Power cable's sticiss mould heat dissipation lubricating arrangement
Technical Field
The invention relates to the technical field of power cable processing, in particular to a heat dissipation and lubrication device for a compression mold of a power cable.
Background
The power cable has been used for hundreds of years, is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater. The proportion of cables in electric power lines is increasing, and in particular, electric power cables are the medium used to transmit and distribute high-power electric energy in the main lines of electric power systems. Because power cable can receive great external force traction in the installation use for it is very easily to take place the structure of certain degree and stretches out and draws back, in order to guarantee power cable's extension toughness, must utilize the mould of sticising to its operation of sticising in manufacturing process, it is the very common stranding mould of conductor stranding in-process.
However, the existing compacting equipment still has many defects due to the technical limitation: firstly, a large amount of heat is easily generated in the compressing process, and related mechanisms with the heat dissipation and cooling effects are not matched and installed on the compressing equipment, so that the high-temperature heat can only be accumulated on the compressing equipment and a power cable for a long time, and then various functional faults or process problems are caused on the compressing equipment, most commonly, the service life of a compressing mould is easily reduced due to the overhigh temperature, the mechanical property of a conductor is easily influenced, the friction force between the conductor and the compressing mould is increased, and the surface quality of the conductor is influenced; secondly, as the thermal expansion coefficient of copper is greater than that of alloy steel, the higher the temperature is during stranding, the higher the expansion of the conductor is than that of alloy steel, so that the friction force between the conductor and a pressing die is increased, the pressing device is easy to cause serious extrusion wear to the power cable, the structural deformation or even breakage and fracture of the power cable are caused, and the mechanical property of the copper molded line is reduced or the power cable is turned over; thirdly, the problem that the overhigh temperature cannot be effectively solved in a long time period can also cause the conductor to be oxidized in a high-temperature environment, so that the service life of the power cable is greatly shortened, and the updating cost of a power cable system is increased; and also affects the safety of the power cable system.
Disclosure of Invention
The invention aims to solve the problem that fine processing treatment is difficult to carry out on a power cable in the prior art, and provides a heat dissipation and lubrication device for a compression die of the power cable.
In order to achieve the purpose, the invention adopts the following technical scheme:
a heat dissipation and lubrication device for a compression mold of a power cable comprises an upper support and a lower support, wherein the upper support and the lower support are jointly connected with a central fixing frame, four arc-shaped pressing plates are connected to the central fixing frame through a pin shaft, a driven gear is rotatably arranged between the upper support and the lower support, a traction rod is connected between the driven gear and the arc-shaped pressing plates through a pin shaft, a side frame is welded on one side of the lower support, a motor and a rotating shaft which are connected are respectively arranged on the lower support and the side frame, and a driving gear meshed with the driven gear is fixedly sleeved on the rotating shaft;
the left ends of the lower bracket and the upper bracket are provided with a pretreatment mechanism, and the right ends of the upper bracket and the lower bracket are provided with a post-treatment mechanism;
pretreatment mechanism is including setting up the heater on the lower carriage left end, and fixedly connected with preheats the lantern ring on the heater, be provided with the batch oil tank and the solenoid valve that are connected on the upper bracket left end respectively, and the lubricated lantern ring of fixedly connected with on the solenoid valve, aftertreatment mechanism is including setting up storage water tank and the hydraulic pump on the upper bracket right-hand member, and fixedly connected with sprays the lantern ring on the hydraulic pump, side bearer fixed mounting has the suction fan, and fixedly connected with on the suction fan blows the lantern ring.
Preferably, the upper bracket and the lower bracket are fixedly arranged in an up-down corresponding manner, the central fixed frame and the driven gear of the annular structure are both positioned between the upper bracket and the lower bracket, and the side frame is vertically connected to the right end of the lower bracket.
Preferably, the four arc-shaped pressing plates are circumferentially and equidistantly distributed on the central fixing frame, two ends of each arc-shaped pressing plate are respectively connected with the central fixing frame and the traction rod, the central fixing frame and the driven gear are concentrically arranged, and the central fixing frame and the four arc-shaped pressing plates are located in the driven gear.
Preferably, all weld on upper bracket and the lower carriage has the guide block, and sets up the guide way of guide block in driven gear one side, guide way quantity is two, and two guide ways correspond and are located driven gear upper and lower both ends.
Preferably, the guide groove is of an arc structure, and the guide block is of an arc structure with a length value of one third of that of the guide groove.
Preferably, the motor is fixedly arranged on the lower support, a rotating shaft connected with the output end of the motor is horizontally and rotatably arranged on the side frame, and the driving gear is positioned at the lower end of the driven gear.
Preferably, the preheating lantern ring and the lubricating lantern ring are horizontally and correspondingly positioned on the left side of the central fixing frame, and the preheating lantern ring and the lubricating lantern ring are arranged from left to right.
Preferably, the spraying lantern ring and the blowing lantern ring are horizontally and correspondingly positioned on the right side of the central fixing frame, and the spraying lantern ring and the blowing lattice lantern ring are arranged from left to right.
Compared with the prior art, the invention has the following advantages:
1. the upper support and the lower support which correspond up and down are connected with the central fixing frame together, the four arc-shaped pressing plates are circumferentially and equidistantly arranged on the central fixing frame, the driven gear connected with the arc-shaped pressing plates is arranged between the upper support and the lower support, and the driving gear driven by the motor to rotate is arranged on the lower support, so that the driven gear supports the four arc-shaped pressing plates to be closed under the driving action of the driving gear, and the power cable passing through the central fixing frame is properly pressed.
2. According to the invention, the lower support and the upper support are provided with the pretreatment mechanisms positioned on the left side of the central fixing frame, and the preheating lantern ring power cable with an annular structure is utilized for carrying out omnibearing heating, so that the structure of the power cable tends to be flexible, and further compression is facilitated in the later stage; and then the lubricating sleeve ring with an annular structure is used for spraying lubricating oil to the power cable in an all-around mode, so that the power cable can be lubricated.
3. According to the invention, the post-processing mechanisms positioned on the right side of the central fixing frame are arranged on the lower support and the upper support, and the spraying collars with annular structures are used for carrying out omnibearing cold water spraying on the power cable, so that the power cable is cooled and radiated under the action of cold water; and then the blowing lantern ring with the annular structure is used for blowing the power cable with cold water in all directions to accelerate the evaporation of the cold water and realize efficient blowing and drying treatment.
In summary, the upper bracket and the lower bracket are connected with the central fixing frame, four arc-shaped pressing plates are circumferentially and equidistantly arranged on the central fixing frame, the driven gear connected with the arc-shaped pressing plates is arranged between the upper bracket and the lower bracket, and the driving gear driven by the motor to rotate is arranged on the lower bracket, so that the driven gear supports the four arc-shaped pressing plates to be closed under the driving action of the driving gear, and the power cable is compressed and bundled; the preheating lantern ring power cable with the annular structure is used for heating in all directions, so that the structure of the power cable tends to be flexible; the lubricating sleeve with the annular structure is used for spraying lubricating oil on the power cable in an all-around manner so as to lubricate the power cable; the spraying sleeve ring with the annular structure is used for spraying cold water to the power cable in an all-around manner, so that the power cable is cooled and radiated under the action of the cold water; and then the power cable with cold water is blown in all directions by utilizing the blowing lantern ring with the annular structure, so that efficient blowing and drying are realized.
Drawings
Fig. 1 is a schematic structural diagram of a heat dissipation and lubrication device of a compression mold of a power cable according to the present invention;
fig. 2 is an enlarged schematic view of a part a of a heat dissipation and lubrication device of a compression mold of a power cable according to the present invention;
fig. 3 is a schematic view of an open state of an arc-shaped pressing plate of the heat dissipation and lubrication device of the pressing mold of the power cable according to the present invention;
fig. 4 is a schematic view of a closed state of an arc-shaped pressing plate of the heat dissipation and lubrication device of the pressing die of the power cable according to the present invention;
fig. 5 is a schematic distribution diagram of a central fixing frame and a driven gear of the heat dissipation and lubrication device of the compaction die for the power cable according to the present invention;
fig. 6 is a schematic distribution diagram of a preheating lantern ring, a lubricating lantern ring, a spraying lantern ring and a blowing lantern ring of the heat dissipation and lubrication device for a compression die of a power cable provided by the invention.
In the figure: the device comprises an upper support 1, a lower support 2, a central fixing frame 3, an arc-shaped pressing plate 4, a guide block 5, a driven gear 6, a guide groove 7, a traction rod 8, a side frame 9, a motor 10, a rotating shaft 11, a driving gear 12, a heater 13, a preheating lantern ring 14, a preheating lantern ring 15, an oil storage tank 16, an electromagnetic valve 16, a lubricating lantern ring 17, a water storage tank 18, a hydraulic pump 19, a spraying lantern ring 20, a suction fan 21 and a blowing lantern ring 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a heat dissipation and lubrication device for a compression mold of a power cable comprises an upper bracket 1 and a lower bracket 2, as can be seen from fig. 1 and fig. 5 of the specification, the upper bracket 1 and the lower bracket 2 are connected together with a central fixing frame 3, the central fixing frame 3 is of an annular structure, which is always in a static state, four arc-shaped pressing plates 4 are connected with the upper pin shaft of the central fixing frame 3, a driven gear 6 is rotationally arranged between the upper bracket 1 and the lower bracket 2, the driven gear 6 can perform reciprocating rotation at a certain angle, and a draw bar 8 is connected between the driven gear 6 and the arc-shaped pressing plate 4 through a pin shaft, one side of the lower bracket 2 is welded with a side frame 9, the side frame 9 is positioned below the right side of the central fixing frame 3, a motor 10 and a rotating shaft 11 which are connected are respectively arranged on the lower bracket 2 and the side bracket 9, and a driving gear 12 which is meshed with the driven gear 6 is fixedly sleeved on the rotating shaft 11;
with particular reference to the description accompanying figure 3: when the four arc-shaped pressing plates 4 are in an opening state, the middle end space is large, and the power cable can move freely through the central fixing frame 3;
with specific reference to the description accompanying fig. 4: under the closed state, the middle end space of the four arc-shaped pressing plates 4 is small, and the four arc-shaped pressing plates 4 can pressurize and contract the power cable in the closing process.
The left ends of the lower support 2 and the upper support 1 are provided with a pretreatment mechanism, the pretreatment mechanism can preheat and lubricate the power cable before compression, the right ends of the upper support 1 and the lower support 2 are provided with a post-treatment mechanism, and the post-treatment mechanism can humidify and cool the compressed power cable;
the pretreatment mechanism comprises a heater 13 arranged on the left end of the lower bracket 2, the heater 13 is infrared ray type optical heating equipment, and can adopt a CERAMICX infrared ray preheating and heating device which is the current brand on the market. And a preheating lantern ring 14 is fixedly connected on the heater 13, infrared emitters surrounding the power cable are distributed in the heating lantern ring 14 to conveniently carry out overall irradiation heating on the power cable, a connected oil storage tank 15 and an electromagnetic valve 16 are respectively arranged on the left end of the upper support 1, the oil storage tank 15 is used for storing lubricating oil, the electromagnetic valve 16 is controlled and is fixedly connected with a lubricating lantern ring 17, a plurality of spray heads surrounding the power cable are connected on the lubricating lantern ring 17, the spray heads can carry out omnibearing spray coating on the power cable under the unified control of the electromagnetic valve 16, the post-processing mechanism comprises a water storage tank 18 and a hydraulic pump 19 which are arranged on the right end of the upper support 1, the water storage tank 18 is used for storing pure cold water, a spraying lantern ring 20 is fixedly connected on the hydraulic pump 19, a plurality of spray heads surrounding the power cable are connected on the spraying lantern ring 20, under the driving action of the hydraulic pump 19, the spraying head can spray the power cable in all directions, the side frame 9 is fixedly provided with the suction fan 21, the suction fan 21 is fixedly connected with the blowing lantern ring 22, and a plurality of blowing openings distributed around the power cable are formed in the blowing lantern ring 22, so that the power cable can be comprehensively blown.
The upper support 1 and the lower support 2 are correspondingly fixed up and down, the central fixing frame 3 and the driven gear 6 which are of annular structures are both positioned between the upper support 1 and the lower support 2, the central fixing frame 3 can be installed and fixed by utilizing the upper support 1 and the lower support 2, and the side frame 9 is vertically connected to the right end of the lower support 2.
Four arc clamp plates 4 circumference equidistance distribute on central mount 3, and the both ends of arc clamp plate 4 are connected with central mount 3 and traction lever 8 respectively, central mount 3 sets up with driven gear 6 is concentric, and central mount 3 is arranged in driven gear 6 with four arc clamp plates 4, and driven gear 6 supports arc clamp plate 4 through traction lever 8 support at rotatory in-process to open and close to arc clamp plate 4 is controlled.
All the welding has guide block 5 on upper bracket 1 and the lower carriage 2, and has seted up the guide way 7 that guide block 5 was established to the slip cap in 6 one sides of driven gear, and guide way 7 quantity is two, and two guide ways 7 correspond and lie in driven gear 6 about both ends, and driven gear 6 is at rotatory in-process, uses two guide blocks 5 as the basic point to it is spacing to provide the direction for driven gear 6, ensures driven gear 6's accurate motion.
The guide slot 7 is of an arc structure to meet the requirement of the rotary motion of the driven gear 6, and the guide block 5 is of an arc structure with the length value of one third of that of the guide slot 7.
The motor 10 is fixedly arranged on the lower support 2, the rotating shaft 11 connected with the output end of the motor 10 is horizontally and rotatably arranged on the side frame 9, the driving gear 12 is positioned at the lower end of the driven gear 6, the motor 10 is a servo motor with the product model of HC-KFS13B, and the driving gear 12 capable of rotating bidirectionally drives the driven gear 6 to rotate bidirectionally under the driving action of the motor 10.
Referring to fig. 6 in the specification, the preheating collar 14 and the lubricating collar 17 are horizontally located on the left side of the central fixing frame 3, and the preheating collar 14 and the lubricating collar 17 are arranged from left to right, so that the preheating and lubricating treatment can be performed on the power cable before being compressed.
The spraying lantern ring 20 and the blowing lantern ring 22 are horizontally and correspondingly positioned on the right side of the central fixing frame 3, and the spraying lantern ring 20 and the blowing lantern ring 22 are arranged from left to right, so that the compressed power cable can be humidified, cooled and dried.
The invention can be illustrated by the following operating modes:
the power cable is sequentially passed through a preheating lantern ring 14, a lubricating lantern ring 17, a central fixing frame 3, a spraying lantern ring 20 and a blowing lantern ring 22;
controlling the heater 13 to be started, so that the preheating lantern ring 14 carries out omnibearing heating on the electric connection cable, and the temperature of the power cable is increased to 35-55 ℃;
the electromagnetic valve 16 is controlled to be opened, lubricating oil in the oil storage tank 15 is conveyed to the lubricating lantern ring 17 through the electromagnetic valve 16, and the lubricating oil is sprayed on the power cable in an all-around mode through the lubricating lantern ring 17, so that the surface of the power cable is smooth;
the motor 10 is controlled to be started on the lower support 2, the output end of the motor 10 drives the rotating shaft 11 to rotate on the side frame 9, the rotating shaft 11 drives the driving gear 12 to rotate, the driving gear 12 drives the driven gear 6 which is meshed with the driving gear 12 to rotate, and in the process, the guide block 5 can slide in the guide groove 7 to provide a guide limiting effect for the driven gear 6;
the rotating driven gear 6 drives the traction rod 8 to synchronously rotate, and the traction rod 8 is used for extruding and supporting the arc-shaped pressing plates 4 connected with the traction rod 8, so that the four arc-shaped pressing plates 4 jointly deflect and gradually close by taking the central fixing frame 3 as a base point, and the power cable passing through the central fixing frame 3 is appropriately compressed;
then the motor 10 is controlled to be opened reversely, the motor 10 drives the driven gear 6 to rotate reversely through the driving gear 12, so that the four arc-shaped pressing plates 4 are opened completely;
the hydraulic pump 19 is controlled to be started, cold water in the water storage tank 18 is conveyed to the spraying lantern ring 20 through the hydraulic pump 19, the spraying lantern ring 20 is used for spraying cold water on the power cable in an all-around mode, the power cable and lubricating oil are cooled, and therefore the lubricating oil can be quickly adhered and fixed on the power cable;
the control suction fan 21 is started, the suction fan 21 blows the power cable in all directions through the blowing lantern ring 22 to accelerate cold water evaporation on the power cable, and the cold water evaporation needs to depend on heat absorption of the power cable and the surrounding environment, so that the power cable can realize gradual cooling and heat dissipation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.