CN117346635A - Outer diameter measuring device and measuring method for cylindrical gas cylinder - Google Patents
Outer diameter measuring device and measuring method for cylindrical gas cylinder Download PDFInfo
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- CN117346635A CN117346635A CN202311659943.0A CN202311659943A CN117346635A CN 117346635 A CN117346635 A CN 117346635A CN 202311659943 A CN202311659943 A CN 202311659943A CN 117346635 A CN117346635 A CN 117346635A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000002457 bidirectional effect Effects 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 210000002421 cell wall Anatomy 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 97
- 229910001069 Ti alloy Inorganic materials 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/025—Measuring of circumference; Measuring length of ring-shaped articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides an outer diameter measuring device and method for a cylindrical gas cylinder, and relates to the field of detection of cylindrical gas cylinders. The measuring piece comprises an arc-shaped block fixed on the supporting rod, a fan-shaped ring groove is machined on the arc-shaped block, the circle center of the fan-shaped ring groove is the measuring circle center, and the measuring circle center is located at the intersection point of the symmetry line of the two limiting rods and the midpoint connecting line of the two arc-shaped positioning grooves. The sliding rod is connected with the sliding rod in a sliding way, the sliding rod is provided with a rotating wheel through a length adjusting piece, and one side of the rotating wheel is provided with a rotating wheel rotation angle measurer. The problem of to the gas cylinder of stacking side by side, traditional flexible chi measures the gas cylinder external diameter and needs hoist and mount and place alone and measure after steadily giving vent to anger the gas cylinder, has the complicated measurement of measurement process inefficiency and extravagant manpower's technical problem.
Description
Technical Field
The invention belongs to the field of detection of cylindrical gas cylinders, and particularly relates to an outer diameter measuring device and method of a cylindrical gas cylinder.
Background
The titanium alloy gas cylinder can be used for filling air, nitrogen and other compressed gases, and has wide application in hydraulic systems of water surface ships, salvage lifesaving systems, shore-based air systems and the like. With the development of ship equipment in China towards deep sea, higher requirements are put on the volume and the bearing capacity of the gas cylinder, and the large volume, the large caliber and the large bearing capacity are the research and development and manufacturing directions of the gas cylinder.
The traditional titanium alloy gas cylinder adopts a welding method, and the forging and pressing formed seal head and the bottle neck are welded on the cylinder body. Due to the existence of the welding seam, the uniformity of the titanium alloy gas cylinder is inconsistent, more defects exist at the welding seam, the strength of the gas cylinder is greatly reduced, stress concentration is easy to cause in the use process, and accordingly cracks are generated to cause the gas cylinder to fail, and the pressure bearing capacity and the service life of the gas cylinder are greatly reduced. In order to improve the strength and the pressure bearing capacity of the gas cylinder, a hot spinning forming method is adopted to form the seamless pipe; the seamless pipe is punched by forging and then is formed by drawing and rolling, so that the problems of uneven mechanical properties, poor strength and the like caused by welding seams of the traditional steel pipe are effectively avoided.
The current requirement on the volume of a titanium alloy gas cylinder is larger, so that the seamless pipe diameter of the produced gas cylinder is larger, the pipe diameter is generally more than 200mm, the requirement on the dimensional accuracy of the gas cylinder and the seamless pipe is higher, the pipe diameter is required to be measured for multiple times and multiple positions, but the traditional measurement is generally that a flexible rule is firstly used for winding the gas cylinder for one circle, then the length of the flexible rule is measured, and the measurement efficiency is low; and the gas cylinders are usually stacked side by side after being processed, and the traditional measuring tool needs to hoist the gas cylinders and place the gas cylinders separately and measure the gas cylinders stably, so that the measuring efficiency is greatly reduced and the manpower waste is caused.
For this purpose, the invention provides a measuring device and a measuring method for the outer diameter of a cylindrical gas cylinder.
Disclosure of Invention
In order to make up the deficiency of the prior art and solve the technical problems in the background art, the main technical problems are: aiming at the gas cylinders stacked side by side, the outer diameter of the gas cylinder is measured by a traditional flexible ruler after the gas cylinder is lifted and placed stably; in the existing measurement mode, the defects of complex measurement process, low measurement efficiency and manpower waste exist.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an external diameter measuring device of cylindricality gas cylinder, it includes the bracing piece and through synchronous drive structure adjustable install in two gag lever posts that set up relatively on the bracing piece, synchronous drive mechanism drive two the gag lever post is synchronous relatively near or relatively far away from, two all process circular arc constant head tank on the relative lateral wall of gag lever post.
The measuring device is characterized in that a measuring piece is arranged on the supporting rod and comprises an arc-shaped block fixed on the supporting rod, a fan ring groove is machined on the arc-shaped block, the circle center of the fan ring groove is a measuring circle center, and the measuring circle center is located at the intersection point of the symmetry lines of the two limiting rods and the midpoint connecting line of the two arc-shaped positioning grooves.
The fan ring groove is connected with a sliding rod in a sliding mode, the sliding rod is provided with a rotating wheel through a length adjusting piece, and one side of the rotating wheel is provided with a rotating wheel rotating angle measurer.
Further, the synchronous driving structure comprises a chute arranged on the side wall of the supporting rod, a bidirectional threaded rod is arranged in the chute, one ends of the two limiting rods are respectively connected to two sections of threads of the bidirectional threaded rod in a threaded mode in opposite directions, and the other ends of the limiting rods penetrate through the opening ends of the chute and extend outwards. The two-way threaded rod is provided with two sections of threads with opposite rotation directions, so that the two-way threaded rod can be rotated to drive a pair of limiting rods to move relatively or move relatively far away, meanwhile, different thread parameters can be set, the moving speed of the pair of limiting rods can be flexibly set according to different use requirements, the operability is stronger, the mechanism technology of the two-way threaded rod is mature, and the use cost is lower.
Further, the measuring piece further comprises a pushing block, the pushing block is fixed to the top end of the sliding rod, the sliding rod is embedded into the fan ring groove, the bottom surface of the pushing block is higher than the top surface of the fan ring groove, the diameter of the sliding rod is equal to the width of the fan ring groove, and two ends of the fan ring groove are in transition through semi-circular arc surfaces. The diameter of the cylindrical sliding rod is the same as the width of the fan ring groove and is in clearance fit with the fan ring groove, the sliding rod can slide along the fan ring groove and can rotate in the circumferential direction according to the movement of the rotating wheel, so that the rotating wheel can smoothly roll along the circumferential direction of the outer wall surface of the gas cylinder, and the measuring precision of the outer diameter measuring device and the smoothness and convenience of operation are improved.
Further, the circumferences between the starting point and the end point of the sector ring groove are 90 degrees apart, namely the sector ring groove is a quarter sector ring, so that the conversion and calculation processes of the measured data can be simpler.
Further, the groove wall of the starting point and/or the finishing point of the sector groove is provided with a trapezoid groove, the side wall of the sliding rod is provided with a clamping groove, the groove wall of the clamping groove is slidably connected with a trapezoid block, the side wall of the trapezoid block is fixedly connected to the groove bottom of the clamping groove through a third spring, and the trapezoid block is matched with the trapezoid groove. The combination of the trapezoid block and the third spring forms a spring nail, and the spring nail is utilized to slide into the trapezoid groove to limit at the starting point and the end point of the sector ring groove, so that other operations or readings at the starting point and the end point can be conveniently and smoothly carried out.
Further, the length adjusting piece comprises a loop bar, one end of the loop bar is fixed on the arc-shaped block, a square groove is formed in the other end of the loop bar, an inner bar is inserted in the square groove in a sliding mode, one end of the inner bar is fixedly connected to the bottom of the square groove through a first spring, the other end of the inner bar is fixedly connected with the outer wall of the supporting seat, and the rotating wheel is pivotally connected to the supporting seat. The square groove can prevent to lining pole circumference and beat the rotation, and the setting of first spring can let in the pole keep away from the one end of first spring and lose in case to support the pressure and just can let the pole automatic outside remove in, improves the convenience of operation, and the elasticity of first spring can let contact throughout between runner and the gas cylinder outer wall surface fully avoid skidding simultaneously.
Further, the bottom surface lateral wall of loop bar is last sliding connection has the inserted bar, the one end rigid coupling of inserted bar has the arm-tie, the cover has the second spring on the inserted bar, the one end of second spring be fixed in on the arm-tie and the other end be fixed in on the loop bar, the one end lateral wall that is close to the supporting seat of interior pole is equipped with the slot, the other end of inserted bar can insert in the slot. Pulling the pulling plate can make the inserted bar deviate from the slot, loosening the clamping connection of the inner bar, loosening the pulling plate, and automatically clamping the inner bar into the slot under the condition that the slot is positioned right above the inserted bar under the elastic force of the second spring, so that the rotating wheel is positioned at the initial position closest to the fan ring groove.
Further, the rotating wheel rotating angle measurer comprises a dial which is arranged on the top surface of the rotating wheel and uniformly distributed along the circumference, and a counter which is arranged on one side of the rotating wheel through an L-shaped rod and counts the rotating number of the rotating wheel, wherein a digital display screen is further arranged on the L-shaped rod, and the digital display screen is electrically connected with the counter. The rotating wheel rotating angle measurer comprises a whole circle counter and a dial count which is less than the whole circle, the cost and the weight of the outer diameter measuring device can be greatly reduced, and the economy and the operation convenience are improved.
Further, the outer circular wall of the rotating wheel is provided with anti-skidding lines, so that slipping of the rotating wheel when rotating on the gas cylinder is reduced or even avoided.
The application also provides a measuring method of the outer diameter of the cylindrical gas cylinder, which is suitable for controlling the measuring device of the outer diameter of the cylindrical gas cylinder, and specifically comprises the following steps:
s1, reserving a space for inserting a single limiting rod between gas cylinders stacked side by side, and pushing an inner rod inwards to clamp the end part of the inserting rod into a slot;
s2, inserting a pair of limiting rods into two sides of the outer circular wall of the gas cylinder in the radial direction, and enabling the pair of limiting rods to be relatively close to each other through a synchronous driving structure until arc positioning grooves on the pair of limiting rods are clamped on the wall surface of the gas cylinder;
s3, pulling the inserted rod to be separated from the slot, and enabling the inner rod to move outwards under the action of the elastic force of the first spring until the outer cylindrical surface of the rotating wheel abuts against the outer wall surface of the gas cylinder to be tested;
s4, pushing the rotating wheel to roll along the circumference of the wall surface of the gas cylinder, and stopping when the sliding rod synchronously slides from the starting point to the finishing point of the sector ring groove;
s5, reading the length corresponding to the number of whole circles of the rotating wheel displayed on the digital display screen, reading the length corresponding to the number of the rotating wheel which rotates less than one circle on the dial, adding the two lengths to obtain the quarter circumference of the measured gas cylinder, and dividing the circumference by the circumference rate pi to obtain the diameter of the measured gas cylinder.
The beneficial effects of the invention are as follows:
the synchronous driving mechanism drives the pair of limiting rods to synchronously approach the gas cylinders to clamp the gas cylinders along the radial direction for measuring the outer diameter, so that the whole outer diameter is not required to be exposed by independently hoisting the gas cylinders during measurement, and only the space for the insertion of the limiting rods is needed between the side-by-side gas cylinders, thereby avoiding changing the state of stacked gas cylinders when the outer diameter of the gas cylinders is required to be measured, and greatly reducing the measuring difficulty and required manpower and material resources.
The circular arc locating grooves are formed in the pair of limiting rods, when the limiting rods clamp the gas cylinder, the circular arc locating grooves are used for clamping the outer diameter of the gas cylinder, circular arc surfaces in the circumferential direction of the outer diameter of the gas cylinder are embedded into the circular arc locating grooves, after the pair of limiting rods clamp, the circle center of the gas cylinder can be quickly located to the measured circle center, a circular fan groove taking the measured circle center as the circle center is ingeniously arranged to serve as a guide mechanism, the distance of the measuring piece moving along the circumference is consistent with the angle alpha of the phase difference between the starting point and the end point of the circular fan groove through the guide mechanism, the measuring piece rolls along the circumferential direction of the outer cylindrical surface of the gas cylinder through the rotating wheel, the rolling distance of the rotating wheel is read, the circumference corresponding to the circumferential angle alpha of the gas cylinder can be obtained, the diameter of the gas cylinder is calculated, the whole measuring mode is ingenious, the operation is convenient, the calculation difficulty is small, the diameter of the gas cylinder can be quickly obtained by adopting a low-cost rotating angle measurer or a rotating circle number counter, or the diameter of the gas cylinder can be intuitively obtained by simply displaying the data on a digital display screen.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of an outer diameter measuring device of a cylinder;
FIG. 2 is another perspective view of an outer diameter measurement device of a cylinder;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a partial cross-sectional view vertically downward along the inner wall of one side of the loop bar;
FIG. 5 is a schematic view of the trapezoid groove and trapezoid block in the sector groove;
FIG. 6 is a schematic diagram of an outer diameter measurement device for a cylindrical gas cylinder measuring a maximum gas cylinder outer diameter rating;
fig. 7 is a schematic diagram of an outer diameter measuring device for a cylinder of the present invention for measuring an outer diameter of a small diameter cylinder.
In the figure: 1. a support rod; 2. a gas cylinder; 3. a chute; 4. a two-way threaded rod; 5. a limit rod; 6. a connecting block; 7. an arc-shaped block; 8. a fan ring groove; 9. a slide bar; 11. a pushing block; 12. a loop bar; 13. an inner rod; 131. a first spring; 14. a square groove; 15. a support base; 16. a rotating wheel; 18. a dial; 19. an L-shaped rod; 20. a counter; 201. a magnet; 21. a digital display screen; 22. a rod; 221. a second spring; 23. pulling a plate; 24. a slot; 25. a trapezoid groove; 26. a clamping groove; 27. a trapezoid block; 28. and an arc positioning groove.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 7, the outer diameter measuring device of the cylindrical gas cylinder comprises a supporting rod 1, a sliding groove 3 is arranged on the side wall of the supporting rod 1 facing one side of the gas cylinder 2, a bidirectional threaded rod 4 is arranged in the sliding groove 3, the length direction of the bidirectional threaded rod 4 is consistent with the length direction of the sliding groove 3, the bidirectional threaded rod 4 is provided with two screw threads with opposite screw directions, the two screw threads are respectively in threaded connection with a limiting rod 5, one end, far away from the threaded connection, of the limiting rod 5 penetrates through the opening end of the sliding groove 3 and extends outwards, and the extending length is required to be satisfied with the gas cylinder body capable of being clamped on the gas cylinder 2 of various models. A pair of circular arc positioning grooves 28 are processed on the opposite side walls of the limiting rod 5, the circular arc positioning grooves 28 are coincided with the outer circular wall of the largest gas cylinder (the outer diameter of the gas cylinder with the maximum rated value) which can be measured by the outer diameter measuring device, and the circle centers of the two circular arc positioning grooves 28 are coincided with the circle center of the measured largest gas cylinder, and the circle center is called the measuring circle centerOMeasuring centre of circleOAnd is also the center of the sector ring groove 8. Since the sector groove 8 is fixed, the center of the circle is measuredOIs also fixed，It is located at the intersection point of the symmetry line of the two limit rods 5 (the middle line of the relative movement of the two limit rods) and the midpoint of the two circular arc positioning grooves 28 (the circular arc positioning grooves are regarded as a section of circular arc, and the line of the midpoint of the two circular arcs is always on the diameter of the gas cylinder with the maximum rated value).
During operation, the circle center of the gas cylinder 2 to be measured can be rapidly positioned to the measuring circle center when the gas cylinders 2 with different outer diameters are clamped through the circular arc positioning groove 28 on the limiting rod 5OThe position is such that the measured gas cylinder 2 is always concentric with the later sector groove 8, thereby ensuring that the path through which the rotating wheel 16 rotates is equal to one quarter of the circumference of the measured gas cylinder 2.
One end of the bidirectional threaded rod 4 penetrates through the support rod 1 and then is provided with a driving mechanism for driving the bidirectional threaded rod 4 to rotate, and the driving mechanism can be a manual rotating handle or a small motor, so that the operation of the rotating handle is simpler and more convenient, but the manual operation is more laborious; after the output shaft of the small motor is fixedly connected with the end part of the bidirectional threaded rod 4, the bidirectional threaded rod 4 is driven to rotate by controlling the start and stop of the motor, and the bidirectional threaded rod comprises forward rotation or reverse rotation, so that the labor is saved, the cost and the weight of the instrument can be increased, and a user can select the form of the driving mechanism according to the actual use condition.
Be equipped with the measuring part on the bracing piece 1, a pair of gas cylinder 2 has been placed between the adjacent lateral wall of gag lever post 5, and during operation is placed a pair of gag lever post 5 on the outer circular wall of gas cylinder 2 through the user, and the user is through rotating two-way threaded rod 4, and under the spacing effect of spout 3, gag lever post 5 can only remove along the spout, and two gag lever posts 5 are close to or keep away from simultaneously driven to two-way threaded rod 4. When two gag levers 5 are clamped on the body of the gas cylinder 2, the outer diameter of the gas cylinder 2 is measured through the measuring piece.
The measuring piece comprises an arc-shaped block 7, two ends of the arc-shaped block are fixed on the top surface of the supporting rod 1 through connecting blocks 6, the arc-shaped block 7 is provided with a fanning groove 8, after two limiting rods 5 are simultaneously close to the clamping gas cylinder 2 from two sides, the circle center of the gas cylinder 2 is also positioned on the symmetry line, and the circumference distance between two end points of the fanning groove 8 is 90 degrees. The fan ring groove 8 is connected with the sliding rod 9 in a sliding mode, the sliding rod 9 is fixedly connected with the pushing block 11, the side wall of the pushing block 11 is connected with the supporting seat 15 through the adjusting piece, the supporting seat 15 is connected with the rotating wheel 16 in a pivot mode, in order to ensure that the rotating wheel 16 rotates more smoothly, the bottom end of the pivot is fixed on the supporting seat 15, the bearing is fixedly sleeved on the pivot, and the outer ring of the bearing is fixed in a central hole of the rotating wheel 16.
When the measuring part is used for measuring, the cylindrical surface of the rotating wheel 16 is abutted against the outer circular wall of the gas cylinder 2 by adjusting the length of the adjusting part, a user pushes the sliding rod 9 to slide from one end to the other end in the fan ring groove 8, the sliding rod 9 just moves 90 degrees, namely a quarter arc in the circumferential direction, the sliding rod 9 drives the pushing block 11 to move, the rotating wheel 16 rolls along the wall surface of the gas cylinder 2, the rolling distance is one quarter of the outer diameter of the gas cylinder 2, the circumference of the rotating wheel 16 is a fixed value, and the outer diameter of the gas cylinder 2 can be calculated by calculating the number of turns rotated by the rotating wheel 16 and the last rotating angle.
The top surface of the wheel 16 is provided with a dial 18 indicating the length of the outer circumference of the wheel 16. In this embodiment, the number of turns the wheel 16 has rotated and the angle of the last turn can be detected by means of an angular displacement sensor as known in the art. In order to save cost and reduce the weight of the whole tool, in the embodiment, a magnetic induction turn counter with the model SJ18 is adopted to count the number of whole turns n of the rotating wheel 16, a magnet 201 of the counter is arranged at the zero position of the dial 18, a counter 20 is arranged above the magnet, the counter 20 is supported by an L-shaped rod 19, the bottom end of the L-shaped rod 19 is fixed on an adjusting piece at one side, a digital display screen 21 of the counter is also arranged on the L-shaped rod 19, and the digital display screen 21 displays the number of whole turns of the rotating wheel 16nWith the outer circumference of the wheel 16LThe length of the outside diameter of the quarter cylinder 2 is equal to the length of the digital display plus the length read on the dial 18. In the actual use process, the angular displacement of the rotating wheel 16 can be measured directly by using an angular displacement measurer in the prior art, and then the angular displacement is converted into the rotating length of the rotating wheel 16 to be displayed directly on a digital display screen.
The adjusting piece comprises a loop bar 12, one end of the loop bar 12 is fixedly connected with the pushing block 11, a square groove 14 is formed in the other end of the loop bar 12, an inner bar 13 is inserted into the square groove 14 in a sliding mode, one end of the inner bar 13 is fixedly connected to the bottom of the square groove 14 through a first spring 131, and the other end of the inner bar 13 is fixedly connected with the outer wall of the supporting seat 15. The bottom surface lateral wall of loop bar 12 is last sliding connection has inserted bar 22, and the one end rigid coupling of inserted bar 22 has arm-tie 23, and the cover has second spring 221 on the inserted bar 22, and the one end of second spring 221 is fixed in arm-tie 23 and the other end is fixed in on loop bar 12, the one end lateral wall that is close to supporting seat 15 of interior pole 13 is equipped with slot 24, and the other end of inserted bar 22 can insert in slot 24.
When in use, the inner rod 13 is pushed or pulled to one side of the sleeve rod 12, the inner rod 13 further presses the first spring 131 to clamp the end part of the inserted rod 22 into the slot 24, and the total length of the adjusting piece is shortest at the moment; after the pair of limiting rods 5 are clamped on the outer circular wall of the gas cylinder 2 in a centering manner, the inserting rod 22 is pulled to be separated from the inserting groove 24, the inner rod 13 moves outwards under the action of the elastic force of the first spring 131, so that the total length of the adjusting piece is prolonged, the cylindrical surface of the rotating wheel 16 is propped against the outer circular wall of the gas cylinder 2, the first spring 131 is still in a compressed state at the moment, and proper elastic force is provided (the elastic force is determined by the selection of the spring, and is not repeated in the prior art), so that the rotating wheel 16 can synchronously roll on the wall surface of the gas cylinder 2 along with the sliding of the sliding rod 9 in the fan ring groove 8, and the outer diameter of the gas cylinder 2 is measured.
The start point and the end point of the fan ring groove 8 are both provided with trapezoid grooves 25, the corresponding positions of the side wall of the sliding rod 9 are provided with clamping grooves 26, trapezoid blocks 27 are connected in the clamping grooves 26 in a sliding mode, the end portions of the trapezoid blocks 27 are fixedly connected to the bottoms of the clamping grooves 26 through third springs, the trapezoid blocks 27 are matched with the trapezoid grooves 25, during operation, the trapezoid blocks 27 slide in the clamping grooves 26, when the sliding rod 9 slides to the start point or the end point in the fan ring groove 8, the trapezoid blocks 27 on the sliding rod 9 slide into the trapezoid grooves 25 through the action of the springs, the effect of clamping the sliding rod 9 in the fan ring groove 8 is achieved, when the trapezoid blocks 27 are to be separated from the trapezoid grooves 25, the inclined surfaces of the trapezoid blocks 27 are contacted with the inclined surfaces of the trapezoid grooves 25 and extruded, the trapezoid blocks 27 are extruded and retracted into the clamping grooves 26 through the inclined surfaces, the trapezoid blocks 27 are conveniently separated from the trapezoid blocks 25, the sliding rod 9 can be separated from the trapezoid blocks in the clamping grooves 25, and the outside diameter of the fan ring groove 9 can be prevented from being measured, and the outside diameter of the sliding rod 9 can be prevented from being read, and the outside diameter of the fan ring groove 8 is prevented from being measured.
The outer cylindrical surface of the rotating wheel 16 is provided with anti-skidding lines, and when the gas cylinder 2 is in operation, the slipping of the rotating wheel 16 during rotation of the gas cylinder 2 can be reduced or even avoided through the anti-skidding lines.
As shown in fig. 6, a method for measuring an outer diameter of a cylindrical gas cylinder is a method for using the device for measuring an outer diameter of a cylindrical gas cylinder, and the method comprises the following steps:
the space for inserting the single limiting rod 5 is reserved between the gas cylinders stacked side by side, in the practical use process, the limiting rod 5 can be made as thin as possible according to the strength of the material, and the strength of the limiting rod is only required to ensure that the limiting rod 5 is not easy to break in the use process. The inner rod 13 is pushed inwards to clamp the end part of the inserting rod 22 into the slot 24, the rotating wheel 16 is clamped by being nearest to one side of the fan ring groove 8, a pair of limiting rods 5 are inserted into two sides of the outer circular wall of the gas cylinder 2 in the radial direction, the bidirectional threaded rod 4 is rotated to enable the pair of limiting rods 5 to be relatively close, and until the circular arc positioning grooves 28 on the pair of limiting rods 5 are clamped on the wall surface of the gas cylinder 2.
The insert rod 22 is pulled to be separated from the slot 24, so that the inner rod 13 can move outwards under the action of the elastic force of the first spring 131, the outer cylindrical surface of the rotating wheel 16 is propped against the outer wall surface of the gas cylinder 2 to be tested, and the elastic force of the first spring 131 is required to be enough to ensure that the rotating wheel 16 is always contacted with the outer wall surface of the gas cylinder 2 to be tested and can synchronously rotate along with the movement of the sliding rod 9, so that the sliding rod cannot slip on the wall surface of the gas cylinder 2.
Pushing the rotating wheel 16 to move along the circumference of the wall surface of the gas cylinder 2, and stopping when the sliding rod 9 synchronously slides from the starting point position of the sector ring groove 8 (the position of the sliding rod 9 shown in fig. 1 is the starting point position) to the end point position (the other end of the sector ring groove in fig. 1), firstly reading data on the digital display screen 21, then reading data of the dial 18, adding the two data to obtain one quarter of the circumference of the gas cylinder 2, and dividing the circumference by pi to obtain the diameter of the gas cylinder.
It should be noted that, the ratio between the present outer diameter measuring device and the gas cylinder 2 shown in fig. 1 and 2 is not 1:1, and the gas cylinder 2 in the drawings is only a schematic diagram for conveniently showing the use state of the present outer diameter measuring device.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An external diameter measuring device of cylindricality gas cylinder, its characterized in that: the device comprises a supporting rod (1) and two oppositely arranged limiting rods (5) which are adjustably arranged on the supporting rod (1) through a synchronous driving mechanism, wherein the synchronous driving mechanism drives the two limiting rods (5) to synchronously and relatively approach or relatively separate, and arc positioning grooves (28) are formed in the opposite side walls of the two limiting rods (5);
the measuring device is characterized in that a measuring piece is arranged on the supporting rod (1), the measuring piece comprises an arc-shaped block (7) fixed on the supporting rod (1), a fan ring groove (8) is processed on the arc-shaped block (7), the circle center of the fan ring groove (8) is a measuring circle center, and the measuring circle center is positioned at the intersection point of the symmetrical line of the two limiting rods (5) and the midpoint connecting line of the two arc-shaped positioning grooves (28);
the fan ring groove (8) is connected with a sliding rod (9) in a sliding mode, the sliding rod (9) is provided with a rotating wheel (16) through a length adjusting piece, and one side of the rotating wheel (16) is provided with a rotating wheel rotation angle measurer.
2. The outer diameter measuring device for a cylindrical gas cylinder according to claim 1, wherein: the synchronous drive structure comprises a chute (3) arranged on the side wall of the support rod (1), a bidirectional threaded rod (4) is arranged in the chute (3), one ends of two limiting rods (5) are respectively connected to two sections of threads with opposite rotation directions of the bidirectional threaded rod (4) in a threaded mode, and the other ends of the limiting rods (5) penetrate through the opening ends of the chute (3) and extend outwards.
3. The outer diameter measuring device for a cylindrical gas cylinder according to claim 1, wherein: the measuring piece further comprises a pushing block (11), the pushing block (11) is fixed at the top end of the sliding rod (9), the sliding rod (9) is embedded into the fan ring groove (8), the bottom surface of the pushing block (11) is higher than the top surface of the fan ring groove (8), the diameter of the sliding rod (9) is equal to the width of the fan ring groove (8), and two ends of the fan ring groove (8) are in transition through semi-circular arc surfaces.
4. A cylindrical gas cylinder outer diameter measuring device according to claim 3, wherein: the circumference between the starting point and the end point of the fan ring groove (8) is 90 degrees apart.
5. A cylindrical gas cylinder outer diameter measuring device according to claim 3, wherein: the groove wall of fan ring groove (8) is equipped with trapezoidal groove (25), the lateral wall of slide bar (9) is equipped with screens groove (26), the cell wall sliding connection of screens groove (26) has trapezoidal piece (27), the lateral wall of trapezoidal piece (27) is through third spring rigid coupling on the tank bottom of screens groove (26), trapezoidal piece (27) and trapezoidal groove (25) assorted.
6. The outer diameter measuring device for a cylindrical gas cylinder according to claim 1, wherein: the length adjusting piece comprises a loop bar (12), one end of the loop bar (12) is fixed on the arc-shaped block (7), a square groove (14) is formed in the other end of the loop bar (12), an inner bar (13) is inserted in the square groove (14) in a sliding mode, one end of the inner bar (13) is fixedly connected to the groove bottom of the square groove (14) through a first spring (131), the other end of the inner bar (13) is fixedly connected with the outer wall of the supporting seat (15), and the rotating wheel (16) is connected to the supporting seat (15) in a pivot mode.
7. The outer diameter measuring device for a cylindrical gas cylinder according to claim 6, wherein: the utility model discloses a pull rod is characterized in that inserted bar (22) is connected with sliding on the bottom surface lateral wall of loop bar (12), the one end rigid coupling of inserted bar (22) has arm-tie (23), the cover has second spring (221) on inserted bar (22), one end of second spring (221) is fixed in on arm-tie (23) and the other end is fixed in on loop bar (12), the one end lateral wall that is close to supporting seat (15) of interior pole (13) is equipped with slot (24), the other end of inserted bar (22) can insert in slot (24).
8. The outer diameter measuring device for a cylindrical gas cylinder according to claim 7, wherein: the rotating wheel rotating angle measurer comprises a dial (18) which is arranged on the top surface of the rotating wheel (16) and uniformly distributed along the circumference, and a counter (20) which is arranged on one side of the rotating wheel (16) through an L-shaped rod (19) and counts the rotating number of the rotating wheel, wherein a digital display screen (21) is further arranged on the L-shaped rod (19), and the digital display screen (21) is electrically connected with the counter (20).
9. The outer diameter measuring device for a cylindrical gas cylinder according to claim 1, wherein: the outer circular wall of the rotating wheel (16) is provided with anti-skid patterns.
10. A method for measuring the outer diameter of a cylindrical gas cylinder, which is suitable for operating the outer diameter measuring device of the cylindrical gas cylinder according to claim 8, and is characterized by comprising the following steps:
s1, reserving a space for inserting a single limiting rod (5) between the gas cylinders stacked side by side, and pushing the inner rod (13) inwards to clamp the end part of the inserting rod (22) into the slot (24);
s2, inserting a pair of limiting rods (5) into two sides of the outer circular wall of the gas cylinder (2) along the radial direction, and enabling the pair of limiting rods (5) to be relatively close to each other through a synchronous driving structure until arc positioning grooves (28) on the pair of limiting rods (5) are clamped on the wall surface of the gas cylinder (2);
s3, pulling the inserted link (22) to be separated from the slot (24), and enabling the inner link (13) to move outwards under the action of the elastic force of the first spring (131) until the outer cylindrical surface of the rotating wheel (16) abuts against the outer wall surface of the gas cylinder (2) to be tested;
s4, pushing the rotating wheel (16) to roll along the circumference of the wall surface of the gas cylinder (2), and stopping when the sliding rod (9) synchronously slides from the starting point to the end point of the sector ring groove (8);
s5, reading the length corresponding to the number of whole circles of the rotating wheel (16) displayed on the digital display screen (21), reading the length corresponding to less than one circle of the rotating wheel (16) on the dial (18), adding the two lengths to obtain the quarter circumference of the measured gas cylinder (2), and dividing the circumference by the circumference rate pi to obtain the diameter of the measured gas cylinder (2).
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| CN202311659943.0A CN117346635B (en) | 2023-12-06 | 2023-12-06 | Outer diameter measuring device and measuring method for cylindrical gas cylinder |
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