CN115014163A - Bulge deformation size measuring instrument for pressure-bearing special equipment - Google Patents
Bulge deformation size measuring instrument for pressure-bearing special equipment Download PDFInfo
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- CN115014163A CN115014163A CN202210769605.1A CN202210769605A CN115014163A CN 115014163 A CN115014163 A CN 115014163A CN 202210769605 A CN202210769605 A CN 202210769605A CN 115014163 A CN115014163 A CN 115014163A
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- special equipment
- pressure
- measuring instrument
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- 238000004804 winding Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000003550 marker Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000001915 proofreading effect Effects 0.000 description 2
- 235000013290 Sagittaria latifolia Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000015246 common arrowhead Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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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
-
- 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
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
-
- 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
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a bulge deformation dimension measuring instrument for pressure-bearing special equipment, which comprises a chuck body, wherein a hand lever is arranged at the top of the chuck body, two groups of supporting legs are arranged on the inner side of the chuck body, and positioning assemblies are arranged at the bottoms of the supporting legs. This pressure-bearing type special equipment swell warp size measuring apparatu, realize many places angular surveying of measuring apparatu to swell department, realize one step of location, the function of the common reading of multiunit data, be convenient for carry out direct mark with two points of swell department horizontal width the biggest, avoid the awkwardness that data lost or forgotten, make things convenient for the measurement personnel to carry out the secondary reading, and the data is proofreaded, cooperate pencil and pen container aggregate erection through screw and interior reel, can conveniently change the pencil, improve the practicality and the convenience of measuring apparatu, moreover, the steam generator is simple in structure, the operation is easy, and convenient folding accomodating, do not occupy great space.
Description
Technical Field
The invention relates to the technical field of equipment bulge deformation size measurement, in particular to a bulge deformation size measuring instrument for pressure-bearing special equipment.
Background
The special equipment relates to boilers, pressure containers, gas-containing cylinders, pressure pipelines, elevators, hoisting machinery, passenger transport ropeways, large-scale amusement facilities, special motor vehicles in fields and the like with high life safety and dangerousness, and a bulge phenomenon can occur in the use process, but the existing measurement mode can only roughly estimate and measure the size of the bulge position by means of a measuring tape and cannot accurately measure the size.
The size measuring apparatu is warp to current pressure-bearing class special equipment swell, can't obtain multiunit data jointly through one step of location, the awkwardness that can't avoid data loss or forget, the measurement personnel of being not convenient for carry out secondary reading and data proofreading, and the structure is complicated, and operation process is loaded down with trivial details, does not have the measurement vestige, can't fold and accomodate.
Disclosure of Invention
In order to solve the technical problem, the invention provides a bulge deformation dimension measuring instrument for pressure-bearing special equipment, which comprises a clamping head body, wherein a hand lever is arranged at the top of the clamping head body, two groups of supporting legs are arranged at the inner side of the clamping head body, a positioning assembly is arranged at the bottom of the supporting legs, a telescopic assembly is arranged at the inner side of the clamping head body and positioned at the bottom of the hand lever, two groups of transverse scales are arranged at the inner side of the clamping head body and positioned at the front side of the supporting legs, an elastic rope is connected between the transverse scales and the positioning assembly, the top end of the elastic rope penetrates through the transverse scales to be connected with a counterweight ball, a plug cap is arranged at the far end of the transverse scales, two groups of screw rods are symmetrically arranged on the clamping head body, an angle scale is fixedly connected at the front side of the clamping head body, the angle scale is used for measuring the maximum camber angle of a bulge part, a pair-mark arrow is arranged on the front side surface of the supporting legs and is used for aligning the surface scales of the positioning assembly and the angle scale, two groups of gaskets are arranged on the top of the supporting leg and two sides of the chuck body;
the positioning assembly comprises a pen container, the pen container and the supporting legs are connected into a whole, screws are arranged on the surface of the pen container in a threaded mode, an inner winding drum is arranged on the inner side of the pen container in a positioning mode through the screws, a pencil is inserted and installed on the inner side of the inner winding drum, and barbs are arranged on the top of the pen container in a threaded mode;
the telescopic assembly comprises an accommodating pipe, the top of the accommodating pipe penetrates through the clamping head body and is in threaded connection with the hand lever, a telescopic ruler is installed on the inner side of the accommodating pipe, and a marking pen used for marking is installed at the bottom of the telescopic ruler.
Preferably, the angle ruler and the chuck body are connected into a whole, the marking pen is arranged on a central axis of the inner side of the chuck body through a containing pipe on the telescopic ruler and a hand lever, the middle part of the transverse ruler is provided with a sliding groove, and the surfaces of the telescopic ruler, the transverse ruler and the angle ruler are provided with scales.
Preferably, the tops of the supporting legs are movably hinged with the chuck body through a screw rod and a gasket.
Preferably, the bottom of the elastic rope is connected with the pen container hook through a barb, the top of the elastic rope is matched with the transverse ruler in a sliding mode through a sliding groove formed in the surface of the transverse ruler and a counterweight ball, and the plug cap is arranged at the far end of the transverse ruler in an embedded mode.
Preferably, the pencil is combined and installed with the pen container through the cooperation of the screw and the inner winding drum, and the bottom of the elastic rope is matched with the pen container through the barb and is arranged on the central axis of the pen container together with the pencil.
Preferably, the arrow at the bottom of the paired arrow points to the tip of the pencil, and the arrow at the top of the paired arrow points to the scale on the angle ruler.
Preferably, the marker pen is arranged on the central axis of the two groups of supporting legs through the matching of the accommodating tube and the hand lever.
Preferably, the transverse rulers are installed on the inner side of the chuck body through a thin screw rod movable hinge, and the two groups of transverse rulers are symmetrically arranged on two sides of the chuck body.
Preferably, the two groups of supporting legs are symmetrically arranged on two sides of the chuck body.
The invention provides a bulge deformation dimension measuring instrument for pressure-bearing special equipment. The method has the following beneficial effects:
1. this pressure-bearing type special equipment swell warp size measuring apparatu reaches the biggest messenger through the contained angle between two sets of landing legs of measuring apparatu, through two sets of landing legs on the surface to mark arrow head, with the accurate of pencil bottom and angle square surface scale to mark, the biggest radian angle on swell surface is read out fast to the accessible angle square, through above-mentioned operation, realizes that the measuring apparatu realizes one step of location to the many places angular surveying of swell department, the function of the common reading of multiunit data.
2. The bulge deformation size measuring instrument for the pressure-bearing special equipment adds scales between two groups of elastic ropes, namely the transverse size of a bulge is obtained, during the measurement of the transverse size of the bulge, when the included angle between two groups of supporting legs is expanded to the maximum angle, the point position between two groups of pencils is the maximum width at the moment, the telescopic ruler is not contracted at the moment, the movement of the measuring instrument on the surface of the bulge is utilized, the telescopic ruler on the marking pen is reversely pushed to contract towards the inner side of the accommodating pipe, the thickness of the bulge protruding out of the equipment shell surface can be measured through the telescopic ruler, the positioning measurement of the trace on the side of the bulge is carried out through the two groups of pencils, two points with the maximum transverse width at the bulge are conveniently and directly marked, the embarrassment that data are lost or forgotten is avoided, and the measuring personnel can conveniently carry out secondary reading and carry out data correction.
3. This pressure-bearing type special equipment bulge warp size measuring apparatu, through screw and interior reel cooperation with pencil and pen container aggregate erection, can conveniently change the pencil, improve the practicality and the convenience of measuring apparatu, and can fold the horizontal ruler, the landing leg is accomodate, and can twine the stretch cord on the horizontal ruler, simple structure, easy operation, and convenient folding accomodating, do not occupy great space, wherein, the gag cap is used for blockking spacing stretch cord of installing in the horizontal ruler inboard, avoid among the measurement process stretch cord to break away from the spout.
4. This pressure-bearing type special equipment swell warp size measuring apparatu through the marker pen of telescopic rule bottom installation, can mark the measuring vestige constantly to carry out the direct-viewing mark to the summit on swell surface, prevent surveying personnel's forgetting and direct reading, and through the shrink of telescopic rule to accomodating intraductal, can measure the swell of different protrusion equipment surface heights.
Drawings
FIG. 1 is a schematic external structural diagram of a bulge deformation dimension measuring instrument for pressure-bearing special equipment according to the present invention;
FIG. 2 is a schematic structural view of the chuck body and the angle ruler according to the present invention;
FIG. 3 is a schematic view of the structure of the hand lever and the storage tube of the present invention;
FIG. 4 is a schematic view of the telescoping assembly of the present invention;
FIG. 5 is a schematic view of the structure of the leg and chuck body of the present invention;
FIG. 6 is a schematic structural view of a positioning assembly of the present invention;
FIG. 7 is a schematic view of the positioning assembly and barb of the present invention;
FIG. 8 is a schematic view of the cross bar and chuck body of the present invention;
fig. 9 is a schematic view of the overall folding and storage structure of the present invention.
In the figure: 1. a chuck body; 2. a handle; 3. a support leg; 4. a positioning assembly; 41. a pen container; 42. a screw; 43. an inner drum; 44. a pencil; 45. a barb; 5. a telescoping assembly; 51. receiving a tube; 52. a telescopic ruler; 53. a marker pen; 6. an elastic cord; 7. a counterweight ball; 8. a transverse ruler; 9. a plug cap; 10. a screw rod; 11. an angle ruler; 12. marking an arrow; 13. and (7) a gasket.
Detailed Description
Example 1
As shown in fig. 1, 3, 4, 5, 6, 7, 8 and 9, the present invention provides a technical solution: a bulge deformation size measuring instrument for bearing special equipment comprises a clamping head body 1, a hand lever 2 is arranged at the top of the clamping head body 1, two groups of supporting legs 3 are arranged on the inner side of the clamping head body 1, a positioning assembly 4 is arranged at the bottom of each supporting leg 3, a telescopic assembly 5 is arranged on the inner side of the clamping head body 1 and at the bottom of the hand lever 2, two groups of cross scales 8 are arranged on the inner side of the clamping head body 1 and at the front side of each supporting leg 3, an elastic rope 6 is connected between each cross scale 8 and the corresponding positioning assembly 4, the top end of each elastic rope 6 penetrates through each cross scale 8 to be connected with a counterweight ball 7, a plug cap 9 is arranged at the far end of each cross scale 8, two groups of lead screws 10 are symmetrically arranged on the clamping head body 1, an angle scale 11 is fixedly connected to the front side of the clamping head body 1, the angle scale 11 is used for measuring the maximum camber angle of a bulge part, opposite-sign arrows 12 are arranged on the front side surface of each supporting leg 3 and are used for aligning the surface scales of the positioning assemblies 4 and the angle scale 11, two groups of gaskets 13 are arranged on the top of the supporting leg 3 and two sides of the clamping head body 1; the angle ruler 11 and the chuck body 1 are connected into a whole, the marking pen 53 is arranged on the central axis of the inner side of the chuck body 1 through the accommodating pipe 51 on the telescopic ruler 52 and the hand lever 2, the middle part of the transverse ruler 8 is provided with a chute, and the surfaces of the telescopic ruler 52, the transverse ruler 8 and the angle ruler 11 are provided with scales; the top of the supporting leg 3 is movably hinged with the chuck body 1 through a screw rod 10 and a gasket 13; the bottom of the elastic rope 6 is connected with the pen container 41 in a hooking mode through a barb 45, the top of the elastic rope 6 is matched with the cross ruler 8 in a sliding mode through a sliding groove formed in the surface of the cross ruler 8 and a counterweight ball 7, and the plug cap 9 is arranged at the far end of the cross ruler 8 in an embedded mode; the arrow at the bottom of the opposite marked arrow 12 points to the pen point of the pencil 44, and the arrow at the top of the opposite marked arrow 12 points to the scale on the angle ruler 11; the transverse rulers 8 are arranged on the inner side of the chuck body 1 through thin screw movable hinges, and the two groups of transverse rulers 8 are symmetrically arranged on two sides of the chuck body 1; the two groups of supporting legs 3 are symmetrically arranged at two sides of the clamping head body 1.
When in use, the top of the hand lever 2 is vertically towards the ground, the whole telescopic assembly 5 is vertically opposite to the sky, the two groups of transverse rules 8 are respectively rotated and adjusted by 90 degrees towards the left side and the right side, so that the horizontal straight lines where the two groups of transverse rules 8 are located are perpendicular to the hand lever 2 through the chuck body 1, then the pencils 44 at the bottom of one group of supporting legs 3 are positioned at the side sides of the bulge, the pencils 44 at the bottom of the other group of supporting legs 3 rotationally slide along the side of the bulge until the included angle between the supporting legs 3 and the other group of supporting legs 3 is expanded to the maximum angle, at the moment, the naturally drooping counterweight ball 7 drives the two groups of elastic ropes 6 to be in a naturally drooping state, the point positions located between the two groups of pencils 44 are indicated on the scales on the surface of the transverse rules 8, the scales between the two groups of elastic ropes 6 are added to obtain the transverse size of the bulge, during the measurement of the transverse size of the bulge, when the included angle between the two groups of supporting legs 3 is expanded to the maximum angle, at the moment, the maximum width is obtained, at this time, the telescopic ruler 52 is not contracted any more, the telescopic ruler 52 on the marking pen 53 is reversely pushed to contract towards the inner side of the accommodating pipe 51 by the movement of the measuring instrument on the surface of the bulge, and the thickness of the bulge protruding out of the surface of the equipment shell can be measured by the telescopic ruler 52;
when the contained angle reached the biggest between two sets of landing legs 3 of measuring apparatu, through two sets of landing legs 3 on the surface to mark arrow point 12, with the accurate of pencil 44 bottom and 11 surface scales of bevel protractor to mark, accessible bevel protractor 11 reads out the surperficial biggest camber angle of swell fast, through above-mentioned operation, realizes that the measuring apparatu realizes one step of location, the function of the common reading of multiunit data to the many places angular surveying of swell department.
Example 2
As shown in fig. 1, 6 and 7, the positioning assembly 4 comprises a pen container 41, the pen container 41 and the supporting legs 3 are connected into a whole, screws 42 are installed on the surface of the pen container 41 through threads, an inner winding drum 43 is installed on the inner side of the pen container 41 through the screws 42 in a positioning manner, a pencil 44 is installed on the inner side of the inner winding drum 43 in an inserting manner, and barbs 45 are installed on the top of the pen container 41 through threads; the pencil 44 is assembled with the barrel 41 through the cooperation of the screw 42 and the inner winding drum 43, and the bottom of the elastic cord 6 is arranged on the central axis of the barrel 41 together with the pencil 44 through the cooperation of the barb 45 and the barrel 41.
When the positioning and measuring device is used, the two points with the largest transverse width at the bulge position can be directly marked conveniently by positioning and measuring the trace tracks on the side of the bulge through the two groups of pencils 44, so that the embarrassment that data is lost or forgotten is avoided, and measuring personnel can conveniently perform secondary reading and data proofreading;
through screw 42 and interior reel 43 cooperation with pencil 44 and pen container 41 aggregate erection, can conveniently change pencil 44, improve the practicality and the convenience of measuring apparatu, and can fold and accomodate horizontal ruler 8, landing leg 3, and can twine stretch cord 6 on horizontal ruler 8, simple structure, easy operation, and convenient folding accomodating, do not occupy great space, wherein, the gag 9 is used for blockking spacing stretch cord 6 of installing in horizontal ruler 8 inboard, avoid among the measurement process stretch cord 6 to break away from the spout.
Example 3
As shown in fig. 1, 3, 4 and 9, the telescopic assembly 5 includes a storage tube 51, the top of the storage tube 51 penetrates through the chuck body 1 and is connected with the hand lever 2 by screw thread, a telescopic ruler 52 is installed inside the storage tube 51, and a marking pen 53 for marking is installed at the bottom of the telescopic ruler 52; the marker 53 is disposed on the central axis of the two sets of legs 3 by the fitting of the storage tube 51 and the hand lever 2.
During the use, through the marker pen 53 of telescopic ruler 52 bottom installation, can mark the vestige of measuring constantly to carry out the direct-viewing mark to the summit on swell surface, prevent surveying personnel's forgetting and direct reading, and through telescopic ruler 52 to the inboard shrink of storage tube 51, can measure the swell of different protruding equipment surface height.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are not specifically illustrated or described, but are instead contemplated to be practiced in the art by those skilled in the art.
Claims (9)
1. The utility model provides a pressure-bearing type special equipment swell warp size measuring apparatu, specifically includes chuck body (1), its characterized in that: handle bar (2) are installed at chuck body (1) top, two sets of landing leg (3) are installed to chuck body (1) inboard, locating component (4) are installed to landing leg (3) bottom, telescopic component (5) are installed to the inboard bottom that just is located handle bar (2) of chuck body (1), two sets of horizontal chi (8) are installed to the inboard front side that just is located landing leg (3) of chuck body (1), be connected with stretch cord (6) between horizontal chi (8) and locating component (4), the top of stretch cord (6) is passed horizontal chi (8) and is connected with counterweight ball (7), gag (9) are installed to the distal end of horizontal chi (8), two sets of lead screw (10) are installed to the symmetry on chuck body (1), chuck body (1) front side fixedly connected with angle square (11), angle square (11) are used for measuring the biggest camber angle that the swell position, the front side surface of the supporting leg (3) is provided with a mark aligning arrow (12), the mark aligning arrow (12) is used for aligning surface scales of the positioning assembly (4) and the angle ruler (11), and two groups of gaskets (13) are arranged on two sides of the top of the supporting leg (3) and the clamping head body (1);
the positioning assembly (4) comprises a pen container (41), the pen container (41) and the supporting legs (3) are connected into a whole, screws (42) are installed on the surface of the pen container (41) in a threaded mode, inner drums (43) are installed on the inner side of the pen container (41) in a positioning mode through the screws (42), pencils (44) are installed on the inner side of the inner drums (43) in an inserted mode, and barbs (45) are installed on the top of the pen container (41) in a threaded mode;
the telescopic assembly (5) comprises a containing pipe (51), the top of the containing pipe (51) penetrates through the clamping head body (1) and the hand lever (2) in threaded connection, a telescopic ruler (52) is installed on the inner side of the containing pipe (51), and a marking pen (53) used for marking is installed at the bottom of the telescopic ruler (52).
2. The bulge deformation dimension measuring instrument for pressure-bearing special equipment according to claim 1, characterized in that: the angle ruler (11) is connected with the chuck body (1) into a whole, the marking pen (53) is installed on the axis of the inner side of the chuck body (1) through the accommodating pipe (51) on the telescopic ruler (52) and the hand lever (2), the middle of the transverse ruler (8) is provided with a sliding groove, and the surfaces of the telescopic ruler (52), the transverse ruler (8) and the angle ruler (11) are provided with scales.
3. The bulge deformation dimension measuring instrument for pressure-bearing special equipment according to claim 2, characterized in that: the top of the supporting leg (3) is movably hinged with the clamping head body (1) through a screw rod (10) and a gasket (13).
4. The bulge deformation dimension measuring instrument for pressure-bearing special equipment according to claim 3, characterized in that: the bottom of the elastic rope (6) is connected with the pen container (41) in a hooking mode through a barb (45), the top of the elastic rope (6) is matched with the cross ruler (8) in a sliding mode through a sliding groove formed in the surface of the cross ruler (8) and a counterweight ball (7), and the plug cap (9) is located at the far end of the cross ruler (8) and is installed in an embedded mode.
5. The bulge deformation dimension measuring instrument for pressure-bearing special equipment according to claim 4, characterized in that: the pencil (44) is matched with the pen container (41) through a screw (42) and an inner winding drum (43) to be assembled, and the bottom of the elastic rope (6) is matched with the pen container (41) through a barb (45) to be arranged on the central axis of the pen container (41) together with the pencil (44).
6. The bulge deformation dimension measuring instrument for pressure-bearing special equipment according to claim 5, characterized in that: the arrow at the bottom of the opposite-sign arrow (12) points to the tip of the pencil (44), and the arrow at the top of the opposite-sign arrow (12) points to the scale on the angle ruler (11).
7. The bulge deformation dimension measuring instrument for pressure-bearing special equipment according to claim 6, characterized in that: the marking pen (53) is arranged on the central axis of the two groups of supporting legs (3) through the matching of the accommodating tube (51) and the hand lever (2).
8. The bulge deformation dimension measuring instrument for pressure-bearing special equipment according to claim 7, characterized in that: the transverse ruler (8) is installed on the inner side of the clamping head body (1) through a thin screw rod movable hinge, and the two transverse ruler (8) are symmetrically arranged on two sides of the clamping head body (1).
9. The bulge deformation dimension measuring instrument for pressure-bearing special equipment according to claim 8, characterized in that: the two groups of supporting legs (3) are symmetrically arranged on two sides of the chuck body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210769605.1A CN115014163A (en) | 2022-07-01 | 2022-07-01 | Bulge deformation size measuring instrument for pressure-bearing special equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210769605.1A CN115014163A (en) | 2022-07-01 | 2022-07-01 | Bulge deformation size measuring instrument for pressure-bearing special equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115014163A true CN115014163A (en) | 2022-09-06 |
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ID=83079694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210769605.1A Withdrawn CN115014163A (en) | 2022-07-01 | 2022-07-01 | Bulge deformation size measuring instrument for pressure-bearing special equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115014163A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878735A (en) * | 2023-09-06 | 2023-10-13 | 河南省黄河防爆起重机有限公司 | Crane girder rail deflection elasticity dynamic balance detection device |
-
2022
- 2022-07-01 CN CN202210769605.1A patent/CN115014163A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878735A (en) * | 2023-09-06 | 2023-10-13 | 河南省黄河防爆起重机有限公司 | Crane girder rail deflection elasticity dynamic balance detection device |
| CN116878735B (en) * | 2023-09-06 | 2023-12-12 | 河南省黄河防爆起重机有限公司 | Crane girder rail deflection elasticity dynamic balance detection device |
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Application publication date: 20220906 |