CN101602138B - Steel rail flash welding machine - Google Patents
Steel rail flash welding machine Download PDFInfo
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- CN101602138B CN101602138B CN 200910182212 CN200910182212A CN101602138B CN 101602138 B CN101602138 B CN 101602138B CN 200910182212 CN200910182212 CN 200910182212 CN 200910182212 A CN200910182212 A CN 200910182212A CN 101602138 B CN101602138 B CN 101602138B
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- 238000003466 welding Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 14
- 241000002163 Mesapamea fractilinea Species 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 95
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 230000008685 targeting Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004801 process automation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention discloses a steel rail flash welding machine, which comprises a first pair of box body, a second pair of box body, a central shaft, a clamping oil cylinder, an upsetting oil cylinder, a knob removing device and a welding transformer, wherein the clamping oil cylinder comprises a cylinder body, a piston, a piston rod, a piston rod end connecting piece and an end cover; the cylinder body is divided into a first cavity and a second cavity; the inside of the piston rod is provided with a supercharged piston; the inner cavity of the piston rod is divided into a third cavity and a fourth cavity; the end part of the cylinder body is provided with a first oil line and a second oil line and is connected with a hydraulic integrated block provided with an electromagnetic reversing valve, a pilot reducing valve and a hydraulic control one-way valve; and the periphery of an oil conduit at least forms a segment of sliding fit with the through hole of the supercharged piston. The steel rail flash welding machine is large in clamping force, simple and reasonable in structure, facilitates the control of the output clamping force and is suitable for welding steel rails with different lengths and weights.
Description
Technical field
The present invention relates to a kind of flash-butt welding equipment, particularly steel rail flash welding machine.
Background technology
Domestic existing steel rail flash welding machine because clamping force is not enough, can only weld the long rail string below 100 meters at present, can not satisfy welding 500 meters or longer long rail string and the needs that lock weldering.Chinese patent application number is that 98106266.0 application documents discloses a kind of flash butt welding rail welder, it comprises the pincerlike clamping device of two double armed lever forms and is assemblied on the common mandrel, both are insulated from each other and can relatively move along above-mentioned mandrel by two upset hydraulic cylinders that connect them, one end of each double armed lever is hinged on the piston rod of clamping hydraulic cylinder, disposes on the other end to clamp long pawl and conduction claw; Two welding transformers are installed in the hollow double armed lever of one of two pincerlike clamping devices, utilize the conduction bonding jumper to be connected in the conduction claw by the current-carrying part of flash of light upset hydraulic cylinder piston rod.In the clamping cylinder piston rod hydraulic multiplier is housed; The upset oil cylinder is the tandem hydraulic jack, and two pistons separate with dividing plate, is installed on the same piston rod of each hydraulic jack.Though hydraulic multiplier wherein is housed in the clamping cylinder piston rod can reinforcement, its control valve is contained on the connector of tailpiece of the piston rod, complex structure, is difficult to make and maintenance; Because clamping cylinder is provided with special targeting part, feasible complex structure more, size and weight are big, make difficulty, and there is the risk of leakage of oil in targeting part.In addition, it can not control the output clamping force, is not easy to constructing operation.
Summary of the invention
The object of the present invention is to provide a kind of clamping force big and simple and reasonable for structure, be convenient to control the steel rail flash welding machine of output clamping force.
In order to achieve the above object, technical scheme of the present invention is: a kind of steel rail flash welding machine, comprise first pair of casing, second pair of casing, central shaft, clamping cylinder, the upset oil cylinder, push away knurl device and welding transformer, wherein first pair of casing and second pair of casing are contained in by hinge and constitute two pairs of pincerlike clamping devices on the common central shaft, clamping cylinder all is housed to drive first pair of casing and second pair of casing rotates around center shaft axis between the casing of every pair of pincerlike clamping device, the upset oil cylinder is housed to realize that two pairs of casings are along the relative motion of center shaft axis direction between first pair of casing and second pair of casing, two welding transformers are installed in the first pair of casing or the second pair of casing of one of two pairs of casings, welding transformer is electrically connected with the jaw of two pairs of pincerlike clamping devices, clamping cylinder comprises cylinder body, piston, piston rod, rod end coupling and end cap, the inner chamber of cylinder body is separated into first chamber and second chamber by piston, charged piston is housed in the piston rod, piston rod cavity is pressurized piston and is separated into the 3rd chamber and the 4th chamber, second chamber is communicated with by oil circuit with the 3rd chamber, has perforate on the piston, charged piston one end can pass and put in first chamber of cylinder body from the perforate of piston, charged piston has through hole, through hole is communicated with the 4th chamber of piston rod cavity, the end of cylinder body has first oil circuit and second oil circuit, and be connected with hydraulic manifold block, one end of first oil circuit and an end of second oil circuit are all towards hydraulic manifold block, solenoid directional control valve is housed on the hydraulic manifold block, guide's pressure-reducing valve and hydraulic control one-way valve, oil guide pipe is equipped with in the exit of the other end of first oil circuit, the projecting end of oil guide pipe passes the perforate of piston and enters in the through hole of charged piston and is communicated with the 4th chamber of piston rod cavity, the periphery of oil guide pipe and the through hole of charged piston keep one section sealed sliding movingly at least, the second oil circuit other end leads to first chamber of inner chamber of cylinder block, and second chamber of inner chamber of cylinder block is communicated with hydraulic manifold block by the 3rd oil circuit.
One end of described first oil circuit connects an end of first check valve on the hydraulic manifold block, guide's pressure-reducing valve in parallel on first check valve, the other end of first check valve connects the oil revolving end of solenoid directional control valve, the oil inlet end of solenoid directional control valve connects second check valve, and the pressure side of unloading of guide's pressure-reducing valve is communicated with the oil revolving end of solenoid directional control valve; One end of second oil circuit is communicated with the hydraulic control one-way valve on the hydraulic manifold block, and solenoid directional control valve is connected with the control oil circuit of hydraulic control one-way valve; The 3rd oil circuit is communicated with the fuel tank loop of hydraulic manifold block.
For charged piston being moved steadily and sealing reliably, also is fixed with interior cover near piston end in the described piston rod, the one section periphery of the piston rod part of charged piston and the endoporus sealed sliding of interior cover are movingly.
Stressed evenly and can eliminate the influence of rail tensile stress butt welded seam in order in pushing away the knurl process, to push away celectome, have pressurize and push away the knurl function, the described knurl device that pushes away comprises that two of being fixed on the first pair of casing or the second pair of casing push away knurl oil cylinder, two and push away celectome tool rest, top tool rest and push away celectome, two piston rod front ends that push away knurl oil cylinder load respectively push away the celectome tool rest, two push away the celectome tool rest and all are connected with the top tool rest, when pushing away knurl, push away the celectome back side and be resisted against the front that pushes away the celectome tool rest.
In order in pushing away the knurl process, not hurt rail itself, and can increase the service life that pushes away celectome greatly, the described celectome that pushes away comprises continuous left side cutter hub, top cutter hub, right side cutter hub and bottom cutter hub, the cutter hub that wherein is positioned at head end and tail end is provided with retaining mechanism, and described cutter hub is provided with cutting edge; In the time of in working order, described retaining mechanism makes the cutter hub that is positioned at head end and tail end interconnect locking, make the cross sectional shape of the cutting edge formation rail of described cutter hub, in left side cutter hub, top cutter hub, right side cutter hub and bottom cutter hub, be equipped with installing hole, resilient supporting unit be housed in installing hole and the keeper that part is stretched out the cutting edge of above-mentioned cutter hub is housed.
In order to have the common knurl function and easy to adjust that pushes away, simple and practical, be fitted with suspension type toolsetting mechanism on described second pair of casing, this toolsetting mechanism comprises a left side, right pull bar, support, spring, packing ring, fastening screw nut, a left side, right avertence heart worm gear, a left side, right worm screw, baffle plate and push away celectome, wherein left, right pull bar links to each other with the top cutter hub that pushes away celectome respectively, a left side, spring is passed through in the upper end of right pull bar, packing ring, fastening screw nut hangs on and is fixed on the support that hoisting axis puts, a left side, the worm gear end of right avertence heart worm gear is contained in second pair of casing lower end, a left side, the eccentric external part of right avertence heart worm gear hangs a left side that pushes away celectome respectively, the right side cutter hub, a left side, right avertence heart worm gear respectively with a left side, right worm engaging.
In order to increase the axial carrying capacity of central shaft, improve its bulk strength and rigidity simultaneously, described central shaft comprises mandrel, first insulation sleeve and axle sleeve, first insulation sleeve is sleeved on the rear end of mandrel, the rear portion of first insulation sleeve and mandrel all is arranged in the endoporus of axle sleeve, also be set with second insulation sleeve on the mandrel, and second insulation sleeve is contained in the front portion of the endoporus of axle sleeve, be injected with insulating materials in the cavity that constitutes by second insulation sleeve, first insulation sleeve, mandrel and axle sleeve, mandrel and axle sleeve are bonded together.
In order to save jaw material cost and reduction difficulty of processing, to improve its yield rate, the jaw of described pincerlike clamping device comprises a pair of non-conductive jaw and pair of conductive jaw, non-conductive jaw is fixedlyed connected with the jaw seat of casing one end, the conduction jaw is fixedlyed connected with the jaw seat of the casing other end, has water channel in the conduction jaw, on the conduction jaw water pipe head is housed, water pipe head communicates with water channel, on non-conductive jaw and the conduction jaw resiliency supported is housed all.
After adopting said structure, because the end of the cylinder body of clamping cylinder is connected with hydraulic manifold block, solenoid directional control valve, guide's pressure-reducing valve and hydraulic control one-way valve are housed on the hydraulic manifold block, therefore control valve is laid concentrated, simple in structure, the circuit design compactness, size is little, connect and change conveniently, be convenient to make and maintenance; Again because oil guide pipe is equipped with in the exit of the other end of first oil circuit, the projecting end of oil guide pipe passes the perforate of piston and enters in the through hole of charged piston and is communicated with the 4th chamber of piston rod cavity, the periphery of oil guide pipe and the through hole of charged piston keep one section sealed sliding movingly at least, therefore having cancelled application number is the special targeting part of clamping cylinder in 98106266.0 documents, and the subsidiary effect that oil cylinder stroke direction guiding is arranged of oil guide pipe of the present invention, oil guide pipe is located at cylinder interior, do not take the length space of oil cylinder, so structure of the present invention is simpler, compact, be convenient to make, eliminated the risk of leakage of oil; Also owing on the hydraulic manifold block solenoid directional control valve, guide's pressure-reducing valve and hydraulic control one-way valve are housed, therefore can realize Electromagnetic Control, make and clamp the reinforcement process automation, simultaneously by regulating the output oil pressure of guide's pressure-reducing valve, the input oil pressure of the inner chamber of control oil cylinder, the control boost pressure reaches the purpose of exporting adjustable clamping force, be convenient to constructing operation, can guarantee that clamping force is not subjected to the influence and the needs that adapt to the different rail length of clamping of jaw wearing and tearing.The present invention can adapt to the needs of the rail that picks up all lengths, weight, especially can weld 500 meters or longer rail, simultaneously can reduce the negative effect that too high supercharging causes, as: hydraulic fluid leak increases under the high pressure, and oil cylinder such as reduces service life at problem.
Description of drawings
The present invention is further detailed explanation below in conjunction with embodiment that accompanying drawing provides.
Fig. 1 is the structural representation of steel rail flash welding machine of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the cutaway view of Fig. 1 along the B-B line;
Fig. 4 is the cutaway view of Fig. 1 along the A-A line;
Fig. 5 is the structural representation of the clamping cylinder among the present invention, and promptly Fig. 2 is along the cutaway view of F-F line and Rotate 180 °;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the clamped condition figure of Fig. 5;
Fig. 8 is the reinforcement state diagram of Fig. 5;
Fig. 9 be clamping cylinder hydraulic pressure connection line figure;
Figure 10 is the structural representation that pushes away the knurl device among the present invention, and promptly Fig. 1 is along the cutaway view of D-D line;
Figure 11 is the structural representation that pushes away the celectome tool rest;
Figure 12 is the cutaway view of Figure 10 along the G-G line;
Figure 13 is another state diagram of Figure 10;
Figure 14 is the Facad structure schematic diagram that pushes away celectome among the present invention;
Structure enlarged diagram when Figure 15 is pushing away celectome and be stuck on the rail among the present invention.
Figure 16 is that the E of Fig. 1 is to view;
Figure 17 is the cutaway view of Figure 16 along the H-H line;
Figure 18 is the cutaway view of Figure 17 along the I-I line;
Figure 19 is the cutaway view of Fig. 1 along the C-C line;
Figure 20 is the structural representation of the central shaft among the present invention;
Figure 21 is the J portion partial enlarged view of Fig. 4;
Figure 22 is the cutaway view of Figure 21 along the K-K line;
Figure 23 is the front view of conduction jaw;
Figure 24 is the vertical view of Figure 23;
Figure 25 is the cutaway view of Figure 23 along the L-L line;
Figure 26 is the cutaway view of Figure 23 along the M-M line;
Figure 27 is the front view of non-conductive jaw;
Figure 28 is the vertical view of Figure 27;
Figure 29 is the cutaway view of Figure 27 along the N-N line.
The specific embodiment
As Fig. 1,2,3,4,5,6,7,8, shown in 9, steel rail flash welding machine of the present invention, comprise first pair of casing 2,2 ', second pair of casing 6,6 ', central shaft 8, clamping cylinder 3, upset oil cylinder 7, push away knurl device 1 and welding transformer 11, first pair of casing 2 wherein, 2 ' and second pair of casing 6,6 ' is contained on the common central shaft 8 by hinge and constitutes two pairs of pincerlike clamping devices, clamping cylinder 3 all is housed to drive first pair of casing 2 between the casing of every pair of pincerlike clamping device, 2 ' and second pair of casing 6,6 ' rotates around central shaft 8 axis, first pair of casing 2,2 ' and second pair of casing 6, upset oil cylinder 7 is housed to realize that two pairs of casings are along central shaft 8 axis direction relative motions between 6 ', two welding transformers 11 are installed in first pair of casing 2 of one of two pairs of casings, 2 ' or second pair of casing 6, in 6 ', welding transformer 11 is electrically connected with the jaw 10 of two pairs of pincerlike clamping devices, clamping cylinder 3 comprises cylinder body 3-1, piston 3-2, piston rod 3-3, rod end coupling 3-3-1 and end cap 3-7, the inner chamber of cylinder body 3-1 is separated into the first chamber α and the second chamber β by piston 3-2, charged piston 3-5 is housed in the piston rod 3-3, piston rod 3-3 inner chamber is pressurized piston 3-5 and is separated into the 3rd chamber γ and the 4th chamber δ, the second chamber β is communicated with by oil circuit 1c with the 3rd chamber γ, has perforate 3-2-1 on the piston 3-2, charged piston 3-5 one end can pass and put in the first chamber α of cylinder body 3-1 from the perforate 3-2-1 of piston 3-2, charged piston 3-5 has through hole 3-5-2, through hole 3-5-2 is communicated with the 4th chamber δ of piston rod 3-3 inner chamber, the end 3-1-1 of cylinder body 3-1 has the first oil circuit 1a and the second oil circuit 1b, and be connected with hydraulic manifold block 3-8, the end of the end of the first oil circuit 1a and the second oil circuit 1b is all towards hydraulic manifold block 3-8, solenoid directional control valve 3-11 is housed on the hydraulic manifold block 3-8, guide's pressure-reducing valve 3-10 and hydraulic control one-way valve 3-13, oil guide pipe 3-6 is equipped with in the exit of the other end of the first oil circuit 1a, the projecting end of oil guide pipe 3-6 passes the perforate 3-2-1 of piston 3-2 and enters among the through hole 3-5-2 of charged piston 3-5 and is communicated with the 4th chamber δ of piston rod 3-3 inner chamber, the through hole 3-5-2 of the periphery of oil guide pipe 3-6 and charged piston 3-5 keeps one section sealed sliding movingly at least, the second oil circuit 1b other end leads to the first chamber α of cylinder body 3-1 inner chamber, and the second chamber β of cylinder body 3-1 inner chamber is communicated with hydraulic manifold block 3-8 by the 3rd oil circuit 1d.
Shown in Fig. 5,9, the end of the described first oil circuit 1a connects the end of the first check valve 3-9 on the hydraulic manifold block 3-8, the first check valve 3-9 goes up guide's pressure-reducing valve 3-10 in parallel, the other end of the first check valve 3-9 connects the oil revolving end of solenoid directional control valve 3-11, the oil inlet end of solenoid directional control valve 3-11 connects the second check valve 3-12, and the pressure side of unloading of guide's pressure-reducing valve 3-10 is communicated with the oil revolving end of solenoid directional control valve 3-11; The end of the second oil circuit 1b is communicated with the hydraulic control one-way valve 3-13 on the hydraulic manifold block 3-8, and solenoid directional control valve 3-11 is connected with the control oil circuit of hydraulic control one-way valve 3-13; The 3rd oil circuit 1d is communicated with the fuel tank loop of hydraulic manifold block 3-8.Hydraulic manifold block 3-8 connects fuel tank 15 and hydraulic pump 17.
Shown in Fig. 5,7,8, for charged piston being moved steadily and sealing reliable, also be fixed with interior cover 3-4 near piston 3-2 end in the described piston rod 3-1, the one section periphery of the piston rod part 3-5-3 of charged piston 3-5 and the endoporus 3-4-1 sealed sliding of interior cover 3-4 are movingly.
As Fig. 4,10,11,12,13, shown in 14, stressed evenly and can eliminate the influence of rail tensile stress butt welded seam in order in pushing away the knurl process, to push away celectome, have pressurize and push away the knurl function, the described knurl device 1 that pushes away comprises and is fixed on first pair of casing 2,2 ' or second pair of casing 6, two on 6 ' push away knurl oil cylinder 1-1,1-2, two push away celectome tool rest 1-3,1-4, top tool rest 1-5 and push away celectome 1-10, two push away knurl oil cylinder 1-1, the piston rod 1-1-1 of 1-2,1-2-1 front end load respectively pushes away celectome tool rest 1-3,1-4, two push away celectome tool rest 1-3,1-4 all is connected with top tool rest 1-5, when pushing away knurl, push away the celectome 1-10 back side and be resisted against and push away celectome tool rest 1-3, the front of 1-4.
Shown in Figure 14,15, in order in pushing away the knurl process, not hurt rail itself, and can increase the service life that pushes away celectome greatly, the described celectome 1-10 that pushes away comprises continuous left side cutter hub 1-10-1, top cutter hub 1-10-2, right side cutter hub 1-10-3 and bottom cutter hub 1-10-4, the cutter hub that wherein is positioned at head end and tail end is provided with retaining mechanism 1-10-5, and described cutter hub is provided with cutting edge; In the time of in working order, described retaining mechanism 1-10-5 makes the cutter hub that is positioned at head end and tail end interconnect locking, make the cross sectional shape of the cutting edge formation rail of described cutter hub, in left side cutter hub 1-10-1, top cutter hub 1-10-2, right side cutter hub 1-10-3 and bottom cutter hub 1-10-4, be equipped with installing hole, resilient supporting unit 1-10-8 be housed in installing hole and the keeper 1-10-7 that part is stretched out the cutting edge of above-mentioned cutter hub is housed.
As Fig. 1,16,17, shown in 18, in order to have the common knurl function and easy to adjust that pushes away, simple and practical, described second pair of casing 6, be fitted with suspension type toolsetting mechanism 4 on 6 ', this toolsetting mechanism 4 comprises a left side, right pull bar 4-5, support 4-7, spring 4-3, packing ring 4-6, fastening screw nut 4-4, a left side, right avertence heart worm gear 4-1, a left side, right worm screw 4-12, baffle plate 4-11 and push away celectome 1-10 ', wherein left, right pull bar 4-5 links to each other with the top cutter hub 1-10 '-2 that pushes away celectome 1-10 ' respectively, a left side, the upper end of right pull bar 4-5 is by spring 4-3, packing ring 4-6, fastening screw nut 4-4 hangs on and is fixed on the support 4-7 that hoisting axis puts, a left side, the worm gear end of right avertence heart worm gear 4-1 is contained in second pair of casing 6,6 ' lower end, a left side, the eccentric external part of right avertence heart worm gear 4-1 hangs a left side that pushes away celectome 1-10 ' respectively, right side cutter hub 1-10 '-1,1-10 '-3, a left side, right avertence heart worm gear 4-1 respectively with a left side, right worm screw 4-12 engagement.
As Fig. 1,19, shown in 20, in order to increase the axial carrying capacity of central shaft, improve its bulk strength and rigidity simultaneously, described central shaft 8 comprises mandrel 8-1, the first insulation sleeve 8-4 and axle sleeve 8-5, the first insulation sleeve 8-4 is sleeved on the rear end of mandrel 8-1, the rear portion of the first insulation sleeve 8-4 and mandrel 8-1 all is arranged in the endoporus 8-5-1 of axle sleeve 8-5, also be set with the second insulation sleeve 8-2 on the mandrel 8-1, and the second insulation sleeve 8-2 is contained in the front portion of the endoporus 8-5-1 of axle sleeve 8-5, by the second insulation sleeve 8-2, the first insulation sleeve 8-4, be injected with insulating materials 8-3 in the cavity 8-15 that mandrel 8-1 and axle sleeve 8-5 constitute, mandrel 8-1 and axle sleeve 8-5 are bonded together.
As Fig. 4,21,22,23,24,25,26,27,28, shown in 29, in order to save the jaw material cost and to reduce difficulty of processing, improve its yield rate, the jaw 10 of described pincerlike clamping device comprises a pair of non-conductive jaw 10-1 and pair of conductive jaw 10-5, non-conductive jaw 10-1 is fixedlyed connected with the jaw seat 10-3 of casing one end, conduction jaw 10-5 is fixedlyed connected with the jaw seat 10-3 ' of the casing other end, has water channel 10-5-1 in the conduction jaw 10-5, on the conduction jaw 10-5 water pipe head 10-4 is housed, water pipe head 10-4 communicates with water channel 10-5-1, on non-conductive jaw 10-1 and the conduction jaw 10-5 resiliency supported 10-7 is housed all.
Shown in Fig. 3,4, welding transformer 11 is electrically connected with the conduction jaw 10-5 of jaw 10 by bus-bar 14; Perhaps piston rod and the bus-bar 14 by upset oil cylinder 7 is electrically connected with the conduction jaw 10-5 of jaw 10.
Shown in Fig. 1,3, be connected with suspender 5 on the first pair of casing 2,2 ' and the second pair of casing 6,6 '.
The present invention is as follows in clamping cylinder 3 courses of work, shown in Fig. 2,5,7,8,9, process from the open configuration to the clamped condition: the clamping button of control panel is got to the clamping position, pressure oil from hydraulic pump 17 is opened hydraulic control one-way valve 3-13 by the oil circuit of hydraulic manifold block 3-8 inside, simultaneously, pressure oil enters the first chamber α by hydraulic control one-way valve 3-13 through the second oil circuit 1b, promote piston 3-2 and piston rod 3-3 to the motion of end cap 3-7 direction, the hydraulic oil of the second chamber β is through the 3rd oil circuit 1d oil sump tank 3-15; Charged piston 3-5 also begins to move to the termination of piston rod 3-3 simultaneously, the second chamber β hydraulic oil flows into the 3rd chamber γ through oil circuit 1c, the 4th chamber δ hydraulic oil enters hydraulic manifold block 3-8 through oil guide pipe 3-6, the first oil circuit 1a, through solenoid directional control valve 3-11, the oil return circuit of the first oil circuit 1a flows back to fuel tank 3-15.
Process from the clamped condition to the pressurized state: press control panel supercharging button, solenoid directional control valve 3-11 action, the control oil circuit of hydraulic control one-way valve 3-13 does not have pressure oil, and hydraulic control one-way valve 3-13 closes, and the second oil circuit 1b closes.Pressure oil enters the 4th chamber δ through check valve 3-12, guide's pressure-reducing valve 3-10, solenoid directional control valve 3-11, the first oil circuit 1a and oil guide pipe 3-6; The second chamber β and the 3rd chamber γ connect fuel tank 3-15, and pressure is zero; Charged piston 3-5 is to the motion of the end of cylinder body 3-1 3-1-1 direction, and the first chamber α oil pressure increases.Pressure raising ratio be charged piston 3-5 large end face long-pending with oil guide pipe 3-6 oil duct area difference and the ratio of the difference of charged piston 3-5 small end area and oil guide pipe 3-6 external diameter.Process from the pressurized state to the open configuration: control panel is clamped button get to and open the position, solenoid directional control valve 3-11 dead electricity, action.The 3rd oil circuit advances pressure oil, hydraulic control one-way valve 3-13 opens, pressure oil advances the second chamber β through the 3rd oil circuit 1d, promoting piston 3-2 and piston rod 3-3 moves to the end of cylinder body 3-1 3-1-1 direction, simultaneously, the second chamber β hydraulic oil enters the 3rd chamber γ through oil circuit 1c, promoting charged piston 3-5 moves to the termination of piston rod 3-3 direction, the 4th chamber δ fluid enters hydraulic manifold block 3-8 through the oil guide pipe 3-6 and the first oil circuit 1a, through solenoid directional control valve 3-11, the oil return circuit of the first oil circuit 3-1a flows back to fuel tank 3-15.
It is as follows that the present invention pushes away the knurl course of work, pushes away the knurl mode with pressurize and work, and adopts two to push away knurl oil cylinder 1-1,1-2 and push away celectome 1-10, at this moment can change suspension type toolsetting mechanism 4 and the common celectome 1-10 ' that pushes away.Work in the common knurl mode that pushes away, relying on upset oil cylinder 7 pushing away the common celectome 1-10 ' that pushes away goes ahead, the common celectome 1-10 ' that pushes away needs suspension type toolsetting mechanism 4 to hang, weld earlier, cut off oil circuit then and unclamp the rail of an end, allow upset oil cylinder 7 push away casing and push away celectome 1-10 ' and draw close to the centre and push away knurl, this mode is applicable to short rail (rail below 200 meters), does not at this moment need to push away knurl oil cylinder 1-1,1-2 work.Can apply in a flexible way above two kinds according to field condition and push away the knurl mode.
Claims (8)
1. steel rail flash welding machine, comprise first pair of casing (2,2 '), second pair of casing (6,6 '), central shaft (8), clamping cylinder (3), upset oil cylinder (7), push away knurl device (1) and welding transformer (11), first pair of casing (2 wherein, 2 ') and second pair of casing (6,6 ') be contained in common central shaft (8) by hinge and go up two pairs of pincerlike clamping devices of formation, clamping cylinder (3) all is housed to drive first pair of casing (2 between the casing of every pair of pincerlike clamping device, 2 ') and second pair of casing (6,6 ') rotate around central shaft (8) axis, first pair of casing (2,2 ') and second pair of casing (6, upset oil cylinder (7) is housed to realize that two pairs of casings are along central shaft (8) axis direction relative motion 6 '), two welding transformers (11) are installed in first pair of casing (2 of one of two pairs of casings, 2 ') or second pair of casing (6,6 ') in, welding transformer (11) is electrically connected with the jaw (10) of two pairs of pincerlike clamping devices, clamping cylinder (3) comprises cylinder body (3-1), piston (3-2), piston rod (3-3), rod end coupling (3-3-1) and end cap (3-7), the inner chamber of cylinder body (3-1) is separated into first chamber (α) and second chamber (β) by piston (3-2), charged piston (3-5) is housed in the piston rod (3-3), piston rod (3-3) inner chamber is pressurized piston (3-5) and is separated into the 3rd chamber (γ) and the 4th chamber (δ), second chamber (β) is communicated with by oil circuit (1c) with the 3rd chamber (γ), it is characterized in that:
Have perforate (3-2-1) on a, the piston (3-2), charged piston (3-5) end can pass and put in first chamber (α) of cylinder body (3-1) from the perforate (3-2-1) of piston (3-2),
B, charged piston (3-5) have through hole (3-5-2), and through hole (3-5-2) is communicated with the 4th chamber (δ) of piston rod (3-3) inner chamber,
The end (3-1-1) of c, cylinder body (3-1) has first oil circuit (1a) and second oil circuit (1b), and is connected with hydraulic manifold block (3-8),
One end of one end of d, first oil circuit (1a) and second oil circuit (1b) is all towards hydraulic manifold block (3-8),
Solenoid directional control valve (3-11), guide's pressure-reducing valve (3-10) and hydraulic control one-way valve (3-13) are housed on e, the hydraulic manifold block (3-8),
Oil guide pipe (3-6) is equipped with in the exit of the other end of f, first oil circuit (1a), the projecting end of oil guide pipe (3-6) passes the perforate (3-2-1) of piston (3-2) and enters in the through hole (3-5-2) of charged piston (3-5) and is communicated with the 4th chamber (δ) of piston rod (3-3) inner chamber, the through hole (3-5-2) of the periphery of oil guide pipe (3-6) and charged piston (3-5) keeps one section sealed sliding movingly at least
G, second oil circuit (1b) other end lead to first chamber (α) of cylinder body (3-1) inner chamber,
Second chamber (β) of h, cylinder body (3-1) inner chamber is communicated with hydraulic manifold block (3-8) by the 3rd oil circuit (1d).
2. steel rail flash welding machine according to claim 1, it is characterized in that: an end of described first oil circuit (1a) connects an end of first check valve (3-9) on the hydraulic manifold block (3-8), first check valve (3-9) is gone up guide's pressure-reducing valve in parallel (3-10), the other end of first check valve (3-9) connects the oil revolving end of solenoid directional control valve (3-11), the oil inlet end of solenoid directional control valve (3-11) connects second check valve (3-12), and the pressure side of unloading of guide's pressure-reducing valve (3-10) is communicated with the oil revolving end of solenoid directional control valve (3-11); One end of second oil circuit (1b) is communicated with the hydraulic control one-way valve (3-13) on the hydraulic manifold block (3-8), and solenoid directional control valve (3-11) is connected with the control oil circuit of hydraulic control one-way valve (3-13); The 3rd oil circuit (1d) is communicated with the fuel tank loop of hydraulic manifold block (3-8).
3. steel rail flash welding machine according to claim 1, it is characterized in that: also be fixed with interior cover (3-4) near piston (3-2) end in the described piston rod (3-1), the one section periphery of the piston rod part (3-5-3) of charged piston (3-5) and endoporus (3-4-1) sealed sliding of interior cover (3-4) are movingly.
4. according to claim 1 or 2 or 3 described steel rail flash welding machines, it is characterized in that: the described knurl device (1) that pushes away comprises and is fixed on first pair of casing (2,2 ') or second pair of casing (6,6 ') two on push away knurl oil cylinder (1-1,1-2), two push away celectome tool rest (1-3,1-4), top tool rest (1-5) and push away celectome (1-10), two push away knurl oil cylinder (1-1, piston rod (1-1-1 1-2), 1-2-1) front end respectively load push away celectome tool rest (1-3,1-4), two push away celectome tool rest (1-3,1-4) all be connected with top tool rest (1-5), when pushing away knurl, push away celectome (1-10) back side and be resisted against and push away celectome tool rest (1-3, front 1-4).
5. steel rail flash welding machine according to claim 4, it is characterized in that: the described celectome (1-10) that pushes away comprises continuous left side cutter hub (1-10-1), top cutter hub (1-10-2), right side cutter hub (1-10-3) and bottom cutter hub (1-10-4), the cutter hub that wherein is positioned at head end and tail end is provided with retaining mechanism (1-10-5), and described cutter hub is provided with cutting edge; In the time of in working order, described retaining mechanism (1-10-5) makes the cutter hub that is positioned at head end and tail end interconnect locking, make the cross sectional shape of the cutting edge formation rail of described cutter hub, in left side cutter hub (1-10-1), top cutter hub (1-10-2), right side cutter hub (1-10-3) and bottom cutter hub (1-10-4), be equipped with installing hole, resilient supporting unit (1-10-8) be housed in installing hole and the keeper (1-10-7) that part is stretched out the cutting edge of above-mentioned cutter hub is housed.
6. according to claim 1 or 2 or 3 described steel rail flash welding machines, it is characterized in that: described second pair of casing (6,6 ') be fitted with suspension type toolsetting mechanism (4) on, this toolsetting mechanism (4) comprises a left side, right pull bar (4-5), support (4-7), spring (4-3), packing ring (4-6), fastening screw nut (4-4), a left side, right avertence heart worm gear (4-1), a left side, right worm screw (4-12), baffle plate (4-11) and push away celectome (1-10 '), wherein left, right pull bar (4-5) links to each other with the top cutter hub (1-10 '-2) that pushes away celectome (1-10 ') respectively, a left side, the upper end of right pull bar (4-5) is by spring (4-3), packing ring (4-6), fastening screw nut (4-4) hangs on the support (4-7) that is fixed on hoisting axis and puts, a left side, the worm gear end of right avertence heart worm gear (4-1) is contained in second pair of casing (6,6 ') lower end, a left side, the eccentric external part of right avertence heart worm gear (4-1) hangs a left side that pushes away celectome (1-10 ') respectively, right side cutter hub (1-10 '-1,1-10 '-3), a left side, right avertence heart worm gear (4-1) respectively with a left side, right worm screw (4-12) engagement.
7. according to claim 1 or 2 or 3 described steel rail flash welding machines, it is characterized in that: described central shaft (8) comprises mandrel (8-1), first insulation sleeve (8-4) and axle sleeve (8-5), first insulation sleeve (8-4) is sleeved on the rear end of mandrel (8-1), the rear portion of first insulation sleeve (8-4) and mandrel (8-1) all is arranged in the endoporus (8-5-1) of axle sleeve (8-5), also be set with second insulation sleeve (8-2) on the mandrel (8-1), and second insulation sleeve (8-2) is contained in the front portion of the endoporus (8-5-1) of axle sleeve (8-5), by second insulation sleeve (8-2), first insulation sleeve (8-4), be injected with insulating materials (8-3) in the cavity (8-15) that mandrel (8-1) and axle sleeve (8-5) constitute, mandrel (8-1) and axle sleeve (8-5) are bonded together.
8. according to claim 1 or 2 or 3 described steel rail flash welding machines, it is characterized in that: the jaw of described pincerlike clamping device (10) comprises a pair of non-conductive jaw (10-1) and pair of conductive jaw (10-5), non-conductive jaw (10-1) is fixedlyed connected with the jaw seat (10-3) of casing one end, conduction jaw (10-5) and the jaw seat of the casing other end (10-3 ') fixedly connected, has water channel (10-5-1) in the conduction jaw (10-5), on the conduction jaw (10-5) water pipe head (10-4) is housed, water pipe head (10-4) communicates with water channel (10-5-1), on non-conductive jaw (10-1) and the conduction jaw (10-5) resiliency supported (10-7) is housed all.
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| CN 200910182212 CN101602138B (en) | 2009-06-30 | 2009-06-30 | Steel rail flash welding machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910182212 CN101602138B (en) | 2009-06-30 | 2009-06-30 | Steel rail flash welding machine |
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| CN101602138B true CN101602138B (en) | 2011-07-13 |
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| CN102606553B (en) * | 2012-03-31 | 2015-02-11 | 常州市瑞泰工程机械有限公司 | Shearing synchronous oil circuit for flash welding machine |
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| CN105033430B (en) * | 2015-05-29 | 2017-06-16 | 正茂集团有限责任公司 | Cable link flash welder transmission device |
| CN107671403B (en) * | 2017-10-20 | 2023-05-26 | 中国铁道科学研究院金属及化学研究所 | Quick pressure-maintaining convex-pushing direct-current railway steel rail flash butt welding machine |
| CN108453316B (en) * | 2018-05-04 | 2024-05-03 | 成都西南交通大学产业(集团)有限公司 | Suspension type automatic pressure maintaining tumor pushing mechanism |
| CN109128329B (en) * | 2018-10-09 | 2023-09-01 | 浙江金洲管道工业有限公司 | Self-adaptive strip steel clamping device |
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