CN108168437B - Bus stretching amount detection method in high-voltage distribution system - Google Patents
Bus stretching amount detection method in high-voltage distribution system Download PDFInfo
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- CN108168437B CN108168437B CN201711445295.3A CN201711445295A CN108168437B CN 108168437 B CN108168437 B CN 108168437B CN 201711445295 A CN201711445295 A CN 201711445295A CN 108168437 B CN108168437 B CN 108168437B
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a bus stretching amount detection method in a high-voltage distribution system, which is matched with a bus stretching amount detection device and comprises two end supporting rods and a middle supporting rod, wherein the middle supporting rod is fixedly provided with a fixed seat, three buses are fixedly connected with the fixed seat, the end supporting rod is fixedly provided with a circular fixed disk, the fixed disk is uniformly provided with three laser transmitters, the generation paths of the laser transmitters are parallel to a connecting shaft, and a rotating disk is provided with laser receiving structures corresponding to the laser transmitters; the rotating disc is positioned on one side of the fixed disc close to the bus fixing seat; the laser receiving structure comprises a laser plate arranged on one side surface of the rotating disc close to the fixed disc, a plurality of laser receivers are arranged on the laser plate, and the distances between the laser receivers and the axis of the rotating disc are the same; and measuring the stretching amount of the bus through the torsion angle of the bus. The invention has the advantages of accurate calculation, convenient detection and the like.
Description
Technical Field
The invention relates to a detection system of power grid equipment, in particular to a bus stretching amount detection method in a high-voltage distribution system.
Background
Tubular buses in operation of a transformer substation move due to expansion with heat and contraction with cold under the influence of different environments, different climates (such as high-temperature heat, rain and snow freezing), short-circuit faults of the buses in the near area and bus hardware faults, the tubular buses and the brackets generate friction, so that supporting porcelain bottles below the tubular buses are subjected to larger stress, the service life of the porcelain bottles is shortened, and even bus support porcelain bottle fracture accidents occur.
The thermal expansion and cold contraction of the bus lead to different lengths of the bus and lead to the bus being sunken or pulled excessively, so that the performance of the bus is influenced, the strength of the bus fixing device is also influenced, and under different environments, if the stretching amount of the bus cannot be monitored timely, the power transmission stability and safety of a transformer substation can be influenced, and great economic loss and potential safety hazards are caused.
Disclosure of Invention
The invention aims to provide a method for detecting the bus stretching amount in a high-voltage distribution system aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to simplify the bus stretching amount detection steps and improve the detection precision.
The purpose of the invention can be realized by the following technical scheme: a bus stretching amount detection method in a high-voltage distribution system is characterized in that the method is matched with a bus stretching amount detection device, the device comprises two end supporting rods and a middle supporting rod, a fixed seat is fixedly arranged on the middle supporting rod, three buses are fixedly connected with the fixed seat, a round fixed disk is fixedly arranged on the end supporting rod, a connecting shaft is fixedly arranged in the middle of the fixed disk and connected with a rotating disk, a torsion spring capable of driving the rotating disk to rotate relative to the connecting shaft is arranged between the rotating disk and the connecting shaft, the buses are fixedly connected with the fixed disk and the rotating disk, three laser transmitters are uniformly arranged on the fixed disk, the generation paths of the laser transmitters are parallel to the connecting shaft, and laser receiving structures corresponding to the laser transmitters are arranged on the rotating disk; the rotating disc is positioned on one side of the fixed disc close to the bus fixing seat; the laser receiving structure comprises a laser plate arranged on one side surface of the rotating disc close to the fixed disc, a plurality of laser receivers are arranged on the laser plate, and the distances between the laser receivers and the axis of the rotating disc are the same;
The detection method comprises the following steps: setting an initial state of a bus in a state of not sending distortion, assuming that a state that a laser receiver positioned in the middle of a laser receiving disc receives a laser beam sent by a laser transmitter in the initial state is the initial state, recording the laser receiver receiving the laser beam sent by the laser transmitter in the initial state as an initial laser receiver, calculating and marking an inclination angle of the bus relative to the initial state when other laser receivers receive the laser beam sent by the laser transmitter; during detection, the laser transmitter is started, the inclination angle corresponding to the laser receiver which receives laser beams emitted by the laser transmitter is the bus twisting inclination angle in the state, the difference between the initial length of the bus and the length of the bus at the moment can be calculated through the distance between the fixed disc and the rotating disc and the inclination angle, and the difference is the bus stretching amount.
The torsion spring drives the rotating disc to rotate relative to the connecting shaft, so that the expansion amount of the bus is still in a tensioned state in a twisting mode, the expansion amount is very small, the interval between the buses cannot be influenced, the laser emitter emits laser and is received by the laser receiver, each laser receiver corresponds to the relative torsion angle of the fixed disc and the rotating disc, the angle can be obtained when a certain laser receiver receives a laser signal, the distance between the fixed disc and the rotating disc is fixed, the length of the bus at the moment can be calculated through the angle, and the difference between the length of the bus and the length of the bus in the initial state is the stretching amount of the bus.
The tensile volume of generating line comes through the torsion angle conversion of rolling disc, can detect the tensile volume of generating line on the one hand, can also change the atress mode of generating line, makes the generating line bear relative balanced tensile force, and the pulling force that the generating line of avoiding fixed position both sides received changes along with environmental change, leads to the vase atress inequality and damages.
The fixed disk can be further provided with a temperature and humidity sensor, a processing unit is arranged, signals received by the temperature and humidity sensor and signals received by the laser receiver are transmitted to a control room on the ground in a wireless mode, and the control room is provided with a working condition machine for counting and analyzing data and storing the data and monitoring and overhauling the condition of the bus.
The rotating disc comprises two first half bodies, a mounting hole is formed in the middle of each first half body, the connecting shaft is inserted into the mounting hole, a spiral avoiding groove is formed in the inner wall of the mounting hole, the torsion spring is arranged in the avoiding groove, two ends of the torsion spring are fixedly connected with the connecting shaft and the inner wall of the mounting hole respectively, three positioning holes are further formed in each first half body, an inwards concave groove is formed in the inner wall of each positioning hole, a spherical annular groove is formed in each groove corresponding to each first half body, a hemispherical hinge block is further arranged in each positioning hole, each two hinge joint can form a sphere matched with the annular groove, a through hole allowing a bus to pass through is formed in each hinge block, and the bus is fixedly connected with the hinge blocks; the hinge block is connected in the ring groove in a sliding manner; the two half bodies are detachably connected through bolts.
The straight line distance that the rolling disc need accomplish between the relative fixed disk is unchangeable, and can the relative fixed disk rotation, in order to prevent that the generating line from taking place wearing and tearing by the department of buckling, is provided with two articulated blocks, and two articulated blocks form a spheroid, can be at the annular internal rotation, and the generating line is fixed in the perforation on the spheroid.
The hinge block is characterized by further comprising a pressing sheet matched with the half body I, the pressing sheet is provided with a pressing portion matched with the through hole and a fixing portion matched with the inner side face of the hinge block, and the inner surface of the pressing portion is provided with inverted teeth inclined towards the fixing portion.
The two half bodies are installed from the two ends of the bus to the middle respectively, the inverted teeth are made to follow the installation direction, after the installation is completed, the inverted teeth have an anti-skidding effect on the bus, the inverted teeth on the two half bodies are opposite in direction, and the bus can be effectively prevented from moving.
The pressing part can buffer the space between the two half bodies, and the clamping force of the bus can be improved.
The connecting shaft is provided with two bearings, the inner ring of each bearing is sleeved and fixed on the connecting shaft, the outer ring of each bearing is provided with a plurality of bulges, and the side surface of the rotating disc is provided with a notch matched with the bulges.
The structure is convenient to disassemble and assemble, and can prevent the rotating disc from rotating relative to the connecting shaft on the premise of not influencing the rotation of the rotating disc.
The fixed disk comprises two half bodies II, the fixed disk close to one side of the rotating disk is fixedly connected with the connecting shaft, the half bodies II are provided with insertion holes corresponding to the three buses, step holes with diameters larger than the insertion holes are formed in the insertion holes, a rolling sheet is arranged in each step hole, one end of each rolling sheet is fixedly connected with the wall surface of the inner end of each step hole, the diameter of one end, fixedly connected with the wall surface of each step hole, of each rolling sheet is larger than that of the other end of each rolling sheet, and each rolling sheet is unfolded to form a hollow conical column.
The fixing of generating line on the fixed disk, it is firm to need to satisfy the location, and allow a certain amount of radial expansion and shrink, because the generating line when environment such as temperature changes, its diameter can take place slight change, in order not to cause stress concentration to the connecting piece that is used for fixed generating line, be provided with the roll piece in the jack, the outer end of this roll piece can be automatic roll-up under the condition of not atress, when alternate the generating line, can also extrude this roll piece and continue the roll-up, make it form an annular position sleeve after the roll-up, make it not only can compress tightly with the generating line under the interlude of generating line, two half bodies one can be fixed firm after passing through bolted connection, make roll piece roll-up to the generating line and compress tightly the number of turns that needs, buffer space has, and the generating line is fixed firm, can also prevent.
The inner side surface and the outer side surface of the rolling sheet are respectively provided with teeth capable of being meshed.
In order to prevent the bus bar from slipping with the winding sheet, teeth are respectively arranged on two sides of the winding sheet, and after winding, the mutually attached parts can form a meshing state, so that the winding sheet is not easy to loosen.
The rolling sheet is made of metal materials.
The compressing pieces are made of rubber materials.
The fixing base is located the positive centre of two fixed disks, the rolling disc is located the positive centre of fixed disk and fixing base with it complex.
The connecting shaft is also fixedly connected with the fixed seat.
Support and fix the generating line through this structure, not only make the generating line no longer be in flagging state, and the pulling force that the generating line bore is balanced, make each parts life longer, entire system safe and reliable more.
Drawings
Fig. 1 is a schematic view of the overall structure of a bus bar stretching amount detecting system.
FIG. 2 is a schematic plan view of a rotary disk in the present apparatus.
FIG. 3 is a cross-sectional view of the rotary disk in the present apparatus.
Fig. 4 is a schematic plan view of the fixing plate of the device.
FIG. 5 is a cross-sectional view of a holding pan in the present device.
Fig. 6 is a partially enlarged view of a position a in fig. 4.
Fig. 7 is a partially enlarged view of a position B in fig. 5.
In the figure, a bus; 11. an end support bar; 12. a middle support bar; 21. a fixed seat; 22. fixing the disc; 23. a connecting shaft; 24. rotating the disc; 31. a laser transmitter; 32. a laser plate; 33. a laser receiver; 41. a first half body; 42. mounting holes; 43. an avoidance groove; 44. positioning holes; 45. a groove; 46. a ring groove; 47. a torsion spring; 48. a hinged block; 49. perforating; 5. a compression sheet; 51. a pressing part; 52. a fixed part; 53. chamfering; 54. a bearing; 55. a protrusion; 61. a second half body; 62. a jack; 63. a stepped bore; 64. and (6) rolling the sheets.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the high-voltage distribution system includes three parallel buses a, the device includes two end support rods 11 and a middle support rod 12, a fixed seat 21 is fixedly disposed on the middle support rod, all three buses a are fixedly connected with the fixed seat 21, a circular fixed disk 22 is fixedly disposed on the end support rod 11, a connecting shaft 23 is fixedly disposed in the middle of the fixed disk 22, the connecting shaft 23 is connected with a rotating disk 24, a torsion spring 47 capable of driving the rotating disk 24 to rotate relative to the connecting shaft 23 is disposed between the rotating disk 24 and the connecting shaft 23, the buses a are fixedly connected with the fixed disk 22 and the rotating disk 24, three laser emitters 31 are uniformly disposed on the fixed disk 22, the generation paths of the laser emitters 31 are parallel to the connecting shaft 23, and laser receiving structures corresponding to the laser emitters 31 are disposed on the rotating disk 24; the rotating disc 24 is positioned on one side of the fixed disc 22 close to the fixed seat 21 of the bus bar a.
The torsion spring 47 drives the rotating disc 24 to rotate relative to the connecting shaft 23, so that the expansion amount of the bus bar a is still in a tensioned state in a twisting mode, of course, the expansion amount is very small, the interval between the bus bars a is not influenced, the laser transmitter 31 transmits laser and is received by the laser receiver 33, each laser receiver 33 corresponds to a relative torsion angle of the fixed disc 22 and the rotating disc 24, the angle can be obtained when a certain laser receiver 33 receives a laser signal, because the distance between the fixed disc and the rotating disc 24 is fixed, the length of the bus bar a at the moment can be calculated through the angle, and the difference between the length of the bus bar a at the moment and the length of the bus bar a in the initial state is the stretching amount of the bus bar a.
The stretching amount of the bus a is converted through the torsion angle of the rotating disc 24, on one hand, the stretching amount of the bus a can be detected, the stress mode of the bus a can be changed, the bus a bears relatively balanced stretching force, and the phenomenon that the pulling force of the bus a on the two sides of the 52-position fixing part changes along with the environmental change, so that the porcelain insulator is damaged due to uneven stress is avoided.
The fixed disk 22 can be further provided with a temperature and humidity sensor, a processing unit is arranged, signals received by the temperature and humidity sensor and signals received by the laser receiver 33 are transmitted to a control room on the ground in a wireless mode, and the control room is provided with a working condition machine for counting and analyzing all data and storing the data and monitoring and overhauling the condition of the bus a.
As shown in fig. 2, 3 and 6, the rotating disc 24 includes two half bodies 41, a mounting hole 42 is formed in the middle of each half body, the connecting shaft 23 is inserted into the mounting hole 42, a spiral avoiding groove 43 is formed in the inner wall of the mounting hole 42, a torsion spring 47 is arranged in the avoiding groove 43, two ends of the torsion spring 47 are fixedly connected with the connecting shaft 23 and the inner wall of the mounting hole 42 respectively, three positioning holes 44 are further formed in each half body, a concave groove 45 is formed in the inner wall of each positioning hole 44, a spherical annular groove 46 is formed in the corresponding groove 45 of each half body 41, a hemispherical hinge block 48 is further arranged in each positioning hole 44, two hinge heads can form a sphere matched with the annular groove 46, a through hole 49 allowing the bus a to pass through is formed in each hinge block 48, and the bus a is fixedly connected with the hinge block 48; the hinge block 48 is slidably connected in the ring groove 46; the two half bodies 41 are detachably connected through bolts.
The rotating disk 24 needs to have a short linear distance with respect to the fixed disk 22 and can rotate with respect to the fixed disk 22, in order to prevent the bus bar a from being worn at the bent position, two hinge blocks 48 are provided, the two hinge blocks 48 form a sphere which can rotate in the ring groove 46, and the bus bar a is fixed in a through hole 49 on the sphere.
The hinge block further comprises a pressing sheet 5 matched with the half body I41, the pressing sheet 5 is provided with a pressing part 51 matched with the through hole 49 and a fixing part 52 matched with the inner side surface of the hinge block 48, and the inner surface of the pressing part 51 is provided with inverted teeth 53 inclined towards the fixing part 52.
The two half bodies 41 are respectively installed from the two ends to the middle of the bus a, the inverted teeth 53 are made to follow the installation direction, after the installation is completed, the inverted teeth 53 have an anti-skidding effect on the bus a, and the inverted teeth 53 on the two half bodies 41 are opposite in direction, so that the bus a can be effectively prevented from moving.
The pressing portion 51 can buffer between the two half bodies 41 and can increase the clamping force of the bus bar a.
The connecting shaft 23 is provided with two bearings 54, the inner ring of the bearing 54 is sleeved and fixed on the connecting shaft 23, the outer ring of the bearing 54 is provided with a plurality of bulges 55, and the side surface of the rotating disc 24 is provided with a notch matched with the bulges 55.
This structure is easy dismounting not only, can prevent that rolling disc 24 from rotating 23 relative even under the prerequisite that does not influence rolling disc 24 rotatory moreover.
The laser receiving structure comprises a laser plate 32 arranged on one side surface of the rotating disc 24 close to the fixed disc 22, a plurality of laser receivers 33 are arranged on the laser plate 32, and the distances between the laser receivers 33 and the axis of the rotating disc 24 are the same.
As shown in fig. 4, 5 and 7, the fixed disk includes two half bodies 61, the fixed disk near the rotating disk 24 is fixedly connected with the connecting shaft 23, the half bodies 61 are provided with insertion holes 62 corresponding to the three bus bars a, a stepped hole 63 with a diameter larger than that of the insertion hole 62 is arranged in the insertion hole 62, a rolling sheet 64 is arranged in the stepped hole 63, one end of the rolling sheet 64 is fixedly connected with the wall surface of the inner end of the stepped hole 63, the diameter of one end of the rolling sheet 64 fixedly connected with the wall surface of the stepped hole 63 is larger than that of the other end, and the rolling sheet 64 is unfolded to form a hollow conical column shape.
The bus a is fixed on the fixed disc 22, so that the requirement of firm positioning is met, and a certain amount of radial expansion and contraction are allowed, because the diameter of the bus a can slightly change when the environments such as temperature and the like change, in order to avoid stress concentration on a connecting piece for fixing the bus a, a winding sheet 64 is arranged in the insertion hole 62, the outer end of the winding sheet 64 can be automatically wound under the condition of no stress, when the bus a is inserted, the winding sheet 64 can be extruded to continue winding, an annular positioning sleeve is formed after the winding sheet is wound, the annular positioning sleeve can be tightly pressed with the bus a under the insertion of the bus a, the two half bodies 41 can be firmly fixed after being connected through bolts, the winding sheet 64 is wound to the number of turns required by the compression of the bus a, the buffer space is provided, the bus a is firmly fixed, and the bus a can be prevented from moving towards any direction.
The inner side surface and the outer side surface of the rolled sheet 64 have teeth that can engage with each other.
In order to prevent the slip between the bus bar a and the winding sheet 64, teeth are provided on both sides of the winding sheet 64, and after winding, the portions that are bonded to each other can be brought into a meshing state, so that the winding sheet 64 is not easily loosened.
The rolling sheet 64 is made of metal.
The pressing sheet 5 is made of rubber.
The fixed base 21 is located at the middle of the two fixed discs 22, and the rotating disc 24 is located at the middle of the fixed disc 22 and the fixed base 21 which are matched with the rotating disc.
The connecting shaft 23 is also fixedly connected with the fixed seat 21.
Support and fix bus a through this structure, not only make bus a no longer be in flagging state, and the pulling force that bus a bore is balanced, make each parts life longer, entire system safe and reliable more.
The detection method comprises the following steps: setting an initial state of a bus in a state of not sending distortion, assuming that a state that a laser receiver positioned in the middle of a laser receiving disc receives a laser beam sent by a laser transmitter in the initial state is the initial state, recording the laser receiver receiving the laser beam sent by the laser transmitter in the initial state as an initial laser receiver, calculating and marking an inclination angle of the bus relative to the initial state when other laser receivers receive the laser beam sent by the laser transmitter; during detection, the laser transmitter is started, the inclination angle corresponding to the laser receiver which receives laser beams emitted by the laser transmitter is the bus twisting inclination angle in the state, the difference between the initial length of the bus and the length of the bus at the moment can be calculated through the distance between the fixed disc and the rotating disc and the inclination angle, and the difference is the bus stretching amount.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. A bus stretching amount detection method in a high-voltage distribution system is characterized in that the method is matched with a bus (a) stretching amount detection device, the device comprises two end supporting rods (11) and a middle supporting rod (12), a fixed seat (21) is fixedly arranged on the middle supporting rod, three buses (a) are fixedly connected with the fixed seat (21), a round fixed disk (22) is fixedly arranged on the end supporting rod (11), a connecting shaft (23) is fixedly arranged in the middle of the fixed disk (22), the connecting shaft (23) is connected with a rotating disk (24), a torsion spring (47) capable of driving the rotating disk (24) to rotate relative to the connecting shaft (23) is arranged between the rotating disk (24) and the connecting shaft (23), the buses (a) are fixedly connected with the fixed disk (22) and the rotating disk (24), three laser emitters (31) are uniformly arranged on the fixed disk (22), the generation path of the laser emitter (31) is parallel to the connecting shaft (23), and the rotating disc (24) is provided with laser receiving structures corresponding to the laser emitters (31); the rotating disc (24) is positioned on one side of the fixed disc (22) close to the fixed seat (21) of the bus (a); the laser receiving structure comprises a laser plate (32) arranged on one side surface of the rotating disc (24) close to the fixed disc (22), a plurality of laser receivers (33) are arranged on the laser plate (32), and the distances between the laser receivers (33) and the axis of the rotating disc (24) are the same;
The detection method comprises the following steps: setting a bus (a) to be in an initial state without distortion, assuming that the state that a laser receiver positioned in the middle of a laser receiving disc receives a laser beam emitted by a laser emitter (31) in the initial state is in the initial state, recording a laser receiver (33) receiving the laser beam emitted by the laser emitter (31) in the initial state as an initial laser receiver (33), setting the length of the bus (a) in the initial state as the initial length, and calculating and marking the inclination angle of the bus (a) relative to the initial state when other laser receivers (33) receive the laser beam emitted by the laser emitter (31); during detection, the laser transmitter (31) is started, the inclination angle corresponding to the laser receiver (33) which receives laser beams emitted by the laser transmitter (31) is the twisting inclination angle of the bus (a) in the state, the difference between the initial length of the bus (a) and the length of the bus (a) at the moment can be calculated through the distance between the fixed disc (22) and the rotating disc (24) and the inclination angle, and the difference is the stretching amount of the bus (a).
2. The method for detecting the bus stretching amount in the high-voltage distribution system according to claim 1, wherein the rotating disc (24) comprises two half bodies (41), a mounting hole (42) is formed in the middle of each half body (41), the connecting shaft (23) is inserted into the mounting hole (42), a spiral avoiding groove (43) is formed in the inner wall of the mounting hole (42), the torsion spring (47) is arranged in the avoiding groove (43), two ends of the torsion spring (47) are respectively fixedly connected with the connecting shaft (23) and the inner wall of the mounting hole (42), the half body (41) is further provided with three positioning holes (44), the inner wall of each positioning hole (44) is provided with an inward concave groove (45), the grooves (45) corresponding to the two half bodies (41) form a spherical ring groove (46), and a hemispherical hinge block (48) is further arranged in each positioning hole (44), the two hinged joints can form a ball body matched with the ring groove (46), a through hole (49) allowing a bus (a) to pass through is formed in the hinged block (48), and the bus (a) is fixedly connected with the hinged block (48); the hinge block (48) is connected in the annular groove (46) in a sliding manner; the two half bodies (41) are detachably connected through bolts.
3. The method for detecting the bus bar stretching amount in the high-voltage distribution system according to claim 2, wherein the stretching amount detecting device further comprises a pressing sheet (5) matched with the half body unit (41), the pressing sheet (5) is provided with a pressing part (51) matched with the through hole (49) and a fixing part (52) matched with the inner side surface of the hinge block (48), and the inner surface of the pressing part (51) is provided with inverted teeth (53) inclined towards the fixing part (52).
4. The method for detecting the bus bar stretching amount in the high-voltage distribution system according to claim 3, wherein the connecting shaft (23) is provided with two bearings (54), an inner ring of each bearing (54) is sleeved and fixed on the connecting shaft (23), a plurality of protrusions (55) are arranged on an outer ring of each bearing (54), and a side surface of the rotating disc (24) is provided with a notch matched with each protrusion (55).
5. The method for detecting the bus stretching amount in the high-voltage distribution system according to claim 1, 2, 3 or 4, wherein the fixed disk comprises two half bodies (61), the fixed disk close to one side of the rotating disk (24) is fixedly connected with the connecting shaft (23), the half bodies (61) are provided with insertion holes (62) corresponding to three buses (a), a stepped hole (63) with a diameter larger than that of the insertion holes (62) is formed in the insertion holes (62), a rolling sheet (64) is arranged in the stepped hole (63), one end of the rolling sheet (64) is fixedly connected with the wall surface of the inner end of the stepped hole (63), the diameter of one end, fixedly connected with the wall surface of the stepped hole (63), of the rolling sheet (64) is larger than that of the other end, and the rolling sheet (64) is in a hollow conical column shape after being unfolded.
6. the method for detecting the bus bar stretching amount in the high-voltage distribution system according to claim 5, wherein the inner side surface and the outer side surface of the roll sheet (64) are respectively provided with engageable teeth.
7. the method for detecting the bus bar stretching amount in the high-voltage distribution system according to claim 6, wherein the roll sheet (64) is made of metal.
8. The bus bar stretching amount detection method in the high-voltage distribution system according to claim 1, 2, 3 or 4, wherein the fixed base (21) is located at the middle of two fixed discs (22), and the rotating disc (24) is located at the middle of the fixed disc (22) and the fixed base (21) which are matched with the rotating disc; the connecting shaft (23) is also fixedly connected with the fixed seat (21).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445295.3A CN108168437B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection method in high-voltage distribution system |
| CN201911049160.4A CN110793446B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection method in high-voltage distribution system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445295.3A CN108168437B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection method in high-voltage distribution system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911049160.4A Division CN110793446B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection method in high-voltage distribution system |
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| Publication Number | Publication Date |
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| CN108168437A CN108168437A (en) | 2018-06-15 |
| CN108168437B true CN108168437B (en) | 2019-12-06 |
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| CN201711445295.3A Active CN108168437B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection method in high-voltage distribution system |
| CN201911049160.4A Active CN110793446B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection method in high-voltage distribution system |
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| CN110984249B (en) * | 2019-12-12 | 2021-03-19 | 河南恒宇工程管理有限公司 | Foundation pit deformation real-time monitoring system |
| CN111336929A (en) * | 2020-03-25 | 2020-06-26 | 重庆三峡学院 | Measuring device is used in civil engineering construction |
| CN113233131B (en) * | 2021-04-19 | 2022-09-09 | 中国矿业大学 | Scraper chain monitoring system and method based on torsion spring light transmittance measurement |
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| GB2070567B (en) * | 1980-03-05 | 1984-04-04 | Macintosh A M | Cable reel |
| CN201063427Y (en) * | 2007-06-21 | 2008-05-21 | 北京泰丰电缆桥架有限公司 | Bus slot connecting-clamping type housing |
| CN102175205B (en) * | 2011-01-20 | 2013-05-08 | 西安理工大学 | Device and method for measuring contour line of pipe wall thickened section of drill rod |
| CN102323148B (en) * | 2011-06-10 | 2013-06-19 | 重庆工程职业技术学院 | Lever type laser detection device for material tension |
| CN102749037B (en) * | 2012-05-17 | 2014-11-05 | 合肥工业大学 | Photoelectric type derrick deflection detection device and detection method thereof |
| US20160377413A1 (en) * | 2015-06-23 | 2016-12-29 | Iakov Goldberg | Methods and devices for detection of movements and deformations of bodies or parts thereof |
| CN204947515U (en) * | 2015-06-30 | 2016-01-06 | 平高集团有限公司 | A kind of pipe bus supports armour clamp device |
| CN205138439U (en) * | 2015-11-27 | 2016-04-06 | 国家电网公司 | GIS generating line cabin deformation monitor sensor based on laser micrometer technique |
| CN105910539B (en) * | 2016-05-30 | 2018-05-04 | 河北工业大学 | Cable cover(ing) tensile elongation measuring device and method based on machine vision |
| CN206556586U (en) * | 2017-01-10 | 2017-10-13 | 北京航天计量测试技术研究所 | One kind is without dynamometry displacement transducer take-up device |
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| CN110793446A (en) | 2020-02-14 |
| CN110793446B (en) | 2021-03-16 |
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