CN202053016U - Steel rail flash welding machine and container-type steel rail flash welding device - Google Patents
Steel rail flash welding machine and container-type steel rail flash welding device Download PDFInfo
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- CN202053016U CN202053016U CN 201020650427 CN201020650427U CN202053016U CN 202053016 U CN202053016 U CN 202053016U CN 201020650427 CN201020650427 CN 201020650427 CN 201020650427 U CN201020650427 U CN 201020650427U CN 202053016 U CN202053016 U CN 202053016U
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Abstract
The utility model provides a steel rail flash welding machine including fulcrums installed thereon, at least two steel rail clamping mechanisms installed on the corresponding fulcrums, a flash welding transformer and an upsetting actuation mechanism. Each steel rail clamping mechanism comprises an operation mechanism of a control rod capable of vertically applying force or actuating; two lever structures capable of pivoting about the fulcrums, the lower end of each lever structure being provided with a steel rail capable of being loosened or tightened; and two connecting rod members. One end of each connecting rod member is pivotally connected to a common first pivot point on the control rod, and the other end of each connecting rod member is pivotally connected to either a second pivot point or a third pivot point on relative lever structures, wherein the second pivot point or the third pivot point is lower than the first pivot point. The control rod is configured to vertically apply force onto or actuate the connecting rod members so as to loosen or tighten the steel rails on the lower ends of the lever structures. The utility model also provides a container-type steel rail flash welding device employing the steel rail flash welding machine.
Description
Technical field
The utility model relates to the flash welding in rail field, specifically relates to a kind of steel rail flash welding machine.In addition, the utility model also relates to a kind of container-type rail flash soldering equipment with steel rail flash welding machine.
Background technology
The gapless track of railway forms by the multistage rail welding mostly.Rail welding is divided into factory's welding or on-the-spot (on the line) welding usually.Usually there are four types for the scene welding, i.e. flash welding, gas pressure welding, exothermic welding and narrow gap arc welding.Wherein, the quality of portable flash welding welded rails is the most stable, therefore, has become the main means of on-the-spot rail welding at present.
The flash welding basic principle is to make the termination short circuit heating of two sections rail of splicing, then by the time they when being heated to uniform temperature by making these softening terminations draw be close together (upset) to finish welding rapidly.And after finishing welding, also have usually and push away protruding (removing metal oxide and the formed exoncoma of upset) step.Therefore, steel rail flash welding machine generally includes the clamp mechanism that clamps two sections rail, is used to make transformer, the upset actuation mechanism of steel rail ends heating and optionally push away protruding mechanism.
For example for long rail being welded or guarantees the quality of flash welding, clamp mechanism is necessary to the good clamping of rail.For the clamping (clamping) that improves flash welder thus power and also improve the upset effect, China invention ZL98106266.0 provide a kind of flash-butt welding rail welder, it comprises two pincerlike clamping devices that respectively have two double armed lever forms, and clamping device has a common axle and insulated from each other.Can relatively move along axle by two flash welding upset hydraulic cylinders, two clamping devices.Two welding transformers are installed in the hollow double armed lever of one of pincerlike chuck.Clamping device has horizontally disposed clamping hydraulic cylinder, its working piston is fixed with the upper end of an armed lever wherein, the upper end of its cylinder body and another armed lever is fixed, and working piston is as the hydraulic intensifier cylinder body, thereby in this cylinder body (working piston) piston and plunger are installed, the area of piston and plunger is than the pressure increment corresponding to working piston.Thereby constituted additional hydraulic intensifier.Thereby when working piston extends, thereby the clamping hydraulic cylinder applies force to armed lever to apply lever force by the armed lever that is the lever form to rail clamping rail under normal pressure; And after working piston elongation, booster works, and the clamping hydraulic cylinder makes double armed lever open (or trending towards opening) with the active force that increases, thus with the chucking power that increases with rail " clampings ", so improved the clamping effect.
Yet; such flash welder has tangible drawback; when its steel rail clamping device adopted booster to guarantee that chucking power is enough to requiring of satisfied welding upset, the oil pressure of clamping cylinder was very high in the time of can causing " clamping " usually, for example is generally two times of operate as normal oil pressure.Therefore, each parts of this oil cylinder especially seal damage easily.In case seal damages or sealing effectiveness descends and cause the clamping cylinder leakage of oil, to cause the increased pressure in the oil cylinder significantly to reduce, for example be reduced to the operate as normal oil pressure, thereby the clamping force of rail descends half (if the supercharging oil pressure is two times of normal oil pressure) approximately, this can have a strong impact on welding effect even welding can't normally be carried out, and especially causes upset to skid latter stage in welding.In addition, the structure of this clamping device and complicated operation, and thereby cause cost higher.And the hydraulic cylinder of lateral arrangement, and the clamp mechanism of prior art obtains bigger clamping force with expectation being provided with under the situation of booster still to wish to increase by the length of the lever arm of hydraulic cylinder effect, these factors have caused the structure of clamp mechanism of prior art welding machine compact inadequately, and floor space is big.
The normally portable flash welding of flash welding at the scene roughly can be divided into: container-type, highway/railway self-propelled and railway self-propelled.Wherein, container-type flash welding equipment is lower because of cost, the comparatively flexible and extensive use of advantage acquisition easily of transportation.Known a kind of dual container formula moves rail welding machine (Chinese utility model ZL200520078709.X), wherein generator and welding machine are divided in two containers, power distribution cabinet (electrical control cabinet), hydraulic power unit, swivel bearing, rotary oil cylinder are housed in the welding machine container, move supporting, mobile oil cylinder, lift cylinder and the arm that is hinged with it, arm connects with welding machine by suspension hook, be provided with clamping cylinder in the welding machine, can realize moving before and after welding machine is on flat car, lifting rotatablely moves.In this container-type flash welding equipment, hydraulic power unit and electrical control cubicles are in same compartment, because the serviceability temperature of hydraulic power unit is higher, sometimes more than 60 degree, the noise of adding pumping plant is very big, and the electric elements in the electrical control cabinet are had a negative impact, and its arm is non-telescoping, when welding on the line, when being put into the position to be welded of rail, welding machine is difficult to rail is aimed at, because arm can not carry out regulating longitudinally along rail.
Summary of the invention
Therefore, task of the present utility model provide a kind of simple in structure, big relatively chucking power can be provided under relatively little being used as power and the steel rail flash welding machine of structure relative compact under the situation of the chucking power suitable with prior art is being provided.
This purpose realizes by such steel rail flash welding machine, it comprises the fulcrum that is installed on this welding machine, be installed at least two rail clamp mechanism on the corresponding fulcrum, the flash welding transformer and by in described at least two the rail clamp mechanism of start at least one make clamped rail the termination near the upset actuation mechanism.Each rail clamp mechanism comprises: the operating mechanism with control stick of the application of force vertically or start; Around pivotable two lever constructions of described fulcrum, the lower end of each lever construction is configured to unclamp or to clamp rail; With two link members, one end of each link member pivots and connects the first common pivotal point on the control stick, the other end pivots respectively and connects in the second and the 3rd low pivotal point of ratio first pivotal point on the corresponding lever construction one, wherein, this control stick unclamp for the lower end that makes described lever construction or clamp rail and be configured to vertically the application of force to or the described link member of start.
The other end of link member can be connected on the lever construction on any appropriate point, as long as link member can apply lever force to rail by this lever construction at this some place.Yet, the upper end (top) that this second or the 3rd pivotal point is preferably placed at lever construction locate or near.
Saved booster according to steel rail flash welding machine of the present utility model, and control stick by the vertical application of force or effect and incline link part make operating mechanism provide to provide the close rail clamping force of mechanism of using booster under the pressure condition close with routine work pressure, thereby each parts need not to work under the situation that pressure increases, and can have long relatively service life.But also has the advantage of compact conformation.
According to preferred embodiment of the present utility model, described operating mechanism also comprises the hydraulic cylinder fixing with respect to described fulcrum, and described control stick is included in the piston rod of vertical start in the described hydraulic cylinder.Hydraulic cylinder of the present utility model has also reduced the risk of leaking owing to the hydraulic fluid that uses booster to cause.
Described upset actuation mechanism preferably includes the upset hydraulic cylinder.The upset actuation mechanism is well known in the art, and therefore no longer is described in detail.
Preferably, described two lever constructions and/or two link members are symmetrical about control stick, thereby the clamping force on both sides is applied on the rail equably.In the structure like this of rail clamping structure, second pivotal point is the same with the height of the 3rd pivotal point.
Preferably, but described at least two rail clamp mechanism comprise can not be along the quiet rail clamp mechanism of fulcrum axially-movable and the moving rail clamp mechanism of axially-movable, described upset actuation mechanism be configured to start should moving rail clamp mechanism so that by the rail that should moving rail clamp mechanism clamps near to the rail that is clamped by quiet rail clamp mechanism.
Preferably, described at least two rail clamp mechanism are installed on the common fulcrum.
According to a particularly preferred embodiment, this welding machine also comprises and pushes away protruding mechanism, describedly push away protruding mechanism and comprise the protruding actuation mechanism that pushes away around pushing convex knife, the knife rest that pushing convex knife is installed on it and this knife rest of start of rail periphery, wherein said knife rest has the vertical projection towards the pushing convex knife opposition side, this pushes away protruding mechanism and also has the guide frame that is fixed to this welding machine, and described vertical projection pushes away protruding actuation mechanism by this and guided to lengthwise movement in described guide frame.Push away protruding mechanism by in welding machine, being provided with, can need not after the welding machine removal clamps, to push away again protruding.
In the art, the principle of flash welding transformer and position are known, and the application's flash welding transformer comprises any type that can be used as the flash welding transformer.Yet, according to preferred embodiment of the utility model, described flash welding transformer comprises the transformer secondary output with two secondary terminals and at least one secondary coil, in described two secondary terminals one has the ingate and another has outlet opening, and described at least one secondary coil has the hollow U-shaped that limits the cooling duct that is communicated with this ingate and this outlet opening.The type of cooling of welding transformer is the type of cooling that circular cooling water pipe detours round the edge of transformer secondary output U-shaped copper bar in the documents, and the hollow U-shaped transformer secondary output of band of the present utility model cooling duct has good thermal diffusivity.
In addition, the utility model also provides a kind of container-type rail flash soldering equipment, it comprises casing, according to steel rail flash welding machine of the present utility model, the loop wheel machine of this steel rail flash welding machine is used to sling, electrical control gear, hydraulic power unit, cooling fluid generator and power supply, wherein said casing has first separate space that communicates with external environment that holds described steel rail flash welding machine and described loop wheel machine by being separated out between partition wall, hold described hydraulic power unit, second separate space of cooling fluid generator and power supply, with the 3rd separate space of keeping apart with described first and second separate spaces that holds described electrical control gear, described the 3rd separate space is equiped with temperature-adjusting device.Container-type rail flash soldering equipment of the present utility model compared with prior art can reduce the influence that electrical control gear is subjected to temperature and environmental noise effectively.
Preferably, described loop wheel machine has lower bearing bracket, slew gear, can and be installed in derricking gear on the upper spider around the upper spider of vertical pivot center rotation by slew gear, wherein said derricking gear comprise can around arm that horizontal rotation axis rotate, this arm of start around arm hydraulic cylinder that horizontal rotation axis is rotated, be arranged on this arm the telescopic arm that can stretch along described arm longitudinally and the telescopic hydraulic cylinder of this telescopic arm of start.When this helps that welding machine is put into the position to be welded of rail rail is aimed at.
Advantageously, container-type rail flash soldering equipment also is provided with the steel rail weld joint annealing device.
Description of drawings
Below, describe embodiment of the present utility model in conjunction with the accompanying drawings in detail, wherein:
Fig. 1 shows first embodiment according to rail clamp mechanism of the present utility model;
Fig. 2 shows the embodiment according to steel rail flash welding machine of the present utility model;
Fig. 3 shows the embodiment who pushes away protruding mechanism according to steel rail flash welding machine of the present utility model;
Fig. 4 a and b show an embodiment according to transformer secondary output of the present utility model;
Fig. 4 c shows an embodiment according to the coil of transformer secondary output of the present utility model;
Fig. 5 shows an embodiment according to loop wheel machine of the present utility model;
Fig. 6 shows an embodiment according to container-type rail flash soldering equipment of the present utility model;
Fig. 7 shows the schematic diagram according to electrical control of the present utility model;
Fig. 8 shows the embodiment according to the annealing device of rail flash soldering equipment of the present utility model;
Fig. 9 shows second embodiment according to rail clamp mechanism of the present utility model.
The specific embodiment
Now totally with reference to Fig. 1 and 2, show a kind of steel rail flash welding machine, it comprises at least one fulcrum 101 of being installed on this welding machine, is installed at least two rail clamp mechanism 100 on the corresponding fulcrum, the flash welding transformer and by at least two rail clamp mechanism of start at least one make clamped rail the termination near upset actuation mechanism (being upset hydraulic cylinder 25) at this.These at least two rail clamp mechanism 100 can be installed on the common fulcrum, to help the aligning of rail.Certainly these two rail clamp mechanism also can be installed in respectively on two different fulcrums.But the steel rail flash welding machine structure of illustrated embodiment adopts the moving rail clamp mechanism 22 of a quiet rail clamp mechanism 24 and an axially-movable.Alternatively, can adopt two can be close to each other moving rail clamp mechanism.As shown in Figure 2, go to the cylinder body topping up hydraulic fluid of moving rail clamp mechanism hydraulic cylinder 21 and quiet rail clamp mechanism hydraulic cylinder 23 in welding, but the jaw on the moving rail clamp mechanism 22 of quiet rail clamp mechanism 24 and axially-movable is opened, rail is stretched into jaw.Again above-mentioned hydraulic cylinder is oppositely started, until clamping the rail web of the rail.Start upset hydraulic cylinder 25, adjust rail gap between the termination of rail to be welded, make it arrive best position.Start the welding switch, welding begins automatically.Behind the upset (termination that makes clamped rail suddenly near), clamp mechanism continues clamping, and to keep rail to be in the lock state be that displacement is constant.At this moment, can push away protruding (deburring) with pushing convex knife 14.When the welding point temperature drops to can bear extraneous rail pulling force the time, clamp mechanism is unclamped, finish welding.With the steel rail weld joint annealing device joint of postwelding is heat-treated alternatively.
Now forward Fig. 1 to, but the above-mentioned quiet rail clamp mechanism 24 and the moving rail clamp mechanism 22 of axially-movable can be rail clamp mechanism 100 as shown in Figure 1.Rail clamp mechanism 100 is installed on this fulcrum 101.This flash welder for example can be the welding machine in the container-type flash welding equipment, thereby welding machine is being hung by loop wheel machine when welding, and perhaps welding machine also can be fixed on the ground.In the embodiment shown in fig. 1, rail clamp mechanism 100 comprises the operating mechanism (being the hydraulic cylinder 3 of rail clamp mechanism at this) of vertical layout.This hydraulic cylinder 3 have with the fixing hydraulic cylinder 5 of fulcrum 101 and can relative this cylinder body the piston rod 4 of the application of force or start vertically.Can expect that fulcrum 101 and hydraulic cylinder 5 also can be installed on the identical or different fixed part of welding machine.As shown in Figure 1, clamp mechanism 100 has around described fulcrum 101 pivotable first lever construction 1 and second lever constructions 2.This first and second lever construction about fulcrum or piston rod 4 be symmetry and be set to and can jointly clamp rail 9.Two shown lever constructions lay respectively at fulcrum 101 both sides be configured to jaw type, and connect fulcrums 101 by lever construction connecting rod 8.In the embodiment shown in fig. 1, connecting rod 8 fulcrums 101 places are downward-sloping outwardly.The lower end of lever construction has clamp clip and conductive structure, and these are known to those skilled in the art.Pivot respectively on the top of first and second lever constructions (second pivotal point 103 and the 3rd pivotal point 104) and to be connected first connecting rod spare 6 and second connecting rod spare 7.The other end of first connecting rod spare 6 and second connecting rod spare 7 pivots and is connected to piston rod top end or near the first common pivotal point 102.Thereby first and second link members are high together about piston rod 4 second, third pivotal points of symmetry as shown in the figure.And thereby first pivotal point forms the link member inclined angle alpha than the second and the 3rd pivotal point height link member and horizontal direction.
Right side structure with rail clamp mechanism shown in Figure 1 is the process that the example explanation clamps rail below.In the time will clamping rail, make piston rod 4 move downward drive first pivotal point 102 and move downward, make (right side) motion outwardly of the 3rd pivotal point 104 by second connecting rod spare 7.Along with first pivotal point moves right with the 3rd pivotal point downwards, the link member inclined angle alpha reduces.And second lever construction 2 is subjected to the constraint of fulcrum 101 to make lever construction connecting rod 8 can only turn clockwise when the 3rd pivotal point moves right.Clamping rail when second lever construction 2 (first lever construction 1 simultaneously) contact rail 9, and then clamp.The inventor finds that the size of clamping force depends on three aspects: the one, and the pulling force that hydraulic cylinder applied; Two is the 3rd pivotal point 104 (second pivotal point 103) distances and the ratio of fulcrum 101 to the distance at rail clamping position to fulcrum 101; The 3rd, the link member inclined angle alpha between link member and the horizontal direction.Thereby, thereby can under providing the pressure condition close with routine work pressure, operating mechanism provide the close rail clamping force of device of using booster according to the control stick and the incline link part of clamp mechanism of the present utility model by the vertical application of force or effect, thereby its each parts need not to work under the situation that pressure increases, and can have long relatively service life.And by this arrangement, clamp mechanism of the present utility model can provide the structure that has relative compact under the situation of the clamping force suitable with prior art.In addition, simple in structure according to clamp mechanism of the present utility model.And embodiment shown in Figure 1 can provide clamping force with the deadweight that makes full use of piston rod when clamping.Preferably, the link member inclination angle in the time of can designing rail clamp mechanism clamping rail less than 2 o'clock in the lever ratio of lever construction is so that clamping force is at least more than the twice of hydraulic cylinder applied force.
Refer now to Fig. 9, show another embodiment 100 ' according to clamp mechanism of the present utility model.The structure of this embodiment structure is with embodiment illustrated in fig. 1 similar, except first lever construction 1 ' and second lever construction 2 ' are similar to the scissors form with respect to fulcrum 101 '.As shown in the figure, the embodiment of Fig. 9 is symmetrical about fulcrum and control stick also.Especially, two lever constructions part (also can be called upper lever arm) and two link members 6 ' and 7 ' more than fulcrum is configured to diamond structure, and fulcrum 101 ', the first pivotal point, 102 ', the second pivotal point 103 ' and the 3rd pivotal point 104 ' are 4 end points of this diamond structure.In the time will clamping rail 9, piston rod is moved upward drive first pivotal point 102 ' to move upward, this makes above-mentioned rhombus become more flat (promptly making the link member inclination angle become big).And lever construction is subjected to the constraint of fulcrum 101 to make lever construction rotate with the clamping rail, and then clamps this rail.
As shown in Figure 3, this welding machine also comprises and pushes away protruding mechanism, describedly pushes away protruding mechanism and comprises and push away protruding actuation mechanism (at this for pushing away protruding hydraulic cylinder 10) around pushing convex knife 14, the knife rest 13 that pushing convex knife is installed on it and this knife rest of start of rail periphery.Wherein, knife rest 13 has vertical (promptly along the rail longitudinally) projection towards pushing convex knife 14 opposition sides.This pushes away protruding mechanism and also has the guide frame 12 that is fixed on the welding machine.Described vertical projection is guided to lengthwise movement in described guide frame under the effect of the piston rod 11 that pushes away protruding hydraulic cylinder.As shown in Figure 2, just finish when welding, exoncoma 15 (burr) part of joint also is in the condition of high temperature (this moment, clamp mechanism was still gripped rail), starts this moment to push away protruding hydraulic cylinder 10, thereby its piston rod 11 is moved right, drive pushing convex knife frame 13 and pushing convex knife 14 and move right.Skim over joint exoncoma (burr) 15 along with pushing convex knife moves right, exoncoma is cut away, it is protruding so just to finish pushing away of welding point.Because the reaction force that pushing convex knife 14 is received derives from the welding point exoncoma of rail, it totally is positioned at the close center line position of pushing convex knife, and therefore, pushing convex knife is easy to generate the bending of C shape.By on knife rest 13, being provided with towards vertical projection of pushing convex knife 14 opposition sides as shown in figure, and make that vertically projection is moved in guide frame 12 with being tied, thereby reduce even avoid the C shape bending of pushing convex knife significantly, also prevented the pushing convex knife rotation.
The flash welding transformer comprises transformer secondary output, existing transformer secondary output cooling is for example by detouring with the appearance of circular cooling water pipe round each the parallel copper transformer secondary output coil that takes the shape of the letter U, adopt brazing mode to be connected between cooling water pipe and each secondary coil, this heat transmission that causes cooling off between contact area limited and cooling water and the secondary coil also will be through the transmission again of cooling water pipe, and cooling effect is not good.Show according to flash welding transformer secondary output of the present utility model as Fig. 4 a-c.Shown in Fig. 4 a and b, transformer secondary output comprises having two secondary terminals 17 and be arranged in parallel and be connected respectively to two secondary coils 16 of described two secondary terminals at two ends.What can expect is, transformer secondary output can have at least one secondary coil, but more secondary coil (more than 2) also is possible.These two 17 1 of secondary terminals are positive terminal, and another is a negative terminals.According to transformer secondary output of the present utility model aspect the basic function with the conventional secondary too big difference that there is no, the difference place only is the cooling of transformer secondary output.Therefore, do not do detailed description for the function and the working method of transformer secondary output at this.Now forward Fig. 4 c to, secondary coil 16 has the hollow U-shaped that limits cooling duct 20.Again with reference to figure 4a and b, one has ingate 18 and another has outlet opening 19 in two secondary terminals 17, said ingate and outlet opening all are communicated with cooling duct 20, do not limit ingate and outlet opening in which terminals and the position in the terminals at this, only otherwise influencing terminals got final product with being connected of power supply or other electric component.Shown in Fig. 4 a-c, can see by terminals being connected respectively to the two ends of U-shaped coil, can in transformer secondary output, be formed for the flow path that totally takes the shape of the letter U that cooling fluid comes out from outlet opening again from the ingate to the cooling duct for each U-shaped coil.And ingate as shown in the figure and outlet opening all are communicated with respectively with cooling duct in each secondary coil.Can expect that a plurality of ingates and/or a plurality of outlet opening can be set respectively, and for example each ingate and/or each outlet opening only are exclusively used in the cooling duct in each coil in terminals.Not only improved the cooling effectiveness of transformer secondary output by this setup, made that also the occupation of land of transformer secondary output is littler and reduce the difficulty (saved and twined secondary cold water pipe) of producing.
Fig. 7 has described the example according to the electric control method of the embodiment of steel rail flash welding machine of the present utility model, wherein can adopt host computer 42 (industrial computer) that welding parameter is set and input to slave computer 43 (Programmable Logic Controller), slave computer is controlled the action of this flash welder during welding.Before the welding, at first welding condition is imported host computer, by host computer and slave computer communication, welding condition 420 is inputed to slave computer 43 again.During welding, start the performing a programme in the slave computer, to welding machine hydraulic valve 46, hydraulic power 440 inputs to the corresponding component of flash welder 49 on request to move on request by output hydraulic control signal 460; Simultaneously, slave computer 43 is gone back output voltage control signal 430 to IGCT 48, the size of the conducting amount control weldingvoltage 480 by the control IGCT, IGCT inputs to the flash welding transformer by power supply 45 with electricity, makes the flash welding transformer export needed voltage.The corresponding component of welding machine also is input to slave computer 43 by welding machine sensor 47 (as voltage, electric current and pressure) with signal 470 when carrying out signals of underlying computer, slave computer 43 inputs to host computer 42 after with signal digitalized processing.The signal that host computer 42 receives slave computer 43 is drawn out welding procedure curve 421.Thereby this welding process is automation.
Fig. 6 shows according to container-type rail flash soldering equipment of the present utility model, comprise according to steel rail flash welding machine of the present utility model, loop wheel machine, electrical control gear, hydraulic power unit, cooling fluid generator and the power supply of this steel rail flash welding machine that is used to sling, these parts all use square frame schematically illustrated in Fig. 6.This flash welding equipment also comprises the casing 35 with first partition wall 36 and second partition wall 37.Be separated out the 3rd separate space 40 of keeping apart with described first and second separate spaces that holds first separate space 38 steel rail flash welding machine and loop wheel machine, that communicate with external environment, holds second separate space 39 of hydraulic power unit, cooling fluid generator and power supply and hold described electrical control gear by this first partition wall and second partition wall.Be equiped with temperature-adjusting device 41 in the 3rd separate space 40.When flash welder was worked, flash welder and loop wheel machine are in the outdoor environment, and be influenced by ambient temperature.On the other hand, the flue dust in the welding process is bigger.In addition, for example hydraulic power unit temperature height and noise and vibrations are bigger.Above factor is very disadvantageous to electric control system.Therefore be favourable by being provided with that first partition wall and second partition wall keep apart electrical control gear and other parts; and by the temperature that temperature-adjusting device more helps regulating electrical control gear is set in the 3rd separate space, helping protecting electrical control gear is its electrical equipment.
Fig. 5 shows a kind of loop wheel machine of this steel rail flash welding machine that is used to sling.Described loop wheel machine 26 has lower bearing bracket 34, slew gear 33, can and be installed in derricking gear on the upper spider around the upper spider (not shown) of vertical pivot center rotation by slew gear 33.Wherein said derricking gear comprise can around arm 30 that horizontal rotation axis is rotated, this arm of start around arm hydraulic cylinder 32 that horizontal rotation axis is rotated, being arranged on this arm can be along the flexible telescopic arm 28 of described arm longitudinally and the telescopic hydraulic cylinder 29 of this telescopic arm of start.In the time will carrying out flash welding, flash welder hang on sprocket wheel 27 below, the piston rod elongation of arm hydraulic cylinder 32, and by the position that elongates or shortens the fine tuning horizontal direction of rail (for example) flash welder of telescopic arm 28, this has remarkable improvement than the prior art loop wheel machine that telescopic arm is not set.After welding finished, side arm oil cylinder 32 shrank, and arm 30 turns clockwise around horizontal rotation axis, thereby flash welder can be placed on the welding machine platform 31.
Preferably, container-type flash welding in rail equipment configuration has the steel rail weld joint annealing device.Fig. 8 shows a kind of steel rail weld joint annealing device 50, the welding and push away protruding after, this annealing device 50 is positioned over the steel rail weld joint place, connect combustion gas, light flame, starting switch, its slide rail of the driver drives of this annealing device 50 is swung (sliding along slide rail) thereby is driven the heater swing at this moment, makes welding point evenly be heated.Shown annealing device 50 has adopted no water-cooled mode, and the light and combustion gas of structure for example can be adopted liquefied petroleum gas or propane, and is safe and reliable.Can certainly be by manner known in the art as heat treated heating source.The detailed description of this kind annealing device can be referring to Chinese patent application 200910242839.5, and this application is included this paper by reference in.Perhaps, also can be equipped with any other suitable known steel rail weld joint annealing devices according to container-type rail flash soldering equipment of the present utility model.
Rail process with container-type rail flash soldering equipment welding of the present utility model is: power supply provides electric current, start the loop wheel machine of welding machine, with flash welder as for rail to be welded place, open flash welder, start host computer, welding condition is imported in the Programmable Logic Controller of welding machine, the welding machine jaw is opened in operation, clamps rail on the card behind the rail.After clamping rail, welding machine is adjusted to welded condition begin welding, will finish whole welding process automatically then.Welding process comprises unstable flash of light, stable flash of light, quickens flash of light, upset and push away protruding (removal burr), regains flash welder.When treating that the steel rail weld joint temperature is reduced to below 500 °, the welding point annealing device is placed on the joint heat-treats.
Preferred embodiment of the present utility model has more than been described, but those skilled in the art can carry out suitable distortion, modification and combination and not deviate from the utility model the foregoing description, the utility model scope by following claims and be equal to the institute contain.
Claims (10)
1. steel rail flash welding machine, it comprises the fulcrum that is installed on this welding machine, be installed at least two rail clamp mechanism on the corresponding fulcrum, the flash welding transformer and by in described at least two the rail clamp mechanism of start at least one make clamped rail the termination near the upset actuation mechanism
It is characterized in that each rail clamp mechanism comprises:
Operating mechanism with control stick of the application of force vertically or start;
Around pivotable two lever constructions of described fulcrum, the lower end of described two lever constructions is configured to unclamp or to clamp rail; With
Two link members, one end of each link member pivots and connects the first common pivotal point on the control stick, the other end pivots respectively and connects in the second and the 3rd low pivotal point of ratio first pivotal point on the corresponding lever construction one, wherein, this control stick unclamp for the lower end that makes described lever construction or clamp rail and be configured to vertically the application of force to or the described link member of start.
2. steel rail flash welding machine according to claim 1 is characterized in that, described operating mechanism also comprises the hydraulic cylinder fixing with respect to described fulcrum, and described control stick is the piston rod form of vertical start in described hydraulic cylinder.
3. steel rail flash welding machine according to claim 1 and 2 is characterized in that, described two lever constructions and/or two link members are symmetrical about described control stick.
4. steel rail flash welding machine according to claim 1 and 2, it is characterized in that, but described at least two rail clamp mechanism comprise can not be along the quiet rail clamp mechanism of fulcrum axially-movable and the moving rail clamp mechanism of axially-movable, described upset actuation mechanism be configured to start should moving rail clamp mechanism so that by the rail that should moving rail clamp mechanism clamps near to the rail that is clamped by quiet rail clamp mechanism.
5. steel rail flash welding machine according to claim 1 and 2 is characterized in that, described at least two rail clamp mechanism are installed on the common fulcrum.
6. steel rail flash welding machine according to claim 1 and 2, it is characterized in that, this flash welder also comprises and pushes away protruding mechanism, describedly push away protruding mechanism and comprise the protruding actuation mechanism that pushes away around pushing convex knife, the knife rest that pushing convex knife is installed on it and this knife rest of start of rail periphery, wherein said knife rest has the vertical projection towards the pushing convex knife opposition side, this pushes away protruding mechanism and also has the guide frame that is fixed on this welding machine, and wherein, described vertical projection can be guided to lengthwise movement in described guide frame.
7. steel rail flash welding machine according to claim 1 and 2, it is characterized in that, described flash welding transformer comprises the transformer secondary output with two secondary terminals and at least one secondary coil, in described two secondary terminals one has the ingate and another has outlet opening, and described at least one secondary coil has the hollow U-shaped that limits the cooling duct that is communicated with this ingate and this outlet opening.
8. container-type rail flash soldering equipment, it is characterized in that, it comprises casing, according to each described steel rail flash welding machine in the claim 1 to 7, loop wheel machine, electrical control gear, hydraulic power unit, cooling fluid generator and the power supply of this steel rail flash welding machine that is used to sling, wherein said casing has first separate space that communicates with external environment that holds described steel rail flash welding machine and described loop wheel machine by being separated out between partition wall; Second separate space that holds described hydraulic power unit, cooling fluid generator and power supply; And holding the 3rd separate space between described first and second separate spaces of described electrical control gear, described the 3rd separate space is equiped with temperature-adjusting device.
9. container-type rail flash soldering equipment according to claim 8, described loop wheel machine has lower bearing bracket, slew gear, can and be installed in derricking gear on the upper spider around the upper spider of vertical pivot center rotation by slew gear, wherein said derricking gear comprise can around arm that horizontal rotation axis rotate, this arm of start around arm hydraulic cylinder that horizontal rotation axis is rotated, be arranged on this arm the telescopic arm that can stretch along described arm longitudinally and the telescopic hydraulic cylinder of this telescopic arm of start.
10. according to Claim 8 or 9 described container-type rail flash soldering equipments, it is characterized in that, also be equipped with the steel rail weld joint annealing device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020650427 CN202053016U (en) | 2010-12-03 | 2010-12-03 | Steel rail flash welding machine and container-type steel rail flash welding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020650427 CN202053016U (en) | 2010-12-03 | 2010-12-03 | Steel rail flash welding machine and container-type steel rail flash welding device |
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| CN202053016U true CN202053016U (en) | 2011-11-30 |
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| CN 201020650427 Expired - Fee Related CN202053016U (en) | 2010-12-03 | 2010-12-03 | Steel rail flash welding machine and container-type steel rail flash welding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049602A (en) * | 2010-12-03 | 2011-05-11 | 中国铁道科学研究院金属及化学研究所 | Steel rail flash welding machine and container type steel rail flash welding equipment |
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2010
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049602A (en) * | 2010-12-03 | 2011-05-11 | 中国铁道科学研究院金属及化学研究所 | Steel rail flash welding machine and container type steel rail flash welding equipment |
| CN102049602B (en) * | 2010-12-03 | 2013-03-27 | 中国铁道科学研究院金属及化学研究所 | Steel rail flash welding machine and container type steel rail flash welding equipment |
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Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Co-patentee after: Changzhou Huatong Welding Industry Co., Ltd. Patentee after: Railway Scientific Research Academy Metal And Chemical Research Institute Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Co-patentee before: Changzhou Huatong Welding Wire Co., Ltd. Patentee before: Railway Scientific Research Academy Metal And Chemical Research Institute |
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Granted publication date: 20111130 Termination date: 20141203 |
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