Invention content
To overcome existing defect, the present invention to propose that a kind of groove-shape rail preheats and soldering integration apparatus.
A kind of preheating of groove-shape rail and soldering integration apparatus, including small rail car, the small rail car top installation are set
Set handpiece Water Chilling Units, intermediate frequency power cabinet, wire reel, arc welder, transformer, induction coil guide clamping mechanism, sensing heating line
Circle and welding gun holding frame, the in-house load coil of the transformer connection induction coil guide clamping, induction coil
Guide clamping mechanism is fixedly connected on small rail car side.
Wherein, induction coil guide clamping mechanism include walking steamboat, installation hinge, aluminium alloy frame, insulated mounting plate and
Welding gun holding frame, wherein aluminium alloy frame is arranged in induction coil guide clamping mechanism both sides, and insulated mounting plate is set to induction coil
In the middle part of guide clamping mechanism, insulated mounting plate lower end setting walking steamboat, wherein on the inside of insulated mounting plate between aluminium alloy frame
Spring is set.
Wherein, walking steamboat is multiple, and walking steamboat wheel face is groove profile rail arc shape.
Wherein, load coil is set on insulated mounting plate, wherein load coil includes imitative groove profile rail cambered surface
Multi-loop copper tube, silicon steel sheet is set on the multi-loop copper tube.
Wherein, cooling water nozzle is arranged in load coil top, wherein cooling water nozzle is multiple, load coil top
Two copper electrode plates are arranged in portion, and insulation board is arranged between two copper electrode plates.
Groove-shape rail preheating through the invention and soldering integration apparatus, the device structure is compact, production efficiency is high.Solution
The side grinding problem of stock rail in groove-shape rail sharp radius curve section of having determined.The equipment disposably long range can be preheated and be welded
Operation is mended, working efficiency is not only increased, while reducing artificial interference, improves the quality of weld seam.
Specific implementation mode
A kind of groove-shape rail preheating provided by the invention and soldering integration are set in the following with reference to the drawings and specific embodiments
It is standby to be described in detail.
Fig. 1 shows, a kind of groove-shape rail preheating and soldering integration apparatus, including small rail car 5, the small rail car 5
Top installation settings handpiece Water Chilling Units 1, intermediate frequency power cabinet 2, wire reel 3, arc welder 4, transformer 6, induction coil guide clamping
Mechanism 7, load coil 8 and welding gun holding frame 9, the transformer 6 connect the sense inside induction coil guide clamping mechanism 7
Heating coil 8 is answered, induction coil guide clamping mechanism 7 is met and is fixedly connected on 5 side of small rail car.Small rail car 5 loads it
With certain speed, in groove-shape rail 10, complete machine moves his component from left to right.Carriage walking movement speed is mounted on underbody by a set of
The driving mechanism in portion provides, and speed is at the uniform velocity adjustable.
The preheating system being made of components such as intermediate frequency power cabinet 2, transformer 6, load coils 8 during carriage walking
System carries out continuous heating to load coil side channel shaped steel rail.
Fig. 2 shows load coil 8 is set on insulated mounting plate 13, wherein load coil 8 includes imitative slot
Silicon steel sheet 19 is arranged on the multi-loop copper tube 18 for the multi-loop copper tube 18 of type rail cambered surface.It is furnished with a large amount of silicon steel sheets on multi-loop copper tube 18
19 to reinforce induced field at cambered surface.19 place cambered surface of silicon steel sheet is the groove cambered surface for heating groove-shape rail, that is, slot
Shaped steel rail cover to be welded sets 20 (and in-site measurement rail most easily-worn positions), as shown in Fig. 3.
Cooling water nozzle 17 is arranged in 8 top of load coil, wherein cooling water nozzle 17 is multiple, and load coil 8 pushes up
Two copper electrode plates 16 are arranged in portion, and insulation board is arranged between two copper electrode plates 16.
Equipped with a large amount of silicon steel sheets 19 to reinforce induced field at cambered surface on multi-loop copper tube 18.19 place cambered surface of silicon steel sheet is used
In the groove cambered surface of heating groove-shape rail, that is, groove-shape rail cover to be welded sets 20 (and in-site measurement rail is most easy to wear
Position), as shown in Fig. 3.
Induction coil guide clamping mechanism 7 includes walking steamboat 14, installation hinge 11, aluminium alloy frame 12, insulated mounting plate
13 and welding gun holding frame 9, wherein aluminium alloy frame 12 is arranged in 7 both sides of induction coil guide clamping mechanism, and insulated mounting plate 13 is arranged
In 7 middle part of induction coil guide clamping mechanism, 13 lower end of insulated mounting plate setting walking steamboat 14, wherein insulated mounting plate 13
Spring 21 is set between inside and aluminium alloy frame 12.
Steamboat 14 of walking is multiple, and walking 14 wheel face of steamboat is groove profile rail arc shape.
In Specific construction, small rail car is driven by driving motor, can be moved forward and backward along grooved track, forward speed
It can freely adjust between 0-8mm/s.Before carrying out preheating and soldering operation, need, first by trolley along track travel a small distance, to see
It examines and adjusts the clip position of welding gun and preheat coil and waited at a distance from supplement of an arc face with groove-shape rail.After adjustment, according to setting
Trolley forward or backward speed, set matched induction heating power output power (adjustable extent is in 0-80KW) and
Arc welding wire feed rate.After being all provided with, starting induction heating power and small rail car, induction coil will begin to warm up
Groove-shape rail, after waiting for a bit of time (about 20s, specific time change according to the speed of travel that trolley is set) of complete machine walking,
Start arc welder and carries out soldering operation.The effect for first opening heating power supply is that rail heating needs the time, through after a period of time
Afterwards, follow-up position to be welded can reach expected preheating temperature, and the quality of soldering operation can just be guaranteed.Pass through above-mentioned step
Suddenly, so that it may to realize the continuously pre-heating and the soldering operation that carry out long range to groove-shape rail.
During carriage walking, pre-heating system first heats groove-shape rail groove cambered surface, when trolley continues to move to, welding gun
Holding frame 9 and electric torch mounted thereon will be moved to and had at the groove-shape rail of certain temperature, be opened by soldering system
Beginning weld job.During trolley is advanced, along the axial direction of load coil side channel shaped steel rail, complete machine will continue
Progress first preheat, the operation process of rear soldering finally obtains a long weld seam along rail axial direction.
Before preheating and soldering operation, needs to treat before soldering groove-shape rail carries out and polish to remove dust, crackle etc.;Making
After the completion of industry, the shape of polishing guarantee rail after being carried out to soldering position is needed.In addition, when equipment one section of groove-shape rail of completion
Preheating with after soldering operation, when operation if you need to carry out another station track, it is only necessary to whole set equipment direction be rotated 180 degree, then instead
To walking dolly.
As shown in Figures 4 and 5, to ensure the stabilization of preheating and the position of soldering, the left and right shake up and down not with carriage walking,
Devise welding gun and induction coil guide clamping mechanism 7.Walking steamboat 14 is designed as groove profile rail arc shape, and pacifies in its side
There is spring 21 to provide certain side-thrust, ensures that horizontal direction is fitted closely with rail when its walking.In addition rely on entire welding gun and
The dead weight of induction coil guide clamping mechanism 7 ensures that vertical direction is fitted closely with rail when walking steamboat 14 is walked.
Two walking steamboats 14, welding gun holding frame 9 and load coil 8 are fixed on insulated mounting plate 13, with track
There is certain degree of freedom in 5 level of trolley and upper and lower directions.When there is slight shake in small rail car 5, steamboat 14 of walking
Welding gun holding frame 9 and load coil 8 will be driven to carry out self-control on the basis of the groove cambered surface of groove-shape rail, ensured
The stability of preheating and soldering position.
In entire operation process, induction coil is fixed on track with water cooled welding torch by matched guide clamping mechanism
The side of trolley, the two standoff distance are adjustable.But under same process conditions, the spacing of the two will immobilize.In addition,
Guide clamping mechanism relies on its directive wheel and spring during carriage walking, come ensure in operation process welding gun and heating coil with
Groove-shape rail position to be welded is relatively fixed.
It is an advantage of the current invention that the mode as a result of Medium frequency induction electric preheating carries out groove-shape rail rail head preheating,
In the case where technological parameter is the same, wait for that the heating temperature at soldering position is highly stable, multiplicity is high.The resurfacing of rail is repaiied
Multiple, the height of preheating temperature directly affects the success or failure of Repair Welding.Therefore, it can greatly be carried by way of electric induction preheating
The quality of high resurfacing of rail reparation.For groove-shape rail soldering, track defect type is mainly track small curve radius portion
The rail head side grinding of position, disposably waits for that soldering position is long.Therefore, the pre- heat channel of disposable long range in orbit by carriage walking
Shaped steel rail, operating efficiency are much higher than traditional preheating method.
By the design of welding gun and induction coil guide clamping mechanism, ensure that in track carriage walking, welding gun and sense
Answer heating coil that can stablize preheating and soldering groove-shape rail fixation cambered surface.
Finally it should be noted that above example only to technical scheme of the present invention is described rather than to this technology method
It is limited, the present invention can above extend to other modifications, variation, application and embodiment, and therefore, it is considered that institute in application
There are such modification, variation, application, embodiment all within the scope of the spirit or teaching of the present invention.