Composite insulator coaxiality measuring instrument based on laser ranging

Abstract

The invention relates to the technical field of measuring equipment, in particular to a composite insulator coaxiality measuring instrument based on laser ranging, which comprises a bottom plate, a vertical plate is mounted on the bottom plate, a concentric-square-shaped plate is mounted on the vertical plate in a sliding manner, a lifting mechanism for lifting the concentric-square-shaped plate is arranged on the vertical plate, a fixing rod is rotatably mounted on the vertical plate, and a laser ranging device is mounted on the fixing rod. The fixing rod is provided with a fixing mechanism used for fixing the composite insulator, a rotating motor is installed on the side wall of the vertical plate, a driving shaft of the rotating motor rotatably penetrates through the vertical plate and is fixed to the fixing rod, and the concentric-square-shaped plate is provided with a measuring mechanism used for coaxially measuring the umbrella skirt of the composite insulator. The vertical plate is provided with a transmission mechanism used for transmission connection between the measuring mechanism and a driving shaft of the rotating motor through the transmission mechanism. The lifting mechanism comprises a lifting hole formed in the vertical plate. Compared with the prior art, the coaxiality detection device can detect the coaxiality of different insulator umbrella skirts, the detection effect is good, and detection is convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the field of measuring devices, and particularly relates to a composite insulator coaxiality measuring instrument based on laser ranging. BACKGROUND

[0002] In the early years, insulators are mostly used on electric poles. With the development of science and technology, a plurality of disc-shaped insulators are hung on one end of a high-voltage electric wire connecting tower to increase the creepage distance, and the insulators are usually made of glass or ceramic and are called insulators. The insulators play two basic roles in overhead transmission lines, namely, supporting the electric wire and preventing the electric current from returning to the ground. The two roles must be guaranteed, and the insulators should not be disabled due to various mechanical and electrical stresses caused by changes in environmental and electrical load conditions, otherwise the insulators cannot play a significant role and the service and operation life of the whole line will be damaged.

[0003] For example, the application No. CN118274777A discloses an insulator coaxiality detection device, which comprises a workbench, a sliding rail mechanism is arranged on the workbench, a supporting mechanism and a moving mechanism are arranged on the sliding rail mechanism, the supporting mechanism is used for fixing an insulator product to be detected, a measuring mechanism is installed on the moving mechanism, the measuring mechanism comprises a hole measuring mechanism and a column measuring mechanism, the hole measuring mechanism is used for detecting the coaxiality between two holes, the hole measuring mechanism comprises a laser generator and a light spot display screen, a light spot is formed on the light spot display screen when a laser beam generated by the laser generator is irradiated on the light spot display screen, and the column measuring mechanism is used for detecting the coaxiality of a cylindrical body. However, the application still has some defects, the coaxiality of the installation hole of the insulator can be detected intelligently, but the coaxiality of the umbrella skirt of the insulator cannot be detected, and the detection has certain limitations.

[0004] When the composite insulator is produced, the coaxiality of the umbrella skirt of the insulator needs to be ensured in addition to the coaxiality of the installation hole of the insulator. If the coaxiality of the umbrella skirt is not ensured, the surface electric field distribution of the insulator will be distorted, especially under high voltage, local electric field concentration can be generated, corona discharge is caused, and corrosive gases such as ozone and nitrogen oxides generated by the corona can accelerate the aging of the silicone rubber sheath and the core rod of the insulator, thereby reducing the service life of the insulator. If the plane angle of the umbrella skirt deviates, the axial direction of the umbrella skirt is offset, on one hand, continuous water film is formed between the umbrella skirts, the effective creepage distance is reduced, and on the other hand, the gravity distribution of the insulator is changed, and under the action of external forces such as wind swing and vibration, additional torque is generated, which can cause the core rod or the connection between the hardware to be loose, thereby reducing the service life of the insulator. In order to ensure the coaxiality of the umbrella skirt of the composite insulator, the coaxiality of the umbrella skirt needs to be detected.

[0005] Therefore, based on the above problems, the application discloses a composite insulator coaxiality measuring instrument based on laser ranging. SUMMARY

[0006] In view of the defects of the prior art, the composite insulator coaxiality measuring instrument based on laser ranging is provided to solve the problems in the background art.

[0007] To achieve the above object, the application provides the following technical scheme: a composite insulator coaxiality measuring instrument based on laser ranging, comprising a bottom plate, a vertical plate is installed on the bottom plate, a back-shaped plate is slidingly installed on the vertical plate, a lifting mechanism for lifting the back-shaped plate is arranged on the vertical plate, a fixed rod is rotatably installed on the vertical plate, a fixing mechanism for fixing the composite insulator is arranged on the fixed rod, a rotating motor is installed on the side wall of the vertical plate, the driving shaft of the rotating motor is rotatably penetrated through the vertical plate and fixed with the fixed rod, a measuring mechanism for coaxial measurement of the composite insulator umbrella skirt is arranged on the back-shaped plate, and a transmission mechanism is arranged on the vertical plate for transmission connection between the measuring mechanism and the driving shaft of the rotating motor.

[0008] The lifting mechanism comprises a lifting hole arranged on the vertical plate, a lifting screw is rotatably installed in the lifting hole, a lifting motor is installed on the upper end of the vertical plate, the driving shaft of the lifting motor is rotatably penetrated through the vertical plate and coaxially installed with the lifting screw, a lifting block is sleeved with external threads on the lifting screw, the lifting block is slidingly connected with the inner wall of the lifting hole, and the back-shaped plate is fixed with the lifting block.

[0009] Further, the fixing mechanism comprises a cross hole arranged on the fixed rod, a fixing screw is rotatably installed in the cross hole, a cross block is sleeved with external threads on the fixing screw, the cross block is slidingly connected with the cross hole, an adjusting motor is installed on one end of the fixed rod, the driving shaft of the adjusting motor is rotatably penetrated through the fixed rod and coaxially installed with the fixing screw, a plurality of support members are arranged on the circumferential side of the fixed rod, the support member comprises a top plate and an electric telescopic rod, the electric telescopic rod is fixed with the top plate, and a plurality of support members are respectively installed on the circumferential side of the fixed rod and the cross block.

[0010] Further, the measuring mechanism comprises two moving plates in sliding connection with the inner wall of the back-shaped plate, two winding rollers are rotatably installed between the two moving plates, the same roll of optical path paper is wound on the two winding rollers, a screw rod and a rotating rod are rotatably installed in the back-shaped plate, the screw rod is threadedly extended through the two moving plates, the rotating rod is slidably extended through the two moving plates and one of the winding rollers, one end of the screw rod and the rotating rod is rotatably extended through the back-shaped plate and the lifting block, a back-shaped lifting plate is arranged below the two moving plates, a fine adjustment mechanism for lifting the back-shaped lifting plate is arranged on the moving plate, a buffer plate is arranged below the back-shaped lifting plate, the buffer plate and the back-shaped lifting plate are fixed by a plurality of buffer members, a deflection hole is arranged on the buffer plate, a deflection plate is rotatably installed in the deflection hole, a deflection column is fixedly and penetratively arranged on the deflection plate, a laser sensor is installed on the upper end of the deflection column, a stop plate is installed on the lower end of the deflection column, a roller shaft is installed on the lower end of the stop plate, a baffle is arranged on the roller shaft, and the roller shaft and the baffle are movably installed by a fixing bolt.

[0011] Further, the fine adjustment mechanism comprises a plurality of threaded rods fixedly installed with the upper end of the back-shaped lifting plate, a threaded sleeve is threadedly arranged on the threaded rod, the upper end of the threaded sleeve is rotatably installed with the moving plate, a fine adjustment motor is installed on the upper end of the moving plate, the driving shaft of the fine adjustment motor is rotatably extended through the moving plate and coaxially installed with the threaded sleeve, a plurality of fine adjustment pulleys are coaxially installed on the threaded sleeve, and the plurality of fine adjustment pulleys are drivingly connected by a synchronous belt.

[0012] Further, the buffer member comprises a telescopic rod and a telescopic spring, the telescopic spring is sleeved on the telescopic rod, and the upper and lower ends of the telescopic rod and the telescopic spring are fixedly installed with the back-shaped lifting plate and the buffer plate respectively.

[0013] Further, the transmission mechanism comprises a transmission shaft rotatably installed with the lifting block, the transmission shaft and the screw rod are drivingly connected by an intermittent mechanism, a driven pulley is coaxially installed on the transmission shaft, a main pulley is coaxially installed on the driving shaft of the rotating motor, an adjusting hole is arranged on the vertical plate, an adjusting screw rod is rotatably installed in the adjusting hole, an adjusting block is threadedly arranged on the adjusting screw rod, the adjusting block is in sliding connection with the inner wall of the adjusting hole, an adjusting pulley is rotatably installed on the adjusting block, the adjusting pulley, the main pulley and the driven pulley are drivingly connected by a synchronous belt, a transmission hole is arranged on the vertical plate, one end of the lifting screw rod and the adjusting screw rod is rotatably extended through the vertical plate and into the transmission hole, a first bevel gear is coaxially installed on the part of the adjusting screw rod located in the transmission hole, a second bevel gear is coaxially installed on the part of the lifting screw rod located in the transmission hole, the first bevel gear and the second bevel gear are meshingly connected, a first pulley is coaxially installed on the transmission shaft, a second pulley is coaxially installed on the rotating rod, and the first pulley and the second pulley are drivingly connected by a synchronous belt.

[0014] Further, the intermittent mechanism comprises a special-shaped wheel and a sector wheel matched with each other, the special-shaped wheel is coaxially installed with the lead screw, the sector wheel is coaxially installed with the transmission shaft, a plurality of sector grooves and a poking groove are arranged on the special-shaped wheel, the plurality of sector grooves and the poking groove are arrayed on the circumferential side of the special-shaped wheel, the sector grooves and the poking groove are staggered, the sector wheel is arranged in a large-angle sector shape, the arc surface of the sector wheel is matched with the sector groove, the poking plate is fixedly installed outside the sector wheel, the poking rod is installed on the poking plate, and the poking rod is matched with the poking groove.

[0015] Further, the surface of the light path paper is coated with fluorescent powder.

[0016] Further, the deflection plate is rotationally installed between the inner wall of the deflection hole through a volute spring.

[0017] Compared with the prior art, the application provides a composite insulator coaxiality measuring instrument based on laser ranging, which has the following beneficial effects:

[0018] 1. By setting the lifting mechanism and the fine adjustment mechanism, the volume of different composite insulators is different, and the radius of the umbrella skirt also has a large difference. The lifting mechanism can adjust the position of the roller shaft according to the size of the composite insulator, and is suitable for detecting the coaxiality of insulators of different sizes. Different umbrella skirt sizes in the same composite insulator are also different, and the fine adjustment mechanism can fine adjust the position of the roller shaft, and is suitable for detecting the coaxiality of different umbrella skirts in the same insulator. The detection range is wide, and the application range is wide.

[0019] 2. By setting the measuring mechanism and the transmission mechanism, through the rotation of the composite insulator, based on laser irradiation, the irradiation path of the laser is reserved, and according to the recorded path data, it can be judged whether the coaxiality of the insulator umbrella skirt is coaxial. The axial offset and the axial offset of the insulator can be judged at the same time. The coaxiality detection effect of the insulator umbrella skirt is good, the detection result is more intuitive, and the detection is more convenient.

[0020] The application can detect the coaxiality of different insulator umbrella skirts, and has good detection effect and convenient detection. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front structure schematic diagram of the application;

[0022] Figure 2 It is a back structure schematic diagram of the application;

[0023] Figure 3 It is a top structure schematic diagram of the application;

[0024] Figure 4It is the structure schematic view of the fixed mechanism in the application;

[0025] Figure 5 It is the structure schematic view of the side structure in the application;

[0026] Figure 6 It is the structure schematic view of the transmission mechanism in the application;

[0027] Figure 7 It is the structure schematic view of the intermittent mechanism in the application;

[0028] Figure 8 It is the structure schematic view of the measuring mechanism in the application;

[0029] Figure 9 It is the structure schematic view of the measuring mechanism in the application;

[0030] Figure 10 It is the structure schematic view of the position of the buffer plate and the deflection plate in the application.

[0031] In the figure: 1, bottom plate; 2, vertical plate; 3, fixed rod; 4, rotating motor; 5, fixed mechanism; 6, back type plate; 7, lifting mechanism; 8, moving plate; 9, back type lifting plate; 10, fine adjustment mechanism; 11, buffer plate; 12, resistance plate; 13, deflection hole; 14, deflection plate; 15, deflection column; 16, laser sensor; 17, winding roller; 18, buffer; 19, telescopic rod; 20, telescopic spring; 21, roller shaft; 22, baffle; 23, fixed bolt; 24, threaded sleeve; 25, threaded rod; 26, fine adjustment pulley; 27, screw rod; 28, rotating rod; 29, lifting motor; 30, lifting screw rod; 31, adjusting hole; 32, adjusting screw rod; 33, adjusting block; 34, adjusting pulley; 35, adjusting motor; 36, main pulley; 37, transmission hole; 38, first bevel gear; 39, second bevel gear; 40, lifting block; 41, lifting hole; 42, transmission shaft; 43, from pulley; 44, first pulley; 45, second pulley; 46, special-shaped wheel; 47, sector; 48, poking plate; 49, poking rod; 50, sector slot; 51, poking slot; 52, cross hole; 53, cross block; 54, top plate; 55, electric telescopic rod; 56, measuring mechanism; 57, transmission mechanism; 58, fixed screw rod; 59, fine adjustment motor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0033] As introduced in the background, in order to solve the above technical problems, the application provides a composite insulator coaxiality measuring instrument based on laser ranging.

[0034] As Figures 1-10 shown, a composite insulator coaxiality measuring instrument based on laser ranging, comprising a bottom plate 1, a vertical plate 2 is installed on the bottom plate 1, a back plate 6 is slidingly installed on the vertical plate 2, a lifting mechanism 7 for lifting the back plate 6 is arranged on the vertical plate 2, a fixed rod 3 is rotatably installed on the vertical plate 2, a fixing mechanism 5 for fixing the composite insulator is arranged on the fixed rod 3, a rotating motor 4 is installed on the side wall of the vertical plate 2, the driving shaft of the rotating motor 4 rotatably penetrates the vertical plate 2 and is fixed with the fixed rod 3, a measuring mechanism 56 for coaxial measurement of the composite insulator umbrella skirt is arranged on the back plate 6, a transmission mechanism 57 is arranged on the vertical plate 2 for transmission connection between the measuring mechanism 56 and the driving shaft of the rotating motor 4.

[0035] In the application, the lifting mechanism 7 comprises a lifting hole 41 arranged on the vertical plate 2, a lifting screw 30 is rotatably installed in the lifting hole 41, a lifting motor 29 is installed at the upper end of the vertical plate 2, the driving shaft of the lifting motor 29 rotatably penetrates the vertical plate 2 and is coaxially installed with the lifting screw 30, a lifting block 40 is externally threaded with the lifting screw 30, the lifting block 40 is slidingly connected with the inner wall of the lifting hole 41, and the back plate 6 is fixed with the lifting block 40.

[0036] Through the above technical features: the lifting motor 29 drives the lifting screw 30 to rotate, the lifting screw 30 drives the lifting block 40 to lift, the lifting block 40 drives the back plate 6 to lift, and the back plate 6 drives the roller shaft 21 to lift, so that the position of the roller shaft 21 can be adjusted according to the position of the umbrella skirt, and the application range of the umbrella skirt detection is wider.

[0037] In the application, the fixing mechanism 5 comprises a cross hole 52 arranged on the fixed rod 3, a fixing screw 58 is rotatably installed in the cross hole 52, a cross block 53 is externally threaded with the fixing screw 58, the cross block 53 is slidingly connected with the cross hole 52, one end of the fixed rod 3 is installed with an adjusting motor 35, the driving shaft of the adjusting motor 35 rotatably penetrates the fixed rod 3 and is coaxially installed with the fixing screw 58, a plurality of support pieces are arranged on the circumferential side of the fixed rod 3, the support pieces comprise a top plate 54 and an electric telescopic rod 55, the electric telescopic rod 55 is fixed with the top plate 54, and the plurality of support pieces are respectively installed on the circumferential side of the fixed rod 3 and the cross block 53.

[0038] Through the above technical features: by adjusting the motor 35 drives the fixed screw 58 rotation, fixed screw 58 drives the cross block 53 moves, cross block 53 through the electric telescopic rod 55 drives the top plate 54 moves, until the appropriate position, then through the electric telescopic rod 55 telescopic drive top plate 54 moves, the top plate 54 will composite insulator mounting hole tight, that is, the composite insulator can be fixed, convenient for different size composite insulator fixed, can be detected on different size composite insulator, the detection range is wide.

[0039] In the application, the measuring mechanism 56 comprises two moving plates 8 which are in sliding connection with the inner wall of the back-shaped plate 6, two winding rollers 17 are rotatably installed between the two moving plates 8, and the same roll of light path paper is wound on the two winding rollers 17. It should be noted that the surface of the light path paper is coated with fluorescent powder. The screw rod 27 and the rotating rod 28 are rotatably installed in the back-shaped plate 6. The screw rod 27 is threaded through the two moving plates 8, and the rotating rod 28 is slidably threaded through the two moving plates 8 and one of the winding rollers 17. One end of the screw rod 27 and the rotating rod 28 is rotatably threaded through the back-shaped plate 6 and the lifting block 40. The back-shaped lifting plate 9 is arranged below the two moving plates 8. The fine adjustment mechanism 10 for lifting the back-shaped lifting plate 9 is arranged on the moving plate 8. It is worth mentioning that the fine adjustment mechanism 10 comprises a plurality of threaded rods 25 which are fixedly installed on the upper end of the back-shaped lifting plate 9. The threaded rod 25 is externally threaded with a threaded sleeve 24. The upper end of the threaded sleeve 24 is rotatably installed with the moving plate 8. The upper end of the moving plate 8 is provided with a fine adjustment motor 59.

[0040] In the application, the driving shaft of the fine adjustment motor 59 is rotatably threaded through the moving plate 8 and coaxially installed with the threaded sleeve 24. A plurality of fine adjustment pulleys 26 are coaxially installed outside the threaded sleeve 24. The plurality of fine adjustment pulleys 26 are drivingly connected through a plurality of synchronous belts. The back-shaped lifting plate 9 is provided with a buffer plate 11 below. The buffer plate 11 and the back-shaped lifting plate 9 are fixed through a plurality of buffer members 18. It should be noted that the buffer member 18 comprises an expansion rod 19 and an expansion spring 20. The expansion spring 20 is sleeved outside the expansion rod 19. The upper and lower ends of the expansion rod 19 and the expansion spring 20 are respectively fixedly installed with the back-shaped lifting plate 9 and the buffer plate 11. The buffer plate 11 is provided with a deflection hole 13. The deflection hole 13 is rotatably installed with a deflection plate 14. It should be noted that the deflection plate 14 and the inner wall of the deflection hole 13 are rotatably installed through a scroll spring. The deflection plate 14 is fixedly provided with a deflection column 15. The upper end of the deflection column 15 is provided with a laser sensor 16. The lower end of the deflection column 15 is provided with an abutting plate 12. The lower end of the abutting plate 12 is provided with a roller shaft 21. The roller shaft 21 is sleeved with a baffle 22. The roller shaft 21 and the baffle 22 are movably installed through a fixing bolt 23.

[0041] By the above technical features: according to the composite insulator of different size, the height of the back type plate 6 is adjusted, the roller shaft 21 is lifted to the appropriate height by the movement of the back type plate 6, at this time, the plurality of threaded sleeves 24 are driven to rotate by the fine adjustment motor 59, the threaded sleeves 24 drive the threaded rods 25 to lift, the threaded rods 25 drive the deflection columns 15 to lift through the back type lifting plate 9 and the buffer plate 11, the deflection columns 15 drive the abutting plate 12 and the roller shaft 21 to lift, until the roller shaft 21 is in contact with the circumferential side of the umbrella skirt of the insulator, at this time, the position of the baffle plate 22 is adjusted, so that the baffle plate 22 is in contact with the outer wall of the umbrella skirt and is fixed with the roller shaft 21 through the fixing bolt 23, and then the coaxiality of the umbrella skirt of the composite insulator can be detected through the roller shaft 21.

[0042] In the application, the transmission mechanism 57 comprises a transmission shaft 42 rotatably installed with the lifting block 40, and the transmission shaft 42 is in intermittent transmission connection with the lead screw 27. It is worth mentioning that the intermittent transmission mechanism comprises a special-shaped wheel 46 and a sector wheel 47 matched with each other, the special-shaped wheel 46 is coaxially installed with the lead screw 27, the sector wheel 47 is coaxially installed with the transmission shaft 42, a plurality of sector grooves 50 and a pushing groove 51 are arranged on the special-shaped wheel 46, the plurality of sector grooves 50 and the pushing groove 51 are arrayed on the circumferential side of the special-shaped wheel 46, the sector grooves 50 and the pushing groove 51 are staggered, the sector wheel 47 is arranged in a large-angle sector, the arc surface of the sector wheel 47 is matched with the sector groove 50, and it is necessary to mention that when the arc surface of the sector wheel 47 rotates to 3 / 4, the fixed rod 3 drives the insulator to rotate one circle, at this time, the roller shaft 21 is lifted under the action of the fine adjustment mechanism 10 and is ready to move to the next umbrella skirt for detection. The pushing plate 48 is fixedly installed outside the sector wheel 47, the pushing rod 49 is installed on the pushing plate 48, the pushing rod 49 is matched with the pushing groove 51, the transmission shaft 42 is coaxially installed with a driven pulley 43, the driving shaft of the rotating motor 4 is coaxially installed with a main pulley 36, the vertical plate 2 is provided with an adjusting hole 31, the adjusting hole 31 is rotatably installed with an adjusting lead screw 32, the adjusting lead screw 32 is externally threaded with an adjusting block 33, the adjusting block 33 is in sliding connection with the inner wall of the adjusting hole 31, the adjusting block 33 is rotatably installed with an adjusting pulley 34, the adjusting pulley 34, the main pulley 36 and the driven pulley 43 are in transmission connection through a synchronous belt, the vertical plate 2 is provided with a transmission hole 37, one end of the lifting screw 30 and the adjusting lead screw 32 is rotatably penetrated through the vertical plate 2 and extends into the transmission hole 37, the part of the adjusting lead screw 32 in the transmission hole 37 is coaxially installed with a first bevel gear 38, the part of the lifting screw 30 in the transmission hole 37 is coaxially installed with a second bevel gear 39, the first bevel gear 38 is in meshing connection with the second bevel gear 39, the transmission shaft 42 is coaxially installed with a first pulley 44, the rotating rod 28 is coaxially installed with a second pulley 45, and the first pulley 44 and the second pulley 45 are in transmission connection through a synchronous belt.

[0043] It should be noted that when the lifting screw 30 rotates, the adjusting screw 32 is driven to rotate through the first bevel gear 38 and the second bevel gear 39, the adjusting screw 32 drives the adjusting block 33 to move, and the adjusting block 33 drives the adjusting pulley 34 to move. When the return plate 6 is raised or lowered, the synchronous belt outside the adjusting pulley 34, the main pulley 36 and the slave pulley 43 are always kept in a tensioned state.

[0044] According to the above technical features: the fixed rod 3 is driven to rotate by the rotating motor 4, and the fixed rod 3 drives the composite insulator to rotate. When the composite insulator rotates, the roller 21 rolls along the circumference of the insulator shed;

[0045] When the axis of the insulator shed is offset and the shed rotates to a position farther from the central axis, the shed squeezing roller 21 moves upward. At the same time, under the action of pressure, the roller 21 deviates to a certain extent along the direction of the shed rotation. At this time, the roller 21 drives the deflection column 15 to deflect through the abutment plate 12, and the deflection column 15 drives the laser sensor 16 to deflect. Since the light path paper remains in a rotating state, the light emitted by the laser sensor 16 will irradiate the light path paper for a longer time. The fluorescence intensity generated at this position is higher than that at other positions, which can be used to determine that the sheds at this position are not aligned with the axis.

[0046] When the axis of the insulator shed rotates a certain amount, the shed deviates axially. When the roller 21 rotates along the shed, it rotates laterally under the pressure of the shed. The roller 21 drives the buffer plate 11 to rotate laterally through the abutment plate 12 and the deflection column 15. The deflection column 15 drives the laser sensor 16 to rotate laterally. At this time, the light path of the laser sensor 16 irradiated on the winding roller 17 will produce a peak, which indicates that the shed is axially offset at this location, and it can be determined that the sheds are not coaxial at this location.

[0047] It should be noted that the main pulley 36 is driven to rotate by rotating the motor 4, the main pulley 36 drives the adjusting pulley 34 and the slave pulley 43 to rotate, the slave pulley 43 drives the transmission shaft 42 to rotate, the slave pulley 43 drives the rotating rod 28 to rotate through the first pulley 44 and the second pulley 45, the rotating rod 28 drives the winding roller 17 to rotate, the winding roller 17 drives the light path paper to rotate, at the same time, the transmission shaft 42 drives the fan-shaped wheel 47 to rotate, the fan-shaped wheel 47 drives the special-shaped wheel 46 to rotate intermittently under the action of the toggle plate 48 and the toggle rod 49, the special-shaped wheel 46 drives the screw rod 27 to rotate intermittently, and the intermittent time is the same, the screw rod 27 drives the movable plate 8 to move, and the movable plate 8 drives the roller shaft 21 to move, so that each umbrella skirt on the composite insulator can be tested for coaxiality, and the detection effect is good.

[0048] Working principle:

[0049] 1) Fixing the composite insulator: The fixing screw 58 is rotated by adjusting the motor 35, and the fixing screw 58 drives the cross block 53 to move. The cross block 53 drives the top plate 54 to move to a suitable position through the electric telescopic rod 55. The electric telescopic rod 55 is then extended and retracted to move the top plate 54, so that the top plate 54 presses against the mounting hole of the composite insulator, thereby fixing the composite insulator.

[0050] 2) Detection of the coaxiality of the composite insulator shed: The lifting screw 30 is driven to rotate by the lifting motor 29, and the lifting screw 30 drives the lifting block 40 to move up and down, and the lifting block 40 drives the return plate 6 to move up and down, and the return plate 6 drives the roller 21 to move up and down until it is in the appropriate position, and then the multiple threaded sleeves 24 are driven to rotate by the fine-tuning motor 59, and the threaded sleeves 24 drive the threaded rod 25 to move up and down, and the threaded rod 25 drives the deflection column 15 to move up and down through the return lifting plate 9 and the buffer plate 11, and the deflection column 15 drives the abutment plate 12 and the roller 21 to move up and down until the roller 21 contacts the peripheral side of the shed of the insulator, at this time, the position of the baffle 22 is adjusted so that the baffle 22 contacts the outer wall of the shed and the baffle 22 is fixed to the roller 21 by the fixing bolt 23, at this time, the main pulley 36 is driven to rotate by the rotating motor 4, and the main pulley 36 drives the adjustment pulley 34 and the slave pulley 43 The drive shaft 42 is driven by the pulley 43 to rotate, and the pulley 43 drives the rotating rod 28 to rotate through the first pulley 44 and the second pulley 45. The rotating rod 28 drives the winding roller 17 to rotate, and the winding roller 17 drives the light path paper to rotate. At the same time, the drive shaft 42 drives the fan wheel 47 to rotate, and the fan wheel 47 drives the special-shaped wheel 46 to rotate intermittently under the action of the toggle plate 48 and the toggle rod 49. The special-shaped wheel 46 drives the screw rod 27 to rotate intermittently, and the intermittent time is the same. The screw rod 27 drives the moving plate 8 to move, and the moving plate 8 drives the roller 21 to move. Before the roller 21 moves, the roller 21 completes the detection of one circle of the umbrella skirt, records the detection light path of the umbrella skirt side on the light path paper, and drives the roller 21 up through the fine-tuning motor 59 to prepare for the detection of the next umbrella skirt. When the roller 21 completes the movement, the fine-tuning motor 59 drives the roller 21 to move down and repeats the detection of the umbrella skirt.

[0051] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0052] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present application should be included in the scope of protection of the present invention.

Claims

1. A composite insulator coaxiality measuring instrument based on laser ranging, characterized by: The invention comprises a bottom plate (1), a vertical plate (2) is mounted on the bottom plate (1), a return plate (6) is slidably mounted on the vertical plate (2), a lifting mechanism (7) for lifting the return plate (6) is provided on the vertical plate (2), a fixing rod (3) is rotatably mounted on the vertical plate (2), a fixing mechanism (5) for fixing the composite insulator is provided on the fixing rod (3), a rotating motor (4) is mounted on the side wall of the vertical plate (2), a driving shaft of the rotating motor (4) rotates through the vertical plate (2) and is fixed to the fixing rod (3), a measuring mechanism (56) for coaxially measuring the composite insulator shed is provided on the return plate (6), and a transmission mechanism (57) is provided on the vertical plate (2); The lifting mechanism (7) includes a lifting hole (41) provided on the vertical plate (2), a lifting screw (30) is rotatably installed in the lifting hole (41), a lifting motor (29) is installed on the upper end of the vertical plate (2), a driving shaft of the lifting motor (29) rotates through the vertical plate (2) and is coaxially installed with the lifting screw (30), the lifting screw (30) is provided with a lifting block (40) on the external thread sleeve, the lifting block (40) is slidably connected to the inner wall of the lifting hole (41), and the return plate (6) is fixed to the lifting block (40).

2. The composite insulator coaxiality measuring instrument based on laser ranging according to claim 1, characterized in that: The fixing mechanism (5) includes a cross hole (52) provided on the fixing rod (3), a fixing screw (58) is rotatably installed in the cross hole (52), a cross block (53) is provided on the external thread sleeve of the fixing screw (58), and the cross block (53) is slidably connected to the cross hole (52), an adjustment motor (35) is installed at one end of the fixing rod (3), a drive shaft of the adjustment motor (35) rotates through the fixing rod (3) and is coaxially installed with the fixing screw (58), a plurality of groups of support members are provided on the circumference of the fixing rod (3), the support members include a top plate (54) and an electric telescopic rod (55), the electric telescopic rod (55) is fixed to the top plate (54), and the plurality of groups of support members are respectively installed on the circumference of the fixing rod (3) and the cross block (53).

3. The composite insulator coaxiality measuring instrument based on laser ranging according to claim 1, characterized in that: The measuring mechanism (56) comprises two movable plates (8) slidably connected to the inner wall of the return plate (6), two winding rollers (17) are rotatably installed between the two movable plates (8), and the same roll of light path paper is wound on the two winding rollers (17), a screw rod (27) and a rotating rod (28) are rotatably installed in the return plate (6), the screw rod (27) is threadedly passed through the two movable plates (8), the rotating rod (28) slides through the two movable plates (8) and one of the winding rollers (17), one end of the screw rod (27) and the rotating rod (28) are both rotatably passed through the return plate (6) and the lifting block (40), a return lifting plate (9) is provided below the two movable plates (8), and a rotating plate (28) is provided on the movable plate (8) for adjusting the return lifting plate ( 9) a fine adjustment mechanism (10) for lifting and lowering, a buffer plate (11) is provided below the circular lifting plate (9), the buffer plate (11) and the circular lifting plate (9) are fixed by a plurality of buffer members (18), a deflection hole (13) is provided on the buffer plate (11), a deflection plate (14) is rotatably installed in the deflection hole (13), a deflection column (15) is fixedly provided through the deflection plate (14), a laser sensor (16) is installed at the upper end of the deflection column (15), a support plate (12) is installed at the lower end of the deflection column (15), a roller shaft (21) is installed at the lower end of the support plate (12), a baffle (22) is provided on the outer shell of the roller shaft (21), and the roller shaft (21) and the baffle (22) are movably installed by fixing bolts (23).

4. The composite insulator coaxiality measuring instrument based on laser ranging according to claim 3, characterized in that: The fine-tuning mechanism (10) comprises a plurality of threaded rods (25) fixedly mounted on the upper end of the return-type lifting plate (9), the threaded rods (25) are externally threaded with a threaded sleeve (24), the upper end of the threaded sleeve (24) is rotatably mounted on the movable plate (8), the upper end of the movable plate (8) is mounted with a fine-tuning motor (59), the driving shaft of the fine-tuning motor (59) rotates through the movable plate (8) and is coaxially mounted with the threaded sleeve (24), and a plurality of the threaded sleeves (24) are coaxially mounted with fine-tuning pulleys (26), and the plurality of the fine-tuning pulleys (26) are connected by a synchronous belt transmission.

5. The composite insulator coaxiality measuring instrument based on laser ranging according to claim 3, characterized in that: The buffer member (18) includes a telescopic rod (19) and a telescopic spring (20), wherein the telescopic spring (20) is sleeved outside the telescopic rod (19), and the upper and lower ends of the telescopic rod (19) and the telescopic spring (20) are fixedly mounted on the return lifting plate (9) and the buffer plate (11), respectively.

6. The composite insulator coaxiality measuring instrument based on laser ranging according to claim 3, characterized in that: The transmission mechanism (57) includes a transmission shaft (42) rotatably mounted on the lifting block (40), the transmission shaft (42) and the screw rod (27) are connected to each other through an intermittent mechanism, a slave pulley (43) is coaxially mounted on the outside of the transmission shaft (42), a main pulley (36) is coaxially mounted on the driving shaft of the rotating motor (4), an adjustment hole (31) is provided on the vertical plate (2), an adjustment screw rod (32) is rotatably mounted in the adjustment hole (31), an adjustment block (33) is provided on the external thread sleeve of the adjustment screw rod (32), the adjustment block (33) is slidably connected to the inner wall of the adjustment hole (31), an adjustment pulley (34) is rotatably mounted on the adjustment block (33), and the adjustment pulley (34), the main pulley (36) and the slave pulley (43) are connected to each other. The vertical plate (2) is connected by a synchronous belt transmission. A transmission hole (37) is provided on the vertical plate (2). One end of the lifting screw (30) and the adjusting screw (32) rotates through the vertical plate (2) and extends into the transmission hole (37). The portion of the adjusting screw (32) located in the transmission hole (37) is coaxially mounted with a first bevel gear (38). The portion of the lifting screw (30) located in the transmission hole (37) is coaxially mounted with a second bevel gear (39). The first bevel gear (38) is meshed with the second bevel gear (39). A first pulley (44) is coaxially mounted on the outside of the transmission shaft (42). A second pulley (45) is coaxially mounted on the outside of the rotating rod (28). The first pulley (44) and the second pulley (45) are connected by a synchronous belt transmission.

7. The composite insulator coaxiality measuring instrument based on laser ranging according to claim 6, characterized in that: The intermittent mechanism comprises a special-shaped wheel (46) and a sector wheel (47) that match each other, wherein the special-shaped wheel (46) is coaxially mounted with the screw rod (27), and the sector wheel (47) is coaxially mounted with the transmission shaft (42). The special-shaped wheel (46) is provided with a plurality of sector grooves (50) and toggle grooves (51), and the plurality of sector grooves (50) and toggle grooves (51) are arrayed and distributed around the circumference of the special-shaped wheel (46). The sector grooves (50) and the toggle grooves (51) are staggered. The sector wheel (47) is arranged in a large-angle sector shape, and the arc surface of the sector wheel (47) matches the sector grooves (50). A toggle plate (48) is fixedly mounted on the outside of the sector wheel (47), and a toggle rod (49) is mounted on the toggle plate (48), and the toggle rod (49) matches the toggle groove (51).

8. The composite insulator coaxiality measuring instrument based on laser ranging according to claim 3, characterized in that: The surface of the light path paper is coated with fluorescent powder.

9. The composite insulator coaxiality measuring instrument based on laser ranging according to claim 3, characterized in that: The deflection plate (14) is rotatably mounted on the inner wall of the deflection hole (13) via a volute spring.

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