CN111638054A - Locomotive unit brake fatigue test device and test method - Google Patents
Locomotive unit brake fatigue test device and test method Download PDFInfo
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- CN111638054A CN111638054A CN202010646749.9A CN202010646749A CN111638054A CN 111638054 A CN111638054 A CN 111638054A CN 202010646749 A CN202010646749 A CN 202010646749A CN 111638054 A CN111638054 A CN 111638054A
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- G01M13/00—Testing of machine parts
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Abstract
The invention provides a locomotive unit brake fatigue test device which comprises a base, a wheel simulation unit and an action control module, wherein the base is used for installing a locomotive unit brake, the wheel simulation unit and the action control module are arranged on the base, the wheel simulation unit is matched with the locomotive unit brake to realize wheel brake simulation, and the action control module is used for controlling the action of the locomotive unit brake. The fatigue test device for the locomotive unit brake can realize four actions of independently controlling the unit brake to inflate, exhaust, pull the bracelet to release and return the bracelet to the original position through the action control module, and meets the requirement of a type test on the requirement of independently testing the bracelet to release. The invention also provides a method for testing by adopting the fatigue testing device, and the testing method is simple to operate, low in manual intervention degree and capable of reducing the labor intensity of personnel.
Description
Technical Field
The invention relates to the technical field of locomotive component fatigue tests, in particular to a locomotive unit brake fatigue test device and a test method.
Background
Some components on a locomotive require fatigue testing, such as locomotive unit brakes.
Aiming at the existing unit brake installed on a power-concentrated motor car, the fatigue test device has the advantages of high degree of automation and less manual intervention, the fatigue test needs manual intervention to be completed, a large amount of manpower materials are consumed when the unit brake is subjected to the fatigue test after function improvement and fault analysis every time, the test period is long, and the expected effect of the test is difficult to achieve.
In view of the above, there is a need for a fatigue testing device and a testing method for a locomotive unit brake to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a locomotive unit brake fatigue test device, which has the following specific technical scheme:
the fatigue test device comprises a base, a wheel simulation unit and an action control module, wherein the base is used for mounting a locomotive unit brake, the wheel simulation unit and the action control module are arranged on the base, the wheel simulation unit is matched with the locomotive unit brake to realize wheel brake simulation, and the action control module is used for controlling the action of the locomotive unit brake.
Preferably among the above technical scheme, action control module is including control box and cylinder, cylinder and locomotive unit stopper are connected to the control box, realize controlling the locomotive unit stopper through the control box and aerify or exhaust, and then realize the simulation of wheel braking, the cylinder withdrawal or stretch out and realize that locomotive unit stopper simulation pulling bracelet is separated or the bracelet is separated the playback.
Preferably, in the above technical scheme, the control box comprises a control unit, the cylinder and the locomotive unit brake are both connected with the control unit, and the control unit controls the cylinder and the locomotive unit brake to act.
Preferably, in the above technical solution, the control unit is a PLC or a single chip microcomputer.
Preferably, in the above technical solution, the wheel simulation unit includes a mounting plate and an arc plate, the arc plate is disposed on the base through the mounting plate, the arc plate is disposed corresponding to a brake valve of a brake of the locomotive unit, the arc plate is disposed in a shape matching with the brake valve, and the arc plate is used for simulating a wheel; the locomotive unit brake is inflated to realize that the brake valve is pushed to the arc plate to simulate wheel braking, and the locomotive unit brake is exhausted to realize brake valve retraction.
Preferably, in the above technical solution, the mounting plate is movably arranged on the base to adjust the distance between the arc plate and the brake valve;
or an adjusting guard plate is arranged between the arc plate and the mounting plate, and the distance between the arc plate and the brake valve is adjusted by adjusting the number and/or the thickness of the adjusting guard plate.
Preferably, in the technical scheme, the base comprises an installation vertical plate, an air cylinder installation seat and a bottom plate, the installation vertical plate and the air cylinder installation seat are both arranged on the bottom plate, the installation vertical plate is used for installing a locomotive unit brake, and the air cylinder installation seat is used for installing an air cylinder.
Preferably, in the above technical scheme, the mounting plate is arranged on the bottom plate, and a connecting plate for mounting the control box is arranged between the mounting vertical plate and the mounting plate.
Preferably in the technical scheme, the bottom plate and the connecting plate are respectively provided with a waist-shaped hole, and the bottom plate and the mounting plate and the connecting plate and the mounting plate can be movably connected through the waist-shaped holes, so that the distance between the arc plate and the brake valve can be adjusted.
The technical scheme of the invention has the following beneficial effects:
(1) the fatigue test device for the locomotive unit brake comprises a base, a wheel simulation unit and an action control module, wherein the base is used for mounting the locomotive unit brake, the wheel simulation unit is used for simulating wheels, and the action control module is used for controlling a brake valve of the locomotive unit brake to extend out or retract so as to realize wheel brake simulation; the independent control unit brake can be inflated, exhausted, pulled to release the bracelet and the bracelet is released to return four actions through the control box and the air cylinder, and the requirement that the bracelet is released to carry out independent test in a type test is met.
(2) The fatigue test device for the locomotive unit brake can realize the recording and displaying of the test times (can realize the recording of 8-bit test times) through the control box, and accurately record and store the test times; the test device realizes automatic start and stop after the test process is set, can complete about 1 ten thousand tests every day after 24h of uninterrupted operation, has high test efficiency, and does not need to be watched by people. Different test requirements are set through the control box, and fatigue tests of brakes of different models are met. The problems that in the prior art, the automation degree of a fatigue test is low, and manual intervention is needed in the test process are effectively solved.
(3) According to the fatigue test device for the locomotive unit brake, the mounting plate is movably arranged on the base, namely the bottom plate, so that the distance between the arc plate and the brake valve is adjusted; or an adjusting arc plate is arranged between the arc plate and the mounting plate, and the distance between the arc plate and the brake valve is adjusted by adjusting the number and/or the thickness of the adjusting arc plate; the distance between the arc plate and the brake valve can be adjusted to a proper position, the test requirement is met, and meanwhile, the requirement for assembling the test device can be reduced.
The invention also discloses a test method for carrying out fatigue test on the locomotive unit brake by adopting the fatigue test device, which comprises the following steps:
the locomotive unit brake is arranged on the base and connected with the control box and the cylinder, and the following fatigue tests are carried out:
(1) the control box controls the brake of the locomotive unit to be inflated, and the brake valve pushes the arc plate in the wheel simulation unit to simulate the braking of the wheel; the control box controls the locomotive unit brake to exhaust, and the brake valve retracts;
(2) in the emergency situation that the brake valve cannot be retracted in the process of inflating and exhausting the locomotive unit brake, the air cylinder retracts to pull the hand ring to release, and the brake valve is forcibly retracted; the cylinder stretches out to realize the return-to-home of the bracelet.
The test method is simple to operate, low in manual intervention degree and capable of reducing labor intensity of personnel. Can realize that the independent control unit stopper is aerifyd, exhaust, pulling bracelet and separate four actions of returning to the place with the bracelet, satisfy the type test and need separate experimental requirement to the bracelet.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the fatigue testing apparatus according to the present invention;
FIG. 2 is a schematic diagram of the application of the fatigue testing apparatus of the present invention;
the locomotive unit brake device comprises a cylinder 1, a cylinder 2, an installation vertical plate 3, a connecting plate 4, a control box 5, an installation plate 6, an adjustment guard plate 7, an arc plate 8, a locomotive unit brake 9, a cylinder installation seat 10 and a bottom plate.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1-2, the fatigue test device for the locomotive unit brake comprises a base, a wheel simulation unit and an action control module, wherein the base is used for mounting the locomotive unit brake 8, the wheel simulation unit and the action control module are both arranged on the base, the wheel simulation unit is matched with the locomotive unit brake 8 to realize wheel brake simulation, and the action control module is used for controlling the action of the locomotive unit brake 8.
Action control module is including control box 4 and cylinder 1, cylinder 1 and locomotive unit stopper 8 are connected to control box 4, realize through control box 4 that control locomotive unit stopper 8 aerifys or exhausts, and then realize the simulation of wheel braking, 1 withdrawal of cylinder or stretch out and realize that locomotive unit stopper 8 simulation pulling bracelet is separated or the bracelet is separated the playback.
The piston rod of cylinder is separated with the bracelet and is connected, the bracelet is separated and is belonged to locomotive unit stopper partly, and its effect is when locomotive unit stopper's brake valve meets the trouble and can't withdraw, separates through the pulling bracelet and realizes that the brake valve forces to withdraw.
The control box 4 comprises a control unit, the air cylinder 1 and the locomotive unit brake 8 are both connected with the control unit, and the control unit controls the air cylinder 1 and the locomotive unit brake 8 to act.
Preferably, the control unit is a PLC or a single chip microcomputer. The single chip microcomputer is preferably selected in the embodiment, and the functions of air cylinder inflation and deflation, bracelet pulling and releasing, test frequency recording, system air-break protection, automatic start and stop, emergency braking and the like are completed under the control of the single chip microcomputer. The fatigue test progress of the brake is completed about 1 ten thousand times every day, the fatigue test of the brake is completed efficiently, and the test cost is greatly reduced.
The wheel simulation unit comprises a mounting plate 5 and an arc plate 7, the arc plate 7 is arranged on the base through the mounting plate 5, the arc plate 7 is arranged corresponding to a brake valve of a locomotive unit brake 8, the arc plate 7 is matched with the brake valve in shape, and the arc plate 7 is used for simulating a wheel; the locomotive unit brake 8 is charged to generate strong braking force to push the brake valve to the arc plate 7 to simulate wheel braking, and the locomotive unit brake 8 is exhausted to realize brake valve retraction.
The base comprises an installation vertical plate 2, an air cylinder installation seat 9 and a bottom plate 10, wherein the installation vertical plate 2 and the air cylinder installation seat 9 are arranged on the bottom plate 10, the installation vertical plate 2 is used for installing a locomotive unit brake 8, and the air cylinder installation seat 9 is used for installing an air cylinder 1.
The mounting plate 5 is arranged on the bottom plate 10, and a connecting plate 3 for mounting the control box 4 is arranged between the mounting vertical plate 2 and the mounting plate 5.
The mounting plate 5 is movably arranged on the mounting plate to realize the adjustment of the distance between the arc plate 7 and the brake valve; waist-shaped holes are formed in the bottom plate 10 and the connecting plate 3, the bottom plate 10 and the mounting plate 5 and the connecting plate 3 and the mounting plate 5 can be movably connected through the waist-shaped holes, and therefore the distance between the arc plate 7 and the brake valve can be adjusted. The bottom and the mounting plate and the connecting plate and the mounting plate are connected through bolts, and then the distance between the arc plate and the brake valve can be adjusted through the kidney-shaped hole.
Alternatively, an adjusting guard plate 6 is arranged between the arc plate 7 and the mounting plate 5, and the distance between the arc plate 7 and the brake valve is adjusted by adjusting the number and/or thickness of the adjusting guard plates 6, as shown in fig. 1-2, in the embodiment, the latter adjusting method is adopted.
The method for testing the fatigue of the locomotive unit brake by adopting the fatigue testing device comprises the following specific steps:
install locomotive unit brake on the base to be connected with control box and cylinder, connect locomotive unit brake and cylinder with the air supply, carry out following fatigue test:
test 1: the control box controls the brake of the locomotive unit to be inflated, and the brake valve pushes the arc plate in the wheel simulation unit to simulate the braking of the wheel; the control box controls the locomotive unit brake to exhaust, and the brake valve retracts;
test 2: in the emergency situation that the brake valve cannot be retracted in the process of inflating and exhausting the locomotive unit brake, the air cylinder retracts to pull the hand ring to be released, the brake valve is forcibly retracted, and the air cylinder extends out to release the hand ring;
in the test 1, the fatigue test times of the inflating and exhausting actions of the locomotive unit brake are not less than 10 ten thousand. The fatigue test times of the whole set of actions of inflating, exhausting, pulling the bracelet and separating the homing of the bracelet of the locomotive unit brake in the test 2 are not less than 1 ten thousand times, the brake valve fails to recover the probabilistic fault belonging to the locomotive unit brake in the working process, and the test device of the embodiment can perform the fatigue test on the bracelet separating action in the locomotive unit brake.
The specific test requirements of test 1 and test 2 may be set according to the test outline.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The fatigue test device for the locomotive unit brake is characterized by comprising a base, a wheel simulation unit and an action control module, wherein the base is used for mounting the locomotive unit brake (8), the wheel simulation unit and the action control module are arranged on the base, the wheel simulation unit is matched with the locomotive unit brake (8) to realize wheel brake simulation, and the action control module is used for controlling the action of the locomotive unit brake (8).
2. The locomotive unit brake fatigue test device of claim 1, characterized in that, the action control module includes control box (4) and cylinder (1), cylinder (1) and locomotive unit brake (8) are connected to control box (4), realize through control box (4) that control locomotive unit brake (8) aerify or exhaust, and then realize the wheel braking simulation, cylinder (1) is retracted or is stretched out and realize that locomotive unit brake (8) simulate pulls the bracelet and separate the homing or bracelet.
3. The locomotive unit brake fatigue testing device according to claim 2, characterized in that the control box (4) comprises a control unit, the cylinder (1) and the locomotive unit brake (8) are both connected with the control unit, and the control of the cylinder (1) and the locomotive unit brake (8) is realized by the control unit.
4. The locomotive unit brake fatigue testing device of claim 3, wherein the control unit is a PLC or a single chip microcomputer.
5. The locomotive unit brake fatigue test device according to any one of claims 2-4, wherein the wheel simulation unit comprises a mounting plate (5) and an arc plate (7), the arc plate (7) is arranged on the base through the mounting plate (5), the arc plate (7) is arranged corresponding to a brake valve of the locomotive unit brake (8), the arc plate (7) is arranged in a shape matching with the brake valve, and the arc plate (7) is used for simulating a wheel; the locomotive unit brake (8) is charged to realize that the brake valve is pushed to the arc plate (7) to simulate wheel braking, and the locomotive unit brake (8) is exhausted to realize brake valve retraction.
6. Locomotive unit brake fatigue testing device according to claim 5, characterized in that said mounting plate (5) is movably arranged on said base to enable adjustment of the distance between the arc plate (7) and the brake valve;
or an adjusting guard plate (6) is arranged between the arc plate (7) and the mounting plate (5), and the distance between the arc plate (7) and the brake valve is adjusted by adjusting the number and/or the thickness of the adjusting guard plate (6).
7. The locomotive unit brake fatigue test device of claim 6, wherein the base comprises a mounting upright plate (2), a cylinder mounting seat (9) and a bottom plate (10), the mounting upright plate (2) and the cylinder mounting seat (9) are both arranged on the bottom plate (10), the mounting upright plate (2) is used for mounting the locomotive unit brake (8), and the cylinder mounting seat (9) is used for mounting the cylinder (1).
8. Locomotive unit brake fatigue testing device according to claim 7, characterized in that the mounting plate (5) is arranged on the bottom plate (10), and a connecting plate (3) for mounting a control box (4) is arranged between the mounting riser (2) and the mounting plate (5).
9. The locomotive unit brake fatigue test device of claim 8, wherein the bottom plate (10) and the connecting plate (3) are provided with kidney-shaped holes, and the kidney-shaped holes are used for movably connecting the bottom plate (10) and the mounting plate (5) and the connecting plate (3) and the mounting plate (5), so as to adjust the distance between the arc plate (7) and the brake valve.
10. A method for testing fatigue of a locomotive unit brake by using the fatigue testing apparatus according to any one of claims 1 to 9, comprising the steps of:
the locomotive unit brake is arranged on the base and connected with the control box and the cylinder, and the following fatigue tests are carried out:
(1) the control box controls the brake of the locomotive unit to be inflated, and the brake valve pushes the arc plate in the wheel simulation unit to simulate the braking of the wheel; the control box controls the locomotive unit brake to exhaust, and the brake valve retracts;
(2) in the emergency situation that the brake valve cannot be retracted in the process of inflating and exhausting the locomotive unit brake, the air cylinder retracts to pull the hand ring to release, and the brake valve is forcibly retracted; the cylinder stretches out to realize the return-to-home of the bracelet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010646749.9A CN111638054A (en) | 2020-07-07 | 2020-07-07 | Locomotive unit brake fatigue test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010646749.9A CN111638054A (en) | 2020-07-07 | 2020-07-07 | Locomotive unit brake fatigue test device and test method |
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| Publication Number | Publication Date |
|---|---|
| CN111638054A true CN111638054A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010646749.9A Pending CN111638054A (en) | 2020-07-07 | 2020-07-07 | Locomotive unit brake fatigue test device and test method |
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| Country | Link |
|---|---|
| CN (1) | CN111638054A (en) |
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2020
- 2020-07-07 CN CN202010646749.9A patent/CN111638054A/en active Pending
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