CN113252341B - Enrichment valve performance detection device and detection method - Google Patents
Enrichment valve performance detection device and detection method Download PDFInfo
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- CN113252341B CN113252341B CN202110690892.2A CN202110690892A CN113252341B CN 113252341 B CN113252341 B CN 113252341B CN 202110690892 A CN202110690892 A CN 202110690892A CN 113252341 B CN113252341 B CN 113252341B
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 78
- 238000006073 displacement reaction Methods 0.000 claims abstract description 49
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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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
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a enrichment valve performance detection device and a detection method, wherein the device comprises a controller, a photographing device and a mechanical measuring instrument; the controller is provided with a heating control line electrically connected with the heating element of the enrichment valve; the mechanical measuring instrument is provided with a displacement measuring end and a display part, and the displacement measuring end is fixedly connected with the oil needle of the enrichment valve; the display part is positioned in the photographing range of the photographing device, and the photographing device is electrically connected with the controller; the controller is provided with a time recording module, when the heating element is started to heat, the photographing device is started to photograph to obtain a data image, and meanwhile, the time recording module records photographing time, and the photographing device is provided with an image processing module; the controller also comprises a data processing module which receives the displacement data and the time data and generates a relation curve of the displacement x and the time T. The enrichment valve performance detection device can automatically measure the characteristics of the enrichment valve, eliminate human errors, has high measurement precision and brings great convenience to product debugging.
Description
Technical Field
The invention belongs to the technical field of vehicle accessory production, and particularly relates to a enrichment valve performance detection device and a enrichment valve performance detection method.
Background
The electronic enrichment valve is used for a starting system of the fuel engine, determines the starting performance of the engine and greatly influences the exhaust emission during cold weather. The characteristic of the enrichment valve of each vehicle type needs to be designed in a targeted matching way, which requires the measurement of the working characteristic of the enrichment valve, but the characteristic measurement is difficult.
When the enrichment valve works, the oil needle is always in an action state, the relation between the extending length and the time T is required to be dynamically measured, the displacement precision error is controlled to be 0.01mm, the time is manually measured and recorded while the time is manually measured at present, the measuring error is large, and the operation is inconvenient. At present, the special detection equipment for the enrichment valve is not available in the market, and the characteristics (temperature characteristics, power-on characteristics and recovery characteristics) of the enrichment valve cannot be accurately measured, so that the design of the enrichment valve is difficult.
Therefore, a new technology is needed to solve the problems of large error and inconvenient operation part in the production and detection of the enrichment valve in the prior art.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a device and a method for detecting the performance of a enrichment valve, which can automatically measure the characteristics of the enrichment valve, eliminate human errors, have high measurement precision, are more convenient and bring great convenience to product debugging.
The invention adopts the following technical scheme:
a enrichment valve performance detection device comprises a controller, a photographing device and a mechanical measuring instrument;
the controller is provided with a heating control line electrically connected with the heating element of the enrichment valve and used for controlling the heating action of the heating element;
the mechanical measuring instrument is provided with a displacement measuring end and a display part, wherein the displacement measuring end is fixedly connected with the oil needle of the enrichment valve and is used for measuring the displacement of the oil needle in real time, and the display part displays a displacement measuring result in real time;
the display part is positioned in the photographing range of the photographing device, and the photographing device is electrically connected with the controller; the controller is provided with a time recording module, when the heating element is heated, the photographing device photographs at intervals to obtain data images, meanwhile, the time recording module records photographing time to generate time data, and the photographing device is provided with an image processing module for extracting displacement data from the data images;
the controller also comprises a data processing module which receives the displacement data and the time data and generates a relation curve of the displacement x and the time T.
As a further improvement of the technical proposal of the invention, the heating element is controlled by the controller to perform interval heating when heating;
when the heating element is started to heat, the photographing device photographs and obtains the data image.
As a further improvement of the technical scheme of the invention, the mechanical measuring instrument is a dial indicator and further comprises a fixed bracket, wherein the dial indicator and the enrichment valve are both fixed on the fixed bracket; the needle tip of the oil needle is detached from the needle valve guide sleeve, the measuring head of the dial indicator is fixedly connected with the needle valve guide sleeve, and the measuring head and the needle valve guide sleeve are coaxially arranged.
As a further improvement of the technical scheme of the invention, the shooting part of the shooting device is aligned with the dial plate of the dial indicator.
As a further improvement of the technical scheme of the invention, the photographing device is a smart phone.
As a further improvement of the technical scheme of the invention, the intelligent mobile phone self-timer stand further comprises a wire control type mobile phone self-timer stand, wherein the intelligent mobile phone is arranged on the wire control type mobile phone self-timer stand and is electrically connected with the wire control type mobile phone self-timer stand, and the controller is connected with a self-timer switch of the wire control type mobile phone self-timer stand.
As a further improvement of the technical scheme of the invention, the controller is also provided with a time setting module for setting the heating time interval length and the total test duration of the heating element.
A method for detecting the performance of a enrichment valve comprises the following steps:
s1, connecting a displacement measuring end of a mechanical measuring instrument with an oil needle of a enrichment valve, and aligning a photographing device with a display part of the mechanical measuring instrument;
s2, starting a heating element of the enrichment valve for heating, photographing at intervals, and recording photographing time to obtain data images and time data;
s3, repeating the step S2 until the times required by the test are reached;
s4, extracting displacement data measured on the display part from the data image, and generating a relation curve of the displacement x and the time T by combining the corresponding time data.
As a further improvement of the technical scheme of the present invention, in step S2, the heating of the heating element is intermittent, and when the heating element is started to heat, the photographing device photographs and obtains the data image.
As a further improvement of the technical solution of the present invention, the heating interval length and the total test duration of the heating element in the step S2 may be modified.
Compared with the prior art, the invention has the beneficial effects that:
the performance detection device for the enrichment valve can automatically control the heating element of the enrichment valve to heat at intervals, when the heating is started each time, the mechanical measuring instrument connected with the oil needle can measure the displacement of the oil needle, the photographing device photographs the measuring result of the lower mechanical measuring instrument and records time to obtain time data, after repeated electrifying and heating for many times, the measuring result on the photo is extracted to obtain displacement data through image processing, and then the data processing module combines the displacement data and the time data to generate a relation curve of displacement x and time T. The enrichment valve performance detection device can realize automatic detection of the enrichment valve performance, does not need to record data manually, eliminates human errors, has high measurement accuracy, can rapidly verify the characteristics (temperature characteristics, electrifying characteristics and recovery characteristics) of products, and brings great convenience for product debugging.
Drawings
The technology of the present invention will be described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic diagram showing the overall structure of the present enrichment valve performance detecting apparatus;
FIG. 2 is a schematic illustration of a mechanical gauge coupled to a enrichment valve;
fig. 3 is a schematic diagram of a controller controlling a smart phone through a line-controlled phone self-timer stand.
Reference numerals:
1-a controller; 11-heating control lines;
2-a photographing device;
3-mechanical measuring instrument; 31-a displacement measuring end; 32-a display unit;
4-fixing a bracket;
5-a line control type mobile phone self-timer frame;
6-a enrichment valve; 61-a heating element; 62-needle valve guide sleeve.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present invention. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in the present invention are merely with respect to the mutual positional relationship of the constituent elements of the present invention in the drawings.
Referring to fig. 1 to 3, a enrichment valve performance detecting apparatus includes a controller 1, a photographing device 2, and a mechanical gauge 3.
Wherein the controller 1 is provided with a heating control line 11 electrically connected to the heating element 61 of the enrichment valve 6 for controlling the heating action of the heating element 61. Naturally, an operation switch connected to the controller 1 is also provided, and when the operation switch is pressed, the test can be started. In one embodiment, the controller 1 is a microcomputer time control switch, the microcomputer time control switch is a power switch control device formed by taking a single-chip microprocessor as a core and matching with an electronic circuit and the like, the time setting can be from 1 minute to 168 hours, 1-16 groups can be set each day, the control output can be circularly controlled for multiple time periods, a program is set according to the detection requirement of the enrichment valve 6, when the operation switch is turned on, the time control switch starts timing, the enrichment valve 6 is heated simultaneously, and in this embodiment, the heating of the enrichment valve 6 is continuous.
The mechanical measuring instrument 3 is provided with a displacement measuring end 31 and a display part 32, wherein the displacement measuring end 31 is fixedly connected with the oil needle of the enrichment valve 6 and is used for measuring the displacement of the oil needle in real time, and the display part 32 displays a displacement measuring result in real time. Since the mechanical measuring instrument 3 is employed, the displacement measurement result of which is not in the form of electronic data or electric signals and cannot be directly read by the controller 1, the photographing device 2 is provided.
The display part 32 is located in the photographing range of the photographing device 2, and the photographing device 2 is electrically connected with the controller 1; the controller 1 is provided with a time recording module, when the heating element is heated, the photographing device 2 photographs at intervals to obtain data images, meanwhile, the time recording module records photographing time generation time data, and the photographing device 2 is provided with an image processing module for extracting the displacement data from the data images. By the photographing device 2 automatically photographing and recording time in synchronization at the time of heating so that the data image corresponds to time, the displacement data extracted from the data image corresponds to time, correspondingly.
The controller 1 further comprises a data processing module for receiving the displacement data and the time data and generating a relation curve of the displacement x and the time T. The displacement data is also combined with the time data to generate a displacement x versus time T. Naturally, a memory is provided in correspondence with the photographing device 2 and the controller 1, for storing the displacement data, the time data and the files for recording the relationship curves. Preferably, the photographing device 2 is a smart phone, which is more common, and does not need to increase the cost and purchase special photographing equipment, in which case, the controller 1 can call the memory in the smart phone, so that the memory is not purchased additionally, and the cost is further reduced. The invention breaks through the inherent thinking, combines the industrial articles with the living articles, applies the most commonly used smart phone to industry, fully exerts the powerful functions of the smart phone, integrates the advantages of high precision of the industrial articles and convenience of using the living articles, is very convenient to use, and achieves unexpected effects.
The enrichment valve performance detection device can realize automatic detection of the performance of the enrichment valve 6, does not need manual data recording, eliminates human errors, has high measurement accuracy, can rapidly verify the characteristics (temperature characteristics, electrifying characteristics and recovery characteristics) of products, and brings great convenience for product debugging.
Preferably, the heating element is controlled by the controller 1 to perform interval heating when heating, and of course, the duration of each heating is equal, the duration is the heating duration when the heating valve works, and the interval simulates the interval during the working of the heating valve; when the heating element is started to heat, the photographing device 2 photographs and obtains the data image. I.e. the heating elements are heated at intervals during the test, which more corresponds to the actual working state of the enrichment valve 6, so that the detection result is more reliable. The interval photographing of the photographing device 2 is performed by heating the heating element at intervals, so that only photographs are taken when the photographing device is heated, photographs are not taken when the photographing device is not heated, and the pressure of the storage space required by the photographing device 2 is reduced.
Specifically, the mechanical measuring instrument 3 is a dial indicator, and further comprises a fixed bracket 4, wherein the dial indicator and the enrichment valve 6 are both fixed on the fixed bracket 4; the needle tip of the oil needle is detached from the needle valve guide sleeve 62 so as to be convenient for connecting a dial indicator, a measuring head of the dial indicator is fixedly connected with the needle valve guide sleeve 62, and the measuring head and the needle valve guide sleeve 62 are coaxially arranged so as to ensure that the displacement can be sensitively and directly measured.
Specifically, the photographing part of the photographing device 2 aligns with the dial of the dial indicator, so that the photographed picture contains information on the dial, and the pointer position (i.e. the displacement of the needle valve guide sleeve 62) on the dial is recorded, so that the displacement data can be conveniently derived through the image processing module.
Correspondingly, the enrichment valve performance detection device further comprises a line control type mobile phone self-timer frame 5, wherein the intelligent mobile phone is installed on the line control type mobile phone self-timer frame 5 and is electrically connected with the line control type mobile phone self-timer frame 5, and the controller 1 is connected with a self-timer switch of the line control type mobile phone self-timer frame 5. The line control type mobile phone self-timer stand 5 can be connected with the intelligent mobile phone through an earphone wire and control photographing, and the controller 1 controls the on-off of a self-timer switch of the line control type mobile phone self-timer stand 5 to perform photographing operation. In one embodiment, the controller 1 is connected with a relay, the relay is connected with a self-timer switch of the control line-controlled mobile phone self-timer stand 5, when photographing is needed, the controller 1 sends out a signal, the relay is electrified to enable the self-timer switch of the control line-controlled mobile phone self-timer stand 5 to be closed and electrified, and the smart phone photographs.
In the existing endurance test of the enrichment valve 6, the endurance is realized by long-time voltage stabilization and energization, and when the enrichment valve 6 actually works, the voltage is intermittently switched on and off, so that the result of the endurance test is inaccurate. In order to solve the problem, the controller 1 of the present invention is further provided with a time setting module for setting the heating time interval of the heating element 61 and the total test duration, by setting the time interval, the heating start of the heating element 61 of the enrichment valve 6 is intermittent (i.e. intermittent power on), which accords with the intermittent voltage of the enrichment valve 6 when in actual working, and the total test duration is set, so that the enrichment valve performance detecting device can be suitable for the endurance test of the enrichment valve 6, and the test result is more accurate.
A method for detecting the performance of a enrichment valve 6 comprises the following steps:
s1, connecting a displacement measuring end 31 of the mechanical measuring instrument 3 with an oil needle of the enrichment valve 6, and aligning a display part 32 of the mechanical measuring instrument 3 by using the photographing device 2. Namely, the enrichment valve 6 is installed on the fixed support 4, the corresponding line is connected well, the needle tip of the oil needle is removed, the dial indicator is installed on the fixed support 4, the dial indicator is fixedly connected with the needle valve guide sleeve 62 well, the smart phone is installed on the on-line control type mobile phone self-timer stand 5, the line is connected well, the smart phone enters a photographing interface, and the adjustment angle is aligned with the dial plate of the dial indicator.
S2, starting a heating element 61 of the enrichment valve 6 to heat, photographing at intervals, and recording photographing time to obtain data images and time data; the control switch is pressed down, the heating element 61 of the enrichment valve 6 is electrified and heated, the oil needle of the enrichment valve 6 is displaced and is measured by the dial indicator, the pointer of the dial indicator rotates, and meanwhile, the controller 1 controls the intelligent mobile phone to take a picture by the line control type mobile phone self-timer stand 5, and a picture of a dial after the pointer rotates is taken. Here, the heating of the heating element 61 may be continuous heating or may be intermittent heating. Preferably by heating at intervals.
S3, repeating the step S2 until the required test times are reached.
S4, extracting displacement data measured on the display part 32 from the data image, and generating a relation curve of the displacement x and the time T by combining the corresponding time data. The intelligent mobile phone is internally provided with an APP for processing pictures, the APP can automatically identify data when the pointer points to the position on the dial photo, derive the data and integrate the data with time data to generate a relation curve of displacement x and time T. The designer then sets the PTC formulation of the heating element 61 through the curve described above to control the speed of the needle extension and ensure acceptable vehicle starting performance and exhaust emissions.
Preferably, in step S2, the heating of the heating element is intermittent, and when the heating element is started to heat, the photographing device photographs and obtains the data image. I.e. the heating elements are heated at intervals during the test, which more corresponds to the actual working state of the enrichment valve 6, so that the detection result is more reliable. The interval photographing of the photographing device 2 is performed by heating the heating element at intervals, so that only photographs are taken when the photographing device is heated, photographs are not taken when the photographing device is not heated, and the pressure of the storage space required by the photographing device 2 is reduced.
Preferably, the heating interval length and the total test duration of the heating element 61 in the step S2 may be modified, and by modifying the interval time, the endurance test may be performed.
Other contents of the enrichment valve performance detection device of the present invention refer to the prior art, and are not described herein.
The present invention is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present invention are within the scope of the technical proposal of the present invention.
Claims (1)
1. The enrichment valve performance detection method is characterized by being based on an enrichment valve performance detection device, wherein the enrichment valve performance detection device comprises an enrichment valve performance detection device controller, a photographing device and a mechanical measuring instrument;
the controller is provided with a heating control line electrically connected with the heating element of the enrichment valve and used for controlling the heating action of the heating element; the mechanical measuring instrument is provided with a displacement measuring end and a display part, wherein the displacement measuring end is fixedly connected with the oil needle of the enrichment valve and is used for measuring the displacement of the oil needle in real time, and the display part displays a displacement measuring result in real time; the mechanical measuring instrument is a dial indicator, the enrichment valve performance detection device further comprises a fixed bracket, and the dial indicator and the enrichment valve are both fixed on the fixed bracket; the needle tip of the oil needle is detached from the needle valve guide sleeve, the measuring head of the dial indicator is fixedly connected with the needle valve guide sleeve, and the measuring head is coaxially arranged with the needle valve guide sleeve; the display part is positioned in the photographing range of the photographing device, and the photographing device is electrically connected with the controller; the controller is provided with a time recording module, when the heating element is heated, the photographing device photographs at intervals to obtain data images, meanwhile, the time recording module records photographing time to generate time data, and the photographing device is provided with an image processing module for extracting displacement data from the data images; the controller also comprises a data processing module which receives the displacement data and the time data and generates a relation curve of displacement x and time T; the photographing device is a smart phone; the enrichment valve performance detection device further comprises a line control type mobile phone self-timer frame, the intelligent mobile phone is arranged on the line control type mobile phone self-timer frame and is electrically connected with the line control type mobile phone self-timer frame, and the controller is connected with a self-timer switch of the line control type mobile phone self-timer frame;
the enrichment valve performance detection method comprises the following steps:
s1, connecting a displacement measuring end of a mechanical measuring instrument with an oil needle of a enrichment valve, and aligning a photographing device with a display part of the mechanical measuring instrument;
s2, starting a heating element of the enrichment valve for heating, photographing at intervals, and recording photographing time to obtain data images and time data; the heating of the heating element is interval heating, and when the heating element starts heating, the photographing device photographs to obtain the data image; the heating interval length and the total test duration of the heating element can be modified;
s3, repeating the step S2 until the times required by the test are reached;
s4, extracting displacement data measured on the display part from the data image, and generating a relation curve of the displacement x and the time T by combining the corresponding time data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110690892.2A CN113252341B (en) | 2021-06-22 | 2021-06-22 | Enrichment valve performance detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110690892.2A CN113252341B (en) | 2021-06-22 | 2021-06-22 | Enrichment valve performance detection device and detection method |
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| CN113252341B true CN113252341B (en) | 2024-04-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066501A (en) * | 1991-05-07 | 1992-11-25 | 成都科技大学 | Microcomputor detecting device for linear displacement character of governor valve |
| CN206638147U (en) * | 2017-02-28 | 2017-11-14 | 河海大学 | A kind of dial gauge data collecting system for being used to measure the deformation of member and displacement |
| CN107462160A (en) * | 2017-06-15 | 2017-12-12 | 交通运输部公路科学研究所 | A kind of method and device for being used to calibrate image method displacement measuring instrument |
| CN207066404U (en) * | 2017-05-17 | 2018-03-02 | 上海筑邦测控科技有限公司 | A kind of strain transducer based on image recognition |
-
2021
- 2021-06-22 CN CN202110690892.2A patent/CN113252341B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066501A (en) * | 1991-05-07 | 1992-11-25 | 成都科技大学 | Microcomputor detecting device for linear displacement character of governor valve |
| CN206638147U (en) * | 2017-02-28 | 2017-11-14 | 河海大学 | A kind of dial gauge data collecting system for being used to measure the deformation of member and displacement |
| CN207066404U (en) * | 2017-05-17 | 2018-03-02 | 上海筑邦测控科技有限公司 | A kind of strain transducer based on image recognition |
| CN107462160A (en) * | 2017-06-15 | 2017-12-12 | 交通运输部公路科学研究所 | A kind of method and device for being used to calibrate image method displacement measuring instrument |
Non-Patent Citations (1)
| Title |
|---|
| 等真空膜片化油器启动加浓阀的结构和测试方法;晏飞;摩托车信息(第18期);24-25 * |
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