CN113984373A - Self-closing valve mechanical durability test equipment and test method - Google Patents
Self-closing valve mechanical durability test equipment and test method Download PDFInfo
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- CN113984373A CN113984373A CN202111287092.2A CN202111287092A CN113984373A CN 113984373 A CN113984373 A CN 113984373A CN 202111287092 A CN202111287092 A CN 202111287092A CN 113984373 A CN113984373 A CN 113984373A
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- 238000012360 testing method Methods 0.000 title claims abstract description 79
- 238000010998 test method Methods 0.000 title claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 102
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000004880 explosion Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 14
- 230000006698 induction Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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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
- G01M13/003—Machine valves
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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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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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
- 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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- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The utility model provides a self-closing valve machinery durability test equipment and test method, belongs to the technical field of filling equipment, includes: the table top is provided with a fixing mechanism and a vertical sliding rail, and the vertical sliding rail is provided with a pushing mechanism and a clamp mechanism; the sensing mechanism is a displacement distance measuring sensor and is used for monitoring different air pressure states of the self-closing valve to be detected and feeding back a monitoring result to the controller; the controller is used for controlling an external testing machine and the mechanical durability testing equipment to work; the controller is electrically connected with the fixing mechanism, the clamp mechanism, the sensing mechanism, the pushing mechanism and the display mechanism. The testing precision and efficiency of the mechanical durability detection of the self-closing valve are improved, the quality and reliability of a self-closing valve product are improved, and the gas using safety of a user is effectively improved.
Description
Technical Field
The disclosure relates to the technical field of filling equipment, in particular to self-closing valve mechanical durability testing equipment and a testing method.
Background
The gas self-closing valve for pipeline is installed on the pipeline of low-pressure gas system, and when the gas supply pressure of pipeline is under-pressure or over-pressure, it can automatically close the device without using electricity or other external power, and must be manually reset. When the conditions of gas cut-off, abnormal gas supply, rubber tube falling and the like occur, the self-closing valve can be automatically closed, and gas leakage is prevented.
At present, a plurality of manufacturers of the pipeline gas self-closing valve have different scales, and the consistency and the quality of products are different. Most manufacturers lack necessary detection means to carry out factory detection on products according with national standards. The testing items of the pipeline gas self-closing valve are numerous, wherein the mechanical durability is a key index for judging whether the self-closing valve meets the standard or not. At present, most manufacturers do not detect or detect in a mode of manually building a simple test tool, detection standards and detection means do not exist, detection results are inaccurate, manual detection efficiency is low, quality and reliability of self-closing valve products cannot be guaranteed, and safety of gas use of users cannot be guaranteed.
Also there is the testboard special to the self-closing valve among the prior art, a device that is used for pipeline gas self-closing valve super under-voltage self-closing performance to detect as the patent publication of CN112461535A, including detecting the stage body, detecting anchor clamps part, automatic pressure regulating part, detect anchor clamps part, automatic pressure regulating part and pass through the bottom plate and install on detecting the stage body, it includes circular cylinder to detect anchor clamps part, circular cylinder passes through the dog and installs in bottom plate one end, install out the gas piece on the circular cylinder, the piece of admitting air is installed to the bottom plate other end, be provided with the sealing member between piece and the bottom plate of admitting air, be provided with the end cap on the circular cylinder piston rod with the piece of admitting air install the biax cylinder with one end on the bottom plate. The disclosed automatic pressure regulating part is simple, the pressure regulating range is limited, the self-closing valve is inconvenient to operate when being installed on the detection clamp part, and the self-closing valve provided with a valve opening lifting button (without a shifting fork) is inconvenient to simulate to be lifted.
The patent of publication number CN113405792A provides a self-closing valve multi-state testing tool, which is connected with an external testing machine and specifically comprises a testing bench, wherein a fixing mechanism, a clamp mechanism, an induction mechanism, a moving mechanism, a display mechanism and a controller are arranged on the testing bench; the fixing mechanism is used for positioning and fixing the self-closing valve to be detected; the moving mechanism is used for moving the clamp mechanism up and down; the clamp mechanism is used for grabbing the self-closing valve to be tested, and moves up and down under the action of the moving mechanism so as to adjust different air pressure states of the self-closing valve to be tested; the induction mechanism is used for monitoring different air pressure states of the self-closing valve to be detected and feeding back a monitoring result to the controller; the controller controls the external testing machine to work according to the monitoring result of the sensing mechanism and feeds the testing result back to the display mechanism. When the device is actually used, the sensing connecting rod in the sensing mechanism is easy to slide or is touched by mistake, so that the accuracy of a test result is influenced.
In the prior art, most manufacturers do not detect or adopt a mode of manually building a simple test tool to detect the mechanical durability of the self-closing valve, the detection result is inaccurate, the manual detection efficiency is low, and reliable and convenient-to-operate mechanical durability test equipment for the self-closing valve is lacked.
Disclosure of Invention
The self-closing valve mechanical durability testing equipment is efficient, reliable and easy to operate, can improve the quality and reliability of self-closing valve products, and guarantees the safety of gas use for users.
When the self-closing valve is in a decompression state, the reset button pull rod is sucked, the self-closing valve is closed, and the valve opening lifting button needs to be lifted manually.
Another concept of the present disclosure is to arrange a displacement distance measuring sensor above the reset button pull rod, and determine whether the self-closing valve is in a pressure loss state, a normal state or an overpressure state currently through sensor distance measurement. The problem of among the prior art, when using the response connecting rod to judge the state, the response connecting rod easily slides or is touched by the mistake, influences the test result accuracy is solved, and displacement distance measuring sensor is more accurate reliable.
The self-closing valve is automatically positioned by the test equipment, so that the manual installation steps of the self-closing valve are simplified, and the detection efficiency is improved.
The self-closing valve mechanical durability test equipment provided by the disclosure is connected with an external test machine and used for automatically testing the mechanical durability of the self-closing valve. It is provided with a table board, an induction mechanism, a display mechanism and a controller; the table top is provided with a fixing mechanism and a vertical sliding rail, and the vertical sliding rail is provided with a pushing mechanism and a clamp mechanism;
the fixing mechanism is used for positioning and fixing the self-closing valve to be detected;
the pushing mechanism is used for controlling the clamp mechanism to move up and down along the vertical sliding rail;
the clamp mechanism is used for simulating the operation of manually lifting and pulling the valve lifting knob;
the induction mechanism is used for monitoring different air pressure states of the self-closing valve to be detected and feeding back a monitoring result to the controller;
the controller is used for controlling an external testing machine to work, adjusting the air pressure state in the self-closing valve, calculating a testing result and controlling the display mechanism to display;
the controller is electrically connected with the fixing mechanism, the clamp mechanism, the sensing mechanism, the pushing mechanism and the display mechanism.
In some embodiments, the fixing mechanism includes a fixing base plate fixed on the table top, a first plug and a second plug disposed at two ends of the fixing base plate, and a horizontal sliding rail disposed between the first plug and the second plug.
Furthermore, a horizontal sliding block for placing the self-closing valve to be tested is slidably mounted on the horizontal sliding rail, the first plug is immovable, the second plug is horizontally pushed towards the first plug under the driving action of the driving cylinder to push the middle self-closing valve to be tested to move towards the first plug, and finally the self-closing valve to be tested is clamped between the first plug and the second plug, so that the fixing and the positioning of the self-closing valve to be tested are realized, and the air tightness of the self-closing valve to be tested during testing is ensured.
In some embodiments, the self-closing valve is provided with a movable joint, the movable joint is used for optimizing the installation process of the self-closing valve to be tested and increasing the air tightness between the self-closing valve and the first plug, when the self-closing valve to be tested is fixed, one end of the self-closing valve is usually screwed onto the plug, and due to the fact that the operation space is limited, the operation is inconvenient, the self-closing valve is difficult to screw, the test result is easy to influence and even safety accidents occur.
Furthermore, a U-shaped clamping groove is formed in the horizontal sliding block, and is clamped at the joint of the self-closing valve and the movable joint, so that the explosion prevention effect is achieved, and the stability of the connecting structure can be enhanced.
In some embodiments, the first plug is provided with an air inlet connected to an external testing machine, and the second plug is provided with an air outlet connected to the external testing machine.
In some embodiments, the pushing mechanism comprises a double-head cylinder, a first vertical sliding block and a second vertical sliding block, and a cylinder rod at the upper end of the double-head cylinder is fixedly arranged at the top of the vertical sliding rail; the cylinder body of the double-head cylinder is connected with the vertical slide rail through the first vertical slide block and can slide along the vertical slide rail; and a cylinder rod at the lower end of the double-head cylinder is connected with a second vertical sliding block, and the second vertical sliding block can slide along a vertical sliding rail.
Furthermore, the pushing mechanism is further provided with a first limiting component, and the first limiting component is used for limiting the vertical stroke of the double-head cylinder. Through this setting, can make the vertical slider of second possess bigger slip stroke.
Furthermore, the clamp mechanism is arranged on the second vertical sliding block, when the self-closing valve to be tested is manually placed on the table top, the height of the clamp mechanism can be adjusted upwards, and enough hand operation space is reserved; during testing, the height of the clamp mechanism can be adjusted downwards to contact the self-closing valve.
In some embodiments, the first limiting part comprises a limiting point and a limiting block, the double-head cylinder drives the limiting block to slide synchronously when moving vertically, and meanwhile, the upper side and/or the lower side of the limiting block are/is provided with limiting points for blocking the limiting block, so that the sliding stroke of the double-head cylinder is limited.
Furthermore, the limiting block is connected with a cylinder body of the double-head cylinder, or connected with the first vertical sliding block.
Furthermore, the limiting point is a baffle, a limiting groove or a column body with adjustable height.
In some embodiments, the gripper mechanism comprises a finger cylinder connected to the second vertical slide, two mechanical grippers connected to two parallel jaws of the finger cylinder.
Furthermore, the mechanical gripper is driven by the finger cylinder to move up and down to lift the valve lifting button upwards.
Furthermore, a second limiting component is arranged on the finger cylinder and used for limiting the lifting height of the valve opening lifting button and avoiding damage to the valve opening lifting button or the self-closing valve.
In some embodiments, the sensing mechanism is a laser ranging sensor, and the sensing mechanism can detect the displacement condition of the reset button pull rod and send the displacement condition to the controller, so as to count the switching-off times of the self-closed valve.
Further, during testing, the laser ranging sensor, the mechanical gripper and the valve opening lifting button are basically located on the same plumb line, the second limiting component is an L-shaped plate, and a through hole for laser to pass through is formed in the second limiting component.
In some embodiments, the display mechanism comprises an indicator light and a display screen, and the test result can be visually displayed for the reference of an operator.
The present disclosure can also provide a method for testing mechanical durability of a self-closing valve, comprising the steps of:
placing the self-closing valve to be tested on the horizontal sliding block, and starting the driving cylinder to enable the first plug and the second plug to clamp the self-closing valve to be tested;
starting the double-head cylinder and adjusting the clamp mechanism;
starting an external test machine;
and (4) judging the opening and closing times of the self-closing valve and automatically stopping detection.
Compared with the prior art, the method and the device have the advantages that the mechanical durability of the self-closing valve is accurately and efficiently tested, the testing efficiency is high, and the problems of inaccurate manual detection and low efficiency are solved. The whole control system realizes the kinetic energy of automatic pressurization, depressurization and the like, detects the working state of the self-closing valve in real time and improves the detection efficiency. In a word, the self-closing valve mechanical durability detection method improves the detection efficiency of the mechanical durability of the self-closing valve, improves the quality and reliability of a self-closing valve product, and effectively improves the gas use safety of a user.
Drawings
The present disclosure will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the present disclosure. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is a general view of the disclosed self-closing valve mechanical durability test apparatus;
FIG. 2 is a side view of the self-closing valve mechanical durability test apparatus of the present disclosure;
FIG. 3 is a partial schematic structural view of the mechanical durability testing device of the self-closing valve of the present disclosure;
FIG. 4 is a schematic structural view of another state of FIG. 3;
10, a table top; 2. a fixing mechanism; 21. fixing the bottom plate; 22. a horizontal slide rail; 23. a horizontal slider; 24. a first plug; 25. a second plug; 26. a driving cylinder; 27. an air inlet; 28. an air outlet; 3. a clamp mechanism; 31. a finger cylinder; 32. a mechanical gripper; 41. a laser ranging sensor; 5. a pushing mechanism; 51. a double-ended cylinder; 52. a vertical slide rail; 53. a first vertical slide block; 54. a first limit member; 55. a second vertical slide block; 56. a second limiting component; 6. a display mechanism; 7. a self-closing valve.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
As shown in fig. 1, the present disclosure shows a self-closing valve mechanical durability test apparatus, which is connected with an external test machine, for mechanical durability detection of the self-closing valve, and is capable of detecting the closing times of under-pressure closing and over-pressure closing of the self-closing valve. The mechanical durability is a key index for judging whether the self-closing valve meets the standard or not, and is related to the use safety of pipeline fuel gas.
The self-closing valve mechanical durability test device comprises a table top 10, wherein a fixing mechanism 2, a clamp mechanism 3, a sensing mechanism, a pushing mechanism 5, a display mechanism 6 and a controller (not shown in the figure) are arranged on the table top 10. The controller is electrically connected with the fixing mechanism 2, the clamp mechanism 3, the sensing mechanism, the pushing mechanism 5 and the display mechanism 6 and controls the normal operation of each mechanism.
The specific structure is as follows:
the fixing mechanism 2 is used for positioning and fixing the self-closing valve 7 to be tested and comprises a fixing bottom plate 21, a horizontal sliding rail 22, a horizontal sliding block 23, a first plug 24, a second plug 25 and a driving cylinder 26.
Further, the fixed bottom plate 21 is laid on the table top 10, the horizontal slide rail 22 is fixed on the fixed bottom plate 21, the horizontal slide block 23 can slide along the horizontal slide rail 22, a station for positioning and fixing the self-closing valve 7 to be tested is arranged on the horizontal slide block 23, and before testing, the self-closing valve 7 to be tested is only required to be installed on the station.
Further, a first plug 24 and a second plug 25 are respectively disposed at two ends of the fixed base plate 21, and the horizontal slide rail 22 is disposed between the first plug 24 and the second plug 25.
Further, the first plug 24 is not movable, the second plug 25 is horizontally pushed towards the first plug 24 under the driving action of the driving cylinder 26, the middle horizontal sliding block 23 and the self-closing valve 7 to be tested on the middle horizontal sliding block are pushed to approach the first plug 24, and finally the self-closing valve 7 to be tested is clamped between the first plug 24 and the second plug 25, so that the fixing and the positioning of the self-closing valve 7 to be tested are realized, and the air tightness of the self-closing valve 7 to be tested during testing is ensured.
Furthermore, the self-closing valve 7 can be provided with a movable joint, the movable joint is used for optimizing the installation process of the self-closing valve to be tested and increasing the air tightness between the self-closing valve and the first plug 24, when the self-closing valve 7 to be tested is fixed, one end of the self-closing valve 7 is usually screwed to the plug firstly, due to the fact that the operation space is limited, the operation is inconvenient, the self-closing valve is difficult to screw, the test result is easy to influence and even safety accidents occur, in the conventional automatic test equipment for the self-closing valve, the movable joint is firstly installed on the self-closing valve 7, then the self-closing valve 7 is clamped on the corresponding station, and then the first plug 24 and the second plug 25 are used for clamping the self-closing valve 7 from two ends to realize sealing, so that the operation is simpler, more convenient and safer.
Furthermore, a U-shaped clamping groove is formed in the horizontal sliding block 23, and is clamped at the joint of the self-closing valve 7 and the movable joint, so that the explosion prevention effect is achieved, and the stability of the connecting structure can be enhanced.
Further, an air inlet 27 connected with an external testing machine is arranged on the first plug 24, and an air outlet 28 connected with the external testing machine is arranged on the second plug 25.
The pushing mechanism 5 is used for controlling the clamping mechanism 3 to move up and down along the vertical slide rail 52, as shown in figures 3 and 4,
the device comprises a double-head cylinder 51, a first vertical sliding block 53 and a second vertical sliding block 55, wherein a cylinder rod at the upper end of the double-head cylinder 51 is fixedly arranged at the top of a vertical sliding rail 52; the cylinder body of the double-head cylinder 51 is connected with a vertical slide rail 52 through a first vertical slide block 53 and can slide along the vertical slide rail 52; the cylinder rod at the lower end of the double-head cylinder 51 is connected with a second vertical sliding block 55, and the second vertical sliding block 55 can slide along the vertical sliding rail 52.
Further, the pushing mechanism 5 is further provided with a first limiting component 54, and the first limiting component 54 is used for limiting the vertical stroke of the double-headed cylinder 51. With this arrangement, the second vertical slider 55 can have a larger slide stroke.
In this embodiment, the first limiting part 54 includes a limiting block connected to the double-headed cylinder 51, and a limiting groove for limiting the limiting block to move vertically. The limiting groove is formed by a U-shaped notch of the U-shaped part, the limiting block moves in the limiting groove, and the inner wall of the U-shaped notch of the U-shaped part can limit the stroke of the limiting block.
In other embodiments, the first limiting part 54 includes a limiting point and a limiting block, the double-headed cylinder 51 drives the limiting block to slide synchronously when moving vertically, and meanwhile, the upper side and/or the lower side of the limiting block is provided with a limiting point for blocking the limiting block, thereby limiting the sliding stroke of the double-headed cylinder 51.
Further, the limiting block is connected with the cylinder body of the double-head cylinder 51, or connected with the first vertical sliding block 53.
Furthermore, the limiting point is a baffle, a limiting groove or a column body with adjustable height.
As shown in fig. 3 and 4, the clamping mechanism 3 is used for simulating the operation of manually lifting and pulling the valve lifting knob, the clamping mechanism 3 is mounted on the second vertical slide block 55, and when the self-closing valve 7 to be measured is manually put into the table top 10, the height of the clamping mechanism 3 can be adjusted upwards, so that enough hand operation space is reserved; during testing, the height of the clamp mechanism 3 can be adjusted downwards to contact the self-closing valve 7.
Specifically, the clamping mechanism 3 includes a finger cylinder 31 connected to the second vertical slider 55, and two mechanical grippers 32 connected to two parallel jaws of the finger cylinder 31. Under the effect of the double-head cylinder 51 of the pushing mechanism 5, the second vertical sliding block 55 is pushed to move up and down, the finger cylinder 31 is made to move up and down, when the mechanical gripper 32 is moved to be flush with the valve opening lifting button of the self-closing valve 7, the finger cylinder 31 is started to work, the two mechanical grippers 32 are used for gripping the valve opening lifting button of the self-closing valve 7 to be detected, and the mechanical gripper 32 is driven to move up and down to lift the valve opening lifting button upwards through the stretching of the finger cylinder 31.
Further, a second limiting component 56 is arranged on the cylinder body of the finger cylinder 31 and used for limiting the lifting height of the valve opening lifting button and avoiding the valve opening lifting button or the self-closing valve 7 from being damaged.
The induction mechanism is used for monitoring different air pressure states of the self-closing valve 7 to be detected and feeding back a monitoring result to the controller. The sensing mechanism is set as a laser ranging sensor 41, can detect the displacement condition of the reset button pull rod and send the displacement condition to the controller, and counts the switching-off times of the self-closing valve 7.
Further, after the self-closing valve 7 to be measured is clamped, as shown in fig. 4, the laser distance measuring sensor 41, the mechanical handle 32 and the valve opening lifting knob are basically located on the same plumb line.
Further, the second position-limiting component 56 is an L-shaped plate, and a through hole for laser to pass through is formed in the L-shaped plate.
Further, the double-head cylinder 51 and/or the driving cylinder 26 are provided with paired double-hole button boxes, so that the double-head cylinder and/or the driving cylinder 26 can be manually controlled, and functions of installing a self-closing valve, resetting, calibrating and the like are realized.
The controller is used for controlling the external testing machine to work so as to adjust the air pressure state in the self-closing valve 7, calculate the testing result and control the display mechanism 6 to display the result.
The display mechanism 6 comprises an indicator light and a display screen, and can visually display a test result for an operator to refer to.
The induction mechanism feeds the air pressure state back to the controller, and the controller controls the testing machine to perform the repeatability test of the self-closing valve. And finally, feeding back the opening and closing times of the self-closing valve to the display mechanism 6 for displaying, wherein the opening and closing times are generally 6000 times in testing, a green lamp is normally on in the testing process, a red lamp is turned on after the testing is finished, and a buzzer sounds to remind an operator.
The test method using the test equipment is as follows:
placing the self-closing valve to be tested on the horizontal sliding block 23, and starting the driving cylinder 26 to enable the first plug 24 and the second plug 25 to clamp the self-closing valve to be tested;
starting the double-head cylinder 51 and adjusting the clamp mechanism 3;
starting an external test machine;
and (4) judging the opening and closing times of the self-closing valve and automatically stopping detection.
In conclusion, the automatic closing valve mechanical durability testing device accurately and efficiently tests the mechanical durability of the automatic closing valve, is high in testing efficiency, and avoids the problems of inaccurate manual detection and low efficiency. The whole control system realizes the kinetic energy of automatic pressurization, depressurization and the like, and improves the efficiency under the automatic production. In a word, the method improves the testing precision and efficiency of the self-closing valve mechanical durability performance detection, improves the quality and reliability of self-closing valve products, and effectively improves the gas use safety of users.
In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the descriptions related to "first", "second", etc. in the present disclosure are only for description purposes, do not particularly refer to an order or sequential meaning, and do not limit the present disclosure, but merely distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present disclosure.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the scope of the present disclosure, therefore, it should be understood that the appended claims are intended to cover all such modifications as would fall within the scope of the present disclosure.
Claims (10)
1. A self-closing valve mechanical durability test equipment which characterized in that: the method comprises the following steps:
the table top is provided with a fixing mechanism and a vertical sliding rail, and the vertical sliding rail is provided with a pushing mechanism and a clamp mechanism;
the fixing mechanism is used for positioning and fixing the self-closing valve to be detected;
the pushing mechanism is used for controlling the clamp mechanism to move up and down along the vertical sliding rail;
the clamp mechanism is used for simulating the operation of manually lifting and pulling the valve lifting knob;
the sensing mechanism is a displacement distance measuring sensor and is used for monitoring different air pressure states of the self-closing valve to be detected and feeding back a monitoring result to the controller;
the controller is used for controlling an external testing machine and the mechanical durability testing equipment to work;
the display mechanism comprises a display screen and an indicator light;
the controller is electrically connected with the fixing mechanism, the clamp mechanism, the sensing mechanism, the pushing mechanism and the display mechanism.
2. A self-closing valve mechanical durability test apparatus according to claim 1, wherein: the fixing mechanism includes:
the fixed bottom plate is fixed on the table top;
the first plug and the second plug are respectively arranged at two ends of the fixed bottom plate and are used for clamping the self-closing valve to be tested from two sides;
the horizontal sliding rail is arranged between the first plug and the second plug;
the driving cylinder is used for pushing the second plug;
the horizontal sliding rail is provided with a horizontal sliding block for placing the self-closing valve to be tested, and the horizontal sliding block can slide along the horizontal sliding rail.
3. A self-closing valve mechanical durability test apparatus according to claim 2, wherein: the first plug is provided with an air inlet connected with an external testing machine, and the second plug is provided with an air outlet connected with the external testing machine.
4. A self-closing valve mechanical durability test apparatus according to claim 2, wherein: the self-closing valve is provided with a movable joint, and the horizontal sliding block is provided with an anti-explosion U-shaped clamping groove.
5. A self-closing valve mechanical durability test apparatus according to claim 1, wherein: the pushing mechanism comprises a double-head cylinder, and the double-head cylinder is installed on the vertical sliding rail through a first vertical sliding block.
6. Self-closing valve mechanical durability test equipment according to claim 5, characterized in that: the test equipment also comprises a first limiting component used for limiting the stroke of the double-head cylinder.
7. A self-closing valve mechanical durability test apparatus according to claim 1, wherein: the clamp mechanism comprises a finger cylinder and a mechanical gripper.
8. Self-closing valve mechanical durability test equipment according to claim 7, characterized in that: the clamp mechanism further comprises a second limiting component used for limiting the stroke of the mechanical hand grab.
9. A self-closing valve mechanical durability test apparatus according to claim 1, wherein: the sensing mechanism is a laser displacement distance measuring sensor.
10. A method of testing mechanical durability of a self-closing valve using the apparatus of any of claims 1 to 9, comprising the steps of:
assembling a movable joint on the self-closing valve to be tested;
placing the self-closing valve to be tested on the horizontal sliding block, and starting the driving cylinder to enable the first plug and the second plug to clamp the self-closing valve to be tested;
starting the double-head cylinder and adjusting the clamp mechanism;
starting an external test machine;
and (4) judging the opening and closing times of the self-closing valve and automatically stopping detection.
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| CN202111287092.2A CN113984373A (en) | 2021-11-02 | 2021-11-02 | Self-closing valve mechanical durability test equipment and test method |
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