CN111941716B - Cross arm fixing and rotating device for composite insulation cross arm core body manufacturing equipment - Google Patents
Cross arm fixing and rotating device for composite insulation cross arm core body manufacturing equipment Download PDFInfo
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- CN111941716B CN111941716B CN202010882353.4A CN202010882353A CN111941716B CN 111941716 B CN111941716 B CN 111941716B CN 202010882353 A CN202010882353 A CN 202010882353A CN 111941716 B CN111941716 B CN 111941716B
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- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000009413 insulation Methods 0.000 title claims description 9
- 210000000078 claw Anatomy 0.000 claims abstract description 91
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000005452 bending Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 9
- 239000006260 foam Substances 0.000 description 8
- 239000004005 microsphere Substances 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000011325 microbead Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a cross arm fixing and rotating device for composite insulating cross arm core body manufacturing equipment, and belongs to the technical field of composite insulating cross arm core body manufacturing equipment. The device comprises a cross arm rotation driving structure and a cross arm axial positioning structure; the cross arm rotation driving structure comprises a cross arm rotation driving structure fixing frame, a rotation driving motor and a first cross arm end part quick fixing structure; the first cross arm end part quick fixing structure comprises a fixed claw connecting frame, a female lifting screw rod, a bent claw tightness adjusting nut, a transverse fixed claw tightness mechanism and a longitudinal fixed claw tightness mechanism; the cross arm axial positioning structure comprises a linear guide rail and a second cross arm end part quick fixing structure; the quick fixing structure at the end part of the second cross arm is fixed on the sliding block through a bearing; the quick fixed knot of second cross arm tip constructs and corresponds the setting with the quick fixed knot of first cross arm tip constructs. The cross arm inner core has the advantages of improved mechanical property, electrical property and corrosion resistance, convenient operation, high production efficiency and the like.
Description
Technical Field
The invention relates to the technical field of composite insulating cross arm core body manufacturing equipment.
Background
The composite insulating cross arm is made of a novel material, has the advantages of small volume, light weight, high mechanical strength, excellent electrical performance, corrosion resistance, ageing resistance and the like compared with a steel cross arm, and gradually replaces the steel cross arm. Especially, the inner core filling type composite insulating cross arm is lighter in weight relative to a solid core rod cross arm, and is more convenient to install and maintain. The inner filling type composite insulating cross arm mainly comprises an inner insulating material and an outer insulating material. However, rigid polyurethane foam is mostly used as the internal insulation material of the composite insulation cross arm in the market.
The polyurethane inner core adopts polyurethane foam as an inner filling type insulating material, and is completed by utilizing a foam preparation process of a polyurethane foaming agent and matching with a polyurethane foaming agent preparation device. The phenomena of incomplete reaction, low pore closing rate of the pore bubbles, uneven pore diameter and the like easily occur in the process production process, and the problems of overlarge water absorption rate, untight interface bonding with an external insulating material and the like easily cause accidents such as breakdown of the composite insulating cross arm and the like. The service life of the composite insulating cross arm should be not less than 30 years, so the internal insulating material needs to maintain excellent electrical performance for a long time. It can be seen that the performance of the filling material has become a bottleneck problem which restricts the development and application of the composite insulating cross arm.
Syntactic foams are a low density, multifunctional hybrid insulation consisting of a polymer matrix and Hollow Polymer Microbeads (HPMs). The composite foam with the epoxy resin matrix added with the organic microspheres is used as a filling material in the composite cross arm, so that the advantages of corrosion resistance, ageing resistance, reduction of line maintenance cost, reduction of transportation and assembly cost, improvement of insulation level of a distribution line and the like can be guaranteed, and the limitation of the composite insulation cross arm with the polyurethane inner core can be effectively avoided.
The composite foam material consists of epoxy resin and organic micro beads, and the organic micro beads are light filling aggregate and heat insulating material with very stable physical and chemical properties, strong aging resistance and weather resistance, excellent heat insulation, fire prevention and sound absorption properties. However, the true density of the organic microspheres is extremely low (0.02-0.1g/cm3), the density of the resin matrix is about 1.2g/cm3, and the microspheres can float upwards if the traditional constant-temperature static curing process is adopted, so that the distribution of the microspheres is extremely uneven, and even obvious layering phenomenon occurs. Namely, the interior of the filling material has a vertical differentiation phenomenon, different material components appear at different heights, and the organic microspheres are suspended on the upper part all the time, so that the whole material has upper and lower layers in the vertical direction. The result can seriously affect the mechanical property, the electrical property, the corrosion resistance and the like of the internal filling material, greatly reduce the performance of the novel composite insulating cross arm and limit the development, the application and the popularization of the novel composite insulating cross arm.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a cross arm fixing and rotating device for composite insulating cross arm core body manufacturing equipment, which changes the gravity direction continuously through rotation, so that epoxy resin and organic microspheres are uniformly cured together, the mechanical property, the electrical property and the corrosion resistance of the cross arm core body are improved, and the cross arm fixing and rotating device has the advantages of convenience in operation, high production efficiency and the like.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a cross arm fixing and rotating device for composite insulation cross arm core body manufacturing equipment comprises a cross arm rotation driving structure and a cross arm axial positioning structure;
the cross arm rotation driving structure comprises a cross arm rotation driving structure fixing frame, a rotation driving motor and a first cross arm end part quick fixing structure; the first cross arm end part quick fixing structure comprises a fixed claw connecting frame, a female lifting screw rod, a male lifting screw rod, a bent claw tightness adjusting nut, a transverse fixed claw tightening mechanism and a longitudinal fixed claw tightening mechanism; the sub lifting screw rod is screwed with the mother lifting screw rod through a threaded through hole arranged at the axis of the mother lifting screw rod 7; the upper end of the fixed claw connecting frame is provided with a female lifting screw rod sliding hole, the upper end of the female lifting screw rod penetrates through the female lifting screw rod sliding hole, and a bent claw tightness adjusting nut is screwed at the position of the female lifting screw rod above the female lifting screw rod sliding hole; a horizontal stationary dog straining device and a vertical stationary dog straining device structure are the same: the lifting device comprises a horizontal lifting arm, a pair of vertical connecting rods and a pair of bent claws, wherein the upper ends of the two vertical connecting rods are respectively hinged with two ends of the horizontal lifting arm, the lower ends of the two vertical connecting rods are respectively hinged with the upper ends of the two bent claws, outward bent parts positioned in the middle parts of the two bent claws are respectively hinged with a fixed claw connecting frame, and the inner sides of the lower parts of the two bent claws are contact sides of the end parts of cross arms; the lower ends of the main lifting screw rod and the sub lifting screw rod are respectively rotatably connected with the middle parts of horizontal lifting arms of the transverse fixed claw tightening mechanism and the longitudinal fixed claw tightening mechanism, and the transverse fixed claw tightening mechanism and the longitudinal fixed claw tightening mechanism are mutually vertically arranged, so that the contact sides of the end parts of cross arms of the four bent claws form a circumferentially arranged central symmetrical structure;
when the female lifting screw rod and the sub lifting screw rod are respectively screwed tightly, the female lifting screw rod and the sub lifting screw rod respectively move upwards to drive the respective connected horizontal lifting arms to correspondingly move upwards, the two horizontal lifting arms drive the upper ends of the respective bent claws to correspondingly move upwards respectively through the two pairs of vertical connecting rods, so that the two pairs of bent claws rotate by taking the hinged parts in the respective middle parts as pivots, the cross arm end parts of the two pairs of bent claws contact with the lateral axes to respectively correspondingly displace, and the cross arm end parts with square or circular sections and different specifications are fastened;
when the nut is tightened to adjust the tightness of the bent claws, the female lifting screw rod and the male lifting screw rod synchronously move upwards to drive the respective connected horizontal lifting arms to synchronously move upwards, the two horizontal lifting arms drive the upper ends of the two pairs of bent claws to synchronously move upwards through the two pairs of vertical connecting rods, so that the two pairs of bent claws rotate by taking the hinged parts in the middle parts of the two pairs of bent claws as pivots, the end parts of the cross arms of the two pairs of bent claws contact with the lateral axis to synchronously displace, so as to fasten the end parts of the cross arms with the same specification as that fastened last time, and further improve the working efficiency;
the cross arm axial positioning structure comprises a linear guide rail and a second cross arm end part quick fixing structure; the linear guide rail is fixed on the inner wall of the box body of the temperature control box, the second cross arm end part quick fixing structure is the same as the first cross arm end part quick fixing structure in structure, the second cross arm end part quick fixing structure is fixed on the sliding block through a bearing, so that the cross arm arranged on the cross arm fixing and rotating device rotates along with the rotation of the rotary driving motor in the cross arm rotary driving structure, and the sliding block is connected with the linear guide rail in a sliding manner;
the quick fixed knot of second cross arm tip constructs and the corresponding setting of quick fixed knot of first cross arm tip constructs to be used for the both ends of fixed cross arm respectively, linear guide's axial lead is parallel with the axial lead of the cross arm fixed, with the cross arm of the different length of slip adaptation for linear guide through the quick fixed knot of second cross arm tip constructs.
The invention further improves that:
the fixed claw connecting frame comprises a horizontally arranged cross-shaped batten, and vertical battens are respectively downwards arranged at four end parts of the cross-shaped batten; the female lifting screw rod sliding hole is arranged in the middle of the cross-shaped strip plate, and the outward bending parts in the middle of the four bending claws are respectively hinged with the lower end parts of the four vertical strip plates.
The four cross arm end contact sides are all provided with silica gel pads to avoid scratching the cross arm end contact surfaces.
The two linear guide rails are arranged in parallel, and two ends of the cross arm rotation driving structure fixing frame 3 are respectively fixed at the left ends of the two linear guide rails; the number of the cross arm fixing and rotating devices is two; the two ends of the slide block 15 are respectively connected with the right end parts of the two linear guide rails in a sliding manner.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the quick fixing structure for the end part of the first cross arm of the cross arm rotation driving structure and the quick fixing structure for the end part of the second cross arm of the cross arm axial positioning structure are used for fixing two ends of cross arms with different specifications respectively, and the quick fixing structure for the end part of the second cross arm is suitable for cross arms with different lengths relative to the linear guide rail in a sliding manner; the cross arm is controlled to rotate by the rotary driving motor, the gravity direction is continuously changed, the problem that the composite foam light filler in the cavity of the inner core of the cross arm floats upwards is solved, the epoxy resin and the organic microspheres are uniformly cured together, and the mechanical property, the electrical property and the corrosion resistance of the inner core of the cross arm are improved.
The quick cross arm end fixing structure enables the cross arm ends of the two pairs of bent claws to contact the lateral axis to respectively and correspondingly displace by respectively screwing the female lifting screw rod and the male lifting screw rod so as to fasten the cross arm ends with square or round sections and different specifications; when the nut is adjusted by screwing the bent claws, the female lifting screw rod and the male lifting screw rod synchronously move upwards to enable the end parts of the cross arms of the two pairs of bent claws to contact with the lateral axis to synchronously displace so as to fasten the end parts of the cross arms with the same specification fastened last time, and the nut is a special tool designed for fixing the end parts of the cross arms, is convenient and quick to operate and improves the working efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a composite insulated crossarm core manufacturing apparatus;
FIG. 2 is a schematic structural view of the cross arm fixing and rotating device in FIG. 1;
FIG. 3 is a schematic structural view of the quick fastening structure of the shoulder end of FIG. 2;
FIG. 4 is a schematic view of the lateral pawl release mechanism of FIG. 3;
FIG. 5 is a schematic view of the longitudinal pawl release mechanism of FIG. 3;
fig. 6 is a top view of fig. 3.
In the drawings: 1. a temperature control box; 2. a cross arm; 3. the cross arm rotationally drives the structure fixing frame; 4. a rotary drive motor; 5. the end part of the first cross arm is provided with a quick fixing structure; 6. a fixed jaw connecting frame; 6-1. cross lath; 6-2, vertical laths; 7. a female lifting screw rod; 8. a sub-lifting screw rod; 9. the bent claw is used for loosening and tightening the adjusting nut; 10. a horizontal lifting arm; 11. a vertical connecting rod; 12. bending a claw; 13. a linear guide rail; 14. the end part of the second cross arm is provided with a quick fixing structure; 15. a slide block.
Detailed Description
The invention will be described in further detail below with reference to the figures and specific examples.
For convenience of explanation, the composite insulated cross arm core manufacturing apparatus will be described in detail as an example.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
As shown in fig. 1 to 6, the present embodiment includes a temperature control box 1 and at least one cross arm fixing and rotating device disposed in the temperature control box 1;
the temperature control box 1 is used for controlling the temperature in the box body of the temperature control box 1, so that the environmental temperature of the cross arm 2 arranged on the cross arm fixing and rotating device meets the technological requirement of the composite foam raw material in the inner core cavity of the cross arm on the temperature in the solidification process;
the cross arm fixing and rotating device comprises a cross arm rotating and driving structure and a cross arm axial positioning structure;
the cross arm rotation driving structure comprises a cross arm rotation driving structure fixing frame 3, a rotation driving motor 4 and a first cross arm end part quick fixing structure 5; a cross arm rotation driving structure fixing frame 3 is fixed on the inner wall of a box body of the temperature control box 1, a rotation driving motor 4 is fixed on the cross arm rotation driving structure fixing frame 3, and a first cross arm end part quick fixing structure 5 comprises a fixed claw connecting frame 6, a female lifting screw rod 7, a female lifting screw rod 8, a bent claw tightness adjusting nut 9, a transverse fixed claw tightness mechanism and a longitudinal fixed claw tightness mechanism; the sub lifting screw rod 8 is screwed with the female lifting screw rod 7 through a threaded through hole arranged at the axis of the female lifting screw rod 7; a female lifting screw rod sliding hole is formed in the upper end of the fixed claw connecting frame 6, the upper end of the female lifting screw rod 7 penetrates through the female lifting screw rod sliding hole, and a bent claw tightness adjusting nut 9 is screwed on the position of the female lifting screw rod 7 above the female lifting screw rod sliding hole; a horizontal stationary dog straining device and a vertical stationary dog straining device structure are the same: the lifting device comprises a horizontal lifting arm 10, a pair of vertical connecting rods 11 and a pair of bent claws 12, wherein the upper ends of the two vertical connecting rods 11 are respectively hinged with the two ends of the horizontal lifting arm 10, the lower ends of the two vertical connecting rods 11 are respectively hinged with the upper ends of the two bent claws 12, outward bending parts positioned in the middle parts of the two bent claws 12 are respectively hinged with a fixed claw connecting frame 6, and the inner sides of the lower parts of the two bent claws 12 are contact sides of the end parts of cross arms; the lower ends of the main lifting screw rod 7 and the sub lifting screw rod 8 are respectively rotatably connected with the middle parts of horizontal lifting arms 10 of the transverse fixed jaw loosening mechanism and the longitudinal fixed jaw loosening mechanism, and the transverse fixed jaw loosening mechanism and the longitudinal fixed jaw loosening mechanism are mutually vertically arranged, so that the contact sides of the end parts of cross arms of the four bent jaws 12 are of a circumferentially arranged centrosymmetric structure;
when the female lifting screw rod 7 and the sub lifting screw rod 8 are respectively screwed tightly, the female lifting screw rod 7 and the sub lifting screw rod 8 respectively move upwards to drive the respective connected horizontal lifting arms 10 to correspondingly move upwards, the two horizontal lifting arms 10 drive the upper ends of the respective bent claws 12 to respectively correspondingly move upwards through the two pairs of vertical connecting rods 11, so that the two pairs of bent claws 12 rotate by taking the hinged parts at the respective middle parts as pivots, the cross arm end parts of the two pairs of bent claws 12 contact with the lateral axis to respectively correspondingly move, and the cross arm end parts with square or round sections and different specifications are fastened;
when the nut 9 for adjusting the tightness of the bent claws is screwed, the female lifting screw rod 7 and the sub lifting screw rod 8 synchronously move upwards to drive the horizontal lifting arms 10 which are respectively connected to the female lifting screw rod and the sub lifting screw rod to synchronously move upwards, the two horizontal lifting arms 10 drive the upper ends of the two pairs of bent claws 12 to synchronously move upwards through the two pairs of vertical connecting rods 11, so that the two pairs of bent claws 12 rotate by taking the hinged parts at the middle parts of the two pairs of bent claws as pivots, the end parts of the cross arms of the two pairs of bent claws 12 contact with the lateral axle centers to synchronously move so as to fasten the end parts of the cross arms with the same specification fastened last time, and further improve the working efficiency;
the cross arm axial positioning structure comprises a linear guide rail 13 and a second cross arm end part quick fixing structure 14; the linear guide rail 13 is fixed on the inner wall of the box body of the temperature control box 1, the second cross arm end part quick fixing structure 14 has the same structure as the first cross arm end part quick fixing structure 5, the second cross arm end part quick fixing structure 14 is fixed on a sliding block 15 through a bearing, so that a cross arm 2 arranged on a cross arm fixing and rotating device rotates along with the rotation of a rotary driving motor 4 in a cross arm rotary driving structure, and the sliding block 15 is in sliding connection with the linear guide rail 13;
the second cross arm end part quick fixing structure 14 is arranged corresponding to the first cross arm end part quick fixing structure 5 and used for fixing two end parts of the cross arm 2 respectively, and the axial lead of the linear guide rail 13 is parallel to the axial lead of the fixed cross arm 2 so as to adapt to the cross arms 2 with different lengths through the sliding of the second cross arm end part quick fixing structure 14 relative to the linear guide rail 13.
The fixed claw connecting frame 6 comprises a horizontally arranged cross-shaped lath 6-1, and vertical laths 6-2 are respectively arranged at the four end parts of the cross-shaped lath 6-1 downwards; the female lifting screw rod sliding matching hole is arranged in the middle of the cross-shaped strip plate 6-1, and the outward bending parts in the middle of the four bent claws 12 are respectively hinged with the lower end parts of the four vertical strip plates 6-2.
The four cross arm end contact sides are all provided with silica gel pads to avoid scratching the cross arm end contact surfaces.
Two linear guide rails 13 are arranged in parallel, and two ends of the cross arm rotation driving structure fixing frame 3 are respectively fixed at the left end cross arm fixing and rotating devices of the two linear guide rails 13; the two ends of the slide block 15 are respectively connected with the right end parts of the two linear guide rails 13 in a sliding way.
The using method comprises the following steps:
the two end parts of the cross arm are respectively fixed on a first cross arm end part quick fixing structure of the cross arm rotation driving structure and a second cross arm end part quick fixing structure of the cross arm axial positioning structure through cross arm fixing and rotating devices. Aiming at cross arm end parts with different specifications (the cross arm end parts have square or round sections and different specifications and different cross section sizes), respectively adjusting and screwing a female lifting screw rod 7 and a male lifting screw rod 8 so as to respectively adjust the distance between two pairs of bent claws, so that the contact sides of the cross arm end parts of two pairs of bent claws 12 clamp and fix the cross arm end parts; after the cross arm is fixed, injecting a composite foam raw material into the inner core cavity of the cross arm, and turning on a control switch of a rotary driving motor 4 to enable a quick fixing structure 5 at the end part of the first cross arm to drive the cross arm to start to rotate at a constant speed, wherein the rotating speed can be freely adjusted between 1 and 10 revolutions per minute. After the operation is finished, the curing temperature is adjusted through the temperature control box 1, the temperature control range is 0-120 ℃, and the curing requirements of all filling materials applied to the composite insulating cross arm are met. Taking the composite foam of the organic silicon modified resin (HD 01)/the organic microspheres as an example, when the formula is adopted, the rotating speed of the cross arm is 3 r/min, and the influence of centrifugal force on the material can be avoided under the condition that the filler is prevented from floating upwards. The curing temperature is 80 ℃, so that the curing time can be shortened, and the phenomenon of implosion of the composite foam can be avoided. After the cross arm core body is cured, the power supply of the rotary driving motor 4 and the temperature control box 1 is closed, two pairs of bent claws 12 of the first cross arm end part quick fixing structure and two pairs of bent claws 12 of the second cross arm end part quick fixing structure of the cross arm axial positioning structure are loosened from the two end parts of the cross arm by loosening the bent claw tightness adjusting nuts 9, the cross arm is taken out, and the manufacture of the composite insulating cross arm core body is completed; when the core body of the cross arm with the same specification is manufactured again, the end parts of the cross arm can be fixed conveniently and quickly by only screwing the bent claw tightness adjusting nut 9, enabling the female lifting screw rod 7 and the male lifting screw rod 8 to move upwards synchronously, enabling the end parts of the cross arm of the two pairs of bent claws 12 to contact with the lateral axis to displace synchronously and automatically adjusting to the position for fixing the end parts of the cross arm last time.
Claims (4)
1. The utility model provides a fixed rotary device of cross arm for compound insulation cross arm core preparation equipment which characterized in that: the device comprises a cross arm rotation driving structure and a cross arm axial positioning structure;
the cross arm rotation driving structure comprises a cross arm rotation driving structure fixing frame (3), a rotation driving motor (4) and a first cross arm end part quick fixing structure (5); the cross arm rotation driving structure fixing frame (3) is fixed on the inner wall of a box body of the temperature control box (1), the rotation driving motor (4) is fixed on the cross arm rotation driving structure fixing frame (3), and the first cross arm end portion quick fixing structure (5) comprises a fixing claw connecting frame (6), a female lifting screw rod (7), a sub lifting screw rod (8), a bent claw tightness adjusting nut (9), a transverse fixing claw tightness mechanism and a longitudinal fixing claw tightness mechanism; the sub lifting screw rod (8) is screwed with the female lifting screw rod (7) through a threaded through hole arranged at the axis of the female lifting screw rod (7); a female lifting screw rod sliding hole is formed in the upper end of the fixed claw connecting frame (6), the upper end of the female lifting screw rod (7) penetrates through the female lifting screw rod sliding hole, and the bent claw tightness adjusting nut (9) is screwed on the position of the female lifting screw rod (7) above the female lifting screw rod sliding hole; the structure of the transverse fixed claw tightening mechanism is the same as that of the longitudinal fixed claw tightening mechanism: the lifting device comprises a horizontal lifting arm (10), a pair of vertical connecting rods (11) and a pair of bent claws (12), wherein the upper ends of the two vertical connecting rods (11) are respectively hinged with the two ends of the horizontal lifting arm (10), the lower ends of the two vertical connecting rods (11) are respectively hinged with the upper ends of the two bent claws (12), outward bending parts positioned in the middle parts of the two bent claws (12) are respectively hinged with a fixed claw connecting frame (6), and the inner sides of the lower parts of the two bent claws (12) are contact sides of the end parts of cross arms; the lower ends of the main lifting screw rod (7) and the sub lifting screw rod (8) are respectively and rotatably connected with the middle parts of the horizontal lifting arms (10) of the transverse fixed claw tightening mechanism and the longitudinal fixed claw tightening mechanism, and the transverse fixed claw tightening mechanism and the longitudinal fixed claw tightening mechanism are mutually and vertically arranged, so that the contact sides of the end parts of the cross arms of the four bent claws (12) are of a circumferentially arranged central symmetrical structure;
when the female lifting screw rod (7) and the sub lifting screw rod (8) are respectively screwed, the female lifting screw rod (7) and the sub lifting screw rod (8) respectively move upwards to drive the horizontal lifting arms (10) which are respectively connected to correspondingly move upwards, the two horizontal lifting arms (10) drive the upper ends of the bent claws (12) to respectively and correspondingly move upwards through the two pairs of vertical connecting rods (11), so that the two pairs of bent claws (12) rotate by taking the hinged parts at the middle parts of the bent claws as pivots, the cross arm end parts of the two pairs of bent claws (12) are contacted with the lateral axle centers to respectively and correspondingly displace, and the cross arm end parts with square or circular sections and different specifications are fastened;
when the bent claw tightness adjusting nut (9) is screwed, the female lifting screw rod (7) and the sub lifting screw rod (8) synchronously move upwards to drive the horizontal lifting arms (10) which are respectively connected to synchronously move upwards, the two horizontal lifting arms (10) drive the upper ends of the two pairs of bent claws (12) to synchronously move upwards through the two pairs of vertical connecting rods (11), so that the two pairs of bent claws (12) rotate by taking the hinged parts of the respective middle parts as pivots, and the cross arm end parts of the two pairs of bent claws (12) contact with the lateral axis to synchronously displace so as to fasten the cross arm end parts with the same specification as that fastened last time;
the cross arm axial positioning structure comprises a linear guide rail (13) and a second cross arm end part quick fixing structure (14); the linear guide rail (13) is fixed on the inner wall of the box body of the temperature control box (1), the second cross arm end part quick fixing structure (14) has the same structure as the first cross arm end part quick fixing structure (5), the second cross arm end part quick fixing structure (14) is fixed on a sliding block (15) through a bearing, so that a cross arm (2) installed on the cross arm fixing and rotating device rotates along with the rotation of a rotary driving motor (4) in the cross arm rotary driving structure, and the sliding block (15) is connected with the linear guide rail (13) in a sliding manner;
the second cross arm end part quick fixing structure (14) and the first cross arm end part quick fixing structure (5) are correspondingly arranged and used for fixing two end parts of a cross arm (2) respectively, and the axial lead of the linear guide rail (13) is parallel to the axial lead of the fixed cross arm (2) so as to adapt to the cross arms (2) with different lengths through the sliding of the second cross arm end part quick fixing structure (14) relative to the linear guide rail (13).
2. The cross arm fixing and rotating device for the composite insulating cross arm core body manufacturing equipment according to claim 1, wherein: the fixed claw connecting frame (6) comprises a horizontally arranged cross-shaped batten (6-1), and vertical battens (6-2) are respectively arranged at four end parts of the cross-shaped batten (6-1) downwards; the female lifting screw rod sliding hole is formed in the middle of the cross-shaped strip plate (6-1), and the outward bending parts in the middle of the four bent claws (12) are hinged to the lower end parts of the four vertical strip plates (6-2) respectively.
3. The cross arm fixing and rotating device for the composite insulating cross arm core body manufacturing equipment according to claim 1 or 2, wherein: four cross arm tip contact side all is equipped with the silica gel pad to avoid causing the scratch to cross arm tip contact surface.
4. The cross arm fixing and rotating device for the composite insulating cross arm core body manufacturing equipment according to claim 1, wherein: the two linear guide rails (13) are arranged in parallel, and two ends of the cross arm rotary driving structure fixing frame (3) are respectively fixed at the left ends of the two linear guide rails (13); the number of the cross arm fixing and rotating devices is two; and two ends of the sliding block (15) are respectively in sliding connection with the right end parts of the two linear guide rails (13).
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