CN111735644B - Debugging control system for central tire inflation and deflation system - Google Patents
Debugging control system for central tire inflation and deflation system Download PDFInfo
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- CN111735644B CN111735644B CN202010583709.4A CN202010583709A CN111735644B CN 111735644 B CN111735644 B CN 111735644B CN 202010583709 A CN202010583709 A CN 202010583709A CN 111735644 B CN111735644 B CN 111735644B
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Abstract
The invention belongs to the technical field of wheeled vehicles, and particularly relates to a debugging control system of a central tire inflation and deflation system. The debugging control system provided by the invention has no complex hardware circuit and program control, and automatically realizes the conversion of the tire capacity during the debugging of the tire central inflation and deflation system through switch control; the pressure switch is used for automatic control, so that the pressure of the tire does not exceed the pressure safety requirement of the tire when the central inflation and deflation system of the tire is debugged; the switch is used for controlling the supply of the debugged air source pressure to the tire central inflation and deflation product; the opening and closing pressure of the overflow valve of the tire central inflation and deflation system product is provided through switch control, the opening and closing pressure of the overflow valve of the tire central inflation and deflation system product is used for debugging the overflow valve of the tire central inflation and deflation system product, the brake pressure of the vehicle during running is not influenced when the tire central inflation and deflation system product is used on the vehicle, the system is simple to operate, and the debugging requirements of the tire central inflation and deflation system products of various models are met.
Description
Technical Field
The invention belongs to the technical field of wheeled vehicles, and particularly relates to a debugging control system of a central tire inflation and deflation system, which is applied to a debugging test of a central tire inflation and deflation system product of a wheeled vehicle.
Background
At present, a central inflation and deflation system product for vehicle tires is widely applied to various heavy military and civil vehicles, off-road vehicles, deserts, oil fields, railway construction and heavy engineering, is used for inflating, deflating and measuring the pressure of tires of wheel-type vehicles in running and forbidden states of the wheel-type vehicles, and meets the requirements of the wheel-type vehicles on the air pressure of the tires when the wheel-type vehicles pass through roads, muddy roads, ice and snow and the like. The debugging of different tire central inflation and deflation system products needs to use the corresponding tire capacity, the use of different tire central inflation and deflation system products has corresponding requirements on the air source pressure, and the different tire central inflation and deflation system products have the requirements on the inflation time, the deflation time and the pressure measurement accuracy and the corresponding environmental adaptability. Therefore, it is necessary to provide a debugging control system for central tire inflation and deflation system, which is used for performing debugging tests on central tire inflation and deflation systems of various types of tires, completing the detection of the inflation function, deflation function, pressure measurement function, automatic tire pressure adjustment and environmental suitability of central tire inflation and deflation system products of various types of tires, ensuring the quality of the central tire inflation and deflation system products, and improving the production debugging test efficiency of the central tire inflation and deflation system.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to provide a central tire inflation and deflation system commissioning control system.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a central tire inflation/deflation system commissioning control system, comprising: the device comprises a first tire 1, a second tire 2, an air path reversing valve 3, a first control air path 4, a second control air path 5, a main air path 6, an alarm lamp 7, a pressure relay 8, a first two-position three-way electromagnetic valve 9, a tire monitoring pressure gauge 10, a second two-position three-way electromagnetic valve 11, a third two-position three-way electromagnetic valve 12, a fourth two-position three-way electromagnetic valve 13, a fifth two-position three-way electromagnetic valve 14, a sixth two-position three-way electromagnetic valve 15, a seventh two-position three-way electromagnetic valve 16, a first pressure reducing valve 17, a second pressure reducing valve 18, a third pressure reducing valve 19, a fourth pressure reducing valve 20, a one-way valve 21, an air pump 22, a filter 23, an air source monitoring pressure gauge 24 and a debugging monitoring pressure gauge 25;
the first tire 1 and the second tire 2 with two different volumes are connected with an air outlet port of the air path conversion valve 3 through pipelines, and in a normal state, a channel in the air path conversion valve 3 conducts the first tire 1, the second tire 2 and the main air path 6;
the main gas circuit 6 is connected with one end of a normally open port of a first two-position three-way electromagnetic valve 9, and the tire monitoring pressure meter 10 is connected to the main gas circuit 6 and used for displaying tire pressure; the other end of the normally open port of the first two-position three-way electromagnetic valve 9 is connected with the tire valve air outlet port of a tire central inflation and deflation system product through a pipeline;
the pressure relay 8 and the manual switch S1 are connected in parallel to control the action of the first two-position three-way electromagnetic valve 9 and are used for controlling the on-off of the main gas path 6;
the first control air path 4 of the air path conversion valve 3 is connected with one end of a normally-off port of a sixth two-position three-way electromagnetic valve 15, the other end of the normally-off port of the sixth two-position three-way electromagnetic valve 15 is connected with a pipeline of a passage of the air pump 22, and the action of the sixth two-position three-way electromagnetic valve 15 is controlled by a switch S6;
the second control air path 5 of the air path switching valve 3 is connected with one end of a normally-off port of the seventh two-position three-way electromagnetic valve 16, the other end of the normally-off port of the seventh two-position three-way electromagnetic valve 16 is connected with a pipeline of a passage of the air pump 22, and the action of the seventh two-position three-way electromagnetic valve 16 is controlled by a switch S5;
the first tire 1 and the second tire 2 are two tire combinations with different volumes, the number of the tire combinations is 10, the tire combinations are respectively connected with 10 air path reversing valves 3, and then the tire combinations are respectively connected with 10 first two-position three-way electromagnetic valves 9 and a tire monitoring pressure gauge 10 to form an air path and a circuit which are used for controlling the capacity conversion of the tires of 10-wheel, 8-wheel, 6-wheel and 4-wheel vehicles and the on-off of a main air path 6;
a second two-position three-way electromagnetic valve 11, a third two-position three-way electromagnetic valve 12, a fourth two-position three-way electromagnetic valve 13 and a fifth two-position three-way electromagnetic valve 14 are connected in parallel, a normally-off port of the electromagnetic valves is connected with an air source end of a tire central inflation and deflation system product through a pipeline, an air source monitoring pressure gauge 24 is connected to the pipeline between the two-position three-way electromagnetic valve and the air source end of the tire central inflation and deflation system product and used for displaying air source pressure, the other end of the normally-off port of the second two-position three-way electromagnetic valve 11 is connected with an air outlet end of a first pressure reducing valve 17, an air inlet end of the first pressure reducing valve 17 is connected with an air pump 22 through a pipeline, and the action of the second two-position three-way electromagnetic valve 11 is controlled by a switch S2; the other end of the normally-off port of the third two-position three-way electromagnetic valve 12 is connected with the air outlet end of the second pressure reducing valve 18, the air inlet end of the second pressure reducing valve 18 is connected with the air pump 22 through a pipeline, and the action of the third two-position three-way electromagnetic valve 12 is controlled by a switch S3; the other ends of the normally-off ports of the fourth two-position three-way electromagnetic valve 13 and the fifth two-position three-way electromagnetic valve 14 are respectively connected with two one-way valves 21, the two one-way valves 21 are respectively connected with the air outlet ends of the third pressure reducing valve 19 and the fourth pressure reducing valve 20, the air inlet ends of the third pressure reducing valve 19 and the fourth pressure reducing valve 20 are connected with an air pump 22 through pipelines, and the on-off actions of the fourth two-position three-way electromagnetic valve 13 and the fifth two-position three-way electromagnetic valve 14 are controlled by a switch S4;
when the tire central inflation and deflation system is debugged, a debugging and monitoring pressure gauge 25 is connected between a tire valve and a control box assembly, and high-pressure gas used by the tire central inflation and deflation system debugging and control system is supplied by an air pump 22 and filtered by a filter 23.
The first two-position three-way electromagnetic valve 9 is connected with an alarm indicator light 7 in parallel and used for displaying the working state of the first two-position three-way electromagnetic valve 9.
When the tire capacity of the debugged tire central inflation and deflation system product is close to the sum of the capacities of the first tire 1 and the second tire 2, the switch S5 and the switch S6 are in an off state, high-pressure air for enabling the air path reversing valve 3 to act is not arranged in the first control air path 4 and the second control air path 5, and the air path inside the air path reversing valve 3 connects the first tire 1 and the second tire 2 into a whole, so that the debugging requirement of the tire central inflation and deflation system with the tire capacity is met.
When the tire capacity of the debugged tire central inflation and deflation system product is consistent with that of the first tire 1, the switch S6 is closed, the sixth two-position three-way electromagnetic valve 15 is switched on, high-pressure gas output by the air pump 22 enters the air path reversing valve 3 through the first control air path 4, and the air path reversing valve 3 closes an air path connected with the second tire 2, so that the main air path 6 can only be connected with the first tire 1, and the debugging requirement of the tire central inflation and deflation system with the tire capacity is met.
When the tire capacity of the debugged tire central inflation and deflation system product is consistent with that of the second tire 2, the switch S5 is closed, the seventh two-position three-way electromagnetic valve 16 is conducted, high-pressure air output by the air pump 22 enters the air path reversing valve 3 through the second control air path 5, and the air path reversing valve 3 closes an air path connected with the first tire 1, so that the main air path 6 can only be connected with the second tire 2, and the debugging requirement of the tire central inflation and deflation system with the tire capacity is met.
The pressure of the air outlet of the first pressure reducing valve 17 is adjusted to be the stop pressure required by an overflow valve in a control box assembly of a tire central inflation and deflation system product, the pressure of the air outlet of the second pressure reducing valve 18 is adjusted to be the opening pressure required by the overflow valve in the control box assembly of the tire central inflation and deflation system product, the pressures of the air outlets of the third pressure reducing valve 19 and the fourth pressure reducing valve 20 are adjusted to be the air source pressure required by the tire central inflation and deflation system product, the pressure of the air outlet of the pressure reducing valves is adjusted by observing the value of an air source monitoring pressure gauge 24, and the check valve 21 is used for preventing the pressure difference between the air outlets of the third pressure reducing valve 19 and the fourth pressure reducing valve 20 from causing the air return of the pressure reducing valves.
When the tire central inflation and deflation system product is debugged, a tire valve of the tire central inflation and deflation system product is connected with a normally-open port of the first two-position three-way electromagnetic valve 9, the switch S2 is turned on, an overflow valve in a control box assembly of the system product is adjusted, the air source monitoring pressure gauge 24 is observed, the switch S2 is turned off, the switch S3 is turned on, the overflow valve in the control box assembly of the system product is adjusted, the air source monitoring pressure gauge 24 is observed, the adjustment is repeated, until the switch S2 is turned on, the overflow valve in the system product can be cut off, the switch S3 is turned on, the overflow valve in the system product can be opened, and the debugging of the overflow valve of the tire central inflation and deflation system is completed.
When the inflation function of the tire central inflation and deflation system product is detected, the switch S4 is opened, the fourth two-position three-way electromagnetic valve 13 and the fifth two-position three-way electromagnetic valve 14 work, high-pressure gas at the air source end of the system product enters the tire from the air outlet of the tire valve of the system product through the first two-position three-way electromagnetic valve 9, the main air passage 6 and the air passage reversing valve 3, the tire monitoring pressure gauge 10 is observed, the inflation time of the system product is recorded, the inflation function of the system product is detected, if the pressure exceeds the bearing pressure of the tire, the pressure relay 8 acts, the first two-position three-way electromagnetic valve 9 is switched on, the main air passage 6 is switched off, and the system product cannot inflate the tire.
When the product of the central tire inflation and deflation system is subjected to deflation function detection, the gas in the tire is discharged into the atmosphere through the tire valve of the product of the central tire inflation and deflation system through the gas path reversing valve 3, the main gas path 6 and the first two-position three-way electromagnetic valve 9, and the deflation pressure of the product of the central tire inflation and deflation system is observed through the debugging monitoring pressure gauge 25 on the gas path between the tire valve of the product of the observation system and the control box assembly of the product of the system.
When the pressure measuring function of the tire central inflation and deflation system product is detected, the display pressure of the system product is compared with the value of a tire monitoring pressure gauge 10;
when the product of the central inflation and deflation system of the tire needs to be replaced, the switch S1 is turned on, the first two-position three-way electromagnetic valve 9 works, the main air passage 6 is cut off, the gas in the tire cannot be discharged, and the replacement of the product of the system is not influenced.
(III) advantageous effects
The invention provides a debugging control system of a central tire inflation and deflation system, which automatically realizes the capacity conversion of tires, the automatic control of air source pressure and the automatic safety protection of debugging and testing tires through switch control, meets the requirements of debugging tests and environment tests of the central tire inflation and deflation system at normal temperature, has simple and reliable operation through the functions of testing the inflation, pressure measurement and deflation of the central tire inflation and deflation system product and automatically adjusting the tire pressure, and can realize the capacity conversion of more than ten tires through adding an air path conversion valve group.
Compared with the prior art, the debugging control system provided by the invention has no complex hardware circuit and program control, and automatically realizes the conversion of the tire capacity when the central inflation and deflation system of the tire is debugged through switch control; the pressure switch is used for automatic control, so that the pressure of the tire does not exceed the pressure safety requirement of the tire when the central inflation and deflation system of the tire is debugged; the switch is used for controlling the supply of the debugged air source pressure to the tire central inflation and deflation product; the opening and closing pressure of an overflow valve of a tire central inflation and deflation system product is provided through switch control, the opening and closing pressure is used for debugging the overflow valve of the tire central inflation and deflation system product, and the brake pressure of the tire central inflation and deflation system product is not influenced when the tire central inflation and deflation system product is used on a vehicle; the high-temperature, low-temperature and wet-heat performance tests of the tire central inflation and deflation system product are completed by increasing the length of the connecting pipeline, and the system is simple to operate and meets the debugging requirements of various types of tire central inflation and deflation system products.
Drawings
Fig. 1 is a schematic structural diagram of a debugging control system of a central tire inflation and deflation system of the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
On the debugging test bed, the tire central inflation and deflation system product is connected with the tire central inflation and deflation system debugging control system pipeline through a pipeline to perform the inflation, deflation and pressure measurement function detection and the environment adaptability detection of the tire central inflation and deflation system product, and the control of tire capacity conversion, air source pressure and the like during the debugging of the tire central inflation and deflation system product is realized through the air path control of the tire central inflation and deflation system debugging control system, so that the debugging requirements of the tire central inflation and deflation system products of various models of wheeled vehicles are met.
Specifically, the central tire inflation and deflation system commissioning control system, as shown in fig. 1, comprises: the device comprises a first tire 1, a second tire 2, an air path reversing valve 3, a first control air path 4, a second control air path 5, a main air path 6, an alarm lamp 7, a pressure relay 8, a first two-position three-way electromagnetic valve 9, a tire monitoring pressure gauge 10, a second two-position three-way electromagnetic valve 11, a third two-position three-way electromagnetic valve 12, a fourth two-position three-way electromagnetic valve 13, a fifth two-position three-way electromagnetic valve 14, a sixth two-position three-way electromagnetic valve 15, a seventh two-position three-way electromagnetic valve 16, a first pressure reducing valve 17, a second pressure reducing valve 18, a third pressure reducing valve 19, a fourth pressure reducing valve 20, a one-way valve 21, an air pump 22, a filter 23, an air source monitoring pressure gauge 24 and a debugging monitoring pressure gauge 25;
the first tire 1 and the second tire 2 with two different volumes are connected with an air outlet port of the air path conversion valve 3 through pipelines, and in a normal state, a channel in the air path conversion valve 3 conducts the first tire 1, the second tire 2 and the main air path 6;
the main gas circuit 6 is connected with one end of a normally open port of a first two-position three-way electromagnetic valve 9, and the tire monitoring pressure meter 10 is connected to the main gas circuit 6 and used for displaying tire pressure; the other end of the normally open port of the first two-position three-way electromagnetic valve 9 is connected with the tire valve air outlet port of a tire central inflation and deflation system product through a pipeline;
the pressure relay 8 and the manual switch S1 are connected in parallel to control the action of the first two-position three-way electromagnetic valve 9 and are used for controlling the on-off of the main gas path 6;
the first control air path 4 of the air path conversion valve 3 is connected with one end of a normally-off port of a sixth two-position three-way electromagnetic valve 15, the other end of the normally-off port of the sixth two-position three-way electromagnetic valve 15 is connected with a pipeline of a passage of the air pump 22, and the action of the sixth two-position three-way electromagnetic valve 15 is controlled by a switch S6;
the second control air path 5 of the air path switching valve 3 is connected with one end of a normally-off port of the seventh two-position three-way electromagnetic valve 16, the other end of the normally-off port of the seventh two-position three-way electromagnetic valve 16 is connected with a pipeline of a passage of the air pump 22, and the action of the seventh two-position three-way electromagnetic valve 16 is controlled by a switch S5;
the first tire 1 and the second tire 2 are two tire combinations with different volumes, the number of the tire combinations is 10, the tire combinations are respectively connected with 10 air path reversing valves 3, and then the tire combinations are respectively connected with 10 first two-position three-way electromagnetic valves 9 and a tire monitoring pressure gauge 10 to form an air path and a circuit which are used for controlling the capacity conversion of the tires of 10-wheel, 8-wheel, 6-wheel and 4-wheel vehicles and the on-off of a main air path 6;
a second two-position three-way electromagnetic valve 11, a third two-position three-way electromagnetic valve 12, a fourth two-position three-way electromagnetic valve 13 and a fifth two-position three-way electromagnetic valve 14 are connected in parallel, a normally-off port of the electromagnetic valves is connected with an air source end of a tire central inflation and deflation system product through a pipeline, an air source monitoring pressure gauge 24 is connected to the pipeline between the two-position three-way electromagnetic valve and the air source end of the tire central inflation and deflation system product and used for displaying air source pressure, the other end of the normally-off port of the second two-position three-way electromagnetic valve 11 is connected with an air outlet end of a first pressure reducing valve 17, an air inlet end of the first pressure reducing valve 17 is connected with an air pump 22 through a pipeline, and the action of the second two-position three-way electromagnetic valve 11 is controlled by a switch S2; the other end of the normally-off port of the third two-position three-way electromagnetic valve 12 is connected with the air outlet end of the second pressure reducing valve 18, the air inlet end of the second pressure reducing valve 18 is connected with the air pump 22 through a pipeline, and the action of the third two-position three-way electromagnetic valve 12 is controlled by a switch S3; the other ends of the normally-off ports of the fourth two-position three-way electromagnetic valve 13 and the fifth two-position three-way electromagnetic valve 14 are respectively connected with two one-way valves 21, the two one-way valves 21 are respectively connected with the air outlet ends of the third pressure reducing valve 19 and the fourth pressure reducing valve 20, the air inlet ends of the third pressure reducing valve 19 and the fourth pressure reducing valve 20 are connected with an air pump 22 through pipelines, and the on-off actions of the fourth two-position three-way electromagnetic valve 13 and the fifth two-position three-way electromagnetic valve 14 are controlled by a switch S4;
when the tire central inflation and deflation system is debugged, a debugging and monitoring pressure gauge 25 is connected between a tire valve and a control box assembly, and high-pressure gas used by the tire central inflation and deflation system debugging and control system is supplied by an air pump 22 and filtered by a filter 23.
The first two-position three-way electromagnetic valve 9 is connected with an alarm indicator light 7 in parallel and used for displaying the working state of the first two-position three-way electromagnetic valve 9.
The working principle of the debugging control system is as follows:
when the tire capacity of the debugged tire central inflation and deflation system product is close to the sum of the capacities of the first tire 1 and the second tire 2, the switch S5 and the switch S6 are in an off state, high-pressure air for enabling the air path reversing valve 3 to act is not arranged in the first control air path 4 and the second control air path 5, and the first tire 1 and the second tire 2 are connected into a whole through an air passage in the air path reversing valve 3, so that the debugging requirements of the tire central inflation and deflation system with the tire capacity are met.
When the tire capacity of the debugged tire central inflation and deflation system product is consistent with that of the first tire 1, the switch S6 is closed, the sixth two-position three-way electromagnetic valve 15 is switched on, high-pressure gas output by the air pump 22 enters the air path reversing valve 3 through the first control air path 4, and the air path reversing valve 3 closes an air path connected with the second tire 2, so that the main air path 6 can only be connected with the first tire 1, and the debugging requirement of the tire central inflation and deflation system with the tire capacity is met.
When the tire capacity of the debugged tire central inflation and deflation system product is consistent with that of the second tire 2, the switch S5 is closed, the seventh two-position three-way electromagnetic valve 16 is conducted, high-pressure air output by the air pump 22 enters the air path reversing valve 3 through the second control air path 5, and the air path reversing valve 3 closes an air path connected with the first tire 1, so that the main air path 6 can only be connected with the second tire 2, and the debugging requirement of the tire central inflation and deflation system with the tire capacity is met. The capacity conversion of more than ten tires can be realized by adding the same tire capacity conversion air passage at the position A.
The pressure of the air outlet of the first pressure reducing valve 17 is adjusted to be the stop pressure required by an overflow valve in a control box assembly of a tire central inflation and deflation system product, the pressure of the air outlet of the second pressure reducing valve 18 is adjusted to be the opening pressure required by the overflow valve in the control box assembly of the tire central inflation and deflation system product, the pressures of the air outlets of the third pressure reducing valve 19 and the fourth pressure reducing valve 20 are adjusted to be the air source pressure required by the tire central inflation and deflation system product, the pressure of the air outlet of the pressure reducing valves is adjusted by observing the value of an air source monitoring pressure gauge 24, and the check valve 21 is used for preventing the pressure difference between the air outlets of the third pressure reducing valve 19 and the fourth pressure reducing valve 20 from causing the air return of the pressure reducing valves.
When the tire central inflation and deflation system product is debugged, a tire valve of the tire central inflation and deflation system product is connected with a normally-open port of the first two-position three-way electromagnetic valve 9, an air source interface of the system product is connected with an air source port shown in the figure, a switch S2 is turned on, an overflow valve in a control box assembly of the system product is adjusted, an air source monitoring pressure gauge 24 is observed, a switch S2 is turned off, a switch S3 is turned on, the overflow valve in the control box assembly of the system product is adjusted, the air source monitoring pressure gauge 24 is observed and adjusted repeatedly, until the switch S2 is turned on, the overflow valve in the system product can be cut off, the switch S3 is turned on, the overflow valve in the system product can be opened, and the debugging of the overflow valve of the tire central inflation and deflation system is completed.
When the inflation function of the tire central inflation and deflation system product is detected, the switch S4 is opened, the fourth two-position three-way electromagnetic valve 13 and the fifth two-position three-way electromagnetic valve 14 work, high-pressure gas at the air source end of the system product enters the tire from the air outlet of the tire valve of the system product through the first two-position three-way electromagnetic valve 9, the main air passage 6 and the air passage reversing valve 3, the tire monitoring pressure gauge 10 is observed, the inflation time of the system product is recorded, the inflation function of the system product is detected, if the pressure exceeds the bearing pressure of the tire, the pressure relay 8 acts, the first two-position three-way electromagnetic valve 9 is switched on, the main air passage 6 is switched off, and the system product cannot inflate the tire.
When the product of the central tire inflation and deflation system is subjected to deflation function detection, the gas in the tire is discharged into the atmosphere through the tire valve of the product of the central tire inflation and deflation system through the gas path reversing valve 3, the main gas path 6 and the first two-position three-way electromagnetic valve 9, and the deflation pressure of the product of the central tire inflation and deflation system is observed through the debugging monitoring pressure gauge 25 on the gas path between the tire valve of the product of the observation system and the control box assembly of the product of the system.
When the pressure measuring function of the tire central inflation and deflation system product is detected, the display pressure of the system product is compared with the value of a tire monitoring pressure gauge 10;
when the product of the central inflation and deflation system of the tire needs to be replaced, the switch S1 is turned on, the first two-position three-way electromagnetic valve 9 works, the main air passage 6 is cut off, the gas in the tire cannot be discharged, and the replacement of the product of the system is not influenced.
When high-temperature, low-temperature and wet-heat performance tests are carried out, the length of a product connecting pipeline of a central tire inflation and deflation system is increased, and a system product is placed in a temperature and humidity regulating box and is tested according to the temperature environment requirements of the system product.
Example 1
The embodiment provides a debugging control system of a central tire inflation and deflation system, wherein two tire air inlet pipelines with different capacities are connected with an air outlet port of an air channel change-over valve, the air inlet port of the air channel change-over valve is connected with one end of a normally open port of a two-position three-way electromagnetic valve through a pipeline, a pipeline between the air channel change-over valve and the two-position three-way electromagnetic valve is connected with a pressure gauge, the pressure gauge displays tire pressure, and the other end of the normally open port of the two-position three-way electromagnetic valve is connected with an air outlet port of a tire valve of a central tire inflation and deflation system product through a pipeline; the two-position three-way electromagnetic valve controls the on-off of the two-position three-way electromagnetic valve through the parallel connection of two paths of the pressure switch and the manual switch, so as to control the on-off of the air inlet path of the air path conversion valve, and the two-position three-way electromagnetic valve is connected with an alarm indicator lamp in parallel to display the working state of the two-position three-way electromagnetic valve. Two control air paths of the air path conversion valve are respectively connected with one end of a normally-off port of two-position three-way electromagnetic valves, the other end of the port of the two-position three-way electromagnetic valve is connected with an air path pipeline of the air pump 22 through a pipeline, the actions of the two-position three-way electromagnetic valves are respectively controlled by a switch, and the on-off of the internal air path of the air path reversing valve 3 is controlled by controlling the two control air paths of the air path conversion valve. The air source end of a tire central inflation and deflation system product is connected with one end of a normally-off port of 4 two-position three-way electromagnetic valves through a pipeline, the pipeline is connected with a pressure gauge for displaying air source pressure, the other ends of the normally-off ports of the two-position three-way electromagnetic valves are respectively and directly connected with the air outlets of two pressure reducing valves through pipelines, the on-off actions of the two-position three-way electromagnetic valves are respectively controlled by two switches and are used for providing the cut-off pressure and the opening pressure of an overflow valve of the tire central inflation and deflation product, the other ends of the normally-off ports of the other two-position three-way electromagnetic valves are respectively connected with a one-way valve 21, the one-way valve 21 is respectively connected with the air outlets of the two pressure reducing valves, and the on-off actions of the two-position three-way electromagnetic valves are controlled by one switch and are used for providing the air source pressure when the tire central inflation and deflation system product works; the air inlets of all the pressure reducing valves are connected with a filter 23 through pipelines, and the filter 23 is connected with an air pump 22 through a pipeline; and a pressure gauge for displaying inflation and deflation pressure is connected between the tire valve and the control box assembly which are components of the debugged tire central inflation and deflation system product.
Through the connection of the system, the inflation function, the deflation function, the pressure measurement function and the automatic pressure regulation function of the central tire inflation and deflation system product are detected, the length of a connecting pipeline between the central tire inflation and deflation system product and the central tire inflation and deflation system debugging control system is changed, the central tire inflation and deflation system product is placed in the temperature and humidity regulating box, and the high-temperature, low-temperature and humidity performance test of the central tire inflation and deflation system product can be carried out.
Example 2
The embodiment provides a debugging control system of a central tire inflation and deflation system, which is applied to a debugging test of a central tire inflation and deflation system product of a wheeled vehicle. The two-position three-way electromagnetic valve of the main air path of the air path change-over valve is connected in parallel with two paths of a pressure switch and a manual switch to control the on-off of the two-position three-way electromagnetic valve, so that the on-off of the main air path of the air path change-over valve is controlled, and the two-position three-way electromagnetic valve is connected in parallel with an alarm indicator lamp to display the working state of the two-position three-way electromagnetic valve. The air source end of the tire central inflation and deflation system product is connected with 4 two-position three-way electromagnetic valves through pipelines, wherein two-position three-way electromagnetic valves control the closing and opening pressure of an overflow valve of the tire central inflation and deflation system product, the other two-position three-way electromagnetic valves are respectively connected with a one-way valve, and the one-way valves are respectively connected with a pressure reducing valve to control the air source pressure of the tire central inflation and deflation system product. Through the connection of the system, the inflation function, the deflation function, the pressure measurement function and the automatic pressure regulation function of the central tire inflation and deflation system product are detected, the length of a connecting pipeline between the central tire inflation and deflation system product and the central tire inflation and deflation system debugging control system is changed, the central tire inflation and deflation system product is placed in the temperature and humidity regulating box, and the high-temperature, low-temperature and humidity performance test of the central tire inflation and deflation system product can be carried out.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A central tire inflation and deflation system commissioning control system, comprising: the device comprises a first tire (1), a second tire (2), an air circuit reversing valve (3), a first control air circuit (4), a second control air circuit (5), a main air circuit (6), an alarm lamp (7), a pressure relay (8), a first two-position three-way electromagnetic valve (9), a tire monitoring pressure gauge (10), a second two-position three-way electromagnetic valve (11), a third two-position three-way electromagnetic valve (12), a fourth two-position three-way electromagnetic valve (13), a fifth two-position three-way electromagnetic valve (14), a sixth two-position three-way electromagnetic valve (15), a seventh two-position three-way electromagnetic valve (16), a first pressure reducing valve (17), a second pressure reducing valve (18), a third pressure reducing valve (19), a fourth pressure reducing valve (20), a one-way valve (21), an air pump (22), a filter (23), an air source monitoring pressure gauge (24) and a debugging monitoring pressure gauge (25);
the first tire (1) and the second tire (2) with two different capacities are connected with an air outlet port of the air path directional valve (3) through pipelines, and in a normal state, an internal channel of the air path directional valve (3) conducts the first tire (1), the second tire (2) and the main air path (6);
the main gas circuit (6) is connected with one end of a normally open port of the first two-position three-way electromagnetic valve (9), and the main gas circuit (6) is connected with a tire monitoring pressure meter (10) for displaying the tire pressure; the other end of the normally open port of the first two-position three-way electromagnetic valve (9) is connected with the tire valve air outlet port of a tire central inflation and deflation system product through a pipeline;
the pressure relay (8) and the manual switch S1 are connected in parallel to control the action of the first two-position three-way electromagnetic valve (9) and are used for controlling the on-off of the main gas path (6);
a first control air path (4) of the air path reversing valve (3) is connected with one end of a normally-off port of a sixth two-position three-way electromagnetic valve (15), the other end of the normally-off port of the sixth two-position three-way electromagnetic valve (15) is connected with a pipeline of a passage of the air pump (22), and the action of the sixth two-position three-way electromagnetic valve (15) is controlled by a switch S6;
a second control air path (5) of the air path reversing valve (3) is connected with one end of a normally-off port of a seventh two-position three-way electromagnetic valve (16), the other end of the normally-off port of the seventh two-position three-way electromagnetic valve (16) is connected with a pipeline of a passage of the air pump (22), and the action of the seventh two-position three-way electromagnetic valve (16) is controlled by a switch S5;
the first tire (1) and the second tire (2) are two tire combinations with different volumes, the number of the tire combinations is 10, the tire combinations are respectively connected with 10 air path reversing valves (3), and then the tire combinations are respectively connected with 10 first two-position three-way electromagnetic valves (9) and a tire monitoring pressure gauge (10) to form an air path and a circuit which are used for controlling the capacity conversion of the tires of 10-wheel, 8-wheel, 6-wheel and 4-wheel vehicles and the on-off of a main air path (6);
a second two-position three-way electromagnetic valve (11), a third two-position three-way electromagnetic valve (12), a fourth two-position three-way electromagnetic valve (13) and a fifth two-position three-way electromagnetic valve (14) are connected in parallel, a normally-off port of the electromagnetic valves is connected with an air source end of a tire central inflation and deflation system product through a pipeline, an air source monitoring pressure gauge (24) is connected on the pipeline between the two-position three-way electromagnetic valve and the air source end of the tire central inflation and deflation system product and used for displaying air source pressure, the other end of the normally-off port of the second two-position three-way electromagnetic valve (11) is connected with an air outlet end of a first pressure reducing valve (17), an air inlet end of the first pressure reducing valve (17) is connected with an air pump (22) through a pipeline, and the action of the second two-position three-way electromagnetic valve (11) is controlled by a switch S2; the other end of the normally-off port of the third two-position three-way electromagnetic valve (12) is connected with the air outlet end of the second pressure reducing valve (18), the air inlet end of the second pressure reducing valve (18) is connected with the air pump (22) through a pipeline, and the action of the third two-position three-way electromagnetic valve (12) is controlled by a switch S3; the other ends of the normally-off ports of the fourth two-position three-way electromagnetic valve (13) and the fifth two-position three-way electromagnetic valve (14) are respectively connected with two one-way valves (21), the two one-way valves (21) are respectively connected with the air outlet ends of a third reducing valve (19) and a fourth reducing valve (20), the air inlet ends of the third reducing valve (19) and the fourth reducing valve (20) are connected with an air pump (22) through pipelines, and the on-off actions of the fourth two-position three-way electromagnetic valve (13) and the fifth two-position three-way electromagnetic valve (14) are controlled by a switch S4;
when the tire central inflation and deflation system is used for product debugging, a debugging monitoring pressure gauge (25) is connected between a tire valve and a control box assembly, and high-pressure gas used by the tire central inflation and deflation system debugging control system is supplied by an air pump (22) and is filtered by a filter (23).
2. The debugging control system for central tire inflation and deflation system according to claim 1, wherein said first two-position three-way solenoid valve (9) is connected in parallel with a warning lamp (7) for displaying the working status of the first two-position three-way solenoid valve (9).
3. The system for debugging and controlling the central tire inflation and deflation system of claim 1, wherein when the tire capacity of the product of the debugged central tire inflation and deflation system is close to the sum of the capacities of the first tire (1) and the second tire (2), the switches S5 and S6 are in an off state, the first control air passage (4) and the second control air passage (5) are not filled with high-pressure air for actuating the air passage directional control valve (3), and the air passage inside the air passage directional control valve (3) connects the first tire (1) and the second tire (2) into a whole, so as to meet the debugging requirements of the central tire inflation and deflation system of the tire capacity.
4. The debugging control system of the central tire inflation and deflation system as claimed in claim 1, wherein when the tire capacity of the product of the central tire inflation and deflation system to be debugged is consistent with that of the first tire (1), the switch S6 is closed, the sixth two-position three-way solenoid valve (15) is turned on, the high-pressure gas output by the air pump (22) enters the air path reversing valve (3) through the first control air path (4), and the air path reversing valve (3) closes the air path connected with the second tire (2), so that the main air path (6) can only be connected with the first tire (1), and the debugging requirement of the central tire inflation and deflation system with the tire capacity is met.
5. The debugging control system of the central tire inflation and deflation system as claimed in claim 1, wherein when the tire capacity of the product of the central tire inflation and deflation system to be debugged is the same as that of the second tire (2), the switch S5 is closed, the seventh two-position three-way solenoid valve (16) is turned on, the high-pressure gas output by the air pump (22) enters the air path reversing valve (3) through the second control air path (5), and the air path reversing valve (3) closes the air path connected with the first tire (1), so that the main air path (6) can only be connected with the second tire (2), and the debugging requirement of the central tire inflation and deflation system with the tire capacity is met.
6. The debugging control system of the central tire inflation and deflation system of claim 1, wherein the pressure at the air outlet of the first pressure reducing valve (17) is adjusted to the stop pressure required by the relief valve in the control box assembly of the central tire inflation and deflation system product, the pressure at the air outlet of the second pressure reducing valve (18) is adjusted to the opening pressure required by the relief valve in the control box assembly of the central tire inflation and deflation system product, the pressure at the air outlets of the third pressure reducing valve (19) and the fourth pressure reducing valve (20) is adjusted to the air source pressure required by the central tire inflation and deflation system product, the pressure at the air outlet of the pressure reducing valves is adjusted by observing the value of the air source monitoring pressure gauge (24), and the check valve (21) is used for preventing the pressure difference between the air outlets of the third pressure reducing valve (19) and the fourth pressure reducing valve (20) from causing the air return of the pressure reducing valves.
7. The debugging control system of the central tire inflation and deflation system of claim 6, wherein during the debugging of the central tire inflation and deflation system, the tire valve of the central tire inflation and deflation system is connected to the normally open port of the first two-position three-way solenoid valve (9), the switch S2 is turned on, the overflow valve in the control box assembly of the system product is adjusted, the air source monitoring pressure gauge (24) is observed, the switch S2 is turned off, the switch S3 is turned on, the overflow valve in the control box assembly of the system product is adjusted, the air source monitoring pressure gauge (24) is observed, the adjustment is repeated until the switch S2 is turned on, the overflow valve in the system product can be cut off, the switch S3 is turned on, the overflow valve in the system product can be opened, and the debugging of the overflow valve of the central tire inflation and deflation system is completed.
8. The debugging control system of the central tire inflation and deflation system of claim 6, wherein when detecting the inflation function of the product of the central tire inflation and deflation system, the switch S4 is opened, the fourth two-position three-way solenoid valve (13) and the fifth two-position three-way solenoid valve (14) operate, the high-pressure gas at the gas source end of the system product enters the tire from the gas outlet of the tire valve of the system product through the first two-position three-way solenoid valve (9), the main gas circuit (6) and the gas circuit reversing valve (3), the tire monitoring pressure gauge (10) is observed, the inflation time of the system product is recorded, the inflation function of the system product is detected, if the pressure exceeds the bearing pressure of the tire, the pressure relay (8) acts to turn on the first two-position three-way solenoid valve (9), the main gas circuit (6) is turned off, and the system product cannot inflate the tire;
when the product of the central tire inflation and deflation system is subjected to deflation function detection, the gas in the tire is discharged into the atmosphere through the tire valve of the product of the central tire inflation and deflation system through the gas path reversing valve (3), the main gas path (6) and the first two-position three-way electromagnetic valve (9), and the deflation pressure of the product of the central tire inflation and deflation system is observed through a debugging monitoring pressure gauge (25) on the gas path between the tire valve of the product of the observation system and the control box assembly of the product of the system.
9. The debugging control system for the central tire inflation and deflation system as claimed in claim 6, wherein when the pressure measurement function of the central tire inflation and deflation system is tested, the display pressure of the system product is compared with the value of the tire monitoring pressure gauge (10).
10. The central tire inflation and deflation system commissioning control system of claim 6, wherein when the central tire inflation and deflation system product needs to be replaced, the switch S1 is turned on, the first two-position three-way solenoid valve (9) works to cut off the main air passage (6), so that the air in the tire cannot be exhausted, and the replacement of the system product is not affected.
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| CN202010583709.4A CN111735644B (en) | 2020-06-23 | 2020-06-23 | Debugging control system for central tire inflation and deflation system |
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| CN111735644B true CN111735644B (en) | 2022-02-08 |
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