CN111964893A - Bellows exocoel effective area measuring device - Google Patents
Bellows exocoel effective area measuring device Download PDFInfo
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- CN111964893A CN111964893A CN202010878835.2A CN202010878835A CN111964893A CN 111964893 A CN111964893 A CN 111964893A CN 202010878835 A CN202010878835 A CN 202010878835A CN 111964893 A CN111964893 A CN 111964893A
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- 238000009434 installation Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 85
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 2
- 238000007792 addition Methods 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/28—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring areas
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Abstract
The invention discloses a device for measuring the effective area of an outer cavity of a corrugated pipe, which comprises a working platform, wherein a first pipe passing seat and a second pipe passing seat are fixedly arranged at the top of the working platform, a digital display screen is arranged on the front surface of the first pipe passing seat, a pressure pump is fixedly arranged at the top of the working platform, a connecting pipe is fixedly communicated with the output end of the pressure pump, one end of the connecting pipe, far away from the pressure pump, is fixedly communicated with an installation pipe through a joint, a limiting sleeve is fixedly arranged on the outer surface of the installation pipe, a precise pressure gauge is arranged at the top of the limiting sleeve, a force sensor is arranged on the side surface of the second pipe passing seat, and a cover body is fixedly arranged between the tops of the. The invention can quickly and accurately measure the effective area of the corrugated pipe, and can obtain the corresponding effective area value of the corrugated pipe when the corrugated pipe is used in different pressure environments according to the two sets of recorded data and a calculation formula.
Description
Technical Field
The invention relates to the technical field of effective area measuring equipment of corrugated pipes, in particular to an effective area measuring device for an outer cavity of a corrugated pipe.
Background
The corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction, is widely applied in instruments and meters, has effective area which is one of basic performance parameters of the corrugated pipe, and represents the capability of converting pressure into concentrated force of the corrugated pipe, and the effective area is an important parameter in the occasion of converting the pressure into the concentrated force to be output by utilizing the corrugated pipe.
The traditional bellows effective area measuring device can only use a formula to obtain a fixed value of an effective area, however, the bellows is in the use process, along with the change of pressure, the value of the effective area is also continuously changed, and therefore the traditional measuring device for the bellows effective area has lower accuracy of the measuring result.
The utility model with publication number CN209656264U discloses a device for testing the effective area of a corrugated pipe, which can quickly perform fixed detection on the corrugated pipe through the arrangement of a piston type oil pump, a guide pillar, a cushion block, a nut and other structures; but the device is when using, needs manual the nut of screwing to lock the fixed plate, and the error is great, probably leads to the height of fixed plate both sides uneven for cushion surface and bellows top surface can not paste and, the gas leakage condition appears in the test procedure even, influences bellows effective area's measurement accuracy.
Disclosure of Invention
The invention aims to provide a bellows outer cavity effective area measuring device, which is used for solving the problem that the traditional bellows effective area measuring device can only obtain a fixed effective area value, but the actually measured effective area of the bellows is variable, and the effective area deviation value is larger under certain working conditions of ultrahigh pressure; in the measuring process, the traditional measuring device relies on manual tightening of the nut to fix the corrugated pipe, so that the locking degrees of the two sides of the corrugated pipe are not guaranteed to be completely consistent, the air tightness of the detection equipment is not high, and the accuracy of the detection result is not high; the traditional mode reliability that utilizes the link to compress tightly the footstock is lower, when the clamp plate wearing and tearing appear, the clamp plate thickness reduces, leads to closing plate and draw-in groove cooperation sealed back, and the clamp plate can not play the effect of compressing tightly to the footstock, therefore can not guarantee the stability of bellows in the measurement process.
The technical problems to be solved by the invention are as follows:
(1) how to ensure the tightness of the corrugated pipe and the cover body in the measuring process;
(2) how to measure the effective area of the corrugated pipe when the corrugated pipe is used in different pressure environments.
The purpose of the invention can be realized by the following technical scheme:
a device for measuring the effective area of an outer cavity of a corrugated pipe comprises a working platform, wherein a first pipe passing seat and a second pipe passing seat are fixedly installed at the top of the working platform, a digital display screen is arranged on the front surface of the first pipe passing seat, pipe grooves are formed between two side surfaces of the first pipe passing seat and the second pipe passing seat, a pressure pump is fixedly installed at the top of the working platform, a connecting pipe is fixedly communicated with the output end of the pressure pump, an installation pipe is fixedly communicated with one end, far away from the pressure pump, of the connecting pipe through a joint, a limiting sleeve is fixedly installed on the outer surface of the installation pipe, a precise pressure gauge is arranged at the top of the limiting sleeve, a force sensor is arranged on the side surface of the second pipe passing seat, and a cover body is fixedly installed between the tops of;
the bottom wall in the cover body is fixedly communicated with a straight pipe, the bottom of the straight pipe is fixedly communicated with the top of an installation pipe, a base is fixedly installed on the bottom wall in the cover body, connecting blocks are fixedly installed on two sides of the base, a corrugated pipe is arranged on the top of the base, a top seat is arranged on the top of the corrugated pipe, fixed blocks are fixedly installed on two side faces of the top seat, an ejector rod is arranged between the fixed blocks and the connecting blocks, a sealing plate is arranged on the top of the top seat, a clamping groove matched with the sealing plate is formed in the top wall in the cover body;
the sealing mechanism comprises a threaded rod, the bottom of the threaded rod is movably connected with the top of the sealing plate through a bearing, a rotary table is fixedly mounted at the top of the threaded rod, a handle is arranged at the top of the rotary table, a threaded sleeve is connected to the outer surface of the threaded rod in a threaded manner, fixing frames are fixedly mounted on two side surfaces of the threaded sleeve, a sliding rod is fixedly mounted at one end of each fixing frame, which is far away from the threaded sleeve, a fixing seat is fixedly mounted at the bottom of the sliding rod, and the side surface;
the output end of the force sensor is electrically connected with the input end of the digital display screen, and the probe of the force sensor extends to the inside of the cover body and is connected with the bottom of the base.
Furthermore, a reinforcing rib is fixedly mounted between the side face of the sliding rod and the side face of the fixing frame, a sliding sleeve is movably connected to the outer surface of the sliding rod, an installation rod is fixedly mounted on the side face, close to the threaded rod, of the sliding sleeve, an installation block is fixedly mounted on the side face, far away from the sliding sleeve, of the installation rod, and the bottom of the installation block is fixedly connected with the top face of the sealing plate.
Furthermore, the top surface of the top seat is provided with a groove, the bottom of the sealing plate is fixedly provided with three connecting frames, a pressing plate is fixedly arranged between the bottoms of the three connecting frames, and the bottom surface of the pressing plate is contacted with the bottom wall in the groove.
Furthermore, a supporting rod is fixedly installed between the bottom of the limiting sleeve and the top surface of the working platform, and installation frames are fixedly installed between the top surfaces of the first tube passing seat and the second tube passing seat and the side surface of the cover body.
Furthermore, a wedge-shaped opening is formed in the side face of the sealing plate, the side face of the sealing plate is matched with the inner wall of the clamping groove through the wedge-shaped opening, and an O-shaped sealing ring is arranged between the side face of the sealing plate and the inner wall of the clamping groove.
Furthermore, the ejector rod is wavy, and the upper end and the lower end of the ejector rod are fixedly connected with the fixed block and the connecting block through bolts respectively.
Further: one end, far away from the pressure pump, of the installation pipe extends to the inside of the straight pipe, and a rubber sealing ring is arranged at the joint of the installation pipe and the straight pipe.
Further, a use method of the corrugated pipe outer cavity effective area measuring device comprises the following steps:
the first step is as follows: placing the corrugated pipe to be measured on a base inside the cover body through the clamping groove, and locking the fixing block and the ejector rod by using a bolt so as to fix the corrugated pipe;
the second step is that: the handle is held by a hand to enable the turntable to rotate clockwise, so that the threaded rod is driven to rotate clockwise, the height of the threaded rod relative to the threaded sleeve is reduced, the sealing plate is pushed to move downwards until the side face of the sealing plate is matched with the inner wall of the clamping groove, and the bottom surface of the pressing plate is only attached to the inner bottom wall of the groove, so that the top seat is pressed tightly, and the fixing of the corrugated pipe and the sealing of the cover body are;
the third step: the method comprises the steps that the test is started after air in a corrugated pipe is completely exhausted, before the test is formally started, a force sensor and a digital display screen are opened and reset, then a pressure pump gradually increases the pressure, a series of pressure resistance data such as G1, G2 and G3 … … can be displayed on a precision pressure gauge, meanwhile, a series of pressure data such as F1, F2 and F3 … … can be displayed on the digital display screen connected with the force sensor due to the fact that the pressure is transmitted to the force sensor, and the two sets of data are recorded in a one-to-one correspondence mode;
the fourth step: the symbol of the effective area is A, the unit is cm2(ii) a The pressure gauge inputs the pressure resistance, the symbol is G, the unit is kgf/cm2(ii) a The digital display outputs a pressure symbol of F in kgf. The effective area can be obtained according to the formula: a is G/F; if the effective area at a certain point of pressure is known, Ax is Gx/Fx, (x indicates a certain point of pressure resistance).
The invention has the beneficial effects that: the invention has the following beneficial effects:
1. the sealing mechanism can rotate the threaded rod to lower the position of the sealing plate until the side face of the sealing plate is matched and sealed with the inner wall of the clamping groove, the bottom face of the pressing plate is tightly attached to the inner bottom wall of the groove, the pressing plate is used for pressing the corrugated pipe above the top seat, and meanwhile, the sliding sleeve, the mounting rod, the mounting block and other structures are arranged to ensure that the whole sealing plate moves in the vertical direction, so that nuts are prevented from being manually screwed at two sides, the phenomenon that one side is higher and the other side is lower when the sealing plate is matched with the clamping groove is prevented, the sealing performance of a cover body when the sealing plate is matched and sealed with the clamping groove is ensured, and the accuracy;
2. the effective area of the corrugated pipe can be quickly and accurately measured by the aid of the structures such as the arranged force sensor, the digital display screen and the precise pressure gauge, and is an equivalent area, and pressure acts on the area to generate equal axial force;
3. the limiting sleeve and the precision pressure gauge can be supported by the supporting rod, the connection between the cover body and the first pipe passing seat and the connection between the cover body and the second pipe passing seat can be enhanced by the mounting frame, the connection between the sliding rod and the mounting frame can be enhanced by the reinforcing rib, so that the stability of the device in operation is improved, the sliding sleeve, the mounting rod, the mounting block and other structures can ensure that the sealing plate moves in the vertical direction, the two sides of the sealing plate can be simultaneously matched and sealed with the clamping groove, the cover body is in a sealing state in the measuring process, and the accuracy of the effective area measuring result of the corrugated pipe is improved;
4. can make the closing plate carry out elasticity through the spring that sets up and the telescopic link and press to the footstock, when utilizing the closing plate to seal the cover body, before closing plate and draw-in groove cooperation are sealed, the clamp plate bottom surface just can be with the contact of recess inner bottom wall, and along with the closing plate highly constantly descends, the reverse action effect that the spring shrink produced is used in on the clamp plate, make the clamp plate closely hug closely with recess inner bottom wall all the time and, the sealing performance of equipment and the stability of bellows when the test have been guaranteed, in addition, along with the continuous wearing and tearing of clamp plate in the use, when clamp plate thickness reduces, the mode that utilizes elasticity to press still can make clamp plate and recess inner bottom wall paste with, thereby the life of extension clamp plate, just change the clamp plate when wearing and tearing appear in.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a front view of the structure of embodiment 1 of the present invention;
FIG. 2 is a front sectional view of the structure of example 1 of the present invention;
FIG. 3 is a sectional view showing the structure of a cover in embodiment 1 of the present invention;
FIG. 4 is a front sectional view of the structure of the header and the sealing plate in embodiment 1 of the present invention;
fig. 5 is a front sectional view of the structure of the top seat and the sealing plate in embodiment 2 of the present invention.
In the figure: 1. a working platform; 2. a first stem passing seat; 3. a second stem passing seat; 4. a digital display screen; 5. a pipe groove; 6. a pressure pump; 7. a connecting pipe; 8. installing a pipe; 9. a limiting sleeve; 10. a precision pressure gauge; 11. a force sensor; 12. a cover body; 13. a straight pipe; 14. a base; 15. connecting blocks; 16. a bellows; 17. a top seat; 18. a fixed block; 19. a top rod; 20. a sealing plate; 21. a sealing mechanism; 22. a threaded rod; 23. a turntable; 24. a threaded sleeve; 25. a fixed mount; 26. a slide bar; 27. a fixed seat; 28. reinforcing ribs; 29. a sliding sleeve; 30. mounting a rod; 31. mounting blocks; 32. a groove; 33. a connecting frame; 34. pressing a plate; 35. a strut; 36. a mounting frame; 37. a spring; 38. a telescopic rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
Example 1
As shown in fig. 1-4, a bellows external cavity effective area measuring device comprises a working platform 1, a first tube passing base 2 and a second tube passing base 3 are fixedly installed at the top of the working platform 1, mounting frames 36 are fixedly installed between the top surfaces of the first tube passing base 2 and the second tube passing base 3 and the side surface of a cover body 12, the mounting frames 36 are used for strengthening the connection between the first tube passing base 2, the second tube passing base 3 and the cover body 12, so as to improve the stability of the device during operation, a digital display screen 4 is arranged on the front surface of the first tube passing base 2, the digital display screen 4 is used for displaying a force signal value output by a force sensor 11 in real time, so as to record the force signal value, tube grooves 5 are respectively arranged between the two side surfaces of the first tube passing base 2 and the second tube passing base 3, a pressure pump 6 is fixedly installed at the top of the working platform 1, and the pressure pump 6 is used for pressurizing the inside, the output end of the pressure pump 6 is fixedly communicated with a connecting pipe 7, one end of the connecting pipe 7, which is far away from the pressure pump 6, is fixedly communicated with an installation pipe 8 through a joint, one end of the installation pipe 8, which is far away from the pressure pump 6, extends into the straight pipe 13, a rubber sealing ring is arranged at the joint of the installation pipe 8 and the straight pipe 13, the sealing performance of the joint of the installation pipe 8 and the straight pipe 13 is improved, the leakage phenomenon at the joint of the installation pipe 8 and the straight pipe 13 is prevented, a limit sleeve 9 is fixedly arranged on the outer surface of the installation pipe 8, a support rod 35 is fixedly arranged between the bottom of the limit sleeve 9 and the top surface of the working platform 1, the support rod 35 is used for supporting the installation pipe 8 and the precision pressure gauge 10, the precision pressure gauge 10 is arranged at the top of the limit sleeve 9, the precision pressure gauge 10 is used, the output end of the force sensor 11 is electrically connected with the input end of the digital display screen 4, a force signal value detected by the force sensor 11 is transmitted to the digital display screen 4 in real time for displaying, so that a pressure value can be recorded conveniently, a probe of the force sensor 11 extends into the cover body 12 and is connected with the bottom of the base 14, and the cover body 12 is fixedly arranged between the tops of the first tube passing seat 2 and the second tube passing seat 3;
the straight pipe 13 is fixedly communicated with the inner bottom wall of the cover body 12, the bottom of the straight pipe 13 is fixedly communicated with the top of the installation pipe 8, the base 14 is fixedly installed on the inner bottom wall of the cover body 12, the base 14 is used for placing the corrugated pipe 16, the connecting blocks 15 are fixedly installed on two sides of the base 14, the corrugated pipe 16 is arranged on the top of the base 14, the corrugated pipe 16 is arranged between the top seat 17 and the base 14 and is fixed through two ejector rods 19, the top seat 17 is arranged on the top of the corrugated pipe 16, the groove 32 is formed in the top surface of the top seat 17, three connecting frames 33 are fixedly installed at the bottom of the sealing plate 20, a pressure plate 34 is fixedly installed between the bottoms of the three connecting frames 33, the top seat 17 is tightly pressed by the pressure plate 34, and after the detection is completed, the pressure plate 34 can be directly controlled to ascend, so that, the operation is simple and convenient, the bottom surface of the pressing plate 34 is contacted with the bottom wall of the groove 32, the fixed blocks 18 are fixedly arranged on both side surfaces of the top seat 17, ejector rods 19 are arranged between the two fixed blocks 18 and the two connecting blocks 15, the ejector rods 19 are used for fixing the corrugated pipe 16, the shape of the ejector rods 19 is wave-shaped, the upper end and the lower end of each ejector rod 19 are respectively and fixedly connected with the fixed blocks 18 and the connecting blocks 15 through bolts, the ejector rods 19 are fixed between the fixed blocks 18 and the connecting blocks 15 through bolts and are used for fixing the corrugated pipe 16, the top of the top seat 17 is provided with a sealing plate 20, the side surface of the sealing plate 20 is provided with a wedge-shaped opening, the side surface of the sealing plate 20 is matched with the inner wall of the clamping groove through the wedge-shaped opening, the sealing plate 20 can be completely matched, a clamping groove matched with the sealing plate 20 is formed in the inner top wall of the cover body 12, and a sealing mechanism 21 is arranged at the top of the sealing plate 20;
the sealing mechanism 21 comprises a threaded rod 22, the bottom of the threaded rod 22 is movably connected with the top of the sealing plate 20 through a bearing, a rotary plate 23 is fixedly mounted at the top of the threaded rod 22, a handle is arranged at the top of the rotary plate 23, the handle is held by a hand, the rotary plate 23 is rotated, so that the threaded rod 22 rotates, the position of the threaded rod 22 is changed in height relative to the threaded sleeve 24, the sealing plate 20 is controlled to ascend and descend, the threaded sleeve 24 is connected to the outer surface of the threaded rod 22 through threads, fixing frames 25 are fixedly mounted on two side surfaces of the threaded sleeve 24, the fixing frames 25 are used for fixing and limiting the threaded sleeve 24, a sliding rod 26 is fixedly mounted at one end, far away from the threaded sleeve 24, of each fixing frame 25, reinforcing ribs 28 are fixedly mounted between the side surfaces of, sliding rod 26 surface swing joint has a sliding sleeve 29, the side fixed mounting that sliding sleeve 29 is close to threaded rod 22 has installation pole 30, the side fixed mounting that sliding sleeve 29 was kept away from to installation pole 30 has installation piece 31, installation piece 31 bottom and sealing plate 20 top surface fixed connection for when sealing plate 20 reciprocated, sliding sleeve 29 at sealing plate 20 both sides also slided on sliding rod 26, utilizes sliding rod 26 to carry out the spacing of direction all around to sealing plate 20, when further guaranteeing sealing plate 20 and draw-in groove cooperation sealed, the phenomenon that one side height is low can not appear in sealing plate 20, sliding rod 26 bottom fixed mounting has fixing base 27, fixing base 27 side and cover body 12 side fixed connection.
A use method of a corrugated pipe outer cavity effective area measuring device comprises the following steps:
the first step is as follows: placing the corrugated pipe 16 to be measured on the base 14 in the cover body 12 through the clamping groove, and locking the fixing block 18 and the ejector rod 19 by using bolts so as to fix the corrugated pipe 16;
the second step is that: the handle is held by a hand to enable the rotating disc 23 to rotate clockwise, so that the threaded rod 22 is driven to rotate clockwise, the height of the threaded rod 22 relative to the threaded sleeve 24 is reduced, the sealing plate 20 is pushed to move downwards until the side face of the sealing plate 20 is matched with the inner wall of the clamping groove, the bottom face of the pressing plate 34 is only attached to the inner bottom wall of the groove 32, the top seat 17 is pressed tightly, and the fixing of the corrugated pipe 16 and the sealing of the cover body 12 are completed;
the third step: the test is started after air in the corrugated pipe 16 is completely exhausted, before the test is formally started, the force sensor 11 and the digital display screen 4 are opened and cleared, then the pressure pump 6 gradually increases the pressure, a series of pressure-resistant data such as G1, G2, G3 … … and the like can be displayed on the precision pressure gauge 10, meanwhile, as the pressure is transmitted to the force sensor 11, a series of pressure data such as F1, F2, F3 … … and the like can be displayed on the digital display screen 4 connected with the force sensor, and the two groups of data are recorded in a one-to-one correspondence manner;
the fourth step: the symbol of the effective area is A, the unit is cm2(ii) a The pressure gauge 10 inputs a pressure resistance, which is represented by G and has a unit of kgf/cm2(ii) a The digital display 4 outputs a pressure symbol F in kgf. The effective area can be obtained according to the formula: a is G/F; if the effective area at a certain point of pressure is known, Ax is Gx/Fx, (x indicates a certain point of pressure resistance).
Example 2
As shown in fig. 5, the present embodiment is different from embodiment 1 in that: the bottom of the sealing plate 20 is fixedly provided with three uniformly distributed springs 37, the bottoms of the three springs 37 are fixedly connected with the top surface of the pressure plate 34, two symmetrical telescopic rods 38 are further arranged between the pressure plate 34 and the sealing plate 20, and the two telescopic rods 38 and the three springs 37 are alternately arranged;
in this embodiment, the sealing plate 20 can be elastically pressed against the top seat 17 by replacing the three connecting frames 33 with the three springs 37, and when the cover body 12 is sealed by the sealing plate 20, before the sealing plate 20 is fitted and sealed with the slot, the bottom surface of the pressing plate 34 can be in contact with the bottom wall of the groove 32, and along with the continuous descending of the height of the sealing plate 20, the reverse acting force generated by the contraction of the spring 37 acts on the pressure plate 34, so that the pressure plate 34 is always tightly attached to the inner bottom wall of the groove 32, the sealing performance of the device and the stability of the corrugated pipe 16 during the test are ensured, in addition, as the platen 34 wears during use, as the platen 34 decreases in thickness, the pressing plate 34 can still be attached to the bottom wall of the recess 32 by means of elastic pressing, thereby prolonging the service life of the pressure plate 34 and eliminating the need to replace the pressure plate 34 when the pressure plate 34 becomes worn; in addition, the two telescopic rods 38 arranged between the pressure plate 34 and the sealing plate 20 can prevent the position of the pressure plate 34 from deviating relative to the sealing plate 20, and ensure that the pressure plate 34 only moves in the vertical direction, so that the pressure plate 34 is ensured to apply a vertical downward acting force to the top seat 17, and the stability of the corrugated pipe 16 in the test process is further improved.
A device for measuring the effective area of an external cavity of a corrugated pipe is characterized in that the corrugated pipe to be measured is placed on a base in a cover body through a clamping groove, a fixing block and an ejector rod are locked by bolts, the corrugated pipe is fixed, a handle is held by hands to enable a rotary disc to rotate clockwise, a threaded rod is driven to rotate clockwise, the height of the threaded rod is reduced relative to a threaded sleeve, a sealing plate is pushed to move downwards until the side face of the sealing plate is matched with the inner wall of the clamping groove, the bottom face of a pressing plate is only attached to the inner bottom wall of a groove, the top seat is pressed tightly, the corrugated pipe is fixed and the cover body is sealed, the test is started after air in the corrugated pipe is completely emptied, a force sensor and a digital display screen are opened before the test is formally started, the force sensor is reset, then the pressure pump gradually increases the pressure, meanwhile, as the pressure is transmitted to the force sensor, a series of pressure data such as F1, F2, F3 … … and the like are displayed on a digital display screen connected with the force sensor, two groups of data are recorded in a one-to-one correspondence mode, the symbol of the effective area is A, and the unit is cm 2; the input of the precision pressure gauge is pressure resistance, the symbol is G, and the unit is kgf/cm 2; the digital display outputs a pressure symbol of F in kgf. The effective area can be obtained according to the formula: a is G/F; if the effective area of a certain point of pressure is known, Ax is Gx/Fx, (x represents a certain point of pressure resistance);
the invention has the following beneficial effects:
1. the sealing mechanism can rotate the threaded rod to lower the position of the sealing plate until the side face of the sealing plate is matched and sealed with the inner wall of the clamping groove, the bottom face of the pressing plate is tightly attached to the inner bottom wall of the groove, the pressing plate is used for pressing the corrugated pipe above the top seat, and meanwhile, the sliding sleeve, the mounting rod, the mounting block and other structures are arranged to ensure that the whole sealing plate moves in the vertical direction, so that nuts are prevented from being manually screwed at two sides, the phenomenon that one side is higher and the other side is lower when the sealing plate is matched with the clamping groove is prevented, the sealing performance of a cover body when the sealing plate is matched and sealed with the clamping groove is ensured, and the accuracy;
2. the effective area of the corrugated pipe can be quickly and accurately measured by the aid of the structures such as the arranged force sensor, the digital display screen and the precise pressure gauge, and is an equivalent area, and pressure acts on the area to generate equal axial force;
3. the limiting sleeve and the precision pressure gauge can be supported by the supporting rod, the connection between the cover body and the first pipe passing seat and the connection between the cover body and the second pipe passing seat can be enhanced by the mounting frame, the connection between the sliding rod and the mounting frame can be enhanced by the reinforcing rib, so that the stability of the device in operation is improved, the sliding sleeve, the mounting rod, the mounting block and other structures can ensure that the sealing plate moves in the vertical direction, the two sides of the sealing plate can be simultaneously matched and sealed with the clamping groove, the cover body is in a sealing state in the measuring process, and the accuracy of the effective area measuring result of the corrugated pipe is improved;
4. can make the closing plate carry out elasticity through the spring that sets up and the telescopic link and press to the footstock, when utilizing the closing plate to seal the cover body, before closing plate and draw-in groove cooperation are sealed, the clamp plate bottom surface just can be with the contact of recess inner bottom wall, and along with the closing plate highly constantly descends, the reverse action effect that the spring shrink produced is used in on the clamp plate, make the clamp plate closely hug closely with recess inner bottom wall all the time and, the sealing performance of equipment and the stability of bellows when the test have been guaranteed, in addition, along with the continuous wearing and tearing of clamp plate in the use, when clamp plate thickness reduces, the mode that utilizes elasticity to press still can make clamp plate and recess inner bottom wall paste with, thereby the life of extension clamp plate, just change the clamp plate when wearing and tearing appear in.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (7)
1. The device for measuring the effective area of the outer cavity of the corrugated pipe comprises a working platform (1) and is characterized in that a first pipe passing seat (2) and a second pipe passing seat (3) are fixedly installed at the top of the working platform (1), a digital display screen (4) is arranged on the front face of the first pipe passing seat (2), pipe grooves (5) are formed in the side faces of the first pipe passing seat (2) and the second pipe passing seat (3), a pressure pump (6) is fixedly installed at the top of the working platform (1), a connecting pipe (7) is fixedly communicated with the output end of the pressure pump (6), an installation pipe (8) is fixedly communicated with one end, far away from the pressure pump (6), of the connecting pipe (7) through a connector, a limiting sleeve (9) is fixedly installed on the outer surface of the installation pipe (8), a precision pressure gauge (10) is arranged at the top of the limiting sleeve (9), and a force sensor (11) is arranged, a cover body (12) is fixedly arranged between the tops of the first pipe passing seat (2) and the second pipe passing seat (3);
a straight pipe (13) is fixedly communicated with the inner bottom wall of the cover body (12), the bottom of the straight pipe (13) is fixedly communicated with the top of the installation pipe (8), a base (14) is fixedly installed on the inner bottom wall of the cover body (12), connecting blocks (15) are fixedly installed on two sides of the base (14), a corrugated pipe (16) is arranged on the top of the base (14), a top seat (17) is arranged on the top of the corrugated pipe (16), fixed blocks (18) are fixedly installed on two side faces of the top seat (17), an ejector rod (19) is arranged between each fixed block (18) and each connecting block (15), a sealing plate (20) is arranged on the top of the top seat (17), a clamping groove matched with the sealing plate (20) is formed in the inner top wall of the cover body (12), and a sealing mechanism;
the sealing mechanism (21) comprises a threaded rod (22), the bottom of the threaded rod (22) is movably connected with the top of the sealing plate (20) through a bearing, a rotary table (23) is fixedly mounted at the top of the threaded rod (22), a handle is arranged at the top of the rotary table (23), a threaded sleeve (24) is connected to the outer surface of the threaded rod (22) in a threaded manner, fixing frames (25) are fixedly mounted on two side surfaces of the threaded sleeve (24), a sliding rod (26) is fixedly mounted at one end, far away from the threaded sleeve (24), of each fixing frame (25), a fixing seat (27) is fixedly mounted at the bottom of each sliding rod (26), and the side surface of each fixing seat (27) is fixedly;
the output end of the force sensor (11) is electrically connected with the input end of the digital display screen (4), and the probe of the force sensor (11) extends into the cover body (12) and is connected with the bottom of the base (14).
2. The device for measuring the effective area of the external cavity of the corrugated pipe according to claim 1, wherein a reinforcing rib (28) is fixedly arranged between the side surface of the sliding rod (26) and the side surface of the fixed frame (25), a sliding sleeve (29) is movably connected to the outer surface of the sliding rod (26), a mounting rod (30) is fixedly arranged on the side surface of the sliding sleeve (29) close to the threaded rod (22), a mounting block (31) is fixedly arranged on the side surface of the mounting rod (30) far away from the sliding sleeve (29), and the bottom of the mounting block (31) is fixedly connected with the top surface of the sealing plate (20).
3. The device for measuring the effective area of the external cavity of the corrugated pipe according to claim 1, wherein the top surface of the top seat (17) is provided with a groove (32), the bottom of the sealing plate (20) is fixedly provided with three connecting frames (33), a pressing plate (34) is fixedly arranged between the bottoms of the three connecting frames (33), and the bottom surface of the pressing plate (34) is in contact with the inner bottom wall of the groove (32).
4. The device for measuring the effective area of the external cavity of the corrugated pipe as claimed in claim 1, wherein a support rod (35) is fixedly arranged between the bottom of the limiting sleeve (9) and the top surface of the working platform (1), and a mounting frame (36) is fixedly arranged between the top surfaces of the first through pipe seat (2) and the second through pipe seat (3) and the side surface of the cover body (12).
5. The device for measuring the effective area of the external cavity of the corrugated pipe as claimed in claim 1, wherein the side surface of the sealing plate (20) is provided with a wedge-shaped opening, the side surface of the sealing plate (20) is matched with the inner wall of the clamping groove through the wedge-shaped opening, and an O-shaped sealing ring is arranged between the side surface of the sealing plate (20) and the inner wall of the clamping groove.
6. The device for measuring the effective area of the external cavity of the corrugated pipe as claimed in claim 1, wherein the ejector rod (19) is wave-shaped, and the upper end and the lower end of the ejector rod (19) are fixedly connected with the fixed block (18) and the connecting block (15) through bolts respectively.
7. The device for measuring the effective area of the external cavity of the corrugated pipe as claimed in claim 1, wherein one end of the mounting pipe (8) far away from the pressure pump (6) extends into the straight pipe (13), and a rubber sealing ring is arranged at the joint of the mounting pipe (8) and the straight pipe (13).
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| CN202010878835.2A CN111964893B (en) | 2020-08-27 | 2020-08-27 | Bellows exocoel effective area measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114485494A (en) * | 2022-01-25 | 2022-05-13 | 贵州航谷动力科技有限公司 | Circulating gas turbine director water flow detecting system |
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| CN114485494B (en) * | 2022-01-25 | 2024-05-31 | 贵州航谷动力科技有限公司 | Water flow detection system for turbine guide of circulating type gas turbine |
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Denomination of invention: A device for measuring the effective area of the outer cavity of corrugated pipes Effective date of registration: 20231225 Granted publication date: 20220419 Pledgee: Huishang Bank Co.,Ltd. Lu'an Sanshipu sub branch Pledgor: LU'AN 168 AEROSPACE PRECISION COMPONENT Co.,Ltd. Registration number: Y2023980074173 |
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