CN107116292A - A kind of fixed flash welder equipment of track flat car - Google Patents

Abstract

The application provides a kind of fixed flash welder equipment of track flat car, including flat car (1) and flash welder (3), characterized in that, flash welder (3) is two, and it is symmetricly set in the middle part of flat car (1).The compact equipment, production efficiency are high, solve the rail distortion problem produced by 3 in Curve Segment weldering rail.Live uninterrupted sequential welding rail can be realized by being fixed on mobile flat car, reduced construction period, reduced production cost, improve operating efficiency.

Description

A rail flat car fixed flash welding machine equipment

technical field

The invention relates to the field of seamless line rail welding construction in the field of railway or urban rail transit, in particular to a fixed flash welder equipment for rail flat cars.

Background technique

With the rapid development of high-speed railways, heavy-duty railways and urban rail transit, due to the increase in operating speed and axle load, higher requirements are placed on the track, which promotes the development of high smoothness and high welding performance of the rail. , toughness, and heavy-duty direction continue to develop. Due to its high reliability and high stability, the seamless track has become the optimal choice for high-speed and heavy-duty track structures, and the welding of long rails is the key technology for realizing seamless railways.

Generally, the flash welding on site uses a mobile flash welding machine, which is loaded in a compartment or on a self-propelled rail car. During operation, the head of the welding machine extends out of the car body to weld the rails that have been placed on the line side or in the rail bearing groove. Only one joint can be welded at a time, and the rail must be unloaded into place in advance, so the work efficiency is low.

The existing on-site flash welding equipment for seamless lines generally adopts a mobile flash welding machine, which is loaded in a container body or a self-propelled rail car. During welding operations, the rail to be welded must be placed on the The side of the line or has been placed in the rail groove. The second skylight point is the welding operation, only one joint can be welded at a time. At the third skylight point, a large number of workers pulled out the old steel rails, straightened the welded new steel rails, and put them into the rail bearing grooves. And the old track is shortened and taken away at the next skylight point. The entire track change process requires at least four skylight points, which takes a long time, is inefficient, and requires a lot of manual cooperation. The rails must be stored on the track bed for at least four days, which seriously threatens the traffic safety of the existing line.

Contents of the invention

In order to overcome the existing defects, the present invention proposes a rail flat car fixed flash welder equipment.

The utility model relates to fixed flash welder equipment on a rail flat car, which includes a flat car and a flash welder. There are two flash welders, which are symmetrically arranged in the middle of the flat car.

Further, on the side of the flash welding machine on the flatbed car, a rail-into-rail device and a rail positioning frame are provided, wherein the rail-into-rail device and the rail positioning frame are two, and are symmetrically arranged on the flatbed; The other side of the flash welding machine is equipped with a rail positioning frame, a hydraulic station, a derailment alignment device and a reducer, wherein there are two rail positioning frames, a hydraulic station, a derailment alignment device and a reducer, and they are symmetrically arranged on the flatbed .

Further, the reducer is provided with an oil cylinder and a reduction wheel.

Further, a hydraulic motor is set at the bottom of the flash welding machine, and a slide rail is set between the rail positioning frame and the flash welding machine, wherein, a welding machine gear is set on the flash welding machine; a rack is set on the slide rail, and the hydraulic motor drives the welding machine The gear meshes with the rack on the slide rail.

Further, a moving frame and a static frame are set on the flash welding machine.

Further, the lower end of the static frame rail clamping oil cylinder on the flash welder is connected to a transformer, and the lower end of the transformer is connected to electrodes, and the first static frame oil cylinder and the second static frame oil cylinder in the horizontal direction are installed on one side of the static frame. Install the first static frame strut and the second static frame strut at the front ends of the frame cylinder and the second static frame cylinder, the first static frame cylinder moves the first static frame strut to move in the horizontal direction, and the second static frame cylinder moves The second static frame strut moves in the horizontal direction.

Further, the upper end and the lower end of the moving frame on the flash welding machine are respectively equipped with the first moving frame clamping oil cylinder and the second moving frame clamping oil cylinder in the vertical direction, the first moving frame clamping oil cylinder and the second moving frame clamping cylinder The oil cylinders are respectively connected with the upper electrode and the lower electrode; the left and right sides of the moving frame are respectively equipped with moving frame oil cylinders and moving frame struts.

With the rail flat car fixed flash welder equipment of the present invention, the fixed flash welder symmetrically installed on the rail flat car can remove the old rail fasteners when the existing line is replaced, and the old rail will be removed by the rail receiving car. Set aside the rail bearing slots to place the road shoulders, and saw the old rails into 25-meter-long short rails, and the old rails will be taken away by the rail collection car. At the same time, the 500-meter-long steel rail is welded into a 1.5-kilometer-long steel rail on the rail-welding flatbed car, and two strands can be welded at the same time. Workers install fasteners. The entire shop changing operation can be completed at one "skylight" point, truly realizing the integrated operation of shop changing. It greatly saves the construction time of paving replacement, reduces man-hours, and improves construction efficiency. After the resurfacing operation is completed, no rails are stored on the road shoulder on site, which greatly improves the traffic safety of the existing line during the resurfacing operation.

The equipment has compact structure and high production efficiency, which solves the problem of rail distortion caused by rail welding in curved sections. Fixing on the mobile flatbed can realize uninterrupted continuous rail welding on site, reduce construction period, reduce production cost and improve work efficiency.

Description of drawings

Figure 1 is a schematic diagram of a fixed flash welding machine on a rail flat car.

Figure 2 is a schematic diagram of a flash welder.

detailed description

A rail flat car fixed flash welder equipment provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Figures 1 and 2 show that the front end of the first rail 2 passes through the flatbed car 1 equipped with a symmetrical flash welding machine 3 from right to left at a certain speed, and the rail is adjusted horizontally by a rail-in-rail device 11, and then Enter the first rail positioning frame 12, the first rail positioning frame 12 carries out initial positioning of the rail 2 to be welded, the rail 2 passes through the moving frame 31 and the static frame 32 of the flash welding machine 3, enters the second rail positioning frame 14, and the rail 2 passes through The support of the hydraulic station 13, and the derailment rail alignment device 15, adjust the rail 2 through the derailment rail alignment device 15 and enter the speed reducer 16. After the rear end of the first rail 2 enters the static frame 32 of the flash welding machine 3, the speed reducer 16 actuate deceleration wheel 18 by oil cylinder 17 and steel rail 2 speeds are reduced to zero. The lower end of the static frame rail clamping oil cylinder 33 is connected to the transformer 34, and the lower end of the transformer 34 is connected to the electrode 35. The vertical orientation of the front end of the first rail 2 is fixed by the clamping oil cylinder 33 and the electrode 35 installed on the upper end of the static frame 32. The first static frame oil cylinder 36 and the second static frame oil cylinder 37 of the horizontal direction are installed on one side of the static frame 32, and the first static frame strut bar 38 and the second static frame strut 38 are installed on the front ends of the first static frame oil cylinder 36 and the second static frame oil cylinder 37. Frame strut 39, the first static frame oil cylinder 36 can actuate the first static frame strut 38 to move horizontally, and the second static frame oil cylinder 37 can also actuate the second static frame strut 39 to move horizontally. The first static frame oil cylinder 36 and the second static frame oil cylinder 37 are fixed to the horizontal orientation of the front end of the first steel rail 2 by the first static frame strut 38 and the second static frame strut 39 connected thereto.

The front end of the second rail enters the first rail positioning frame 12 after being adjusted in the horizontal direction of the rail alignment device 11 from right to left, and the first rail positioning frame 12 performs primary alignment adjustment on the front end of the second rail. Rail front end enters flash welding machine 3 moving frame 31, is in loose state.

The hydraulic motor 19 at the bottom of the flash welding machine drives the gear 20 of the welding machine to mesh with the rack 22 on the slide rail 21, and drives the flash welding machine 3 to perform primary adjustment of the horizontal orientation of the flash welding machine 3 along the slide rail 21. The rail device 11 and the first rail positioning frame 12 carry out the secondary adjustment of the horizontal orientation of the second rail.

The upper and lower ends of the moving frame 31 of the flash welding machine 3 are respectively equipped with clamping oil cylinders 40 and 41 in the vertical direction. The clamping oil cylinders 40 and 41 are connected to the upper and lower electrodes 42 and 43 respectively. 43 moving up and down realizes the centering of the vertical orientation of the second steel rail and the first steel rail. The left and right sides of the moving frame 31 are respectively equipped with oil cylinders 44 and struts 45. The horizontal orientation of the oil cylinders 44 and the struts 45 installed symmetrically on the left and right sides of the moving frame can realize the horizontal alignment of the second rail and the first rail. .

After the centering is adjusted, the flash welding machine 3 is powered on, and the moving frame 31 clamping the rail gradually moves towards the static frame 32 in the axial direction, and gradually makes the rail at the moving frame end and the rail at the static frame end pass through the micro-contact current and form a flash. Through flashing and heating, the heating depth of the end faces of the rails increases, and the approach of the movable frame 31 is gradually accelerated, and the burning of the rails is intensified. When the required displacement and pressure are reached, upsetting ends. At this time, the welded and formed rail is still in a clamped state at the moving frame end and the static frame end, and the upsetting oil cylinder 46 on the moving frame 31 actuates the pushing convex knife 47 to move axially to push away the welding bump at the welded joint position, and completes the whole process. The whole process of rail flash welding.

The symmetrically installed flash welder on the other side of the flatbed can simultaneously adjust the centering of the rail in the same manner. After the rail alignment is completed, the welding machine on one side can be started to weld the rail. After the rail on one side is welded, the rail on the other side that has been centered can be welded.

Two fixed flash welders installed symmetrically can share a set of power supply system, hydraulic pressure and cooling system, power supply, hydraulic pressure and cooling system. The symmetrically installed flash welding machine can feed and adjust the centering of the rails on the left and right rails at the same time. One side is welded first, and the other side can start welding immediately after the welding is completed, saving construction time.

The invention can realize the relay operation of two railway lines at the same time, with high degree of mechanization and fast construction efficiency. The old rail can be taken away when the new rail is laid. driving safety hazards. Increased safety of operations during railway maintenance.

Finally, it should be noted that the above embodiments are only used to describe the technical solutions of the present invention rather than limit the technical methods of the present invention. The present invention can be extended to other modifications, changes, applications and embodiments in application, and therefore it is considered that all such Modifications, changes, applications, and embodiments are all within the spirit and teaching scope of the present invention.

Claims (10)

1. a kind of fixed flash welder equipment of track flat car, including flat car (1) and flash welder (3), its feature exist In flash welder (3) is two, and is symmetricly set in the middle part of flat car (1).

2. the fixed flash welder equipment of track flat car according to claim 1, it is characterised in that the flat car (1) flash welder (3) side is set into track to track device (11) and rail locating rack (12) on, wherein, it is described enter track to track device (11) and the first rail locating rack (12) is two, and it is symmetricly set on flat car (1)；Glistened on the flat car (1) Welding machine (3) opposite side sets the second rail locating rack (14), hydraulic station (13), goes out track to track device (15) and decelerator (16), its In, the rail locating rack (14), hydraulic station (13), to go out track to track device (15) and decelerator (16) be two, and is symmetrically set It is placed on flat car (1).

3. the fixed flash welder equipment of track flat car according to claim 2, it is characterised in that the decelerator (16) oil cylinder (17) and ratio wheel (18) are set.

4. the fixed flash welder equipment of track flat car according to claim 1 or 2, it is characterised in that the flash of light Welding machine (3) bottom sets hydraulic motor (19), and slide rail (21) is set between rail locating rack (12) and flash welder (3), wherein, Welding machine gear (20) is set on flash welder (3)；Rack (22) is set on slide rail (21), and the hydraulic motor (19) drives welding machine Rack (22) engagement on gear (20) and slide rail (21).

5. the fixed flash welder equipment of track flat car according to claim 1, it is characterised in that the flash welder (3) moving frame (31) and quiet frame (32) are set on.

6. the fixed flash welder equipment of track flat car according to claim 5, it is characterised in that the flash welder (3) quiet frame rail clamping cylinder (33) the lower end connection transformer (34) of quiet frame (32) on, transformer (34) the lower end connection Electrode (35), quiet frame (32) are while install the first quiet frame oil cylinder (36) and the second quiet frame oil cylinder (37) of horizontal direction, first is quiet The first quiet frame strut (38) and the second quiet frame strut (39) are installed in frame oil cylinder (36) and the second quiet frame oil cylinder (37) front end, and first is quiet The quiet frame strut (38) of frame oil cylinder (36) start first carries out the motion of horizontal direction, second the second quiet frame of quiet frame oil cylinder (37) start Strut (39) carries out the motion of horizontal direction.

7. the fixed flash welder equipment of track flat car according to claim 5, it is characterised in that the flash welder (3) moving frame (31) top and bottom on are separately installed with the first moving frame clamping cylinder (40) and the second moving frame folder of vertical direction Locking oil cylinder (41), the first moving frame clamping cylinder (40) and the second moving frame clamping cylinder (41) respectively with Top electrode (42) and bottom electrode (43) it is connected；Moving frame (31) the right and left is separately installed with moving frame oil cylinder (44) and moving frame strut (45).

8. the method for the fixed flash welder equipment of track flat car according to any one in claim 1-7, it is special Levy and be,

First one steel rail (2) front end passes through the flat car (1) equipped with symmetrical flash welder (3), warp by right with certain speed to left The regulation for carrying out horizontal direction to rail into track to track device (11) is crossed, subsequently into the first rail locating rack (12), the first rail Locating rack (12) treats welding steel rail (2) and carries out Primary Location；

Rail (2) is by the moving frame (31) and quiet frame (32) of flash welder (3), into the second rail locating rack (14), rail (2) Through the support of hydraulic station (13), and go out track to track device (15), gone forward side by side by going out track to track device (15) centering regulation rail (2) Enter decelerator (16), treat that the first one steel rail (2) rear end enters the quiet frame (32) of flash welder (3), decelerator (16) passes through oil cylinder (17) rail (2) speed is reduced to zero by start ratio wheel (18)；

By the clamping cylinder (33) and electrode (35) installed in quiet frame (32) upper end by the first one steel rail (2) front end vertical orientations It is fixed；

First quiet frame oil cylinder (36) and the second quiet frame oil cylinder (37) are quiet by the first coupled quiet frame strut (38) and second Frame strut (39) is fixed to the first one steel rail (2) front end level orientation；

Second one steel rail front end is positioned by entering the first rail after entering the regulation of track to track device (11) horizontal direction from right to left Frame (12), the first rail locating rack (12) carries out primary contraposition to the second one steel rail front end and adjusted, and the second one steel rail front end enters Flash welder (3) moving frame (31), in relaxed state.

9. the method for the fixed flash welder equipment of track flat car according to claim 8, it is characterised in that

The rack (22) on welding machine gear (20) and slide rail (21) is driven to engage by the hydraulic motor (19) of flash welder bottom, Drive flash welder (3) to carry out flash welder (3) the primary of level orientation along slide rail (21) to adjust, by entering track to track device (11) and the first rail locating rack (12) to the second one steel rail carry out level orientation sub-adjusting；

First moving frame clamping cylinder (40) and the second moving frame clamping cylinder (41), which move up and down, realizes the second one steel rail and first The centering of rail vertical orientations；The oil cylinder (44) for the level orientation being left and right symmetrically arranged by moving frame and strut (45) thereon are real The centering of existing second one steel rail and the first one steel rail level orientation；

After centering is regulated, flash welder (3) is powered, and the moving frame (31) for clamping rail is gradually leaned on towards quiet frame (32) axial movement Closely, and gradually make moving frame end rail and quiet frame end rail mutually micro- pick-up current by and form flash of light, pass through flash of light and heating Rail-end heat penetration increases, and moving frame (31) is close progressively to be accelerated, and rail burns aggravation, and latter stage is burnt in rail flash, moves Frame (31) close to speed increase, two one steel rail end contacts and extrude form weld seam；

The rail of welding fabrication is pushed away in upset oil cylinder (46) start that moving frame end and quiet frame end are in clamped condition, moving frame (31) Convex knife (47) is axially moved and turns down the overlap at welding point position, completes whole rail flash welding overall process.

10. the method for the fixed flash welder equipment of track flat car according to claim 8, it is characterised in that

The flash welder that flat car opposite side is symmetrically installed is while be done in the same fashion rail centering regulation, and rail centering is complete Cheng Hou, can start side welding machine and rail is welded, other side has completed centering after the completion of the rail welding of side Rail is welded；

Wherein, two fixed flash welders being symmetrically installed share a set of electric power system, hydraulic pressure and cooling system, power supply, liquid Pressure and cooling system.