CN117782026B - Suspension bridge cable sag measuring device and measuring method thereof - Google Patents
Suspension bridge cable sag measuring device and measuring method thereof Download PDFInfo
- Publication number
- CN117782026B CN117782026B CN202410201501.XA CN202410201501A CN117782026B CN 117782026 B CN117782026 B CN 117782026B CN 202410201501 A CN202410201501 A CN 202410201501A CN 117782026 B CN117782026 B CN 117782026B
- Authority
- CN
- China
- Prior art keywords
- cable
- positioning block
- cavity
- driving
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 5
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 238000000691 measurement method Methods 0.000 claims abstract description 6
- 230000000670 limiting effect Effects 0.000 claims description 44
- 239000011324 bead Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 15
- 238000009434 installation Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The application relates to a suspension bridge cable sag measurement device and a measurement method thereof, belonging to the technical field of cable sag measurement, and comprising a positioning block, wherein the top side of the positioning block is connected with a cover plate, the bottom side of the positioning block is connected with a prism, the side wall of one side of the positioning block is provided with a through groove in a penetrating way, the through groove penetrates through the side wall of the positioning block facing the cover plate, the cable penetrates through groove, the inner bottom wall of the through groove of the positioning block is provided with a first mounting block, the first mounting block is hinged with a first ball towards the side wall of the cable in a ball manner, the opposite sides of the two inner side walls of the positioning block at the through groove are respectively provided with a second mounting block, the second ball is hinged with the cable in a ball manner, one side of the cover plate facing the cable is provided with a third mounting block, the side wall of the third mounting block facing the cable is hinged with a third ball, and the third ball is in a ball manner of the side wall of the cable in a ball manner of the third mounting block is abutted with the cable.
Description
Technical Field
The application relates to the technical field of cable sag measurement, in particular to a suspension bridge cable sag measurement device and a measurement method thereof.
Background
The cable sag measurement is a key technology for cable installation construction of a suspension bridge, and mainly comprises reference cable strand sag measurement and cable sag measurement in a cable installation process. And in the construction period of the cable, the standard strand and the sag of the cable after cabling are required to be measured for a plurality of times, so that the alignment and construction quality of the cable are ensured.
Because the cable of the suspension bridge is in a suspension state, the total station cannot be directly arranged in the span of the suspension bridge, only an observation mark can be set, a worker determines the lowest point of the cable through measurement, and then the observation mark is fixed on the lowest point of the cable through a clamp.
In the related art, the inventors consider that it takes a long time for a worker to establish the minimum point by measurement, and there is a defect that the measurement efficiency is low.
Disclosure of Invention
In order to improve measurement efficiency, the application provides a suspension bridge cable sag measurement device and a measurement method thereof.
In a first aspect, the present application provides a suspension bridge cable sag measurement device, which adopts the following technical scheme:
the utility model provides a suspension bridge cable sag measuring device, including the locating piece, the top side of locating piece is connected with the apron, the bottom side of locating piece is connected with the prism, the lateral wall of locating piece one side runs through and has seted up logical groove, it runs through the lateral wall of locating piece orientation apron to lead to the groove, the cable runs through the groove, the locating piece is provided with first installation piece in the interior bottom wall department of logical groove department, first installation piece has first ball towards the lateral wall ball joint of cable, first ball and cable butt, two inside walls opposite sides of locating piece department all are provided with the second installation piece, the second ball has the second ball towards the lateral wall ball joint of cable, the apron is provided with the third installation piece towards one side of cable, the lateral wall ball joint of third installation piece orientation cable has the third ball, third ball and cable butt.
Through adopting above-mentioned technical scheme, the staff passes on the cable with the cable, again with cover plate and locating piece between fixed to the locating piece hangs on the cable, and first ball, second ball and third ball all support with the cable at this moment, and the locating piece slides to the nadir of cable along the cable through self gravity from this, makes things convenient for the staff to position the nadir of cable, saves and measures required time, thereby has realized the effect that improves measurement of efficiency.
Optionally, a first cavity is formed in the positioning block, a first through hole is formed in the inner bottom wall of the through groove of the positioning block, the first through hole is communicated with the first cavity, a first screw rod is connected in a sliding manner in the first through hole, one end of the first screw rod, which is far away from the first cavity, is fixedly connected with the first installation block, a first thread bush is arranged in the first cavity, the first thread bush is in threaded connection with the first screw rod, the first thread bush is in rotary connection with the positioning block, a second through hole is formed in the inner side wall of the through groove of the positioning block, the second through hole is communicated with the first cavity, a second screw rod is connected in a sliding manner in the second through hole, one end of the second screw rod, which is far away from the first cavity, is fixedly connected with the second installation block, a second thread bush is connected with the second screw rod in a threaded manner, a linkage assembly for driving the two second thread bushes is arranged in the first cavity, and a first driving device for driving the first thread bush and the linkage assembly is arranged in the first cavity; the cover plate is internally provided with a second cavity, the cover plate is penetrated and provided with a third through hole towards the side wall of the positioning block, the third through hole is communicated with the second cavity, a third screw rod is slidably connected in the third through hole, one end of the third screw rod, which is far away from the second cavity, is fixedly connected with a third installation block, a third thread bush is arranged in the third cavity, the third thread bush is in threaded connection with the third screw rod, and the third thread bush is rotationally connected with the positioning block, and a second driving device for driving the third thread bush is arranged in the second cavity.
By adopting the technical scheme, the first screw sleeve rotates to enable the first screw rod to move, so that the first screw rod enables the first ball to move through the first mounting block; the second screw sleeve rotates to enable the second screw rod to move, so that the second screw rod enables the second ball to move through the second mounting block; rotation of the third threaded sleeve moves the third lead screw such that the third lead screw moves the third ball through the third mounting block. Through above structure, adjust the position of first ball, second ball and third ball to make first ball, second ball and third ball can keep the butt with different diameter cables, realized improving the effect of measuring device suitability.
Optionally, the first drive arrangement includes first driving motor and a first actuating cylinder, and a first actuating cylinder sets up in first cavity, and a first actuating cylinder cover is established on first lead screw, and a first actuating cylinder's one end and a first thread bush fixed connection, a first linkage board has been set firmly to a first actuating cylinder's one end of keeping away from a thread bush, and a first driving motor installs in a first linkage board one side of deviating from a first actuating cylinder, and a first driving motor's output shaft and a first linkage board fixed connection.
Through adopting above-mentioned technical scheme, first driving motor starts and makes first actuating cylinder rotate through first linkage board, and first actuating cylinder makes first thread bush rotate to realized first drive arrangement and driven first thread bush pivoted effect.
Optionally, the linkage subassembly includes linkage roller, driving sprocket, driven sprocket, linkage chain, first bevel gear and second bevel gear, the linkage roller is provided with two, two linkage rollers all set up in first cavity, two linkage rollers set up respectively in the both sides of first screw, and rotate between two linkage rollers all and the locating piece and be connected, driving sprocket sets firmly on the circumference lateral wall of first screw sleeve, driven sprocket is the same and the one-to-one with the quantity of linkage roller, driven sprocket sets firmly on the circumference lateral wall of linkage roller, linkage chain bypasses driving sprocket and driven sprocket, the quantity of first bevel gear is the same and the one-to-one with the quantity of linkage roller, first bevel gear is close to the one end fixed connection of second screw sleeve with the linkage roller, the second bevel gear is fixed on the circumference lateral wall of second screw sleeve, and first bevel gear and second bevel gear meshing are connected.
Through adopting above-mentioned technical scheme, first actuating cylinder rotates and makes the driving sprocket rotate, and driving sprocket makes driven sprocket rotate through the linkage chain, and driven sprocket makes the linkage roller rotate, and the linkage roller makes the second thread bush rotate through first bevel gear and second bevel gear to the linkage subassembly has realized and has driven second thread bush pivoted effect.
Optionally, the second drive arrangement includes second driving motor and second actuating cylinder, and second actuating cylinder sets up in the second cavity, and second actuating cylinder cover is established on the third lead screw, and second actuating cylinder's one end and second thread bush fixed connection, second actuating cylinder keep away from the one end of third thread bush and set firmly the second linkage board, and second driving motor installs in second linkage board one side that deviates from second actuating cylinder, and second driving motor's output shaft and second linkage board fixed connection.
Through adopting above-mentioned technical scheme, second driving motor starts and makes second actuating cylinder rotate through the second linkage board, and second actuating cylinder makes the third thread bush rotate to realized second drive arrangement and driven third thread bush pivoted effect.
Optionally, a first limiting block is fixedly arranged on the inner wall of the first through hole of the positioning block, and a first limiting groove which is in sliding fit with the first limiting block is formed in the side wall of the first screw rod; the inner wall of the positioning block at the second through hole is fixedly provided with a second limiting block, and the side wall of the second screw rod is provided with a second limiting groove which is in sliding fit with the second limiting block; the inner wall of the cover plate at the third through hole is fixedly provided with a third limiting block, and the side wall of the third screw rod is provided with a third limiting groove which is in sliding fit with the third limiting block.
Through adopting above-mentioned technical scheme, first stopper makes first lead screw be difficult for rotating along with first thread bush, and the second stopper makes the second lead screw be difficult for rotating along with the second thread bush, and the third stopper makes the third lead screw be difficult for rotating along with the third thread bush to realized first lead screw, the spacing effect of second lead screw and third lead screw.
Optionally, the apron has run through towards the lateral wall of locating piece and has been seted up and has dodged the groove, dodges the groove and set up in one side of apron, and dodges the groove and run through the lateral wall of apron one side, dodges the inslot and be provided with the fixing base, fixing base and locating piece fixed connection, fixing base internal rotation is connected with the pivot, the apron is all run through at the both ends of pivot, pivot and apron fixed connection, drive pivot pivoted rotating electrical machines is installed to one side of apron.
Through adopting above-mentioned technical scheme, rotate the motor start and make the apron rotate through the pivot, until the apron covers logical groove, keep the relative static between apron and the locating piece through the auto-lock of rotating the motor output shaft this moment to realized the fixed effect mutually between apron and the locating piece.
Optionally, the side wall of the positioning block, which is away from the cover plate, is hinged with a universal bead, a connecting rod is arranged between the prism and the universal bead along the vertical direction, and a balancing weight is fixedly connected on the connecting rod; a supporting plate is arranged between the prism and the universal beads, the supporting plate is mutually perpendicular to the connecting rod, the end part of the supporting plate is fixedly connected with a scale, and the scale is mutually perpendicular to the supporting plate.
By adopting the technical scheme, the universal beads improve the flexibility between the prism and the positioning block, and the connecting rod always keeps plumb under the action of the gravity of the balancing weight, so that the effect of less measurement errors is realized; the staff reads out the distance between the prism and the cable through the staff gauge, so that the effect of facilitating the measurement of the staff is achieved.
Optionally, a base is arranged between the positioning block and the suspension bridge, a fourth through hole is formed in the base towards the side wall of the positioning block, a fourth screw rod is connected in the fourth through hole in a sliding manner, a fourth thread bush is connected to the fourth screw rod in a threaded manner, the fourth thread bush is connected with the base in a rotating manner, one end, far away from the base, of the fourth screw rod is fixedly connected with a lifting table, a lifting seat is arranged between the lifting table and the positioning block, a storage cavity for storing the positioning block is formed in the side wall, deviating from the lifting table, of the lifting seat, an avoidance hole for installing a prism is formed in the inner bottom wall of the storage cavity in a penetrating manner, and a plurality of supporting rods are fixedly connected between the lifting seat and the lifting table; the inner wall of the base at the fourth through hole is fixedly provided with a fourth limiting block, and the side wall of the fourth screw rod is provided with a fourth limiting groove which is in sliding fit with the fourth limiting block.
By adopting the technical scheme, the worker rotates the fourth threaded sleeve to enable the fourth screw rod to move, and the fourth screw rod adjusts the position of the positioning block through the lifting table and the lifting seat, so that the effect of adjusting the height of the positioning block by the worker is realized; the fourth limiting block enables the fourth screw rod not to easily rotate along with the fourth threaded sleeve, and the limiting effect on the fourth screw rod is achieved.
In a second aspect, the application provides a suspension bridge cable sag measurement method, which adopts the following technical scheme:
a cable sag measurement method of a suspension bridge comprises the following steps:
S1, after a worker moves a base to a proper position, placing a positioning block in a storage cavity, and then rotating a fourth thread bush by the worker, so that a cable is placed inside a first ball and a second ball;
s2, starting a rotating motor by a worker until the through groove is covered by the cover plate, then starting the first driving motor and the second driving motor by the worker at the same time, adjusting the first ball, the second ball and the third ball to be abutted with the cable, and finally removing the base by the worker;
S3, measuring the height h 1 of the prism by a worker through a total station, and reading the distance h 2 between the cable and the prism through a scale;
s4, measuring the height h 3 of the tower top by a worker;
And S5, calculating the cable sag, wherein the cable sag H=h 3-h2-h1.
In summary, the present application includes at least one of the following beneficial technical effects:
1. After the positioning block is hung on the cable, the friction born by the cable can be reduced by the first ball, the second ball and the third ball, and the positioning block slides to the lowest point of the cable under the action of gravity of the device, so that the lowest point of the cable can be quickly found, and the effect of improving the sag measurement of the cable is realized;
2. the worker rotates the fourth threaded sleeve to enable the lifting platform to drive the lifting seat to move in the vertical direction through the fourth lead screw, so that the height of the positioning block is adjusted, and the cover plate is driven to rotate through the cooperation of the rotating motor, so that the effect of enabling the worker to conveniently hang the positioning block on the cable is achieved;
3. The connecting rod is kept plumb state all the time through the action of gravity of balancing weight and universal pearl cooperation, has realized improving measurement accuracy's effect.
Drawings
FIG. 1 is a schematic view of a suspension bridge cable sag measurement device according to an embodiment of the present application;
FIG. 2 is a schematic view showing a movement mode of a positioning block according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of an embodiment of the present application showing a fourth stop block position;
FIG. 4 is a partial cross-sectional view of the structure within the first cavity and the second cavity of an embodiment of the present application;
FIG. 5 is an enlarged schematic view of a portion A of FIG. 4;
FIG. 6 is a partially enlarged schematic illustration of portion B of FIG. 4;
Fig. 7 is an enlarged partial schematic view of the portion C in fig. 4.
Reference numerals illustrate: 1. a cable; 2. a positioning block; 21. a prism; 22. a through groove; 23. a first mounting block; 231. a first ball; 24. a second mounting block; 241. a second ball; 25. a first cavity; 26. a first through hole; 261. a first lead screw; 2611. a first threaded sleeve; 2612. a first limit groove; 262. a first limiting block; 27. a second through hole; 271. a second lead screw; 2711. a second threaded sleeve; 2712. the second limit groove; 272. a second limiting block; 28. a fixing seat; 29. a universal bead; 291. a connecting rod; 2911. balancing weight; 3. a cover plate; 31. a third mounting block; 311. a third ball; 32. a second cavity; 33. a third through hole; 331. a third lead screw; 3311. a third thread bush; 3312. a third limit groove; 332. a third limiting block; 34. an avoidance groove; 35. a rotating shaft; 36. a rotating motor; 37. a balance weight; 4. a linkage assembly; 41. a linkage roller; 42. a drive sprocket; 43. a driven sprocket; 44. a linkage chain; 45. a first bevel gear; 46. a second bevel gear; 5. a first driving device; 51. a first driving motor; 52. a first drive cylinder; 521. a first linkage plate; 6. a second driving device; 61. a second driving motor; 62. a second driving cylinder; 621. a second linkage plate; 7. a support plate; 71. a ruler; 8. a base; 81. a fourth through hole; 82. a fourth lead screw; 821. a fourth thread bush; 8221. a hand wheel; 822. a lifting table; 823. a lifting seat; 8231. a storage chamber; 8232. avoidance holes; 824. a support rod; 825. a fourth limit groove; 83. and a fourth limiting block.
Detailed Description
The application is described in further detail below with reference to fig. 1-7.
The embodiment of the application discloses a suspension bridge cable sag measuring device.
Referring to fig. 1 and 2, a suspension bridge cable sag measurement device includes a cable 1, a base 8 is provided between the cable 1 and the suspension bridge, a fourth lead screw 82 is slidably connected in the base 8, one end of the fourth lead screw 82, which is far away from the base 8, is fixedly connected with a lifting table 822, one side of the lifting table 822, which is far away from the fourth lead screw 82, is provided with a lifting seat 823, the side wall of the lifting seat 823, which is far away from the lifting plate, is provided with a storage cavity 8231, a positioning block 2 is provided in the storage cavity 8231, and the cable 1 passes through the positioning block 2.
The worker lifts the lift table 822 by the fourth screw 82, and the lift table 822 lifts the positioning block 2 by the lift base 823, thereby hanging the positioning block 2 on the cable 1, and then removes the base 8, whereby the positioning block 2 slides to the lowest point of the cable 1 due to its own weight.
Referring to fig. 2 and 3, a fourth through hole 81 is formed in the base 8 facing the side wall of the positioning block 2, the fourth through hole 81 is formed in the vertical direction, a fourth screw rod 82 is slidably connected to the fourth through hole 81, a fourth threaded sleeve 821 is sleeved on the fourth screw rod 82, the fourth threaded sleeve 821 is in threaded connection with the fourth screw rod 82, the fourth threaded sleeve 821 is in rotational connection with the base 8, a hand wheel 8221 is sleeved on the fourth threaded sleeve 821, and the hand wheel 8221 is fixedly connected with the fourth threaded sleeve 821.
Referring to fig. 2, a plurality of support rods 824 are arranged between the lifting seat 823 and the lifting table 822 along the vertical direction, two ends of the support rods 824 are fixedly connected with the lifting seat 823 and the lifting table 822, and the plurality of support rods 824 enclose a circle.
Referring to fig. 3, a fourth limiting block 83 is fixedly arranged on the inner wall of the fourth through hole 81 of the base 8, and a fourth limiting groove 825 slidably matched with the fourth limiting block 83 is formed in the side wall of the fourth screw 82.
The operator rotates the hand wheel 8221 to drive the fourth threaded sleeve 821 to rotate, the fourth threaded sleeve 821 rotates to drive the fourth lead screw 82 to slide upwards along the fourth through hole 81, the fourth lead screw 82 drives the lifting platform 822 to move upwards, the lifting platform 822 drives the lifting seat 823 to move upwards through the supporting rod 824, and the lifting seat 823 drives the positioning block 2 to move upwards. During the movement of the fourth screw 82, the fourth screw 82 slides the fourth stopper 83 along the fourth stopper groove 825.
Referring to fig. 4, the lifting seat 823 is provided with a avoidance hole 8232 in a penetrating manner in the inner bottom wall of the storage cavity 823, a connecting rod 291 is arranged in the avoidance hole 8232 in the vertical direction, two ends of the connecting rod 291 are all provided with the avoidance hole 823 in a penetrating manner, the diameter of the connecting rod 291 is smaller than that of the avoidance hole 823, the top end of the connecting rod 291 is fixedly connected with a universal bead 29, the universal bead 29 is in spherical hinge with the bottom wall of the lifting seat 823, and the bottom end of the connecting rod 291 is fixedly connected with a prism 21.
Referring to fig. 2 and 4, one end of the connecting rod 291 near the prism 21 is fixedly connected with a balancing weight 2911, a supporting plate 7 is arranged between the balancing weight 2911 and the prism 21 along the horizontal direction, the supporting plate 7 is fixedly connected with the connecting rod 291, the supporting plate 7 is mutually perpendicular to the connecting rod 291, two ends of the supporting plate 7 are fixedly connected with two scales 71, the two scales 71 are respectively arranged on two sides of the supporting plate 7 along the vertical direction, the scales 71 are mutually perpendicular to the supporting plate 7, and the reading starting point of the scales 71 and the center of the prism 21 are positioned on the same horizontal plane.
Due to the gravity of the counterweight 2911, the connecting rod 291 is kept in a plumb state, at this time, the worker measures and calculates the height of the prism 21 by the total station, and then the worker reads the distance between the center of the prism 21 and the center of the cable 1 by the scale 71.
Referring to fig. 4 and 5, a through groove 22 is formed in a side wall of one side of the positioning block 2, the through groove 22 penetrates through a side wall of the positioning block 2 facing the cover plate 3, the cable 1 penetrates through the through groove 22, a first mounting block 23 is arranged on one side of the cable 1 facing away from the cover plate 3 in the horizontal direction, a first ball 231 is hinged to the side wall of the first mounting block 23 facing the cable 1 in a ball manner, and the first ball 231 is abutted to the cable 1.
Referring to fig. 4 and 5, a first cavity 25 is formed in the positioning block 2, the first cavity 25 is concave, a first through hole 26 is formed in the inner bottom wall of the through groove 22 of the positioning block 2, the first through hole 26 is formed in the vertical direction, the first through hole 26 is communicated with the first cavity 25, a first lead screw 261 is slidably connected in the first through hole 26, a first threaded sleeve 2611 is arranged in the first cavity 25, the first threaded sleeve 2611 is sleeved on the first lead screw 261, the first threaded sleeve 2611 is in threaded connection with the first lead screw 261, the first threaded sleeve 2611 is in rotary connection with the positioning block 2, and one end, far away from the first cavity 25, of the first lead screw 261 is fixedly connected with the first mounting block 23.
Referring to fig. 5, a first limiting block 262 is fixedly arranged on the inner wall of the positioning block 2 at the first through hole 26, and a first limiting groove 2612 which is in sliding fit with the first limiting block 262 is formed in the side wall of the first screw 261.
Referring to fig. 4 and 5, a first driving device 5 is disposed in the first cavity 25, the first driving device 5 includes a first driving motor 51 and a first driving barrel 52, the first driving barrel 52 is disposed in the first cavity 25, the first driving barrel 52 is sleeved on a first screw 261, one end of the first driving barrel 52 is fixedly connected with a first threaded sleeve 2611, one end of the first driving barrel 52 far away from the first threaded sleeve 2611 is fixedly provided with a first linkage plate 521, the first driving motor 51 is mounted on one side of the first linkage plate 521 far away from the first driving barrel 52, the first driving motor 51 is fixedly connected with an inner bottom wall of the positioning block 2 at the first cavity 25, and an output shaft of the first driving motor 51 is fixedly connected with the first linkage plate 521.
After the cable 1 is moved into the through groove 22 by the moving positioning block 2, a first driving motor 51 is started by a worker, the first driving motor 51 drives a first linkage plate 521 to rotate, the first linkage plate 521 drives a first driving cylinder 52 to rotate, the first driving cylinder 52 drives a first threaded sleeve 2611 to rotate, the first threaded sleeve 2611 drives a first lead screw 261 to move, the first lead screw 261 drives a first mounting block 23 to move, and the first mounting block 23 drives a first ball 231 to abut against the cable 1. During the movement of the first screw 261, the first screw 261 makes the first stopper 262 slide along the first stopper groove 2612.
Referring to fig. 4 and 6, the second mounting blocks 24 are disposed on both sides of the cable 1 in the vertical direction, the second balls 241 are ball-hinged to opposite side walls of the two second mounting blocks 24, the two second balls 241 are aligned, and the second balls 241 are abutted to the cable 1.
Referring to fig. 4 and 6, the inner sidewall of the positioning block 2 at the through groove 22 is provided with a second through hole 27 in a penetrating manner along the horizontal direction, the two through holes are aligned, the second through hole 27 is communicated with the first cavity 25, a second lead screw 271 is slidably connected in the second through hole 27, a second thread bush 2711 is arranged in the first cavity 25, the second thread bush 2711 is sleeved on the second lead screw 271, the second thread bush 2711 is in threaded connection with the second lead screw 271, the second thread bush 2711 is in rotary connection with the positioning block 2, and one end of the second lead screw 271 far away from the first cavity 25 is fixedly connected with the second mounting block 24.
Referring to fig. 6, a second limiting block 272 is fixedly arranged on the inner wall of the second through hole 27 of the positioning block 2, and a second limiting groove 2712 which is slidably matched with the second limiting block 272 is formed in the side wall of the second lead screw 271.
Referring to fig. 4, a linkage assembly 4 is disposed in the first cavity 25, the linkage assembly 4 includes a linkage roller 41, a driving sprocket 42, a driven sprocket 43, a linkage chain 44, a first bevel gear 45 and a second bevel gear 46, the linkage roller 41 is disposed two, the two linkage rollers 41 are disposed in the first cavity 25, the two linkage rollers 41 are disposed at two sides of the first screw 261 along a vertical direction respectively, bottom ends of the two linkage rollers 41 are rotationally connected with an inner bottom wall of the positioning block 2 at the first cavity 25, the driving sprocket 42 is fixedly disposed on a circumferential side wall of the first screw sleeve 2611, the driven sprocket 43 is in the same number and in one-to-one correspondence with the linkage rollers 41, the driven sprocket 43 is fixedly disposed on a circumferential side wall of the linkage roller 41, the linkage chain 44 bypasses the driving sprocket 42 and the driven sprocket 43, the first bevel gear 45 is in the same number and in one-to-one correspondence with the linkage rollers 41, the first bevel gear 45 is fixedly connected with one end of the first bevel gear 45 close to the second screw sleeve 2711, the second bevel gear 46 is fixedly disposed on a circumferential side wall of the second screw sleeve 2711, and the first bevel gear 45 is meshed with the second bevel gear 46.
The first driving cylinder 52 rotates to drive the driving sprocket 42 to rotate, the driving sprocket 42 drives the driven sprocket 43 to rotate through the linkage chain 44, the driven sprocket 43 drives the linkage roller 41 to rotate, the linkage roller 41 drives the first bevel gear 45 to rotate, the first bevel gear 45 drives the second bevel gear 46 to rotate, the second bevel gear 46 drives the second thread bush 2711 to rotate, the second thread bush 2711 drives the second lead screw 271 to move, the second lead screw 271 drives the second mounting block 24 to move, and the second mounting block 24 drives the second ball 241 to abut against the cable 1. During the movement of the second lead screw 271, the second lead screw 271 makes the second limiting block 272 slide along the second limiting groove 2712.
Referring to fig. 2 and 4, one side of the positioning block 2, which is far away from the lifting seat 823, is provided with a cover plate 3, the cover plate 3 covers the through groove 22, the side wall of the cover plate 3, which faces the positioning block 2, is provided with two avoidance grooves 34 in a penetrating manner, the two avoidance grooves 34 are provided on one side of the cover plate 3, the avoidance grooves 34 penetrate through the side wall of one side of the cover plate 3, a fixed seat 28 is arranged in the avoidance grooves 34, the fixed seat 28 is fixedly connected with the positioning block 2, a rotating shaft 35 is fixedly connected with the cover plate 3, the rotating shaft 35 is arranged on one side of the cover plate 3, which is close to the fixed seat 28, the rotating shaft 35 penetrates through the two fixed seats 28, the rotating shaft 35 is connected with the fixed seat 28 in a rotating manner, a rotating motor 36 which drives the rotating shaft 35 to rotate is arranged on one side of the cover plate 3, balance weights 37 are fixedly connected with the balance weights 37, and the three balance weights 37 and the rotating motor 36 are respectively arranged at four corners of the cover plate 3.
After the cable 1 is moved into the through groove 22 by the movable positioning block 2, a worker starts the rotating motor 36, the rotating motor 36 drives the rotating shaft 35 to rotate, and the rotating shaft 35 drives the cover plate 3 to rotate until the cover plate 3 rotates to be in a horizontal state, and at the moment, the cover plate 3 is abutted with the positioning block 2.
Referring to fig. 4, a third mounting block 31 is provided on a side of the cable 1 facing the cover plate 3, and a third ball 311 is ball-hinged to a side wall of the third mounting block 31 facing the cable 1, and the third ball 311 abuts against the cable 1.
Referring to fig. 4 and 7, a second cavity 32 is formed in the cover plate 3, a third through hole 33 is formed in the cover plate 3 towards the side wall of the positioning block 2 in a penetrating manner, the third through hole 33 is aligned with the first through hole 26, the third through hole 33 is communicated with the second cavity 32, a third screw rod 331 is slidably connected in the third through hole 33, a third thread bush 3311 is arranged in the third cavity, the third thread bush 3311 is sleeved on the third screw rod 331, the third thread bush 3311 is in threaded connection with the third screw rod 331, the third thread bush 3311 is in rotary connection with the positioning block 2, and one end, far away from the second cavity 32, of the third screw rod 331 is fixedly connected with the third mounting block 31.
Referring to fig. 7, a third limiting block 332 is fixedly disposed on the inner wall of the cover plate 3 at the third through hole 33, and a third limiting groove 3312 slidably adapted to the third limiting block 332 is formed on the side wall of the third screw 331.
Referring to fig. 4, a second driving device 6 is disposed in the second cavity 32, the second driving device 6 includes a second driving motor 61 and a second driving cylinder 62, the second driving cylinder 62 is disposed in the second cavity 32, the second driving cylinder 62 is sleeved on the third screw rod 331, one end of the second driving cylinder 62 is fixedly connected with the second threaded sleeve 2711, one end of the second driving cylinder 62 far away from the third threaded sleeve 3311 is fixedly provided with a second linkage plate 621, the second driving motor 61 is mounted on one side of the second linkage plate 621 away from the second driving cylinder 62, the second driving motor 61 is fixedly connected with an inner top wall of the positioning block 2 at the second cavity 32, and an output shaft of the second driving motor 61 is fixedly connected with the second linkage plate 621.
After the cover plate 3 rotates to be abutted with the positioning block 2, a worker starts the second driving motor 61, the second driving motor 61 drives the second linkage plate 621 to rotate, the second linkage plate 621 drives the second driving cylinder 62 to rotate, the second driving cylinder 62 drives the third threaded sleeve 3311 to rotate, the third threaded sleeve 3311 drives the third lead screw 331 to move, the third lead screw 331 drives the third mounting block 31 to move, and the third mounting block 31 drives the third ball 311 to be abutted with the cable 1.
The embodiment of the application provides a suspension bridge cable 1 sag measuring device, which is implemented by the following principle: the worker rotates the hand wheel 8221 to enable the fourth screw 82 to lift the positioning block 2 through the lifting table 822 and the lifting seat 823, so that the cable 1 is placed in the through groove 22, then the worker starts the rotating motor 36 to rotate the cover plate 3 to be abutted against the cover plate 3, finally the worker starts the first driving motor 51 and the second driving motor 61 at the same time, and the first ball 231, the second ball 241 and the third ball 311 are adjusted to be abutted against the cable 1. After the first ball 231, the second ball 241 and the third ball 311 are abutted with the cable 1, the worker withdraws the lifting seat 823 and removes the base 8; at this time, the positioning block 2 slides to the lowest point of the cable 1 due to gravity, and the connection rod 291 is in a plumb state. Through the structure, the effect of improving the measurement efficiency is realized.
The embodiment of the application also discloses a method for measuring the sag of the suspension bridge cable.
The method comprises the following steps:
s1, after a worker moves the base 8 to a proper position, placing the positioning block 2 in the accommodating cavity 8231, and then rotating the fourth threaded sleeve 821 by the worker, so that the cable 1 is placed inside the first ball 231 and the second ball 241;
S2, starting the rotating motor 36 by a worker until the through groove 22 is covered by the cover plate 3, then starting the first driving motor 51 and the second driving motor 61 by the worker at the same time, adjusting the first ball 231, the second ball 241 and the third ball 311 to be abutted with the cable 1, and finally removing the base 8 by the worker;
S3, a worker measures the height h 1 of the prism 21 through a total station, and reads the distance h 2 between the cable 1 and the prism 21 through a scale 71;
s4, measuring the height h 3 of the tower top by a worker;
And S5, calculating the sag of the cable 1, wherein the sag H=h 3-h2-h1 of the cable 1.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. The utility model provides a suspension bridge cable sag measuring device which characterized in that: the novel cable comprises a positioning block (2), a cover plate (3) is connected to the top side of the positioning block (2), a prism (21) is connected to the bottom side of the positioning block (2), a through groove (22) is formed in the side wall of one side of the positioning block (2) in a penetrating mode, the through groove (22) penetrates through the side wall of the positioning block (2) facing the cover plate (3), a first mounting block (23) is arranged at the inner bottom wall of the through groove (22) of the positioning block (2), a first ball (231) is hinged to the side wall of the first mounting block (23) facing the cable (1) in a ball mode, the first ball (231) is abutted to the cable (1), second mounting blocks (24) are arranged on the opposite sides of two inner side walls of the positioning block (2) at the through groove (22), second balls (241) are hinged to the side wall of the second mounting blocks (24) facing the cable (1) in a ball mode, the second balls (241) are abutted to the cable (1), a third mounting block (31) is arranged on one side of the cover plate (3) facing the cable (1), and the third balls (311) are hinged to the third balls (311) of the third cable (31); a first cavity (25) is formed in the positioning block (2), a first through hole (26) is formed in the positioning block (2) at the position of the through groove (22) in a penetrating mode, the first through hole (26) is communicated with the first cavity (25), a first lead screw (261) is connected in a sliding mode, one end, far away from the first cavity (25), of the first lead screw (261) is fixedly connected with the first mounting block (23), a first threaded sleeve (2611) is arranged in the first cavity (25), the first threaded sleeve (2611) is in threaded connection with the first lead screw (261), the first threaded sleeve (2611) is in threaded connection with the positioning block (2) in a rotating mode, a second through hole (27) is formed in the inner side wall of the positioning block (2) at the position of the through groove (22) in a penetrating mode, the second through hole (27) is communicated with the first cavity (25), one end, far away from the first cavity (25), of the second lead screw (271) is fixedly connected with the second mounting block (24), the first threaded sleeve (25) is provided with the second threaded sleeve (2711) in a rotating mode, the second threaded sleeve (2711) is connected with the second threaded sleeve (2711) in a rotating mode, a linkage assembly (4) for driving the two second threaded sleeves (2711) is arranged in the first cavity (25), and a first driving device (5) for driving the first threaded sleeves (2611) and the linkage assembly (4) is arranged in the first cavity (25); a second cavity (32) is formed in the cover plate (3), a third through hole (33) is formed in the cover plate (3) towards the side wall of the positioning block (2) in a penetrating mode, the third through hole (33) is communicated with the second cavity (32), a third lead screw (331) is connected in a sliding mode in the third through hole (33), one end, far away from the second cavity (32), of the third lead screw (331) is fixedly connected with a third mounting block (31), a third thread bush (3311) is arranged in the third cavity, the third thread bush (3311) is in threaded connection with the third lead screw (331), the third thread bush (3311) is in rotary connection with the positioning block (2), and a second driving device (6) for driving the third thread bush (3311) is arranged in the second cavity (32); the first driving device (5) comprises a first driving motor (51) and a first driving cylinder (52), the first driving cylinder (52) is arranged in the first cavity (25), the first driving cylinder (52) is sleeved on the first screw rod (261), one end of the first driving cylinder (52) is fixedly connected with the first threaded sleeve (2611), one end of the first driving cylinder (52) far away from the first threaded sleeve (2611) is fixedly provided with a first linkage plate (521), the first driving motor (51) is arranged on one side, deviating from the first driving cylinder (52), of the first linkage plate (521), and an output shaft of the first driving motor (51) is fixedly connected with the first linkage plate (521); the linkage assembly (4) comprises two linkage rollers (41), a driving sprocket (42), a driven sprocket (43), a linkage chain (44), a first bevel gear (45) and a second bevel gear (46), wherein the two linkage rollers (41) are arranged in the first cavity (25), the two linkage rollers (41) are respectively arranged at two sides of a first screw rod (261), the two linkage rollers (41) are rotationally connected with a positioning block (2), the driving sprocket (42) is fixedly arranged on the circumferential side wall of a first threaded sleeve (2611), the driven sprocket (43) is in one-to-one correspondence with the linkage rollers (41), the driven sprocket (43) is fixedly arranged on the circumferential side wall of the linkage rollers (41), the linkage chain (44) bypasses the driving sprocket (42) and the driven sprocket (43), the number of the first bevel gear (45) is the same as that of the first bevel gear (41) and one-to-one correspondence, the first bevel gear (45) is fixedly connected with the second bevel gear (46) close to a second threaded sleeve (1), and the first bevel gear (45) is fixedly connected with the second bevel gear (27146) and the second bevel gear (2711) are fixedly arranged on the circumferential side wall of the second threaded sleeve (46); the side wall ball of the positioning block (2) deviating from the cover plate (3) is hinged with a universal bead (29), a connecting rod (291) is arranged between the prism (21) and the universal bead (29) along the vertical direction, and a balancing weight (2911) is fixedly connected to the connecting rod (291); a supporting plate (7) is arranged between the prism (21) and the universal beads (29), the supporting plate (7) is perpendicular to the connecting rod (291), a scale (71) is fixedly connected to the end portion of the supporting plate (7), and the scale (71) is perpendicular to the supporting plate (7).
2. A suspension bridge cable sag measurement device according to claim 1, wherein: the second driving device (6) comprises a second driving motor (61) and a second driving barrel (62), the second driving barrel (62) is arranged in the second cavity (32), the second driving barrel (62) is sleeved on the third screw rod (331), one end of the second driving barrel (62) is fixedly connected with the second threaded sleeve (2711), one end of the second driving barrel (62) away from the third threaded sleeve (3311) is fixedly provided with a second linkage plate (621), the second driving motor (61) is arranged on one side, deviating from the second driving barrel (62), of the second linkage plate (621), and an output shaft of the second driving motor (61) is fixedly connected with the second linkage plate (621).
3. A suspension bridge cable sag measurement device according to claim 1, wherein: a first limiting block (262) is fixedly arranged on the inner wall of the first through hole (26) of the positioning block (2), and a first limiting groove (2612) which is in sliding fit with the first limiting block (262) is formed in the side wall of the first screw rod (261); a second limiting block (272) is fixedly arranged on the inner wall of the second through hole (27) of the positioning block (2), and a second limiting groove (2712) which is in sliding fit with the second limiting block (272) is formed in the side wall of the second lead screw (271); the cover plate (3) is fixedly provided with a third limiting block (332) on the inner wall of the third through hole (33), and a third limiting groove (3312) which is in sliding fit with the third limiting block (332) is formed in the side wall of the third lead screw (331).
4. A suspension bridge cable sag measurement device according to claim 1, wherein: the utility model discloses a cover plate (3) is provided with dodging groove (34) towards the lateral wall of locating piece (2), dodge one side of groove (34) and offer in cover plate (3), and dodge the lateral wall of groove (34) through cover plate (3) one side, be provided with fixing base (28) in dodging groove (34), fixing base (28) and locating piece (2) fixed connection, fixing base (28) internal rotation is connected with pivot (35), cover plate (3) are all run through at the both ends of pivot (35), pivot (35) and cover plate (3) fixed connection, one side of cover plate (3) is installed and is driven pivot (35) pivoted rotation motor (36).
5. A suspension bridge cable sag measurement device according to claim 1, wherein: a base (8) is arranged between the positioning block (2) and the suspension bridge, a fourth through hole (81) is formed in the base (8) towards the side wall of the positioning block (2), a fourth lead screw (82) is connected in a sliding manner in the fourth through hole (81), a fourth threaded sleeve (821) is connected to the fourth lead screw (82) in a threaded manner, a lifting table (822) is fixedly connected to one end, far away from the base (8), of the fourth lead screw (82), a lifting seat (823) is arranged between the lifting table (822) and the positioning block (2), a containing cavity (823) for containing the positioning block (2) is formed in the side wall, deviating from the lifting table (822), of the lifting seat (823), a avoiding hole (823) for installing a prism (21) is formed in the inner bottom wall of the containing cavity (823) in a penetrating manner, and a plurality of supporting rods (824) are fixedly connected between the lifting seat (822) and the lifting table (822); a fourth limiting block (83) is fixedly arranged on the inner wall of the fourth through hole (81) of the base (8), and a fourth limiting groove (825) which is in sliding fit with the fourth limiting block (83) is formed in the side wall of the fourth screw rod (82).
6. A suspension bridge cable sag measurement method comprising a suspension bridge cable sag measurement device according to any one of claims 1-5, characterized in that: the method comprises the following steps:
S1, after a worker moves a base (8) to a proper position, placing a positioning block (2) in a containing cavity (8231), and then rotating a fourth threaded sleeve (821) by the worker, so that a cable (1) is placed inside a first ball (231) and a second ball (241);
s2, starting a rotating motor (36) by a worker until a through groove (22) is covered by a cover plate (3), then starting a first driving motor (51) and a second driving motor (61) by the worker at the same time, adjusting the first ball (231), the second ball (241) and the third ball (311) to be abutted with the cable (1), and finally removing the base (8) by the worker;
S3, measuring the height h 1 of the prism (21) by a worker through a total station, and reading the distance h 2 between the cable (1) and the prism (21) through a scale (71);
s4, measuring the height h 3 of the tower top by a worker;
S5, calculating the sag of the cable (1), wherein the sag H=h 3-h2-h1 of the cable (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410201501.XA CN117782026B (en) | 2024-02-23 | 2024-02-23 | Suspension bridge cable sag measuring device and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410201501.XA CN117782026B (en) | 2024-02-23 | 2024-02-23 | Suspension bridge cable sag measuring device and measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117782026A CN117782026A (en) | 2024-03-29 |
| CN117782026B true CN117782026B (en) | 2024-04-30 |
Family
ID=90394780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410201501.XA Active CN117782026B (en) | 2024-02-23 | 2024-02-23 | Suspension bridge cable sag measuring device and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117782026B (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2060453C1 (en) * | 1993-08-03 | 1996-05-20 | Анатолий Павлович Архаров | Device measuring deviation of distance between crossing axes of holes |
| JP2007316079A (en) * | 2002-04-02 | 2007-12-06 | Kunihiko Hyodo | Mounting member for measure tape |
| CN104266628A (en) * | 2014-10-22 | 2015-01-07 | 济南易恒技术有限公司 | Camshaft signal panel angle detection gauge |
| CN107525496A (en) * | 2017-07-27 | 2017-12-29 | 中铁大桥局集团有限公司 | Ultra-Long Spans galvanized wire for suspension bridge sag measurement apparatus and its measuring method |
| KR101846521B1 (en) * | 2018-01-24 | 2018-04-09 | 주식회사 지오스토리 | Staf fasteners for underground facilities |
| CN207585623U (en) * | 2017-12-21 | 2018-07-06 | 中交二公局第五工程有限公司 | A kind of 360 ° of main cable strand sag measuring devices of extensible |
| CN108548061A (en) * | 2018-04-19 | 2018-09-18 | 黑龙江工业学院 | A kind of photography-assisting tool for digital building mapping |
| FR3077633A1 (en) * | 2018-02-07 | 2019-08-09 | Oda Electronics Limited | Laser level indicator without physical adjustment and method of assembly and treatment |
| CN111879296A (en) * | 2020-07-30 | 2020-11-03 | 中国三冶集团有限公司 | Miniature laser marking instrument mounting structure applied to cable bridge construction |
| CN111998839A (en) * | 2020-07-10 | 2020-11-27 | 北京城建集团有限责任公司 | Support column positioning and verticality detection system based on reverse construction method |
| CN213932548U (en) * | 2021-01-27 | 2021-08-10 | 王义涛 | Hydraulic engineering supervises and uses perpendicular detection chi |
| CN217716432U (en) * | 2022-04-14 | 2022-11-01 | 中铁广州工程局集团有限公司 | Prism device for precisely measuring sag of reference cable strand of main cable of suspension bridge |
| CN115790527A (en) * | 2022-11-30 | 2023-03-14 | 北京建业通工程检测技术有限公司 | Measuring device for subway shield tunnel |
| CN116222887A (en) * | 2022-12-30 | 2023-06-06 | 天地上海采掘装备科技有限公司 | Multi-bit state testing device and testing method for floating oil seal |
| CN219221927U (en) * | 2023-04-17 | 2023-06-20 | 山东省水利工程试验中心有限公司 | Building straightness detection device that hangs down |
| CN116518250A (en) * | 2023-05-06 | 2023-08-01 | 昆明人为峰科技有限公司 | Automatic find perpendicular total powerstation prism device |
| JP2023131780A (en) * | 2022-03-10 | 2023-09-22 | 株式会社フジタ | Prism mounting fixture |
| CN117249807A (en) * | 2023-10-26 | 2023-12-19 | 江苏众和工程检测有限公司 | Settlement degree measuring device for bridge construction |
-
2024
- 2024-02-23 CN CN202410201501.XA patent/CN117782026B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2060453C1 (en) * | 1993-08-03 | 1996-05-20 | Анатолий Павлович Архаров | Device measuring deviation of distance between crossing axes of holes |
| JP2007316079A (en) * | 2002-04-02 | 2007-12-06 | Kunihiko Hyodo | Mounting member for measure tape |
| CN104266628A (en) * | 2014-10-22 | 2015-01-07 | 济南易恒技术有限公司 | Camshaft signal panel angle detection gauge |
| CN107525496A (en) * | 2017-07-27 | 2017-12-29 | 中铁大桥局集团有限公司 | Ultra-Long Spans galvanized wire for suspension bridge sag measurement apparatus and its measuring method |
| CN207585623U (en) * | 2017-12-21 | 2018-07-06 | 中交二公局第五工程有限公司 | A kind of 360 ° of main cable strand sag measuring devices of extensible |
| KR101846521B1 (en) * | 2018-01-24 | 2018-04-09 | 주식회사 지오스토리 | Staf fasteners for underground facilities |
| FR3077633A1 (en) * | 2018-02-07 | 2019-08-09 | Oda Electronics Limited | Laser level indicator without physical adjustment and method of assembly and treatment |
| CN108548061A (en) * | 2018-04-19 | 2018-09-18 | 黑龙江工业学院 | A kind of photography-assisting tool for digital building mapping |
| CN111998839A (en) * | 2020-07-10 | 2020-11-27 | 北京城建集团有限责任公司 | Support column positioning and verticality detection system based on reverse construction method |
| CN111879296A (en) * | 2020-07-30 | 2020-11-03 | 中国三冶集团有限公司 | Miniature laser marking instrument mounting structure applied to cable bridge construction |
| CN213932548U (en) * | 2021-01-27 | 2021-08-10 | 王义涛 | Hydraulic engineering supervises and uses perpendicular detection chi |
| JP2023131780A (en) * | 2022-03-10 | 2023-09-22 | 株式会社フジタ | Prism mounting fixture |
| CN217716432U (en) * | 2022-04-14 | 2022-11-01 | 中铁广州工程局集团有限公司 | Prism device for precisely measuring sag of reference cable strand of main cable of suspension bridge |
| CN115790527A (en) * | 2022-11-30 | 2023-03-14 | 北京建业通工程检测技术有限公司 | Measuring device for subway shield tunnel |
| CN116222887A (en) * | 2022-12-30 | 2023-06-06 | 天地上海采掘装备科技有限公司 | Multi-bit state testing device and testing method for floating oil seal |
| CN219221927U (en) * | 2023-04-17 | 2023-06-20 | 山东省水利工程试验中心有限公司 | Building straightness detection device that hangs down |
| CN116518250A (en) * | 2023-05-06 | 2023-08-01 | 昆明人为峰科技有限公司 | Automatic find perpendicular total powerstation prism device |
| CN117249807A (en) * | 2023-10-26 | 2023-12-19 | 江苏众和工程检测有限公司 | Settlement degree measuring device for bridge construction |
Non-Patent Citations (1)
| Title |
|---|
| 张文斌.千米跨公铁两用斜拉桥超高主塔施工关键技术.《 交通科技》.2020,(第03期),11-15. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117782026A (en) | 2024-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216205954U (en) | Perpendicularity detection device for project supervision | |
| CN117782026B (en) | Suspension bridge cable sag measuring device and measuring method thereof | |
| CN110608755B (en) | Heave measurement performance detection device and method for inertial navigation equipment | |
| CN114459683A (en) | Roll collar detecting system | |
| CN216158754U (en) | Distance measuring device for mapping geographic information | |
| CN207123289U (en) | A kind of wall body vertical degree detection means for building | |
| CN112880656A (en) | Verticality and flatness inspection device for building wall and detection method | |
| CN111288953B (en) | Wall surface flatness measurement and correction device | |
| CN219213206U (en) | Mechanical arm moving resistance test board | |
| CN109374208B (en) | Equipment for detecting static balance of propeller and error compensation method thereof | |
| CN108775891B (en) | Distance measuring instrument | |
| CN108195270B (en) | Valve body verticality measuring device | |
| CN112880517B (en) | Bridge body vertical displacement measuring device | |
| CN212932341U (en) | Friction coefficient testing machine | |
| CN213956205U (en) | Thick detection device of stake hole sediment for building engineering supervision | |
| CN212340089U (en) | Calliper device | |
| CN115356063A (en) | Highway bridge bearing capacity detection device | |
| CN219573361U (en) | Dynamic balance measuring equipment for bearing | |
| CN202886059U (en) | Calibration device of air flotation dead-load-type miniature force sensor | |
| CN219776712U (en) | Intelligent straightness detection tool that hangs down of building | |
| CN219870120U (en) | Simple torque sensor calibration machine | |
| CN220084033U (en) | High mound laser positioning base | |
| JPH1047945A (en) | Centering measuring device and measuring method | |
| CN111307369A (en) | Rigid body moment of inertia measuring device | |
| CN219064664U (en) | Slowly-descending device for weight metering verification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |