CN110361189A - A kind of air brake valve detection device and detection method - Google Patents
A kind of air brake valve detection device and detection method Download PDFInfo
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- CN110361189A CN110361189A CN201910668717.6A CN201910668717A CN110361189A CN 110361189 A CN110361189 A CN 110361189A CN 201910668717 A CN201910668717 A CN 201910668717A CN 110361189 A CN110361189 A CN 110361189A
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- 238000001514 detection method Methods 0.000 title claims abstract description 90
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000006073 displacement reaction Methods 0.000 claims abstract description 30
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000002045 lasting effect Effects 0.000 claims abstract description 6
- 230000037452 priming Effects 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
This application involves a kind of air brake valve detection device and detection methods, belong to technical field of automobile accessories, comprising: pedestal；Detection product positioning mechanism, detection product positioning mechanism is for positioning air brake valve；Brake component acts on the spool of air brake valve；Driving mechanism, setting are connect on the base and with brake component；And then drive the spool of air brake valve mobile；Power detection unit, is connected with brake component；Displacement detecting unit, for detecting the displacement of brake component；Its detection method: the preset pressure value in controller records the priming stroke value of brake component；Driving mechanism drives brake component to push air brake valve spool, lasting feeding and controller collection shift value and pressure value, so that pressure value is reached preset value, the shift value of corresponding preset pressure value is idle stroke；It is detected by idle stroke of the detection device to air brake valve, is capable of the actual brake trigger point of accurate judgement air brake valve, idle stroke is avoided to improve the detection accuracy of detection device to the influence of detection device.
Description
Technical field
The present invention relates to technical field of automobile accessories more particularly to a kind of air brake valve detection device and detection methods.
Background technique
Air brake valve is main control device in running braking system, and main operational principle is with compressed air
As braking source, by step on brake pedal it is mobile come control valve core and then by air tank and come compressed air act on to front and back
Wheel achievees the purpose that braking.Existing air brake valve generally will do it accuracy detection after the completion of installation and debugging, predominantly detect
It is when stepping on brake pedal, correspondence can not generate delay in the spool on air brake valve (will not when stepping on brake pedal
Idle stroke is generated, when so-called idle stroke refers to stepping on pedal, generation does not act the spool of air brake valve).Existing detection
Device is fed generally by gas control executing agency, is directly acted on the spool end of air brake valve using no bulb guiding,
It is disadvantageous in that existing for detection in this way: due to the clipping room between driving push rod of installation gap and brake pedal of spool
Gap causes the idle stroke error in judgement of air brake valve valve larger, cause driving push rod effective shift value and value of feedback deviation compared with
Greatly, the pressure signal of air brake valve and the operating position of trigger signal can not be accurately calculated, the precision of detection device is influenced；Together
When, due to using pneumatic actuator, it can interact with the feedback force of air brake valve and cause the output of air brake valve power not
Stable problem.
It should be noted that above content belongs to the technology category of cognition of inventor, the prior art is not necessarily constituted.
Summary of the invention
The present invention provides a kind of air brake valve detection device and detection methods, can be passed by force snesor and displacement
Sensor detects the idle stroke of air brake valve, is detected, can accurately be sentenced by idle stroke of the detection device to air brake valve
It dies the actual brake trigger point of brake valve, avoids idle stroke from affecting detection device, and then improve the inspection of detection device
Survey precision.
Used technical solution is the present invention to solve above-mentioned technical problem:
A kind of air brake valve detection device and detection method, comprising:
Pedestal；
Detection product positioning mechanism, the detection product positioning mechanism is for positioning air brake valve；
Brake component, the brake component act on the spool of air brake valve；
Driving mechanism, on the base, which is drivingly connected with brake component, driving machine for the driving mechanism setting
Structure can drive brake component mobile, and then drive the spool of air brake valve mobile；
Power detection unit, the power detection unit is connected with brake component, for detecting the effect between spool and brake component
Power；
Displacement detecting unit, the displacement detecting unit are used to detect the displacement of brake component.
Preferably, further includes:
Two guide rails, the guide rail setting is on the base；
Guide holder, the guide holder are slidably arranged on guide rail, and the guide holder is connect with brake component, and brake component can be with leading
It is slid to seat along guide rail.
Preferably, further includes:
Floating attachment, floating attachment connection driving mechanism and brake component, so that brake component and air brake valve
Spool automatic centering.
Preferably, the floating attachment is universal joint.
Preferably, the driving mechanism is an electric cylinders, using can be avoided using cylinder because anti-with air brake valve for electric cylinders
Feedback power interaction causes air brake valve to export unstable phenomenon.
Preferably, the power detection unit uses force snesor.
Preferably, further includes:
Controller, the controller are connected with power detection unit and driving mechanism simultaneously, believe for reception detection unit
Number and brake component displacement signal, and control driving mechanism.
The detection method of above-mentioned detection device detection air brake valve includes the following steps:
The preset pressure value in controller records the priming stroke value of brake component；
The driving mechanism pushes air brake valve spool with First Speed driving brake component, and controller is received simultaneously for lasting feeding
Collect shift value and pressure value, so that pressure value is reached preset value, the shift value of corresponding preset pressure value is idle stroke；
Driving mechanism persistently drives brake component to push air brake valve spool, is continuously advanced and records shift value and pressure value
Corresponding relationship.
It is further comprising the steps of:
The driving mechanism pushes the spool of air brake valve with second speed driving brake component, and the second speed is greater than the
One speed, the shift value and pressure value of controller record brake component, detection air brake valve whether failure.
It is further comprising the steps of:
The driving mechanism driving brake component pushes the spool of air brake valve, lasting to feed, and controller real-time collecting position
Shifting value and pressure value, pressure value cannot reach preset value, i.e. air brake valve failure, exit detection.
The present invention can detect the idle stroke of air brake valve by force snesor and displacement sensor, and detection is passed through
Equipment detects the idle stroke of air brake valve, is capable of the actual brake trigger point of accurate judgement air brake valve, avoids idle stroke pair
Detection device affects, and then improves the detection accuracy of detection device；In addition, can ensure to make by the way that floating attachment is arranged
Detection product concentricity on moving part and detection product positioning mechanism, is further reduced detection device and gives product bring error；Simultaneously
The application also uses universal design to detection product positioning mechanism, can reduce the later period with general with a series of different distortion product
The investment of exploitation.
Detailed description of the invention
Fig. 1 is perspective view of the invention；
Fig. 2 is use state main view of the invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is use state perspective view of the invention.
In figure, 1, pedestal, 101, locating slot, 2, electric cylinders, 3, force snesor, 4, brake component, 5, detection product positioning mechanism,
501, the second positioning plate, the 502, first positioning plate, 503, adjusting stud, 6, guide holder, 7, guide rail, 8, floating attachment, 9, gas
Brake valve.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment and in conjunction with attached drawing, to the present invention
It is described in detail.
In addition, in the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear",
The orientation of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction "
Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.
Specifically, in the present invention, direction " preceding " can be understood as the detection device in actual use and be located at people
The direction of close human body when the front side of body, opposite direction are defined as " rear ", i.e. detection device in actual use
Direction far from human body when positioned at the front side of human body.
As shown in Figs 1-4, a kind of air brake valve detection device, comprising: pedestal 1；
Detection product positioning mechanism 5, the detection product positioning mechanism 5 include the first positioning plate 502 and the second positioning plate 501, the
One positioning plate 502 and the second positioning plate 501 are separately positioned on pedestal 1, are set on the first positioning plate 502 there are two strip spiral shell
Pit, sets that there are two the strip screw threads being respectively perpendicular with two strip threaded holes on the first positioning plate 502 on pedestal 1
Hole, bolt pass through the strip threaded hole on strip threaded hole and pedestal 1 on the first positioning plate 502 for the first positioning plate
502 is fixed with pedestal 1, while can also unclamp bolt, so that the first positioning plate 502 is all around moved on pedestal 1.
It is additionally provided with a positioning groove 101 on pedestal 1, places the second positioning plate 501 in the locating slot 101, the width of locating slot 101 is greater than the
The width of two positioning plates 501 is equipped with one on the pedestal 1 on 101 right side of locating slot and adjusts stud 503, adjusts the screw thread of stud 503
End is abutted with the second positioning plate 501, so can be by turning the left and right position for adjusting stud 503 to adjust the second positioning plate 501
It sets.Therefore, which uses universal design, and versatility just shows the first positioning plate 502 and the second positioning
The controllability of plate 501 adjusts the first positioning plate 502 and the second positioning plate 501, makes it when the different air brake valve 9 of correspondence
The size that can adapt to different air brake valves 9, increases the scope of application of the detection device, reduces the investment of later development, drop
Low cost.
However, when detecting air brake valve 9, in order to guarantee the concentricity precision of brake component 4 with the spool of air brake valve 9, also
Provided with floating attachment 8, the floating attachment 8 connects driving mechanism and brake component 4, so that brake component 4 and air brake valve 9
Spool automatic centering.In the present embodiment, above-mentioned floating attachment 8 is specifically used into universal joint, passes through universal connection
Head can be realized brake component 4 and float in perpendicular, can guarantee the concentric effect of the spool of brake component 4 and air brake valve 9, into
One step reduces the error for misaligning bring detection with 9 spool of air brake valve because of brake component 4.
Above-mentioned brake component 4 acts on the spool of air brake valve 9, enables to spool mobile, in the present embodiment, above-mentioned system
Moving part 4 is a guide rod, and the spool of the central axes of the guide rod and air brake valve 9 point-blank, can guarantee brake component 4 in this way
When acting on the spool of air brake valve 9, reduce because misaligning generation error.
Driving mechanism, the driving mechanism are arranged on pedestal 1, which is drivingly connected with brake component 4, driving
Mechanism can drive brake component 4 mobile, and then drive the spool of air brake valve 9 mobile；In the present embodiment, driving mechanism uses
Electric cylinders 2；Alternatively, in other embodiments, electric pushrod can also be used in above-mentioned electric cylinders 2, made using electric pushrod driving brake component 4
Spool for air brake valve 9.
Power detection unit, the power detection unit is connected with brake component 4, for detecting the work between spool and brake component 4
Firmly；In the present embodiment, above-mentioned power detection unit is used into force snesor 3, force snesor 3 is able to detect spool feedback and exists
Active force on brake component 4.
Displacement detecting unit, the displacement detecting unit are used to detect the displacement of brake component 4；Survey of the present invention for displacement
(displacement encoder is not drawn into the accompanying drawings) that amount is mainly arranged displacement encoder to realize in electric cylinders 2, is compiled by displacement
Code device is able to detect and feeds back the displacement of electric cylinders 2, and then is capable of detecting when the mobile displacement of the spool of air brake valve 9, obtains position
Shifting signal.The corresponding relationship for the displacement that the power and displacement encoder measured by above-mentioned force snesor 3 measures, determines air brake valve
The trigger point of 9 actual brake.
The measurement of displacement can also be measured in this way, specifically, above-mentioned displacement encoder is changed to displacement sensor,
The displacement sensor drives the same of the spool of the effect air brake valve 9 of brake component 4 without being arranged in electric cylinders 2, by electric cylinders 2
When, displacement sensor is able to detect the displacement of brake component 4, determines that gas is braked by the corresponding relationship of shift value and above-mentioned pressure value
The trigger point of what practical brake of valve 9.
Further, further includes:
Two guide rails 7, the guide rail 7 is horizontally spaced about on pedestal 1, in other preferred embodiments, can also be incited somebody to action
Two guide rails 7 are set as a guide rail 7 or three guide rails 7 or four guide rails 7 etc.；
Guide holder 6, the guide holder 6 are slidably arranged on two guide rails 7, and the guide holder 6 is connect with brake component 4, system
Moving part 4 can slide with guide holder 6 along two guide rails 7.
Further, further includes:
Controller, (being not drawn into attached drawing), the controller can be detached from the detection device, it is only necessary to pass through electric wire and this dress
Connection is set, certainly, which can also be arranged on pedestal 1, form an entirety with the detection device, above controller is
PLC controller, the PLC controller are connected with force snesor 3 and electric cylinders 2 simultaneously, act on for receiving force signal and electric cylinders 2
The displacement signal of brake component 4, and control the start and stop of electric cylinders 2.
The detection method of above-mentioned detection device detection air brake valve includes the following steps:
Firstly, detection device carries out pre-detection to air brake valve 9, specifically: 2 fast driving brake component 4 of electric cylinders pushes gas
The spool of brake valve 9, in the process, the pressure that the shift value and force snesor 3 of the controller record brake component 4 measure
Value, by pre-detection can determine detection air brake valve 9 whether failure.
Secondly, idle stroke detection is carried out again, idle stroke detection specifically: the preset pressure value in controller, record braking
The priming stroke value of part 4；
Then, electric cylinders 2 drive brake component 4 to push 9 spool of air brake valve, and driving velocity at this time is faster than the promotion of pre-detection
Degree wants low, lasting feeding while controller real-time collecting shift value and pressure value, and pressure value is made to reach preset value, corresponding default pressure
The shift value of force value is idle stroke；
It is then detected that equipment detects shift value and pressure value of the air brake valve 9 after brake triggering, electric cylinders 2 are persistently driven
Brake component 4 pushes 9 spool of air brake valve, is continuously advanced and records the corresponding relationship of shift value and pressure value.
Then, the spool for keeping electric cylinders 2 that brake component 4 is driven to push air brake valve 9, it is lasting to feed, and controller is received in real time
Collect shift value and pressure value, if the pressure value that the spool of air brake valve 9 is fed back cannot reach in 2 motion process of electric cylinders
Preset value exits detection then it is determined that failure has occurred in air brake valve 9.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or transformation made to embodiment of the present invention are fallen within the scope of protection of the present invention.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art of the present technique.
Claims (10)
1. a kind of air brake valve detection device characterized by comprising
Pedestal；
Detection product positioning mechanism, the detection product positioning mechanism is for positioning the air brake valve；
Brake component, the brake component act on the spool of the air brake valve；
Driving mechanism, the driving mechanism are set to the pedestal, and the driving mechanism is drivingly connected with the brake component, institute
Stating driving mechanism can drive the brake component mobile, and then drive the spool of the air brake valve mobile；
Power detection unit, the power detection unit are connected with the brake component, for detect the spool and the brake component it
Between active force；
Displacement detecting unit, the displacement detecting unit are used to detect the displacement of the brake component.
2. a kind of air brake valve detection device according to claim 1, which is characterized in that further include:
Two guide rails, the guide rail are set to the pedestal；
Guide holder, the guide holder are slideably positioned in the guide rail, and the guide holder is connect with the brake component, the brake component
It can be slid with the guide holder along the guide rail.
3. a kind of air brake valve detection device according to claim 1, which is characterized in that further include:
Floating attachment, the floating attachment connects the driving mechanism and the brake component, so that the brake component and institute
State the spool automatic centering of air brake valve.
4. a kind of air brake valve detection device according to claim 3, which is characterized in that the floating attachment is universal
Connector.
5. a kind of air brake valve detection device according to claim 1, which is characterized in that the driving mechanism is an electricity
Cylinder.
6. a kind of air brake valve detection device according to claim 1, which is characterized in that the power detection unit uses power
Sensor.
7. a kind of air brake valve detection device described in -6 any one claims according to claim 1, further includes:
Controller, the controller are connected with the power detection unit and the driving mechanism simultaneously, for receiving the power inspection
The displacement signal of cell signal and the brake component is surveyed, and controls the driving mechanism.
8. the detection method of air brake valve as claimed in claim 7, which is characterized in that the detection method includes following step
It is rapid:
The preset pressure value in controller records the priming stroke value of brake component；
The driving mechanism drives the brake component to push the air brake valve spool with First Speed, lasting to feed while controlling
Device real-time collecting shift value and pressure value make pressure value reach preset value, and the shift value of corresponding preset pressure value is idle stroke；
Driving mechanism persistently drives the brake component to push the air brake valve spool, is continuously advanced and records shift value and pressure
The corresponding relationship of value.
9. detection method according to claim 8, which is characterized in that further comprising the steps of:
The driving mechanism drives the brake component to push the spool of the air brake valve with second speed, and the second speed is big
In the First Speed, the shift value and pressure value of the controller record brake component, detection air brake valve whether failure.
10. detection method according to claim 8, which is characterized in that further comprising the steps of:
The driving mechanism drives the brake component to push the spool of the air brake valve, persistently feeds, and controller is received in real time
Collection shift value and pressure value, pressure value cannot reach preset value, i.e. air brake valve failure, exit detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910668717.6A CN110361189A (en) | 2019-07-23 | 2019-07-23 | A kind of air brake valve detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910668717.6A CN110361189A (en) | 2019-07-23 | 2019-07-23 | A kind of air brake valve detection device and detection method |
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| Publication Number | Publication Date |
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| CN110361189A true CN110361189A (en) | 2019-10-22 |
Family
ID=68219886
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910668717.6A Pending CN110361189A (en) | 2019-07-23 | 2019-07-23 | A kind of air brake valve detection device and detection method |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986781A (en) * | 2019-12-26 | 2020-04-10 | 芜湖通和汽车管路系统股份有限公司 | Device for detecting position of valve core in valve body |
| CN111122138A (en) * | 2019-12-25 | 2020-05-08 | 中国船舶重工集团有限公司第七一0研究所 | Device and method for detecting sensitivity of hydraulic mechanism |
| CN114967577A (en) * | 2022-07-29 | 2022-08-30 | 扬州市安宜阀门有限公司 | Safety control system for gas cylinder and control method based on safety control system |
| CN116952566A (en) * | 2023-09-21 | 2023-10-27 | 山东康健汽车科技股份有限公司 | Trailer brake valve test evaluation system |
| CN117022228A (en) * | 2023-10-10 | 2023-11-10 | 山东康健汽车科技股份有限公司 | Monitoring and early warning system for brake valve |
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| CN117022228B (en) * | 2023-10-10 | 2024-01-12 | 山东康健汽车科技股份有限公司 | Monitoring and early warning system for brake valve |
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