area and is only relevant to the reaction force born by the vehicle door, the reaction force is transmitted to the motor through the mechanical structure, and the strength is detected through the motor, so that the European standard extrusion force prevention testing tool is only suitable for an electric sliding plug door. When the electric control pneumatic sliding plug door is acted by the extrusion-proof force, the adhesive tape at the front opening of the door plate deforms to form cavity pressure change, and the extrusion-proof switch is triggered to generate extrusion-proof signals, so that the extrusion-proof force testing device is specially made for the electric control pneumatic sliding plug door structure. In view of the above-mentioned problems, no effective solution has been proposed yet.
Disclosure of Invention
The invention aims to: an anti-extrusion force testing device and a testing method for an electric control pneumatic sliding plug door are provided, so that the problems existing in the prior art are solved.
The technical scheme is as follows: an electropneumatic sliding plug door extrusion-proof force testing device, comprising: a test component; the detection component is connected with the test component; one end of the connecting component is connected with one side, far away from the testing component, of the detecting component; the display terminal is connected with the connecting component far away from one end of the detection component; when the test part is in contact with the electric control pneumatic sliding plug door, the detection part detects the extrusion force on the contacted surface in real time, and the detected extrusion force value is displayed on the display terminal.
Preferably, the test part includes: the contact surface is contacted with the electric control pneumatic sliding plug door, and the non-contact surface is connected with the detection component.
Preferably, the height of the test part is 100mm, and the fillets on two sides are 5mm; wherein the width of the contact surface is 60mm.
Preferably, the detecting component is a pressure detecting sensor, a plurality of connecting holes are respectively formed in two opposite surfaces of the pressure detecting sensor, and the connecting holes are circumferentially arranged with the pressure detecting sensor as a circle center.
Preferably, the pressure detection sensor is provided with connection plates on two opposite surfaces thereof, respectively.
Preferably, a counter bore is formed in the center of the connecting plate, and the counter bore is used for connecting the connecting plate with the pressure detection sensor;
Wherein, the connecting plate is connected with the pressure detection sensor through a connecting piece.
Preferably, the connecting component is a hollow pipe body, a thermoplastic component is sleeved on the outer surface of the hollow pipe body, and a wire harness fixing point is arranged at the end part of the hollow pipe body.
In order to achieve the above object, according to another aspect of the present application, there is also provided a method for testing an anti-extrusion force of an electro-pneumatic sliding plug door.
The application relates to an anti-extrusion force testing method for an electric control pneumatic sliding plug door, which is applied to an anti-extrusion force testing device for the electric control pneumatic sliding plug door, and comprises the following steps:
presetting a sampling frequency;
Collecting data according to a preset sampling frequency, and screening the collected data to determine an effective data collection interval;
Based on the effective data acquisition interval, selecting highest sampling data as a peak value according to a first preset algorithm, and continuously and iteratively updating the peak value; based on the effective data acquisition interval, calculating an average value according to a second preset algorithm, and continuously and iteratively updating the average value according to a third preset algorithm;
And (3) keeping the display function of the peak value and the average effective value of the test on the display terminal, and refreshing the existing data after collecting the new data.
Preferably, the preset sampling frequency includes:
data is acquired by dropping two stages, and the sampling interval time is set to 0.01 microsecond, and the data sampling frequency is set to 100kHz.
Preferably, the step of collecting data according to a preset sampling frequency and screening the collected data to determine an effective data collection interval includes:
And setting the measurement interval to be in an interval from more than 20N after contact to more than 20N before separation, and taking the sampling value in the interval as an effective value.
Preferably, the calculating the average value according to the second preset algorithm based on the effective data collection interval and the iteratively updating the average value according to the third preset algorithm includes:
After the calculated data is displayed as the average effective value, judging whether the average effective value of the next period is larger than the value, if so, updating the average effective value; otherwise, the average effective value remains displayed.
Preferably, the method for keeping the peak value and the average effective value of the test in the display function on the display terminal, refreshing the existing data after collecting the new data, and further comprises:
the duration of the current average effective value is statistically displayed as follows: "effective time of extrusion: * S ".
The beneficial effects are that: in the embodiment of the application, a preset extrusion test structure is adopted, when the test component is in contact with the electric control pneumatic sliding plug door, the extrusion force is detected in real time by the detection component on the contacted surface, and the detected extrusion force value is displayed on the display terminal, so that the aim of easily detecting the extrusion force prevention of the electric control pneumatic sliding plug door is fulfilled, the technical effects of improving the detection precision and the detection efficiency are realized, the technical effects of further solving the problems that in the debugging process of the electric control pneumatic sliding plug door, and in addition, when the extrusion force prevention test is performed, the pressure gauge does not have a contact surface corresponding to an extrusion prevention detection standard, for example, the contact surface of a common pressure gauge is a conical head or a hook; the contact area of the European standard extrusion force prevention testing tool (air hammer) is overlarge, the extrusion force prevention testing process is irrelevant to the contact area and is only relevant to the reaction force born by the vehicle door, the reaction force is transmitted to the motor through the mechanical structure, and the strength is detected through the motor, so that the European standard extrusion force prevention testing tool is only applicable to the technical problem of an electric sliding plug door.
Drawings
FIG. 1 is a schematic diagram of the device for testing the anti-extrusion force of an electropneumatic sliding plug door;
FIG. 2 is a schematic diagram of the detection components of the anti-extrusion force testing device of the electric control pneumatic sliding plug door; and
Fig. 3 is a schematic diagram of the detecting component structure of another device for testing the extrusion force of the electrically controlled pneumatic sliding plug door.
The reference numerals are:
1. A test component; 11. a contact surface; 12. a non-contact surface;
2. a detection section; 21. a connection hole;
3. A connecting member;
4. and displaying the terminal.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, the application relates to an electric control pneumatic sliding plug door extrusion-proof force testing device and a testing method thereof. The extrusion force testing device is prevented to this automatically controlled pneumatic stopper sliding door includes: a test part 1; the test part 1 can be matched with the electric control pneumatic sliding plug door, so that a good matching effect is achieved, and a foundation is provided for accurate detection of other subsequent parts.
A detection part 2 connected with the test part 1; through being provided with detection part 2, can realize good extrusion force detection effect to realize accurate data acquisition effect. Preferably, the detecting means 2 includes, but is not limited to: piezoresistive sensor (piezoelectric sensor): this sensor is based on the piezoelectric effect, i.e. generates an electric charge when pressure is applied; piezoresistive sensors are generally composed of piezoresistors or piezocrystals, which are suitable for measuring static or dynamic pressure.
Piezoelectric sensor: the sensor measures pressure using deformation of the piezoelectric material; piezoelectric sensors typically have high sensitivity and a wide measurement range, and are suitable for applications requiring high accuracy and high frequency response.
Pressure transmitter (pressure sensor): the sensor converts pressure into a standard signal (e.g., a current or voltage signal) for measuring and monitoring pressure changes. Pressure transmitters generally have high accuracy, stability, and reliability and are suitable for pressure monitoring in industrial automation and control systems. By means of various types of sensors for selection, the effect of flexible selection can be achieved.
A connecting part 3, one end of which is connected with one side of the detecting part 2 away from the testing part 1; through being provided with connecting component 3, can realize detecting component 2 and connecting component 3 firm connection effect, simultaneously, can also realize the effect that is connected with other parts to realize the good assembly effect of multipart.
A display terminal 4 connected to the connecting member 3 at an end remote from the detecting member 2; by providing the display terminal 4, a good man-machine effect can be achieved; meanwhile, the real-time data display effect can be realized, so that the visual display effect can be realized.
It should be appreciated that the display terminal 4 and the detecting unit 2 may include, but are not limited to: the electric connection or communication connection mode can ensure good electric signal transmission effect, thereby ensuring stable data transmission effect. Among them, the communication connection modes include, but are not limited to: wiFi, bluetooth, loRa, etc. for communication and data transmission with other devices. Such as: through WiFi connection, the sensor can carry out real-time data transmission and remote monitoring with the display terminal 4 or other equipment, and flexibility and convenience of the system are improved.
Preferably, the display terminal 4 includes, but is not limited to: smart phones and tablet computers, computers and displays or internet of things devices and cloud platforms. A variety of selectable terminal display effects can be achieved.
When the test part 1 is in contact with the electropneumatic sliding plug door, the detection part 2 detects the extrusion force on the contacted surface in real time, and the detected extrusion force value is displayed on the display terminal 4. By adopting the test component 1 provided by the application, good contact and matching effects with the electric control pneumatic sliding plug door can be realized, so that a basis is provided for subsequent accurate detection, the extrusion force is detected on the contacted surface in real time through the detection component 2, corresponding detection data can be obtained, and the detected extrusion force value is displayed on the display terminal 4 in an electric connection or communication connection mode, so that visual display and display effects can be realized.
From the above description, it can be seen that the following technical effects are achieved:
In the embodiment of the application, a preset extrusion test structure is adopted, when the test component 1 is in contact with the electric control pneumatic sliding plug door, the extrusion force is detected in real time through the detection component 2 on the contacted surface, and the detected extrusion force value is displayed on the display terminal 4, so that the aim of easily detecting the extrusion force prevention of the electric control pneumatic sliding plug door is fulfilled, the technical effects of improving the detection precision and the detection efficiency are realized, the technical effects of further solving the problems that in the debugging process of the electric control pneumatic sliding plug door, and in addition, when the extrusion force prevention is tested, the pressure gauge does not have a contact surface 11 corresponding to an extrusion prevention detection standard, for example, the contact surface 11 of a common pressure gauge is a conical head or a hook; the contact area 11 of the European standard extrusion force prevention testing tool (air hammer) is overlarge, the extrusion force prevention testing process is irrelevant to the contact area 11, and is only relevant to the reaction force born by the vehicle door, the reaction force is transmitted to the motor through the mechanical structure, and the strength is detected through the motor, so that the European standard extrusion force prevention testing tool is only applicable to the technical problem of an electric sliding plug door.
Further, the test part 1 includes: a contact surface 11 and a non-contact surface 12 are oppositely arranged, wherein the contact surface 11 is contacted with the electric control pneumatic sliding plug door, and the non-contact surface 12 is connected with the detection part 2. It can be understood that, in order to achieve the effect of sufficient contact, the contact surface 11 is arranged to contact the electro-pneumatic sliding plug door, so that good surface contact and matching effects can be achieved; at the same time, the other side does not need to be in contact with the electro-pneumatic sliding plug door, and is therefore the non-contact surface 12, which is connected to the detecting member 2. Therefore, by distinguishing and presetting the contact surfaces 11, a good mating effect can be achieved, while also achieving the effect of the corresponding function.
Further, the height of the test part 1 is 100mm, and the round angles at two sides are 5mm; wherein the width of the contact surface 11 is 60mm. It will be appreciated that by sizing the test part 1 to the above specifications, a good fit with the electro-pneumatic sliding plug door can be ensured.
Specifically, when the extrusion-preventing function test is performed, a 30mmX60mm (thick X wide) extrusion-preventing tool (four corners are rounded with R5) is adopted according to the standard, the contact surface 11 is a 60mm wide surface, and the actual contact length is the thickness of the door panel 43mm. The contact surface 11 is set to be 60mm wide, rounded 5mm on both sides, and the height is set to be 100mm to ensure that the test is performed normally.
It is known that the test is performed by placing a 30mmX60mm (thick X wide) wood block in any position of the door and the door frame front adhesive tape which is larger than 200mm from the upper edge and the lower edge of the door plate in the width direction. The anti-extrusion function works.
As shown in fig. 2-3, the detecting component 2 is a pressure detecting sensor, and a plurality of connecting holes 21 are respectively formed on two opposite surfaces of the pressure detecting sensor, and the connecting holes 21 are circumferentially arranged with the pressure detecting sensor as a center of a circle. It can be understood that by providing a plurality of connection holes 21 on the two opposite surfaces of the pressure detection sensor, respectively, a good assembly effect with other components can be achieved, thereby ensuring the stability of the structure; wherein, the connecting hole 21 can be a threaded hole, which can realize the effect of easy assembly. Meanwhile, the plurality of connecting holes 21 are circumferentially arranged with the pressure detection sensor as a center, and stable assembly effect can be ensured by adopting a circumferentially arranged mode. Preferably, the screw hole model is M4, which can ensure good connection effect.
Preferably, the number of the plurality of connecting holes 21 is four, the four connecting holes 21 are circumferentially arranged on one side of the pressure detection sensor, and the other side is arranged in a mirror image.
Optionally, the number of the plurality of connecting holes 21 is two, and the two connecting holes 21 are symmetrically arranged.
Further, connecting plates are respectively arranged on two opposite surfaces of the pressure detection sensor. It can be appreciated that by providing the connection plates on both sides of the pressure detection sensor, respectively, a good assembly effect with other components can be achieved, thereby achieving the effect of multiple functions.
Still further, the connecting plate is 60mm 100mm, and thickness is 10mm to be provided with the fillet in both sides 100mm limit department, the fillet is 5mm. A good assembly effect can be ensured.
Further, a counter bore is formed in the center of the connecting plate, and the counter bore is used for connecting the connecting plate with the pressure detection sensor;
Wherein, the connecting plate is connected with the pressure detection sensor through a connecting piece. It can be appreciated that the countersink is formed in the center of the connecting plate, so that the effect of stable connection with other components can be ensured.
Furthermore, the connecting part 3 is a hollow pipe body, a thermoplastic part is sleeved on the outer surface of the hollow pipe body, and a wire harness fixing point is arranged at the end part of the hollow pipe body. It can be understood that through being provided with the hollow body, can realize the effect that supplies other parts to walk through, simultaneously, its both ends can also realize carrying out good assembly effect with multiple part. The hollow pipe body can be a steel pipe or an aluminum pipe, and the like, so that good structural strength can be ensured, and meanwhile, the effect of reducing weight can be realized.
The outer surface of the hollow tube body is sleeved with a thermoplastic component; the thermoplastic material may be a heat shrink, which is a plastic tube material, typically made of polyvinyl chloride (PVC), polyvinyl chloride (PE), or fluoroplastic, etc., having specific physical properties. The main function of the device is to firmly fix the parts covered by the device together through heat shrinkage and provide protection, insulation, sealing and other functions.
The end part of the hollow pipe body is provided with a wire harness fixing point; good restraining and fixing effects can be achieved.
Specifically, the sensor structure is selected: adopting a single pressure tester with DS2-500N-ZT as a basis to carry out secondary development. The technical parameters are two layers of 0 to 500N, the graduation is 0.1N, the single pressure test is carried out, and the sensor is external. As shown in fig. 2, the sensor is provided with threaded holes on both sides. Two steel plates with the thickness of 10mm are respectively arranged on the front side and the back side, the size is 60mm multiplied by 100mm, and round angles of 5mm are formed on the front side and the back side of the sides of 100mm on both sides. And a counter bore with the diameter of 5mm is formed in the center of the steel plate according to the size of the interface and is used for connecting the steel plate with the sensor. The whole steel plate is painted with yellow paint. The connecting screw is an M4×15 hexagon countersunk head machine screw. After the installation is completed, the screw does not protrude from the surface of the steel plate. A section of steel pipe with the length of 150mm and the diameter of 35mm is welded at the middle position of the end head of the bottom steel plate, a heat-shrinkable sleeve is sleeved on the surface of the steel pipe, a sensor penetrates out of the inner side of the steel pipe, a wire harness fixing point is arranged at the end head, and the wire harness is tied up and protected at the fixing point position by using nylon woven net pipes.
Display terminal 4 structure selection: according to Q/CR 498-2016 (railway carriage sliding door technical Condition) 7.2.10b): "maximum peak force Fp of closing door on obstacle is less than or equal to 300N, effective force Fe of first closing door process is less than or equal to 150N, average effective force Fe of further closing door is less than or equal to 200N". Based on the sensor, secondary development is carried out, the terminal is customized again, and peak value and effective force display are realized.
1. The measurement range is set to between 500N.
2. The minimum time of the closing time of the vehicle door is 2s, the maximum stroke is 900mm, and the maximum closing speed is 0.45m/s. The diameter of the 98% testing tool is 14mm, and the thickness of the extrusion-preventing force testing tool is 30mm, so that extrusion prevention needs to be generated within the range of 16mm, and the extrusion-preventing function is shielded after 16 mm. The time for generating the anti-extrusion signal should be 16 mm/0.45 m/s=0.0.36s=36 μs, calculated as the longest distance for which the anti-extrusion signal is generated is 16 mm.
It is necessary to undergo the processes of contact, gradual pressure rise, generation of anti-squeeze signal, generation of door opening action signal (at which time the pressure is at maximum), gradual pressure decrease, mutual detachment, etc. within 36 mus.
The application also relates to a method for testing the extrusion force of the electric control pneumatic sliding plug door, which comprises the device for testing the extrusion force of the electric control pneumatic sliding plug door, and the method comprises the following steps:
S101, presetting a sampling frequency;
Specifically, by presetting the sampling frequency, a large amount of data acquisition effects can be realized.
Further, the preset sampling frequency includes:
data is acquired by dropping two stages, and the sampling interval time is set to 0.01 microsecond, and the data sampling frequency is set to 100kHz. It will be appreciated that since the existing time data is on the order of microseconds, the above arrangement is required to ensure data accuracy.
S102, collecting data according to a preset sampling frequency, and screening the collected data to determine an effective data collection interval;
further, the step of collecting data according to a preset sampling frequency and screening the collected data to determine an effective data collection interval includes:
And setting the measurement interval to be in an interval from more than 20N after contact to more than 20N before separation, and taking the sampling value in the interval as an effective value.
Since the sensor is always free-filled after contact and disengagement, the hand-held yaw rotation affects the base data runout to within 0 or 5. In order to ensure effective value measurement, the measurement interval is set to be in the interval from more than 20N after contact to more than 20N before separation, and the sampling value in the interval is an effective value.
S103, selecting highest sampling data as a peak value according to a first preset algorithm based on an effective data acquisition interval, and continuously and iteratively updating the peak value; based on the effective data acquisition interval, calculating an average value according to a second preset algorithm, and continuously and iteratively updating the average value according to a third preset algorithm;
It should be appreciated that the first preset algorithm may be: traversing the whole data set by using a linear search method to find the maximum value; heap ordering, heap data structures may be used to find the maximum.
The second preset algorithm may be: simple averaging method: all data are added and then divided by the number of data. On-line algorithm: suitable for large-scale data sets or data streaming. The online algorithm may not store all of the data as it is traversed, but rather dynamically update the average based on the traversed data.
The third preset algorithm may be: the simple comparison method comprises the following steps: the comparison operator (e.g., < =, >, > =) is directly used to compare the magnitude of two numbers or determine the magnitude relationship of one number to a threshold. Difference comparison method: the difference between the two numbers is compared, and then the size relation is determined according to the positive and negative of the difference.
Further, the calculating the average value according to the second preset algorithm based on the effective data collection interval and the iteratively updating the average value according to the third preset algorithm includes:
After the calculated data is displayed as the average effective value, judging whether the average effective value of the next period is larger than the value, if so, updating the average effective value; otherwise, the average effective value remains displayed.
Specifically, the highest sample data is selected as the peak value within the effective value range. And if the data is larger than the data, updating the data.
When the calculation time is selected to be the data with a valid value acquisition period, the calculation time is selected to be the data with a valid value acquisition period (specifically, the data is more than 20N and the data is less than 20N again). The calculated data is displayed as an average effective value, updated when the next period is greater than this value, and maintained when not greater than this value.
And S104, keeping the display function of the peak value and the average effective value of the test on the display terminal 4, and refreshing the existing data after collecting the new data.
By keeping the display function of the peak value and the average effective value of the last test on the display terminal 4, the effect of visually displaying the numerical value can be achieved, and at the same time, since it has the hold display, it can be viewed in real time. And the existing data is refreshed after the new data is acquired, so that the effect of continuously refreshing the existing data can be realized, and the accuracy of the display numerical value is ensured.
Further, the step of maintaining the display function of the peak value and the average effective value of the test on the display terminal 4, and refreshing the existing data after collecting the new data, further includes:
the duration of the current average effective value is statistically displayed as follows: "effective time of extrusion: * S ".
Specifically, existing data is refreshed after new data is acquired (refresh rule, higher than refresh, lower than hold).
The invention also has the following beneficial effects:
1. the application effectively solves the problem that the anti-extrusion force test of the electric control pneumatic sliding plug door structure is difficult.
2. The application has simple structure, portability and portability; the detection data is easy to collect, and the test data is accurate.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various equivalent changes can be made to the technical solutions of the present invention within the scope of the technical concept of the present invention, and these equivalent changes all fall within the protection scope of the present invention.

Claims (12)

1. Extrusion force testing arrangement is prevented to automatically controlled pneumatic sliding plug door, its characterized in that includes:
A test part (1);
a detection component (2) connected with the test component (1);
one end of the connecting component (3) is connected with one side of the detecting component (2) away from the testing component (1); and
A display terminal (4) connected to the connecting member (3) at one end far from the detecting member (2);
when the testing component (1) is in contact with the electropneumatic sliding plug door, the detection component (2) detects the extrusion force on the contacted surface in real time, and the detected extrusion force value is displayed on the display terminal (4).
2. The electropneumatic sliding plug door anti-extrusion force test device according to claim 1, characterized in that the test part (1) comprises: and the contact surface (11) is contacted with the electric control pneumatic sliding plug door, and the non-contact surface (12) is connected with the detection part (2).
3. The device for testing the extrusion force prevention of the electropneumatic sliding plug door according to claim 2, characterized in that the height of the testing component (1) is 100mm, and the rounded corners on two sides are 5mm; wherein the width of the contact surface (11) is 60mm.
4. The extrusion force proof testing device for the electric control pneumatic sliding plug door according to claim 1, wherein the detecting component (2) is a pressure detecting sensor, a plurality of connecting holes (21) are respectively formed on two opposite surfaces of the pressure detecting sensor, and the connecting holes (21) are circumferentially arranged with the pressure detecting sensor as a circle center.
5. The device for testing the extrusion force of an electropneumatic sliding plug door according to claim 4, wherein connecting plates are respectively arranged on two opposite surfaces of the pressure detection sensor.
6. The device for testing the extrusion force of the electric control pneumatic sliding plug door according to claim 5, wherein a counter bore is formed in the center of the connecting plate, and the counter bore is used for connecting the connecting plate with a pressure detection sensor;
Wherein, the connecting plate is connected with the pressure detection sensor through a connecting piece.
7. The extrusion force proof testing device of an electric control pneumatic sliding plug door according to claim 1, wherein the connecting component (3) is a hollow pipe body, a thermoplastic component is sleeved on the outer surface of the hollow pipe body, and a wire harness fixing point is arranged at the end part of the hollow pipe body.
8. An electropneumatic sliding plug door extrusion-prevention force testing method, which is applied to an electropneumatic sliding plug door extrusion-prevention force testing device as claimed in any one of claims 1 to 7, and comprises the following steps:
presetting a sampling frequency;
Collecting data according to a preset sampling frequency, and screening the collected data to determine an effective data collection interval;
Based on the effective data acquisition interval, selecting highest sampling data as a peak value according to a first preset algorithm, and continuously and iteratively updating the peak value; based on the effective data acquisition interval, calculating an average value according to a second preset algorithm, and continuously and iteratively updating the average value according to a third preset algorithm;
And (3) keeping the display function of the peak value and the average effective value of the test on the display terminal, and refreshing the existing data after collecting the new data.
9. The method for testing the extrusion force of the electropneumatic sliding plug door according to claim 8, wherein the preset sampling frequency comprises:
data is acquired by dropping two stages, and the sampling interval time is set to 0.01 microsecond, and the data sampling frequency is set to 100kHz.
10. The method for testing the extrusion force prevention of the electric control pneumatic sliding plug door according to claim 8, wherein the steps of collecting data according to a preset sampling frequency and screening the collected data to determine an effective data collection interval include:
And setting the measurement interval to be in an interval from more than 20N after contact to more than 20N before separation, and taking the sampling value in the interval as an effective value.
11. The method for testing the extrusion force of the electric control pneumatic sliding plug door according to claim 8, wherein the calculating the average value according to the second preset algorithm based on the effective data collection interval and the iteratively updating the average value according to the third preset algorithm comprises:
After the calculated data is displayed as the average effective value, judging whether the average effective value of the next period is larger than the value, if so, updating the average effective value; otherwise, the average effective value remains displayed.
12. The method for testing the extrusion force of the electro-pneumatic sliding plug door according to claim 8, wherein the step of maintaining the display function of the peak value and the average effective value of the test on the display terminal and refreshing the existing data after the new data is acquired, further comprises:
the duration of the current average effective value is statistically displayed as follows: "effective time of extrusion: * S ".
CN202410489726.XA 2024-04-23 2024-04-23 Extrusion force prevention testing device and method for electric control pneumatic sliding plug door Pending CN118150020A (en)

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