CN106950056B - Detection method of anti-skid exhaust valve detection device - Google Patents
Detection method of anti-skid exhaust valve detection device Download PDFInfo
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- CN106950056B CN106950056B CN201710382977.8A CN201710382977A CN106950056B CN 106950056 B CN106950056 B CN 106950056B CN 201710382977 A CN201710382977 A CN 201710382977A CN 106950056 B CN106950056 B CN 106950056B
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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
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses an anti-skid exhaust valve detection device which comprises a fixed rack for fixing an anti-skid exhaust valve, an air path system and a control circuit, wherein the fixed rack comprises a top cover and a base, three supporting rods are arranged between the top cover and the base, the anti-skid exhaust valve is fixed between the top cover and the base, the anti-skid exhaust valve is provided with an air inlet, an air outlet and an air outlet, the air path system comprises an air source, an air control valve, an electromagnetic valve, a pressure sensor and the like, and the control system comprises an industrial personal computer, a data acquisition card and the like. The detection device and the detection method are used for the action response time test, the inflation and exhaust performance test and the tightness test of the anti-skid exhaust valve, and have the advantages of higher test efficiency and test precision, simple and practical structure of the fixed component and high clamping precision.
Description
Technical Field
The invention relates to the field of detection devices of anti-skid brake system products of high-speed locomotives, in particular to a detection device and a detection method of an anti-skid exhaust valve for a high-speed locomotive.
Background
The anti-skid exhaust valve is used as an executing component of the anti-skid braking device, and when the wheels slide due to overlarge braking torque, the anti-skid braking is needed to be implemented through the air charging and discharging function of the anti-skid exhaust valve, so that the quick response braking is realized, and the purposes of shortening the sliding distance and reducing the sliding scratch of the wheels are achieved. Therefore, the performance of the anti-skid exhaust valve directly influences the stability and the reliability of anti-skid braking, and even influences the safety of a railway rail vehicle braking system and the running safety of a train. The main anti-skid braking system manufacturer in China is still in the stage of part production and technical exploration, and in order to know and master the core development technology, it is particularly important to design a detection device and a detection method with higher detection efficiency and detection precision aiming at an anti-skid exhaust valve which is a key component in anti-skid braking.
Disclosure of Invention
The invention aims to provide a detection method of an anti-skid exhaust valve detection device for a high-speed locomotive.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the anti-skid exhaust valve detection device comprises a fixed rack for fixing an anti-skid exhaust valve, an air path system and a control circuit, wherein the fixed rack comprises a top cover and a base, three support rods are arranged between the top cover and the base, the anti-skid exhaust valve is fixed between the top cover and the base, and the anti-skid exhaust valve is provided with an air inlet, an air outlet and an air outlet;
the gas circuit system comprises a gas source, wherein the gas source is connected with the input end of the pneumatic duplex member, the output end of the pneumatic duplex member is connected with the input end of the first gas storage tank, and the output end of the first gas storage tank is respectively connected with the input ends of the first pressure regulating valve and the second pressure regulating valve;
the output end of the first pressure regulating valve is connected with the input end of the first pneumatic control valve, the output end of the first pneumatic control valve is divided into two paths, one path is connected to the input end of the second pneumatic control valve, the output end of the second pneumatic control valve is connected with the air inlet of the anti-slip exhaust valve, the other path is connected to the input end of the third pneumatic control valve, the output end of the third pneumatic control valve is connected to the silencer, and the silencer is directly connected to the atmosphere;
the output end of the second pressure regulating valve is connected with the input end of the first two-position two-way electromagnetic valve, the output end of the first two-position two-way electromagnetic valve is divided into two paths, one path of the output end of the first two-position two-way electromagnetic valve is connected to the input end of the second two-position two-way electromagnetic valve, the output end of the second two-position two-way electromagnetic valve is connected to the silencer, the other path of the output end of the second two-position two-way electromagnetic valve is connected with the input end of the sixth two-position two-way valve, and the output end of the sixth two-position two-way electromagnetic valve is connected with the air inlet of the anti-slip exhaust valve;
the three-position two-way electromagnetic valve is connected with a fourth two-position two-way electromagnetic valve in parallel, the third two-position two-way electromagnetic valve is communicated with a reference cavity through the fifth two-position two-way electromagnetic valve, the output end of the fourth two-position two-way electromagnetic valve is directly communicated with the output end, and a differential pressure sensor for monitoring the leakage quantity of the air passage is arranged between the two air passages of the third two-position two-way electromagnetic valve and the fourth two-position two-way electromagnetic valve.
The air outlet of the anti-skid exhaust valve is connected to the input end of a fourth pneumatic control valve, and the input end of the fourth pneumatic control valve is connected to the air inlet end of the second air storage tank;
the control circuit comprises an industrial personal computer, the industrial personal computer is connected with a data acquisition card, the data acquisition card is connected with a signal conversion module, a driving module and a user operation module, the signal conversion module is connected with a first pressure sensor and a second pressure sensor and converts current signals into voltage signals, the first pressure sensor is connected with an air inlet of an anti-slip exhaust valve, and the second pressure sensor is connected with an air outlet of the anti-slip exhaust valve; the driving module comprises a gas circuit system driving module and an anti-skid exhaust valve driving module, wherein the gas circuit driving module is connected to each pneumatic control valve and each electromagnetic valve of the gas circuit system, and the anti-skid exhaust valve driving module is connected to a relief valve and a brake valve inside the anti-skid exhaust valve.
The first air storage tank capacity is 40L, and the second air storage tank capacity is 6L.
The detection method of the action response time of the anti-slip exhaust valve comprises the following steps:
step one, installing an anti-slip exhaust valve
The anti-skid exhaust valve is arranged on the fixed rack and is connected to the gas path system;
step two, testing action response time of anti-skid exhaust valve
The industrial personal computer controls the first pneumatic control valve and the second pneumatic control valve to be opened, the third pneumatic control valve is closed, the relief valve and the brake valve are not electrified, 500kPa of pressure is introduced into the air inlet of the anti-slip exhaust valve, after the indication of the first pressure sensor is stabilized to be 500kPa, the brake valve and the relief valve are electrified, the anti-slip exhaust valve is used for exhausting air rapidly, and the response time is relieved in the test stage; the first pneumatic control valve and the second pneumatic control valve are controlled to be opened, the third pneumatic control valve is closed, the relief valve and the brake valve are not electrified, 500kPa of pressure is introduced into the air inlet of the anti-slip exhaust valve, after the pressure is stable, the brake valve and the relief valve are electrified, the anti-slip exhaust valve is used for exhausting air rapidly, after the indication of the first pressure sensor is stable to 0kPa, the brake valve and the relief valve are not electrified, and the air charging response time is tested.
The detection method for the air charging and discharging performance test of the anti-skid exhaust valve comprises the following steps:
step one, installing an anti-slip exhaust valve
The anti-skid exhaust valve is arranged on the fixed rack and is connected to the gas path system;
step two, testing the quick air charging and stage release capability, the full release capability, the stage air charging capability, the quick air discharging capability, the air discharging capability and the straight-through release capability
a. The method comprises the steps of testing rapid air charging and stage relieving capability, wherein an industrial personal computer controls a first pneumatic control valve and a second pneumatic control valve to be opened, a third pneumatic control valve to be closed, the relieving valve and a brake valve are not electrified, 500kPa of pressure is introduced into an air inlet of an anti-slip exhaust valve, after 7 seconds, the brake valve and the relieving valve are electrified for 0.1s, the anti-slip exhaust valve is controlled to exhaust, then the brake valve is electrified and the relieving valve is not electrified for 0.9s, the anti-slip exhaust valve is controlled to work in a pressure maintaining state, after 5 times of logic actions, the brake valve is electrified, the relieving valve is not electrified, the anti-slip exhaust valve is operated in the pressure maintaining state for 4s, and the rapid air charging and stage relieving capability testing is completed through reading of a second pressure sensor;
b. the full-relief capability test, namely charging a relief valve and a brake valve after the test of the a is finished, exhausting air for 2s through an air outlet of an anti-slip exhaust valve, then charging the brake valve, and charging the relief valve, wherein the anti-slip exhaust valve works in a pressure maintaining state for 5s, and completing the full-relief capability test through reading a second pressure sensor;
c. the step of stage charging capability test, in which the industrial personal computer controls to close the third pneumatic control valve to enable the pressure of the second air storage tank to be discharged to 0kPa, opens the first pneumatic control valve and the second pneumatic control valve, closes the third pneumatic control valve, controls the brake valve and the buffer valve to enable the anti-skid exhaust valve to work in an air inlet state of 0.1s and a pressure maintaining state of 0.9s, and after the logic works for 5 times, the anti-skid exhaust valve is enabled to maintain the pressure for 3s, and the step charging capability test is completed through reading of the second pressure sensor;
d. the method comprises the steps of testing the rapid air exhaust capacity, wherein an industrial personal computer controls a first air control valve and a second air control valve to be opened, a third air control valve is closed, a relief valve and a brake valve are not electrified, 500kPa of pressure is introduced into an air inlet of an anti-slip air exhaust valve, after 6 seconds, the relief valve and the brake valve are electrified, the air is exhausted for 1.2 seconds through an air outlet of the anti-slip air exhaust valve, then the brake valve is electrified, the relief valve is not electrified, the anti-slip air exhaust valve works in a pressure maintaining state for 3 seconds, and the rapid air exhaust capacity is tested through reading of a second pressure sensor;
e. the method comprises the steps of testing emptying capacity, controlling a first pneumatic control valve and a second pneumatic control valve to be opened by an industrial personal computer, closing a third pneumatic control valve, enabling a relief valve and a brake valve to be uncharged, introducing 500kPa pressure to an air inlet of an anti-slip exhaust valve, enabling the relief valve and the brake valve to be charged after 6s, exhausting 10s through an air outlet of the anti-slip exhaust valve, and obtaining data of a second pressure sensor;
the industrial personal computer controls the first pneumatic control valve and the second pneumatic control valve to be opened, the third pneumatic control valve is closed, the relief valve and the brake valve are not electrified, 500kPa of pressure is introduced into the air inlet D of the anti-slip exhaust valve, then the data of the second pressure sensor are obtained through the air exhaust of the third pneumatic control valve for 20s, and the test of the emptying capacity is completed.
The method for detecting the tightness of the anti-slip exhaust valve comprises the following steps:
step one, installing an anti-slip exhaust valve
The anti-skid exhaust valve is arranged on the fixed rack and is connected to the gas path system;
step two, a tightness test, which comprises a pipeline tightness test and an anti-skid exhaust valve tightness test
I, pipeline tightness test, wherein the pipeline test is carried out under the condition without a second air storage tank and comprises an air inlet stage, a balance stage, a test stage and an exhaust exit stage
The method comprises the steps of in an air inlet stage, opening a first two-position two-way electromagnetic valve, closing a second two-position two-way electromagnetic valve and a fifth two-position two-way electromagnetic valve, opening a sixth two-position two-way electromagnetic valve, closing a third pneumatic valve and a fourth pneumatic valve to enable an air path system to be in an air inlet state, entering a balance stage when air pressure is stabilized at 500kPa, closing the first two-position two-way electromagnetic valve for 60s, entering a test stage, in the test stage, opening the fifth two-position two-way electromagnetic valve, after 60s of test, completing pipeline tightness test through reading of a pressure sensor value, and discharging air of a light pipeline through the second two-position two-way electromagnetic valve in an air discharge outlet stage;
the anti-skid exhaust valve overall tightness test is carried out under the condition that a second air storage tank is loaded, and comprises an air inlet stage, a rapid exhaust stage, a balancing stage, a testing stage and an exhaust exiting stage
In the air inlet stage, a first two-position two-way electromagnetic valve is opened, a second two-position two-way electromagnetic valve is closed, a fifth two-position two-way electromagnetic valve is closed, a sixth two-position two-way electromagnetic valve is opened, a third air control valve is closed, a fourth air control valve is opened, the second air storage tank is inflated, when the pressure is stabilized to 500kPa, the first two-position two-way electromagnetic valve is rapidly exhausted, a brake valve and a relief valve are electrified, the anti-slip air exhaust valve works in an air exhaust state, air is exhausted through an air outlet of the anti-slip air exhaust valve, when the value of a second pressure sensor is judged to reach 200kPa, the brake valve is electrified, the relief valve is not electrified, the anti-slip air exhaust valve works in a pressure maintaining state, then the air pressure balance state is entered, the first two-way electromagnetic valve is closed, after 60s, the test stage is entered, the fifth two-position two-way electromagnetic valve is closed, the reading of the current pressure sensor is obtained after 60s, the whole tightness test of the valve is completed, the air exhaust and the brake valve and the relief valve is not electrified, the anti-slip air valve works in the air exhaust state, and the second two-way electromagnetic valve works in the brake state.
The beneficial effects of the invention are as follows:
the detection device and the detection method are used for the action response time test, the inflation and exhaust performance test and the tightness test of the anti-skid exhaust valve, and have the advantages of higher test efficiency and test precision, simple and practical structure of the fixed component and high clamping precision.
Drawings
FIG. 1 is a schematic view of a stationary gantry structure;
FIG. 2 is a schematic structural view of an anti-skid exhaust valve;
FIG. 3 is a schematic diagram of an air circuit system according to the present invention;
fig. 4 is a logic diagram of a control circuit according to the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, an anti-slip exhaust valve detection device comprises a fixed rack for fixing an anti-slip exhaust valve, an air path system and a control circuit, wherein the fixed rack comprises a top cover 1 and a base 2, three support rods 3 are arranged between the top cover 1 and the base 2, the anti-slip exhaust valve 4 is fixed between the top cover 1 and the base 2, and the anti-slip exhaust valve 4 is provided with an air inlet D, an air outlet C and an air outlet E. The air inlet D and the air outlet C are connected to the air path system, and the air outlet E is directly communicated with the atmosphere.
The gas circuit system comprises a gas source AIR, wherein the gas source AIR is connected with the input end of a pneumatic duplex member REG0 after entering a ball valve SOR1, the output end of the pneumatic duplex member REG0 is connected with the input end of a first gas storage tank TNK1, and the output end of the first gas storage tank TNK1 is respectively connected with the input ends of a first pressure regulating valve REG1 and a second pressure regulating valve REG 2.
The output end of the first pressure regulating valve REG1 is connected with the input end of the first air control valve VAL1, the output end of the first air control valve VAL1 is divided into two paths, one path is connected to the input end of the second air control valve VAL2, the output end of the second air control valve VAL2 is connected with the air inlet D of the anti-slip exhaust valve 4, the other path is connected to the input end of the third air control valve VAL3, and the output end of the third air control valve VAL3 is connected to the silencer ZP which is directly communicated with the atmosphere.
The output end of the second pressure regulating valve REG2 is connected with the input end of the first two-position two-way electromagnetic valve YV1, the output end of the first two-position two-way electromagnetic valve YV1 is divided into two paths, one path is connected to the input end of the second two-position two-way electromagnetic valve YV2, the output end of the second two-position two-way electromagnetic valve YV2 is connected to the silencer ZP, the other path is connected with the input end of the sixth two-position two-way electromagnetic valve YV6, and the output end of the sixth two-position two-way electromagnetic valve YV6 is connected with the air inlet D of the anti-slip exhaust valve 4.
The three-position two-way electromagnetic valve YV3 is connected between the first two-position two-way electromagnetic valve YV1 and the sixth two-position two-way electromagnetic valve YV6, the third two-position two-way electromagnetic valve YV3 is connected with the fourth two-position two-way electromagnetic valve YV4 in parallel, the third two-position two-way electromagnetic valve YV3 is communicated with a reference cavity through the fifth two-position two-way electromagnetic valve YV5, the output end of the fourth two-position two-way electromagnetic valve YV4 is directly communicated with the reference cavity, and a differential pressure sensor DP used for monitoring the leakage quantity of a gas circuit is arranged in the middle of the gas circuit formed by the third two-position two-way electromagnetic valve and the fourth two-way electromagnetic valve.
The gas outlet C of the anti-slip exhaust valve 4 is connected to the input end of a fourth pneumatic valve VAL4, and the input end of the fourth pneumatic valve VAL4 is connected to the gas inlet end of a second gas storage tank TNK 2.
As shown in fig. 3 and 4, the control circuit comprises an industrial personal computer 5, the industrial personal computer 5 is connected with a data acquisition card 6, the data acquisition card 6 is connected with a signal conversion module 7, a driving module 8 and a user operation module 9, the signal conversion module 7 is connected with a first pressure sensor P1 and a second pressure sensor P2 and converts current signals into voltage signals, the first pressure sensor P1 is connected with an air inlet D of an anti-slip exhaust valve 4, and the second pressure sensor P2 is connected with an air outlet C of the anti-slip exhaust valve 4; the driving module 8 comprises an air circuit system driving module 801 and an anti-skid exhaust valve driving module 802, the air circuit driving module 801 is connected to each pneumatic control valve and each electromagnetic valve of the air circuit system, and the anti-skid exhaust valve driving module 802 is connected to the relief valve and the brake valve inside the anti-skid exhaust valve 4.
The first air storage tank TNK1 capacity is 40L, and the second air storage tank TNK2 capacity is 6L.
The detection of the anti-skid exhaust valve can be particularly used for detecting the action response time, the air charging and discharging performance and the sealing performance of the anti-skid exhaust valve.
The detection method of the action response time of the anti-skid exhaust valve comprises the following steps:
step one, installing an anti-slip exhaust valve
The anti-slip exhaust valve 4 is arranged on the fixed rack and is connected to the gas path system;
step two, testing action response time of anti-skid exhaust valve
The industrial personal computer 5 controls the first pneumatic control valve VAL1 and the second pneumatic control valve VAL2 to be opened, the third pneumatic control valve VAL3 to be closed, the relief valve and the brake valve are not electrified, the 500kPa pressure is introduced into the air inlet D of the anti-slip exhaust valve 4, after the indication of the first pressure sensor P1 is stabilized to be 500kPa, the brake valve and the relief valve are electrified, the anti-slip exhaust valve 4 is rapidly exhausted, and the response time is relieved in the test stage; the first pneumatic control valve VAL1 and the second pneumatic control valve VAL2 are controlled to be opened, the third pneumatic control valve VAL3 is closed, the relief valve and the brake valve are not electrified, the pressure of 500kPa is introduced into the air inlet D of the anti-slip exhaust valve 4, after the pressure is stabilized, the brake valve and the relief valve are electrified, the anti-slip exhaust valve 4 rapidly exhausts air, after the indication of the first pressure sensor P1 is stabilized to be 0kPa, the brake valve and the relief valve are not electrified, and the air charging response time in the test stage is tested.
The detection method for the air charging and discharging performance test of the anti-skid exhaust valve comprises the following steps:
step one, installing an anti-slip exhaust valve
The anti-slip exhaust valve 4 is arranged on the fixed rack and is connected to the gas path system;
step two, testing the quick air charging and stage release capability, the full release capability, the stage air charging capability, the quick air discharging capability, the air discharging capability and the straight-through release capability
a. The rapid air charging and stage relieving capability test comprises the steps that an industrial personal computer 5 controls a first air control valve VAL1 and a second air control valve VAL2 to be opened, a third air control valve VAL3 is closed, a relieving valve and a brake valve are not electrified, 500kPa pressure is introduced into an air inlet D of an anti-slip exhaust valve 4, after 7 seconds, the brake valve and the relieving valve are electrified for 0.1 seconds, the anti-slip exhaust valve 4 is controlled to exhaust, then the brake valve is electrified and the relieving valve is not electrified for 0.9 seconds, the anti-slip exhaust valve 4 is controlled to work in a pressure maintaining state, after the logic action is carried out for 5 times, the brake valve is electrified and the relieving valve is not electrified, the anti-slip exhaust valve 4 is operated in the pressure maintaining state for 4 seconds, and the rapid air charging and stage relieving capability test is completed through reading of a second pressure sensor P2;
b. the full-relief capability test, namely charging a relief valve and a brake valve after the test of a is finished, exhausting air for 2s through an air outlet E of an anti-slip exhaust valve 4, then charging the brake valve, and charging the relief valve, wherein the anti-slip exhaust valve works in a pressure maintaining state for 5s, and the full-relief capability test is completed through reading a second pressure sensor P2;
c. the step of stage air charging capability test, the industrial personal computer 5 controls to close the third air control valve VAL3, so that the pressure of the second air storage tank TNK2 is discharged to 0kPa, the first air control valve VAL1 and the second air control valve VAL2 are opened, the third air control valve VAL3 is closed, the brake valve and the buffer valve are controlled, the anti-slip exhaust valve 4 is operated in an air inlet state for 0.1s, a pressure maintaining state for 0.9s, after the logic operation is carried out for 5 times, the anti-slip exhaust valve 4 is maintained for 3s, and the step of stage air charging capability test is completed by reading the second pressure sensor P2;
d. the test of the rapid air exhaust capability, the industrial personal computer 5 controls the first air control valve VAL1 and the second air control valve VAL2 to be opened, the third air control valve VAL3 to be closed, the relief valve and the brake valve are not electrified, the pressure of 500kPa is introduced into the air inlet D of the anti-slip air exhaust valve 4, after 6 seconds, the relief valve and the brake valve are electrified, the air is exhausted for 1.2 seconds through the air outlet E of the anti-slip air exhaust valve 4, then the brake valve is electrified, the relief valve is not electrified, the anti-slip air exhaust valve 4 works in a pressure maintaining state for 3 seconds, and the test of the rapid air exhaust capability is completed through the reading of the second pressure sensor P2;
e. the evacuation capability test, the industrial personal computer 5 controls the first pneumatic valve VAL1 and the second pneumatic valve VAL2 to be opened, the third pneumatic valve VAL3 to be closed, the relief valve and the brake valve are not electrified, the pressure of 500kPa is introduced into the air inlet D of the anti-slip exhaust valve 4, after 6 seconds, the relief valve and the brake valve are electrified, and the data of the second pressure sensor P2 are obtained through the exhaust of 10 seconds of the exhaust port E of the anti-slip exhaust valve 4;
the industrial personal computer 5 controls the first pneumatic control valve VAL1 and the second pneumatic control valve VAL2 to be opened, the third pneumatic control valve VAL3 to be closed, the relief valve and the brake valve are not electrified, the pressure of 500kPa is introduced into the air inlet D of the anti-slip exhaust valve 4, and then the data of the second pressure sensor P2 are obtained through the third pneumatic control valve VAL3 for 20s, so that the test of the emptying capacity is completed.
The method for detecting the tightness of the anti-slip exhaust valve comprises the following steps:
step one, installing an anti-slip exhaust valve
The anti-slip exhaust valve 4 is arranged on the fixed rack and is connected to the gas path system;
step two, a tightness test, which comprises a pipeline tightness test and an anti-skid exhaust valve tightness test
I, pipeline tightness test, wherein the pipeline test is carried out under the condition without a second air storage tank TNK2 and comprises an air inlet stage, a balance stage, a test stage and an exhaust exit stage
In the air inlet stage, a first two-position two-way electromagnetic valve YV1 is opened, a second two-position two-way electromagnetic valve YV2 and a fifth two-position two-way electromagnetic valve YV5 are closed, a sixth two-position two-way electromagnetic valve YV6 is opened, a third air control valve VAL3 and a fourth air control valve VAL4 are closed, an air circuit system is in an air inlet state, when the air pressure is stabilized at 500kPa, the air circuit system enters a balance stage, after the first two-position two-way electromagnetic valve YV160s is closed, the air circuit enters a test stage, the test stage is opened, a fifth two-position two-way electromagnetic valve YV5 is opened, after 60s of test is carried out, the pipeline tightness test is completed through reading of DP values of a pressure sensor, and in the air outlet stage, the air of an optical pipeline is discharged through the second two-position two-way electromagnetic valve YV 2;
the anti-skid exhaust valve 4 overall tightness test is carried out under the condition that the second air storage tank TNK2 is loaded, and comprises an air inlet stage, a rapid exhaust stage, a balance stage, a test stage and an exhaust exit stage
In the air inlet stage, a first two-position two-way electromagnetic valve YV1 is opened, a second two-position two-way electromagnetic valve YV2 and a fifth two-position two-way electromagnetic valve YV5 are closed, a sixth two-position two-way electromagnetic valve YV6 is opened, a third air control valve VAL3 is closed, a fourth air control valve VAL4 is opened, the second air storage tank TNK2 is inflated, when the pressure is stabilized to 500kPa, air is rapidly exhausted, the first two-position two-way electromagnetic valve YV1 is closed, a brake valve and a buffer valve are electrified, the anti-slip air exhaust valve 4 works in an air exhaust state, air is exhausted through an exhaust port E of the anti-slip air exhaust valve 4, when the value of a second pressure sensor P2 is judged to be 200kPa, the brake valve is electrified, the anti-slip air exhaust valve 4 works in a pressure maintaining state, then the air pressure balance state is entered, the first two-way electromagnetic valve YV1 is closed, the test stage is entered after 60s, the fifth two-position two-way electromagnetic valve YV5 is closed, the current air exhaust valve DP is obtained after 60s is tested, the anti-slip air exhaust valve is closed, the two-way electromagnetic valve 4 works in the anti-slip air exhaust state is completed, the anti-slip air exhaust valve 2 is completely, and the anti-slip air exhaust valve is in the air exhaust state, and the anti-slip air valve 2 is completely closed, and the anti-slip air valve is completely, and the air is completely cooled, and the air.
The described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (3)
1. The detection method of the anti-skid exhaust valve detection device is characterized by comprising a fixed rack for fixing the anti-skid exhaust valve, an air path system and a control circuit, wherein the fixed rack comprises a top cover and a base, three support rods are arranged between the top cover and the base, the anti-skid exhaust valve is fixed between the top cover and the base, and the anti-skid exhaust valve is provided with an air inlet, an air outlet and an air outlet;
the gas circuit system comprises a gas source, wherein the gas source is connected with the input end of the pneumatic duplex member, the output end of the pneumatic duplex member is connected with the input end of the first gas storage tank, and the output end of the first gas storage tank is respectively connected with the input ends of the first pressure regulating valve and the second pressure regulating valve;
the output end of the first pressure regulating valve is connected with the input end of the first pneumatic control valve, the output end of the first pneumatic control valve is divided into two paths, one path is connected to the input end of the second pneumatic control valve, the output end of the second pneumatic control valve is connected with the air inlet of the anti-slip exhaust valve, the other path is connected to the input end of the third pneumatic control valve, the output end of the third pneumatic control valve is connected to the silencer, and the silencer is directly connected to the atmosphere;
the output end of the second pressure regulating valve is connected with the input end of the first two-position two-way electromagnetic valve, the output end of the first two-position two-way electromagnetic valve is divided into two paths, one path of the output end of the first two-position two-way electromagnetic valve is connected to the input end of the second two-position two-way electromagnetic valve, the output end of the second two-position two-way electromagnetic valve is connected to the silencer, the other path of the output end of the second two-position two-way electromagnetic valve is connected with the input end of the sixth two-position two-way valve, and the output end of the sixth two-position two-way electromagnetic valve is connected with the air inlet of the anti-slip exhaust valve;
a third two-position two-way electromagnetic valve is connected between the first two-way electromagnetic valve and the sixth two-way electromagnetic valve, the third two-way electromagnetic valve is connected with a fourth two-way electromagnetic valve in parallel, the third two-way electromagnetic valve is communicated with the reference cavity through the fifth two-way electromagnetic valve, the output end of the fourth two-position two-way electromagnetic valve is directly connected to the reference cavity, and a differential pressure sensor for monitoring the leakage amount of the air passage is arranged between the air passages of the third two-position two-way electromagnetic valve and the fourth two-position two-way electromagnetic valve;
the air outlet of the anti-skid exhaust valve is connected to the input end of a fourth pneumatic control valve, and the input end of the fourth pneumatic control valve is connected to the air inlet end of the second air storage tank;
the control circuit comprises an industrial personal computer, the industrial personal computer is connected with a data acquisition card, the data acquisition card is connected with a signal conversion module, a driving module and a user operation module, the signal conversion module is connected with a first pressure sensor and a second pressure sensor and converts current signals into voltage signals, the first pressure sensor is connected with an air inlet of an anti-slip exhaust valve, and the second pressure sensor is connected with an air outlet of the anti-slip exhaust valve; the driving module comprises a gas circuit system driving module and an anti-skid exhaust valve driving module, the gas circuit driving module is connected to each pneumatic control valve and each electromagnetic valve of the gas circuit system, and the anti-skid exhaust valve driving module is connected to a relief valve and a brake valve in the anti-skid exhaust valve;
the first gas storage tank capacity is 40L, and the second gas storage tank capacity is 6L;
the detection method of the action response time of the anti-skid exhaust valve detection device comprises the following steps:
step one, installing an anti-slip exhaust valve
The anti-skid exhaust valve is arranged on the fixed rack and is connected to the gas path system;
step two, testing action response time of anti-skid exhaust valve
The industrial personal computer controls the first pneumatic control valve and the second pneumatic control valve to be opened, the third pneumatic control valve is closed, the relief valve and the brake valve are not electrified, 500kPa of pressure is introduced into the air inlet of the anti-slip exhaust valve, after the indication of the first pressure sensor is stabilized to be 500kPa, the brake valve and the relief valve are electrified, the anti-slip exhaust valve is used for exhausting air rapidly, and the response time is relieved in the test stage; the first pneumatic control valve and the second pneumatic control valve are controlled to be opened, the third pneumatic control valve is closed, the relief valve and the brake valve are not electrified, 500kPa of pressure is introduced into the air inlet of the anti-slip exhaust valve, after the pressure is stable, the brake valve and the relief valve are electrified, the anti-slip exhaust valve is used for exhausting air rapidly, after the indication of the first pressure sensor is stable to 0kPa, the brake valve and the relief valve are not electrified, and the air charging response time is tested.
2. The detection method of an anti-slip exhaust valve detection device according to claim 1, wherein the detection method of the anti-slip exhaust valve air charging and discharging performance test of the anti-slip exhaust valve detection device comprises the steps of:
step one, installing an anti-slip exhaust valve
The anti-skid exhaust valve is arranged on the fixed rack and is connected to the gas path system;
step two, testing the quick air charging and stage release capability, the full release capability, the stage air charging capability, the quick air discharging capability, the air discharging capability and the straight-through release capability
a. The method comprises the steps of testing rapid air charging and stage relieving capability, wherein an industrial personal computer controls a first pneumatic control valve and a second pneumatic control valve to be opened, a third pneumatic control valve to be closed, the relieving valve and a brake valve are not electrified, 500kPa of pressure is introduced into an air inlet of an anti-slip exhaust valve, after 7 seconds, the brake valve and the relieving valve are electrified for 0.1s, the anti-slip exhaust valve is controlled to exhaust, then the brake valve is electrified and the relieving valve is not electrified for 0.9s, the anti-slip exhaust valve is controlled to work in a pressure maintaining state, after 5 times of logic actions, the brake valve is electrified, the relieving valve is not electrified, the anti-slip exhaust valve is operated in the pressure maintaining state for 4s, and the rapid air charging and stage relieving capability testing is completed through reading of a second pressure sensor;
b. the full-relief capability test, namely charging a relief valve and a brake valve after the test of the a is finished, exhausting air for 2s through an air outlet of an anti-slip exhaust valve, then charging the brake valve, and charging the relief valve, wherein the anti-slip exhaust valve works in a pressure maintaining state for 5s, and completing the full-relief capability test through reading a second pressure sensor;
c. the step of stage charging capability test, in which the industrial personal computer controls to close the third pneumatic control valve to enable the pressure of the second air storage tank to be discharged to 0kPa, opens the first pneumatic control valve and the second pneumatic control valve, closes the third pneumatic control valve, controls the brake valve and the buffer valve to enable the anti-skid exhaust valve to work in an air inlet state of 0.1s and a pressure maintaining state of 0.9s, and after the logic works for 5 times, the anti-skid exhaust valve is enabled to maintain the pressure for 3s, and the step charging capability test is completed through reading of the second pressure sensor;
d. the method comprises the steps of testing the rapid air exhaust capacity, wherein an industrial personal computer controls a first air control valve and a second air control valve to be opened, a third air control valve is closed, a relief valve and a brake valve are not electrified, 500kPa of pressure is introduced into an air inlet of an anti-slip air exhaust valve, after 6 seconds, the relief valve and the brake valve are electrified, the air is exhausted for 1.2 seconds through an air outlet of the anti-slip air exhaust valve, then the brake valve is electrified, the relief valve is not electrified, the anti-slip air exhaust valve works in a pressure maintaining state for 3 seconds, and the rapid air exhaust capacity is tested through reading of a second pressure sensor;
e. the method comprises the steps of testing emptying capacity, controlling a first pneumatic control valve and a second pneumatic control valve to be opened by an industrial personal computer, closing a third pneumatic control valve, enabling a relief valve and a brake valve to be uncharged, introducing 500kPa pressure to an air inlet of an anti-slip exhaust valve, enabling the relief valve and the brake valve to be charged after 6s, exhausting 10s through an air outlet of the anti-slip exhaust valve, and obtaining data of a second pressure sensor;
the industrial personal computer controls the first pneumatic control valve and the second pneumatic control valve to be opened, the third pneumatic control valve is closed, the relief valve and the brake valve are not electrified, 500kPa of pressure is introduced into the air inlet D of the anti-slip exhaust valve, then the data of the second pressure sensor are obtained through the air exhaust of the third pneumatic control valve for 20s, and the test of the emptying capacity is completed.
3. The method for detecting the tightness of the anti-slip exhaust valve detection device according to claim 1, comprising the steps of:
step one, installing an anti-slip exhaust valve
The anti-skid exhaust valve is arranged on the fixed rack and is connected to the gas path system;
the pipeline tightness test is carried out under the condition without a second air storage tank and comprises an air inlet stage, a balance stage, a test stage and an exhaust outlet stage
The method comprises the steps of in an air inlet stage, opening a first two-position two-way electromagnetic valve, closing a second two-position two-way electromagnetic valve and a fifth two-position two-way electromagnetic valve, opening a sixth two-position two-way electromagnetic valve, closing a third pneumatic valve and a fourth pneumatic valve to enable an air path system to be in an air inlet state, entering a balance stage when air pressure is stabilized at 500kPa, closing the first two-position two-way electromagnetic valve for 60s, entering a test stage, in the test stage, opening the fifth two-position two-way electromagnetic valve, after 60s of test, completing pipeline tightness test through reading of a pressure sensor value, and discharging air of a light pipeline through the second two-position two-way electromagnetic valve in an air discharge outlet stage;
the anti-skid exhaust valve overall tightness test is carried out under the condition that a second air storage tank is loaded, and comprises an air inlet stage, a rapid exhaust stage, a balancing stage, a testing stage and an exhaust exiting stage
In the air inlet stage, a first two-position two-way electromagnetic valve is opened, a second two-position two-way electromagnetic valve is closed, a fifth two-position two-way electromagnetic valve is closed, a sixth two-position two-way electromagnetic valve is opened, a third air control valve is closed, a fourth air control valve is opened, the second air storage tank is inflated, when the pressure is stabilized to 500kPa, the first two-position two-way electromagnetic valve is rapidly exhausted, a brake valve and a relief valve are electrified, the anti-slip air exhaust valve works in an air exhaust state, air is exhausted through an air outlet of the anti-slip air exhaust valve, when the value of a second pressure sensor is judged to reach 200kPa, the brake valve is electrified, the relief valve is not electrified, the anti-slip air exhaust valve works in a pressure maintaining state, then the air pressure balance state is entered, the first two-way electromagnetic valve is closed, after 60s, the test stage is entered, the fifth two-position two-way electromagnetic valve is closed, the reading of the current pressure sensor is obtained after 60s, the whole tightness test of the valve is completed, the air exhaust and the brake valve and the relief valve is not electrified, the anti-slip air valve works in the air exhaust state, and the second two-way electromagnetic valve works in the brake state.
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| CN107748062A (en) * | 2017-11-10 | 2018-03-02 | 瑞立集团瑞安汽车零部件有限公司 | A kind of anti-skidding exhaust valve experimental bench |
| CN111289193B (en) * | 2020-04-08 | 2021-10-26 | 安徽本立机械配件制造有限公司 | Valve gas tightness quality inspection equipment |
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