CN115201004A - Oil tank fatigue test bed - Google Patents
Oil tank fatigue test bed Download PDFInfo
- Publication number
- CN115201004A CN115201004A CN202110385785.9A CN202110385785A CN115201004A CN 115201004 A CN115201004 A CN 115201004A CN 202110385785 A CN202110385785 A CN 202110385785A CN 115201004 A CN115201004 A CN 115201004A
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- CN
- China
- Prior art keywords
- cylinder group
- trachea
- cavity
- fatigue test
- oil tank
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an oil tank fatigue test bed, which comprises a cylinder group consisting of one or more cylinders, wherein pistons are arranged in single cylinders of the cylinder group, the pistons divide the inner cavity of the single cylinders of the cylinder group into a rodless cavity and a rod cavity, the oil pipe comprises two air pipes, the two air pipes are connected to two ends of the single cylinders of the cylinder group, pressure difference meters are connected to the two air pipes, two ends of each pressure difference meter are respectively communicated with the rodless cavity and the rod cavity, the bottom ends of the two air pipes are connected with test boxes, and the two test boxes are respectively communicated with the rodless cavity and the rod cavity.
Description
Technical Field
The invention relates to the technical field of test beds, in particular to an oil tank fatigue test bed.
Background
The oil tank manufactured by adopting the welding process has the possibility of welding defects which are difficult to find, if the defects are not found in time, the risk of oil leakage is increased, the service life of the oil tank is shortened, and in order to quickly expose the defects, the oil tank fatigue test bed is designed.
Disclosure of Invention
The invention aims to provide a fuel tank fatigue test bed to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the oil tank fatigue test bed comprises a cylinder group consisting of one or more cylinders, wherein pistons are arranged in the single cylinders of the cylinder group, and the pistons divide the inner cavities of the single cylinders of the cylinder group into a rodless cavity and a rod cavity;
the device is characterized by further comprising two air pipes, wherein the two air pipes are connected to two ends of the single air cylinder of the cylinder group, the two air pipes are connected with a pressure difference meter, two ends of the pressure difference meter are respectively communicated with the rodless cavity and the rod cavity, the bottom ends of the two air pipes are connected with test boxes, and the two test boxes are respectively communicated with the rodless cavity and the rod cavity.
Preferably, the connecting plate is installed to the push rod right-hand member of piston, ball nut is inlayed in the middle part of connecting plate, ball screw has been threaded connection in the ball nut, ball screw's end connection has servo motor.
Compared with the prior art, the invention has the beneficial effects that: the servo motor drives the piston to move left and right through the ball screw, so that alternating pressure is generated in the single cylinder and the test box, periodic tiny expansion and depression are generated on the side wall of the test box, exposure of welding defects can be accelerated through periodic deformation, the detection rate of hidden defects is improved, and a foundation is laid for subsequent leakage detection.
Drawings
Fig. 1 is an overall schematic view of the present invention.
In the figure: 1. cylinder group, 101, rodless cavity, 102, rod cavity, 2, piston, 3, connecting plate, 4, ball nut, 5, ball screw, 6, servo motor, 7, pressure difference meter, 8, air pipe, 9 and test box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the oil tank fatigue test bed comprises a cylinder group 1 consisting of one or more cylinders, wherein pistons 2 are arranged in all the single cylinders of the cylinder group 1, and the pistons 2 divide the inner cavity of each single cylinder of the cylinder group 1 into a rodless cavity 101 and a rod cavity 102;
still include trachea 8, the quantity of trachea 8 is two, and two trachea 8 are connected at the monomer cylinder both ends of cylinder group 1, are connected with differential pressure table 7 on two trachea 8, and differential pressure table 7's both ends are linked together with rodless chamber 101 and have pole chamber 102 respectively, and two trachea 8's bottom is connected with proof box 9, and two proof box 9 are linked together with rodless chamber 101 and have pole chamber 102 respectively.
When the test system is stopped, the piston 2 is located at the middle position of the single cylinder, the volumes of the rodless cavity 101 and the rod cavity 102 are the same, gas in the system, namely gas among the single cylinder, the test box 9 and the gas pipe 8, is completely sealed, gas exchange with the outside is not needed in the test process, and gas suction and exhaust noise cannot be generated.
Connecting plate 3 is installed to the push rod right-hand member of piston 2, and the middle part of connecting plate 3 is inlayed and is equipped with ball nut 4, and ball nut 4 internal screw joint has ball 5, and ball 5's end connection has servo motor 6.
The working principle is as follows: before connecting into two test boxes 9, confirm that piston 2 in the single cylinder is in the middle position of the single cylinder, connect two test boxes 9, make two test boxes 9 communicate rodless chamber 101 and have pole chamber 102 separately, the system is closed, because the single cylinder does not move, the chamber atmospheric pressure is the same about, so the pressure difference table 7 shows as zero, after starting the servo motor 6, the servo motor 6 drives the ball screw 5 to rotate, the ball screw 5 drives the ball nut 4 to do linear motion, thus drive the piston 2 to begin to move, when the piston 2 moves left, the total volume of rodless chamber 101 and left side test box 9 connected with it will reduce, the pressure rises, meanwhile, the total volume of having pole chamber 102 and test box 9 connected with it will increase, the pressure drops, when the piston 2 moves right, will produce the atmospheric pressure change opposite to this, when the piston 2 returns to the middle position through a left and right reciprocating motion, just complete a cycle, the servo motor 6 drives the piston 2 to do reciprocating motion, therefore produce the atmospheric pressure of continuous test in two test boxes 9, the bigger the volume of alternating oil tanks to be detected, the more the required quantity.
Different testing conditions can be obtained by changing parameters such as stroke, speed, acceleration and deceleration of the servo motor 6 through the controller, the testing strength can be improved by increasing the stroke, the testing frequency can be improved by increasing the speed, and the impact noise can be reduced by changing the acceleration and deceleration parameters.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. Oil tank fatigue test platform, its characterized in that: the cylinder group (1) comprises one or more cylinders, pistons (2) are arranged in all the single cylinders of the cylinder group (1), and the pistons (2) divide the inner cavity of each single cylinder of the cylinder group (1) into a rodless cavity (101) and a rod cavity (102);
still include trachea (8), the quantity of trachea (8) is two, two trachea (8) are connected at the monomer cylinder both ends of cylinder group (1), two be connected with differential pressure table (7) on trachea (8), the both ends of differential pressure table (7) are linked together with rodless chamber (101) and have pole chamber (102) respectively, two the bottom of trachea (8) is connected with proof box (9), two proof box (9) are linked together with rodless chamber (101) and have pole chamber (102) respectively.
2. The fuel tank fatigue test stand of claim 1, wherein: connecting plate (3) are installed to the push rod right-hand member of piston (2), ball nut (4) are inlayed and are equipped with in the middle part of connecting plate (3), ball (5) have been threaded in ball nut (4), the end connection of ball (5) has servo motor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110385785.9A CN115201004A (en) | 2021-04-11 | 2021-04-11 | Oil tank fatigue test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110385785.9A CN115201004A (en) | 2021-04-11 | 2021-04-11 | Oil tank fatigue test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115201004A true CN115201004A (en) | 2022-10-18 |
Family
ID=83571456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110385785.9A Pending CN115201004A (en) | 2021-04-11 | 2021-04-11 | Oil tank fatigue test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115201004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116101687A (en) * | 2023-04-13 | 2023-05-12 | 靖江新舟合金材料有限公司 | Step-type reclaimed material feeding device for remelting and refining zinc-aluminum alloy ingots |
-
2021
- 2021-04-11 CN CN202110385785.9A patent/CN115201004A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116101687A (en) * | 2023-04-13 | 2023-05-12 | 靖江新舟合金材料有限公司 | Step-type reclaimed material feeding device for remelting and refining zinc-aluminum alloy ingots |
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