CN116459987A - Rubber reinforced insulation inner surface ultraviolet irradiation modification device for prefabricated cable accessory - Google Patents
Rubber reinforced insulation inner surface ultraviolet irradiation modification device for prefabricated cable accessory Download PDFInfo
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- CN116459987A CN116459987A CN202310727538.1A CN202310727538A CN116459987A CN 116459987 A CN116459987 A CN 116459987A CN 202310727538 A CN202310727538 A CN 202310727538A CN 116459987 A CN116459987 A CN 116459987A
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- cable accessory
- stress control
- control body
- modification
- ultraviolet
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- 238000012986 modification Methods 0.000 title claims abstract description 62
- 229920001971 elastomer Polymers 0.000 title claims abstract description 33
- 238000009413 insulation Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 238000005507 spraying Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims description 42
- 239000007921 spray Substances 0.000 claims description 33
- 239000002904 solvent Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- 238000002715 modification method Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000011324 bead Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
- B05B13/0645—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/104—Pretreatment of other substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
- B05D7/225—Coating inside the pipe
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention provides a prefabricated cable accessory rubber reinforced insulation inner surface ultraviolet irradiation modification device, and belongs to the technical field of cable accessory modification. The method solves the realization problem of grafting modification on the reinforced insulating inner surface of the prefabricated cable accessory. The ultraviolet grafting device comprises a rotary power device, a coaxial variable-diameter fixing device, an ultraviolet grafting modification generation device and a reciprocating transmission device, wherein the rotary power device drives the coaxial variable-diameter fixing device to realize that a stress control body rotates around the horizontal central axis of the stress control body, a cable accessory stress control body is fixed in the coaxial variable-diameter fixing device, the ultraviolet grafting generation device comprises a modification liquid spraying device and an ultraviolet lamp, the modification liquid spraying device and the ultraviolet lamp can extend into the cable accessory stress control body, the ultraviolet lamp and the modification liquid spraying device are arranged at the front end of a support, and the reciprocating transmission device drives the support to move. The invention can realize uniform modification effect to ensure the consistency of insulating property.
Description
Technical Field
The invention belongs to the technical field of cable accessory modification, and particularly relates to a prefabricated cable accessory rubber reinforced insulation inner surface ultraviolet irradiation modification device.
Background
In the practical application of the power cable, the power cables are connected with each other through cable accessories, and the cable accessories are usually the weakest in the whole cable line, so that the cable accessories are also important links for guaranteeing the stable operation of the cable system. The cable accessories can be divided into three types of wrapping type, molding type and prefabricated type according to the manufacturing process. The wrapping type and the molding type cable accessories generally cannot avoid the problems of impurity introduction, insufficient precision and the like caused by temporarily assembling the cable at a construction site, so that the application voltage level of the two types of cable accessories is often lower, and the installation period is also longer. On the one hand, the installation process of the prefabricated cable accessory is time-saving and labor-saving, the possibility of installation errors is greatly reduced, and the implementation process is simpler; on the other hand, the semiconductive stress cone structure of the prefabricated cable accessory has a more stable performance in weakening the electric field distortion problem at the break of the outer shielding layer. For high voltage cable systems, therefore, the cabling is in most cases carried out using prefabricated cable accessories produced in a relatively clean shop environment.
The prefabricated cable accessory comprises a prefabricated cable connector and a prefabricated cable terminal, the most central part of the whole cable accessory is provided with a stress cone and enhanced insulation, the stress cone and the enhanced insulation are made of silicon rubber or ethylene propylene rubber materials and are of an integral structure, so that the two parts are commonly called as stress control bodies in some enterprises, and the stress control bodies are used for improving electric field distortion phenomena in the cable accessory and bearing the largest distortion electric field in the accessory. The stress control body is therefore critical in determining the voltage class and operational stability of the cable accessory.
After the installation of the cable accessory is completed, the stress control body is tightly sleeved on the body insulation of the cable in an interference fit mode, and the inner surface of the stress control body is directly and tightly contacted with the power cable body insulation (crosslinked polyethylene insulation) to complete insulation fit. In the installation process of the stress control body, lubrication and improvement of electrical resistance are realized by smearing silicone grease between the insulation of the cable body and the inner surface of the cable accessory. However, the problem faced at present is that silicone grease causes swelling of rubber materials under long-term working conditions, thereby negatively affecting the mechanical properties of rubber and the electrical resistance of insulating interfaces.
In order to improve the interface electrical resistance of the inner surface of the stress control body of the cable accessory, the prior art China patent CN202010467340.0 discloses a method for improving the interface voltage resistance of the rubber stress control body of the prefabricated cable accessory, which is a modification method for the surface of a rubber material, namely, the inner surface of the rubber reinforced insulation of the stress control body of the cable accessory is subjected to grafting modification, and the method mainly comprises the following steps: 1. preparing an organic modified solution according to a formula; 2. spraying the organic modification solution on the inner surface of the stress control body of the prefabricated cable accessory; 3. heating to enable the organic modification solution to be absorbed by the surface of the rubber stress control body of the prefabricated cable accessory; 4. the organic modifying compound is grafted onto the macromolecules on the inner surface of the rubber by chemical reaction. However, the prior art has the following defects: the cable accessory stress control body is of a cylindrical structure, the inner diameter of the cable accessory stress control body is smaller, and therefore the inner wall of the cable accessory stress control body is non-open, so that the operation space is extremely limited, under the condition, the prior art or equipment cannot realize uniform modification of the inner wall of the stress control body, and no special equipment and method for realizing uniform grafting modification of the inner wall of the stress control body exist at present.
Disclosure of Invention
In view of the above, the invention aims to solve the problem of realizing grafting modification on the inner surface of the reinforced insulation of the prefabricated cable accessory, and provides an ultraviolet irradiation modification device for the rubber reinforced insulation inner surface of the prefabricated cable accessory, which is used for chemically grafting modification on the inner surface of the reinforced insulation of the prefabricated cable accessory.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a prefabricated cable accessory rubber reinforcing insulation internal surface ultraviolet irradiation modification device, includes rotary power device, coaxial variable diameter fixing device, ultraviolet light grafting modification generating device and reciprocal transmission device, rotary power device drives coaxial variable diameter fixing device and realizes that cable accessory stress control body is rotatory around cable accessory stress control body horizontal central axis, and cable accessory stress control body is fixed in coaxial variable diameter fixing device, ultraviolet light grafting modification generating device includes modified liquid spraying device and ultraviolet lamp, and the shower nozzle and the ultraviolet lamp of modified liquid spraying device can stretch into in the cable accessory stress control body, ultraviolet lamp and modified liquid spraying device arrange at the support front end, reciprocal transmission device drive support motion.
Still further, the rotary power device comprises a motor, a transmission device and a transmission shaft, wherein the motor drives the coaxial variable-diameter fixing device through the transmission device and the transmission shaft to realize the rotation of the cable accessory stress control body around the horizontal central axis of the cable accessory stress control body.
Still further, the coaxial variable diameter fixing device comprises a clamp base and a clamp, wherein the clamp base is fixedly connected with the transmission shaft, and the clamp is arranged on the clamp base.
Still further, the modified liquid spraying device comprises a bracket, a spray head, a plurality of guide pipes, a liquid pump, modified liquid and cleaning solvent, wherein the spray head is arranged at the front end of the bracket, two guide pipes are arranged inside the bracket, the modified liquid and the cleaning solvent are arranged in a container at the rear end of the bracket, the top end of the container is provided with the liquid pump, the liquid pump is connected with the spray head at the front end of the bracket through the guide pipes, and the liquid pump provides power for grafting work of spraying the modified liquid and cleaning work of spraying the cleaning solvent.
Furthermore, the reciprocating transmission device comprises a support base and an electric sliding rail, the support is fixed on the electric sliding rail through the support base, and the electric sliding rail acts to drive a spray head and an ultraviolet lamp at the front end of the support to move along the axis of the cable accessory stress control body.
Still further, the anchor clamps base includes a plurality of linkage connecting rods, a plurality of rotary joint and anchor clamps slide, anchor clamps can slide or fix on the anchor clamps slide, anchor clamps slide both sides are connected with linkage connecting rod and rotary joint for guarantee the uniformity of four anchor clamps space relative position, linkage connecting rod is connected with rotary joint.
Still further, coaxial variable diameter fixing device is provided with four anchor clamps, and circumference evenly sets up in cable accessory stress control body periphery, and four anchor clamps play the effect of supporting and pressing from both sides tight cable accessory stress control body that waits to process, accomplish the operation to cable accessory stress control body of different diameters after the position of adjustment anchor clamps in the anchor clamps slide, the anchor clamps slide both sides are connected with linkage connecting rod and swivelling joint device for guarantee the uniformity of four anchor clamps space relative position, when four anchor clamps are acted on cable accessory stress control body of different diameters, can both guarantee that cable accessory stress control body axle center is in the same position of center.
Furthermore, the clamp is a steel bar wrapped by rubber, stainless steel is adopted inside, softer rubber is used as an outer layer material, clamping friction force is increased, the outer layer of the cable accessory stress control body is protected, and mechanical damage to the reinforced insulating outer layer material or the umbrella skirt is avoided.
Still further, the electric slide rail has 3 working modes: working mode 1: driving the bracket to move to one side of the cable accessory stress control body; working mode 2: reciprocating left and right within a set interval; working mode 3: the bracket is driven to move in a direction away from the cable accessory stress control body.
The modification method of the prefabricated cable accessory rubber reinforced insulation inner surface ultraviolet irradiation modification device specifically comprises the following steps:
step 1: preparation: cleaning the inner surface of the cable accessory stress control body to create a clean environment for grafting work; preparing a graftable compound, an ultraviolet initiator diphenyl ketone and a crosslinking auxiliary agent as a modifying liquid, injecting the modifying liquid into a modifying liquid storage container on a bracket, and injecting a cleaning solvent into a cleaning solvent storage container on the bracket; adjusting the position of the bracket to the rightmost end of the table body, and connecting the whole device with a power supply;
step 2: the coaxial variable diameter fixing device is adjusted to be positioned at the clamp position on the clamp slideway, the cable accessory stress control body is clamped at the center of the clamp with proper force and fixed, the rotating speed of the motor is set, the cable accessory stress control body rotates around the horizontal central axis of the cable accessory stress control body, and the next operation is started after the cable accessory stress control body rotates stably and the rotating speed is stable;
step 3: opening a liquid pump switch arranged on the organic modifying liquid, opening an electric slide rail power switch after the modifying liquid pumped by the liquid pump reaches a spray head and the spraying state is stable, selecting a working mode 1, enabling the spray head to stretch into a cable accessory stress control body at a constant speed under the drive of an electric slide rail, and closing the liquid pump switch and the electric slide rail power switch on the modifying liquid after the spray head completely passes through the length of the cable accessory stress control body;
step 4: switching the electric slide rail to a working mode 2, sequentially switching on an electric slide rail switch, switching on an ultraviolet lamp switch, enabling the ultraviolet lamp to uniformly irradiate the inner surface of the cable accessory stress control body in a reciprocating manner, starting timing, selecting the corresponding optimal irradiation time according to the formula of the modifying liquid, sequentially switching off the ultraviolet lamp after irradiation is finished, and switching off the electric slide rail;
step 5: adjusting the position of the bracket to enable the spray head to extend out of the left end of the cable accessory stress control body, opening a liquid pump switch arranged on the cleaning solvent, enabling the spraying state to be stable, opening an electric slide rail power switch, selecting a working mode 3, enabling the whole bracket to be uniformly pulled away from the cable accessory stress control body under the drive of the electric slide rail, and closing the liquid pump switch and the electric slide rail power switch on the cleaning solvent after the whole bracket is pulled away from the cable accessory stress control body;
step 6: and closing the motor switch, adjusting the clamp position of the coaxial variable diameter fixing device on the clamp slideway after the cable accessory stress control body stops rotating, loosening the clamp, taking out the cable accessory stress control body, and blowing or drying residual cleaning solvent on the inner surface of the cable accessory stress control body to finish modification.
Compared with the prior art, the ultraviolet irradiation modification device for the rubber reinforced insulation inner surface of the prefabricated cable accessory has the beneficial effects that:
(1) According to the invention, the cable accessory stress control body is driven by the motor to rotate around the horizontal axis of the cable accessory stress control body, and the sprayed organic modification solution covers the inner surface of the cable accessory stress control body in continuous rotation, so that the local concentration of the organic modification solution is avoided, the effect of uniform spraying can be achieved, and the consistency of the concentration of grafting reactants and the insulating property of materials on the inner surface of the cable accessory stress control body is ensured.
(2) In order to ensure the small volume of the ultraviolet lamp, the ultraviolet lamp beads are distributed into a strip shape at intervals, the interval distribution of the lamp beads can cause the difference of illumination intensity on the inner surface of the cable accessory stress control body in the axial direction, and the ultraviolet lamp has the advantages that the ultraviolet irradiation intensity is higher at the position opposite to the lamp beads, the ultraviolet irradiation intensity is lower at the position between the lamp beads, and the difference can cause the non-uniformity of the chemical reaction degree on the inner surface of the cable accessory stress control body. When the inner surface of the cable accessory stress control body receives ultraviolet irradiation, the ultraviolet lamps arranged on the support reciprocate by virtue of power provided by the electric sliding rail, and the interval of the reciprocating motion is just the interval between uniformly arranged lamp beads, so that the problems are effectively avoided. Meanwhile, as the cable accessory stress control body rotates at a constant speed along the axis, the irradiation uniformity of ultraviolet light on the circumferential direction of the inner surface of the cable accessory stress control body can be ensured.
(3) The invention realizes the ultraviolet irradiation grafting modification of the inner surface of a narrow space of the cylindrical cable accessory stress control body, ensures the uniform coverage of the modification solution in a rotating way, utilizes the strip-shaped ultraviolet lamp belt to match with the reciprocating motion of the lamp belt and the rotation of the cable accessory stress control body, realizes uniform and controllable ultraviolet irradiation conditions, and utilizes the photoinitiator in the modification solution to initiate the grafting reaction of the graftable compound on the inner surface of the rubber cable accessory stress control body.
(4) The coaxial variable-diameter fixing device is designed, when the cable accessory stress control bodies with different diameters are clamped, the axial lead position of the cable accessory stress control body can be kept unchanged, the coaxial variable-diameter fixing device is coaxial with the ultraviolet lamp band, the outer surface of the cable accessory stress control body is not damaged, the coaxial variable-diameter fixing device can be used for cable accessory stress control bodies with various dimensions, and the coaxial variable-diameter fixing device has the characteristics of being strong in practicability and wide in applicable product specification.
(5) The invention designs the cleaning solvent spraying device, which can be used for cleaning excessive residual modified liquid, avoiding negative influence of excessive residual compounds on the inner surface of the cable accessory stress control body, and can also be used for simply cleaning the inner surface of the cable accessory stress control body. The invention has the characteristic of multifunction.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a device for modifying the ultraviolet irradiation of the rubber reinforced insulation inner surface of a prefabricated cable accessory according to the invention;
FIG. 2 is a schematic view of a cable accessory stress control body clamped by a clamp according to the present invention, wherein the left side is a front view and the right side is a corresponding side view;
FIG. 3 is a schematic view of a coaxial variable diameter fixing device according to the present invention;
in the figure: 1-a table body; 2-an electric motor; 3-transmission means; 4-a transmission shaft; 5-a clamp base; 6-clamping; 7-a cable accessory stress control body; 8-a bracket; 9-spray head; 10-ultraviolet lamp; 11-a catheter; 12-a liquid pump; 13-modifying liquid; 14-a cleaning solvent; 15-an electric slide rail; 16-a bracket base; 5-1-linkage connecting rod; 5-2-clamp slide ways; 5-3-revolute joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that, in the case of no conflict, embodiments of the present invention and features of the embodiments may be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the embodiment is described, and the device for modifying the ultraviolet irradiation of the rubber reinforced insulation inner surface of the prefabricated cable accessory mainly comprises a rotary power device, a coaxial variable-diameter fixing device, an ultraviolet grafting modification generating device and a reciprocating transmission device.
A rotary power device: the platform body 1 provides a stable and horizontal operation platform for the whole equipment, the cable accessory stress control body 7 is fixed in the coaxial variable diameter fixing device, the central axis of the cable accessory stress control body is ensured to be kept horizontal, the platform body 1 supplies power for the motor 2, and the motor 2 drives the coaxial variable diameter fixing device through the transmission device 3 and the transmission shaft 4 to realize the rotation of the cable accessory stress control body around the horizontal central axis of the cable accessory stress control body 7.
Coaxial variable diameter fixing device: the coaxial variable-diameter fixing device consists of a clamp base 5 and a clamp 6, wherein the clamp base 5 is fixedly connected with the transmission shaft 4, and the clamp 6 is arranged on the clamp base 5. The clamp base 5 comprises a linkage connecting rod 5-1, a rotary joint 5-3 and a clamp slideway 5-2, and the clamp can slide or be fixed on the clamp slideway 5-2. The four clamps 6 play a role in supporting and clamping the cable accessory stress control body 7 to be processed, stainless steel is adopted inside the four long clamps 6, softer rubber is used as an outer layer material, the cable accessory stress control body 7 is protected, mechanical damage to reinforced insulating outer layer materials or umbrella skirts is avoided, clamping friction force is increased, a steel column is wrapped by an inner layer of rubber, the integral mechanical strength and bearing capacity of the clamps 6 are improved, and when the cable accessory stress control body 7 rotates around an axis, the cable accessory stress control body is firmly locked, and sliding abrasion between the clamps 6 and a cable accessory cannot occur. After adjusting the position of the clamp 6 on the clamp slide 5-2, the operation of the cable accessory stress control bodies 7 with different diameters can be realized. The linkage connecting rod 5-1 is connected with the rotary joint 5-3, and the consistency of the spatial relative positions of the four clamps 6 is ensured by the linkage connecting rod 5-1 and the rotary joint 5-3, namely, when the four clamps 6 act on cable accessory stress control bodies 7 with different diameters, the same position of the center of the axle center can be ensured.
Ultraviolet light grafting modification generating device: the ultraviolet light grafting modification generating device comprises a modification liquid spraying device and an ultraviolet light lamp 10, wherein the modification liquid spraying device comprises a support 8, a spray head 9, a plurality of guide pipes 11, a liquid pump 12, modification liquid 13 and a cleaning solvent 14, the spray head 9 is arranged at the front end of the support 8, two guide pipes 11 are arranged in the support 8, the modification liquid 13 and the cleaning solvent 14 are arranged in a container at the rear end of the support, the top end of the container is provided with the liquid pump 12, the liquid pump 12 is connected with the spray head 9 at the front end of the support 8 through the guide pipes 11, the liquid pump 12 provides power for grafting work for spraying the modification liquid and cleaning work for spraying the cleaning solvent, and the ultraviolet light lamp 10 is arranged at the front end of the support 8.
A reciprocating transmission device: the reciprocating transmission device comprises a bracket base 16 and an electric sliding rail 15, the mechanical bracket 8 is fixed on the electric sliding rail 15 through the bracket base 16, and the electric sliding rail 15 acts to drive the spray head 9 at the front end of the bracket 8 to realize the movement along the axis of the cable accessory stress control body 7. The electric slide rail 15 has 3 working modes, and the working mode 1: the bracket is driven to move to one side of the cable accessory stress control body 7; working mode 2: reciprocating left and right within a set interval; working mode 3: the bracket is driven to move away from the cable attachment stress control body 7.
The operation process of the ultraviolet irradiation modification device for the rubber reinforced insulation inner surface of the prefabricated cable accessory comprises the following steps:
preparation: cleaning the inner surface of the cable accessory stress control body 7 to create a clean environment for grafting work; preparing a certain proportion of graftable compound, ultraviolet initiator diphenyl ketone and cross-linking auxiliary agent as a modifying liquid 13, injecting the modifying liquid into a modifying liquid storage container on the bracket 8, and injecting a cleaning solvent 14 into a cleaning solvent storage container on the bracket 8; the position of the bracket 8 is adjusted to the rightmost end of the table body 1, and the whole device is connected with a power supply.
Step 1: the coaxial variable diameter fixing device is adjusted to be positioned at the position of a clamp 6 on the clamp slideway 5-2, the cable accessory stress control body 7 is clamped at the center of the clamp with proper force and fixed, the rotating speed of the motor 2 is set, the cable accessory stress control body 7 rotates around the horizontal central axis of the motor, and after the cable accessory stress control body 7 rotates stably and the rotating speed is stable, the next operation is started;
step 2: opening a liquid pump 12 switch arranged on the modifying liquid 13, opening an electric slide rail 15 power switch after the modifying liquid 13 pumped by the liquid pump 12 reaches the spray head 9 and the spraying state is stable, selecting the working mode 1, enabling the spray head 9 to stretch into the cable accessory stress control body 7 at a constant speed under the drive of the electric slide rail 15, and closing the liquid pump 12 switch and the electric slide rail 15 power switch on the modifying liquid 13 after the spray head 9 completely passes through the length of the cable accessory stress control body 7;
step 3: switching the electric slide rail 15 to the working mode 2, sequentially switching on the electric slide rail 15, switching on the ultraviolet lamp 10, enabling the ultraviolet lamp 10 to uniformly irradiate the inner surface of the cable accessory stress control body 7 in a reciprocating manner, starting timing, selecting the corresponding optimal irradiation time according to the formula of the modifying liquid, sequentially switching off the ultraviolet lamp 10 after irradiation is finished, and switching off the electric slide rail 15;
step 4: the position of the bracket 8 is adjusted to enable the spray head 9 to extend out of the left end of the cable accessory stress control body 7, a liquid pump 12 switch arranged on the cleaning solvent 14 is turned on, the state of spraying is stable, a power switch of the electric sliding rail 15 is turned on, the working mode 3 is selected, the whole bracket 8 is uniformly pulled away from the cable accessory stress control body 7 under the driving of the electric sliding rail 15, and after the whole bracket 8 is pulled away from the cable accessory stress control body 7, the liquid pump 12 switch and the power switch of the electric sliding rail 15 on the cleaning solvent 14 are turned off.
Step 5: and closing a switch of the motor 2, adjusting the position of the coaxial variable diameter fixing device on the clamp 6 on the clamp slide way 5-2 when the cable accessory stress control body 7 stops rotating, loosening the clamp 6, taking out the cable accessory stress control body 7, and blowing or drying residual cleaning solvent on the inner surface of the cable accessory stress control body 7 to finish modification.
According to the invention, the motor 2 drives the cable accessory stress control body 7 to rotate around the horizontal axis of the cable accessory stress control body, and the sprayed organic modification solution covers the inner surface of the cable accessory stress control body 7 in continuous rotation, so that the local concentration of the organic modification solution is avoided, the effect of uniform spraying can be achieved, and the consistency of the concentration of grafting reactants and the insulating property of materials on the inner surface of the cable accessory stress control body 7 is ensured.
In order to ensure the small volume of the ultraviolet lamp 10, the ultraviolet lamp beads are arranged at intervals to form a strip shape, the interval distribution of the lamp beads can cause the difference of illumination intensity on the inner surface of the cable accessory stress control body 7 in the axial direction, and the difference is particularly characterized in that the position, which is opposite to the lamp beads, receives ultraviolet irradiation to a higher degree, the ultraviolet irradiation intensity on the position between the lamp beads is lower, and the difference tends to cause the non-uniformity of the chemical reaction degree on the inner surface of the cable accessory stress control body 7. According to the invention, when the inner surface of the cable accessory stress control body 7 receives ultraviolet irradiation, the ultraviolet lamps 10 arranged on the support reciprocate by virtue of the power provided by the electric slide rail, and the reciprocating movement interval is just the distance between uniformly arranged lamp beads, so that the problems are effectively avoided. Meanwhile, as the cable accessory stress control body 7 rotates at a constant speed along the axis, the irradiation uniformity of ultraviolet light in the circumferential direction of the inner surface of the cable accessory stress control body can be ensured.
The invention fixes the cable accessory stress control body 7 in the axial direction through the coaxial variable diameter fixing device, and the ultraviolet irradiation conditions required by spraying and grafting of the organic modification solution are realized in space inside the cable accessory stress control body 7. The invention accomplishes this by a metal bracket 8 of sufficient length, a spray head 9 is fixed at the end of the bracket 8, a conduit 11 is arranged inside the hollow bracket 8, the connection between the spray head 9 and the organic modifying solution or cleaning liquid (the cleaning solvent can be absolute ethyl alcohol or acetone, etc.) is realized by the conduit 11, and the spraying of the organic modifying solution and the cleaning solvent is powered by a liquid pump 12.
In a specific practical use situation, the advancing speed of the spray head 9 along the axial direction of the cable accessory stress control body 7 can be calculated according to the spray rate of the spray head 9, the length of the cable accessory stress control body 7 required to be modified and the dosage of the organic modification solution required by the material. At this speed, when the spray head 9 passes through the axial length of the cable accessory stress control body 7 to be modified, the spraying is just finished, and the spraying effect can be accurate in dosage and uniform in spraying.
The bracket 8 is fixed on the transmission electric slide rail 15 through the bracket base 16, and the electric slide rail 15 is driven at a constant speed at a certain set speed. After the spraying operation is finished, an ultraviolet light tube with enough length is arranged in the cable accessory stress control body 7 and provides illumination conditions for grafting reaction on the inner surface of the cable accessory stress control body, and the ultraviolet light tube light emitting unit is an array ultraviolet LED with the wavelength of 365nm. Setting the distance between each lamp bead of an ultraviolet lamp to be 5cm, when the ultraviolet lamp irradiates a grafting link, controlling the whole bracket to axially reciprocate according to the distance between two lamp beads through the electric sliding rail 15, avoiding uneven differentiation of the irradiation degree of the inner surface of the cable accessory stress control body 7 along the axis direction, and finally after irradiation grafting modification, cleaning the inner surface by using a volatile organic solvent (absolute ethyl alcohol or acetone and the like) to remove impurities, ungrafted compounds and grafting reaction byproducts remained on the inner surface of the cable accessory stress control body 7. In the whole process, the rotatable clamp 6 is used for keeping the cable accessory stress control body 7 horizontal and rotating at a constant speed along the axis line of the cable accessory stress control body, so that the modification solution and the clear solvent are uniformly distributed on the inner surface of the cable accessory stress control body 7, and the non-uniformity of the grafting effect or the cleaning effect is avoided.
The invention realizes the ultraviolet irradiation grafting modification of the inner surface of the narrow space of the cylindrical cable accessory stress control body 7, ensures the uniform coverage of the modification solution in a rotating way, utilizes the strip-shaped ultraviolet lamp belt to match with the reciprocating motion of the lamp belt and the rotation of the cable accessory stress control body, realizes uniform and controllable ultraviolet irradiation conditions, and utilizes the photoinitiator in the modification solution to initiate the grafting reaction of the graftable compound on the inner surface of the rubber cable accessory stress control body.
The coaxial variable-diameter fixing device is designed, when the cable accessory stress control body 7 with different diameters is clamped, the position of the axis of the cable accessory stress control body 7 can be kept unchanged, the coaxial variable-diameter fixing device is coaxial with the ultraviolet lamp band, the outer surface of the cable accessory stress control body 7 is not damaged, the coaxial variable-diameter fixing device can be used for cable accessory stress control bodies with various sizes, and the coaxial variable-diameter fixing device has the characteristics of being strong in practicability and wide in applicable product specification.
The invention designs a cleaning solvent spraying device which can be used for cleaning excessive residual modified liquid and avoiding negative influence of excessive residual compounds on the inner surface of the cable accessory stress control body 7. When the inner surface of the cable accessory stress control body 7 is not required to be modified, the device can be simply used for cleaning the inner surface of the cable accessory stress control body 7 by liquid, and has the characteristic of multifunction.
In a specific practical application of the invention, a protective shield may be added to the device in order to prevent liquid splashing and ultraviolet light from radiating to the personnel. In addition, in order to ensure the uniformity of the modifying liquid, a heating element or a stirring element can be added in the modifying liquid container.
The embodiments of the invention disclosed above are intended only to help illustrate the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention.
Claims (10)
1. A prefabricated cable accessory rubber reinforced insulation inner surface ultraviolet irradiation modification device is characterized in that: the ultraviolet light grafting modification generation device comprises a modification liquid spraying device and an ultraviolet light lamp (10), wherein a spray head (9) of the modification liquid spraying device and the ultraviolet light lamp (10) can extend into the cable accessory stress control body (7), the ultraviolet light lamp (10) and the spray head (9) of the modification liquid spraying device are arranged at the front end of a support (8), and the reciprocating transmission device drives the support (8) to move.
2. The preformed cable accessory rubber reinforced insulation inner surface ultraviolet radiation modification apparatus of claim 1 wherein: the rotary power device comprises a motor (2), a transmission device (3) and a transmission shaft (4), wherein the motor (2) drives the coaxial variable-diameter fixing device through the transmission device (3) and the transmission shaft (4) to realize that a cable accessory stress control body (7) rotates around a horizontal central axis of the cable accessory stress control body (7).
3. The preformed cable accessory rubber reinforced insulation inner surface ultraviolet radiation modification apparatus of claim 2 wherein: the coaxial variable-diameter fixing device comprises a clamp base (5) and a clamp (6), wherein the clamp base (5) is fixedly connected with the transmission shaft (4), and the clamp (6) is arranged on the clamp base (5).
4. A preformed cable accessory rubber reinforced insulation inner surface ultraviolet radiation modifying apparatus of claim 3 wherein: the fixture base (5) comprises a plurality of linkage connecting rods (5-1), a plurality of rotary joints (5-3) and fixture slide ways (5-2), wherein the fixture (6) can slide or be fixed on the fixture slide ways (5-2), the two sides of the fixture slide ways (5-2) are connected with the linkage connecting rods (5-1) and the rotary joints (5-3) for guaranteeing the consistency of the space relative positions of the four fixtures (6), and the linkage connecting rods (5-1) are connected with the rotary joints (5-3).
5. The device for modifying the ultraviolet radiation on the rubber-reinforced insulating inner surface of a prefabricated cable accessory according to claim 4, wherein: the coaxial variable diameter fixing device is provided with four clamps (6), the four clamps (6) are circumferentially and uniformly arranged on the periphery of the cable accessory stress control body (7), the four clamps (6) play a role in supporting and clamping the cable accessory stress control body to be processed, and after the positions of the clamps (6) on the clamp slide ways (5-2) are adjusted, the cable accessory stress control bodies (7) with different diameters are operated.
6. The device for modifying the ultraviolet radiation on the rubber-reinforced insulating inner surface of a prefabricated cable accessory according to claim 5, wherein: the fixture (6) is a steel bar wrapped by rubber, stainless steel is adopted inside, softer rubber is used as an outer layer material, the outer layer of the cable accessory stress control body (7) is protected, and mechanical damage to reinforced insulating outer layer materials or umbrella skirts is avoided.
7. The device for modifying the ultraviolet radiation on the rubber-reinforced insulating inner surface of a prefabricated cable accessory according to claim 5, wherein: the modified liquid spraying device comprises a support (8), a spray head (9), a plurality of guide pipes (11), a liquid pump (12), modified liquid (13) and a cleaning solvent (14), wherein the spray head (9) is arranged at the front end of the support (8), a plurality of guide pipes (11) are arranged in the support (8), the modified liquid (13) and the cleaning solvent (14) are arranged in a containing container at the rear end of the support (8), the liquid pump (12) is arranged at the top end of the containing container, the liquid pump (12) is connected with the spray head (9) at the front end of the support (8) through the guide pipes (11), and the liquid pump (12) provides power for grafting work of spraying the modified liquid (13) and cleaning work of spraying the cleaning solvent (14).
8. The preformed cable accessory rubber reinforced insulation inner surface ultraviolet radiation modification apparatus of claim 7 wherein: the reciprocating transmission device comprises a support base (16) and an electric sliding rail (15), wherein the support (8) is fixed on the electric sliding rail (15) through the support base (16), and the electric sliding rail (15) acts to drive a spray head (9) and an ultraviolet lamp (10) at the front end of the support (8) to move along the axis of the cable accessory stress control body.
9. The preformed cable accessory rubber reinforced insulation inner surface ultraviolet radiation modification apparatus of claim 8 wherein: the electric sliding rail (15) has 3 working modes: working mode 1: the bracket (8) is driven to move to one side of the cable accessory stress control body (7); working mode 2: reciprocating left and right within a set interval; working mode 3: the bracket (8) is driven to move in a direction away from the cable accessory stress control body (7).
10. A modification method of a rubber reinforced insulation inner surface ultraviolet irradiation modification device for a prefabricated cable accessory according to claim 9, which is characterized by comprising the following steps: the method specifically comprises the following steps:
step 1: preparation: cleaning the inner surface of a cable accessory stress control body (7), preparing a graftable compound, an ultraviolet initiator diphenyl ketone and a crosslinking auxiliary agent as a modifying liquid (13), injecting the modifying liquid into a modifying liquid storage container on a bracket (8), and injecting a cleaning solvent (14) into a cleaning solvent storage container on the bracket (8); the position of the bracket (8) is adjusted to the rightmost end of the table body (1) to connect the power supply for the whole device;
step 2: the coaxial variable diameter fixing device is adjusted to be positioned at the position of a clamp (6) on a clamp slideway (5-2), a cable accessory stress control body (7) is clamped at the center of the clamp (6) and fixed, the rotating speed of a motor (2) is set, the cable accessory stress control body (7) rotates around the horizontal central axis of the cable accessory stress control body (7), and the next operation is started after the cable accessory stress control body (7) rotates stably and the rotating speed is stable;
step 3: opening a liquid pump (12) switch arranged on the modifying liquid (13), opening a power switch of an electric slide rail (15) after the modifying liquid pumped by the liquid pump (12) reaches a spray head (9) and the spraying state is stable, selecting a working mode 1, enabling the spray head (9) to stretch into a cable accessory stress control body (7) at a constant speed under the drive of the electric slide rail (15), and closing the power switch of the liquid pump (12) and the electric slide rail (15) on the modifying liquid (13) after the spray head (9) completely passes through the length of the cable accessory stress control body (7);
step 4: switching the electric slide rail (15) to a working mode 2, sequentially switching on a power switch of the electric slide rail (15), switching on a switch of an ultraviolet lamp (10), enabling the ultraviolet lamp (10) to uniformly irradiate the inner surface of a cable accessory stress control body (7) in a reciprocating manner, starting timing, selecting the corresponding optimal irradiation time according to a formula of a modifying liquid, sequentially switching off the ultraviolet lamp (10) after irradiation is finished, and switching off the electric slide rail (15);
step 5: adjusting the position of the bracket (8) to enable the spray head (9) to extend out of the left end of the cable accessory stress control body (7), opening a liquid pump (12) switch arranged on the cleaning solvent (14), opening an electric slide rail (15) switch and selecting a working mode 3 when the spraying state is stable, enabling the whole bracket (8) to be uniformly pulled away from the cable accessory stress control body (7) under the driving of the electric slide rail (15), and closing the liquid pump (12) switch and the electric slide rail (15) switch on the cleaning solvent (14) after the whole bracket (8) is pulled away from the cable accessory stress control body (7);
step 6: and closing a switch of the motor (2), and after the cable accessory stress control body (7) stops rotating, adjusting the position of the coaxial variable diameter fixing device on the clamp slide way (5-2) to be positioned at the clamp (6), taking out the cable accessory stress control body (7), and blowing or drying residual cleaning solvent on the inner surface of the cable accessory stress control body (7) to finish modification.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310727538.1A CN116459987A (en) | 2023-06-20 | 2023-06-20 | Rubber reinforced insulation inner surface ultraviolet irradiation modification device for prefabricated cable accessory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310727538.1A CN116459987A (en) | 2023-06-20 | 2023-06-20 | Rubber reinforced insulation inner surface ultraviolet irradiation modification device for prefabricated cable accessory |
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| CN116459987A true CN116459987A (en) | 2023-07-21 |
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| CN202310727538.1A Pending CN116459987A (en) | 2023-06-20 | 2023-06-20 | Rubber reinforced insulation inner surface ultraviolet irradiation modification device for prefabricated cable accessory |
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| CN216730625U (en) * | 2021-12-10 | 2022-06-14 | 上海艾客盛实业有限公司 | Clamping device of cutting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH634247A5 (en) * | 1979-03-29 | 1983-01-31 | Fischer Ag Georg | Apparatus for the concentric clamping of workpieces which are circular in cross-section, in particular tubes |
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