CN205474639U - A rail travelling bogie that is used for bridge floor railway to lay rail welding rail production line - Google Patents

Abstract

The utility model relates to a rail transport trolley used for a rail rail welding production line for laying bridge deck railways. A fixed frame is vertically arranged at the front end of the fixed frame, and a triangle iron is vertically arranged at the lower end of the fixed frame, and the triangle iron and the trolley bracket are respectively located on the left and right sides of the fixed frame; the two sides of the trolley bracket are respectively welded with triangular protrusions. The structure is simple, and it is convenient to fix the rail and the trolley as a whole with flange bolts. During the running process or in the curved section, the rail is prevented from moving and falling. It is easy to use by straightening the trolley in the right direction and passing it quickly. Multiple trolleys are placed under each long rail, and the long rail can be transported under the traction of the tractor without deformation of the long rail.

Description

A rail transport trolley used in a rail welding production line for bridge deck railway laying

technical field

The utility model belongs to the construction field of roads, railways or bridges, in particular to a rail transport trolley used in a rail welding production line for bridge deck railway laying.

Background technique

There are generally two mature experiences in the laying of seamless line long rails. One is to use factory-welded long rails and use long rail laying trains to lay them, then use mobile flash welding machine units for locking welding, and the other is to establish long rails on site for welding. The production plant uses a fixed flash welding machine to weld the 25m standard rail, and then transports it to the design location by long-gauge train for laying.

Combined with the characteristics of the light rail project, the urban roads in the downtown area do not have the production conditions for long rail bases, there is not enough space for the construction of long rail bases and connection lines, and the transportation conditions for long rail trains are not available. We can only choose 25m standard gauge and build 25m short gauge The storage base is transported by car to the on-site hoisting and upper bridge for long rail welding. According to the analysis of the structure of the L-shaped ballast bed, after the pouring of the ballast bed is completed, the L wall structure will affect the welding. The space between the inner side of the L wall and the rail is insufficient, and the mobile welding machine cannot perform rail welding operations. Conditions for welding 25m rails to form seamless lines;

At present, cranes are used to transport the rails from the welding area to the rail installation area, but at present, when transporting long rails, the crane cannot transport the long rails, and under the condition of only one support point, the guide rails will be in place. Deformation occurred during shipping.

Utility model content

In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a simple structure, after welding the long rail, the long rail can be transported to the construction site of the track, and the long rail can be kept parallel during transportation. A rail transport trolley in a rail welding rail production line.

In order to achieve the above object, the technical solution adopted by the utility model is: a rail transport trolley used in the rail transport trolley of the bridge deck railway laying rail welding rail production line, including a trolley bracket, the lower part of the trolley bracket The four corners of the four corners are respectively connected with guide pulleys through the pulley support platform, and the front end of the lower end surface of the described trolley bracket is vertically provided with a fixed frame, and the lower end of the described fixed frame is vertically provided with a triangular iron, and the triangular iron and the trolley bracket are respectively located The left and right sides of the fixed frame; the two sides of the trolley bracket are respectively welded with triangular protrusions.

The front end of the trolley bracket and the triangle iron are connected by reinforcing ribs.

The triangular iron is a triangular steel plate cut from a steel plate, and a round hole is arranged in the middle of the triangular steel plate.

The length of the trolley bracket is 670mm, and the width is 445mm; the length of the side of the connection between the triangle iron and the fixed frame is 465mm, and the height of the side is 460mm.

The fixed frame is a rectangular steel frame welded by square steel.

The utility model adopts the above technical scheme and has the following advantages: the structure is simple, and it is convenient to fix the rail and the trolley as a whole with flange bolts, and avoid the rail from moving and falling during the running process or in the curved section; A reinforced triangular triangle iron, when the front of the trolley hits the door ribs on both sides, the trolley can easily guide the door ribs to the two sides of the trolley through the triangle iron, and smoothly straighten the direction of the trolley and pass it quickly. It is easy to use and under each long rail Place multiple trolleys, and the long rails can be transported under the traction of the tractor, and the long rails will not be deformed.

Description of drawings

Fig. 1 is the front view structure schematic diagram of rail transport dolly in the utility model;

Fig. 2 is a structural schematic diagram of a top view of a rail transport trolley in the utility model;

In the figure: 1. trolley bracket; 2. pulley support platform; 3. triangular protrusion; 4. guide pulley; 5. fixed frame; 6. triangular iron;

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Example 1

As shown in Figures 1 and 2, a rail transport trolley used in the rail transport trolley of the bridge deck railway laying rail welding rail production line includes a trolley bracket 1, and the four corners of the lower part of the trolley bracket 1 pass through the Pulley support platform 2 is connected with guide pulley 4, and the front end of the lower end surface of described dolly bracket 1 is vertically provided with a fixed frame 5, and the lower end of described fixed frame 5 is vertically provided with a triangle iron 6, and this triangle iron 6 and dolly support The frame 1 is located on the left and right sides of the fixed frame 5 respectively; the two sides of the trolley bracket 1 are respectively welded with triangular protrusions 3 .

The trolley bracket 1 is used to drag the welded rails, and the traveling mechanism is four guide pulleys 4 connected by the lower end of the trolley bracket 1 through the pulley support platform 2, which can bear 800kg, so that the steering can be smoothly realized in the curved section. Two triangular protrusions 3 are welded on both sides of the bracket on the top of the trolley, so that the rail and the trolley can be fixed together with flange bolts, and the rail is prevented from moving and falling during the running process or in the curved section; In order to solve the interference problem, a reinforced triangular triangle iron 6 is specially set up at the front end of the trolley to avoid collision. Smoothly straighten the direction of the car and pass quickly.

Example 2

As shown in Figures 1 and 2, a rail transport trolley used in the rail transport trolley of the bridge deck railway laying rail welding rail production line includes a trolley bracket 1, and the four corners of the lower part of the trolley bracket 1 pass through the Pulley support platform 2 is connected with guide pulley 4, and the front end of the lower end surface of described dolly bracket 1 is vertically provided with a fixed frame 5, and the lower end of described fixed frame 5 is vertically provided with a triangle iron 6, and this triangle iron 6 and dolly support The frame 1 is respectively located on the left and right sides of the fixed frame 5; the two sides of the trolley bracket 1 are respectively welded with triangular protrusions 3, and the front end of the trolley bracket 1 is connected with the triangle iron 6 by a reinforcing rib 7; The triangular iron 6 is a triangular steel plate cut from a steel plate, and the middle part of the triangular steel plate is provided with a circular hole 8;

The trolley bracket 1 is used to drag the welded rails, and the traveling mechanism is four guide pulleys 4 connected by the lower end of the trolley bracket 1 through the pulley support platform 2, which can bear 800kg, so that the steering can be smoothly realized in the curved section. Two triangular protrusions 3 are welded on both sides of the bracket on the top of the trolley, so that the rail and the trolley can be fixed together with flange bolts, and the rail is prevented from moving and falling during the running process or in the curved section; In order to solve the interference problem, a reinforced triangular triangle iron 6 is specially set at the front end of the trolley’s traveling direction. When the front of the trolley hits the door ribs on both sides, the trolley can easily guide the gate ribs to the two sides of the trolley through the triangle iron, and smoothly guide the trolley in the direction of the trolley. Righting up and passing through quickly; in order to reduce the overall weight of the trolley, a circular hole 8 is provided in the middle part of the triangle iron 6; the front end of the trolley bracket 1 and the triangle iron 6 are connected by reinforcing ribs 7 to prevent the triangle iron 6 from being deformed when a collision occurs. After the ultrasonic flaw detection of the rail welding head is qualified, use a small fixed door crane to hoist the rail to the rail transport trolley in this embodiment. There are multiple rail transport trolleys, which are placed under the rail at equal distances and fixed by flange bolts On the rail transport trolley, use the tractor to fix it and transport it in place, that is, transport it to the construction site on the bridge.

In the rail welding production line laid on the bridge deck railway, a grinding machine with a length of 18 meters and a width of 3-5 meters is installed at a position 55 meters away from the side of the welding point of the welding machine; Set 5-6 pulley blocks of welding rail production line at 5 meters to push the polished rails to be welded; set 6-8 pulley blocks of welding rail production line on the rail pushing line between the grinding machine and the welding point of the welding machine to push the rails to the welding position for welding.

At the position of the welding point, the welding machine is hoisted according to the setting requirements of the welding machine; the pulley block passes under the welding machine to push the rail for welding.

From the other side from the welding point of the welding machine, according to the situation, set up a welding rail production line pulley block every 5-8 meters, a total of 280 meters, used to push the long rail to the long rail storage direction after welding, and push it to the long rail storage area for storing rails.

Each pulley block must be kept on the same level to ensure the accuracy of welding rail alignment. Near the welding alignment point, add 2-4 pulley blocks for the welding rail production line according to the needs to strengthen the stability of the rail and improve the accuracy of the alignment.

Each block of pulleys is fixed with a wire rope.

Setting and use of various types of door cranes

There is a mobile door crane in the rail storage area before welding. The rail storage area before welding is used to store 25m rails. The mobile door crane is a movable electric hanging door, which is used to lift the rail from the short rail storage area to the rail grinding machine. After the grinding is completed, it is hoisted on the pulley block, and then pushed to the position of the welding machine for welding. The rail storage area after welding is used to store the 250m long rail after welding. A fixed small door crane with a load capacity of 1T is set up per meter to form a door crane group. It is used to hoist the long rail from the pulley block to the ground for storage, and each door crane is fixed with a wire rope.

Use a large crane to hoist the welding machine onto the bridge, directly hoist it on the design installation position of the welding machine, and place the welding machine on a special working platform to form a flash welding work area;

Production line workflow

The 25m standard rail is transported from the storage base by a flatbed trailer and hoisted to the 25m rail storage area, which is the rail storage area before welding;

After the rail is hoisted onto the bridge, the rail is hoisted to the grinding machine by the mobile door crane for pre-welding grinding; after the grinding is completed, it is hoisted to the pulley block of the welding rail production line, and pushed to the welding point for welding; after the rail is welded, the manual cable winch is used to assist Push to the 250m long rail storage area for storage, that is, the rail storage area after welding.

After the ultrasonic flaw detection of the rail welding head is qualified, use a small fixed door crane to hoist the rail onto the rail transport trolley provided in this embodiment. After fixing, use a tractor to transport it to the construction position on the bridge, eliminating the need to change the length of the shop. The process of rail technology is labor-intensive and time-consuming. Make full use of the temporary welding rail points on the bridge working surface to complete the long rail welding. After the construction of the ballast bed is completed, the installation of the long rail is completed. Only the subsequent stress release and locking are left, which saves a lot of construction time and construction. Cost; the structure is simple, it is convenient to fix the rail and the trolley as a whole with flange bolts, and avoid the rail moving and falling during the running process or in the curved section; a reinforced triangular triangle iron is specially set at the front end of the trolley to act as the front of the trolley When the upper part hits the door ribs on both sides, the trolley can easily guide the door ribs to both sides of the trolley through the triangle iron, and smoothly straighten the direction of the trolley and pass it quickly. It is easy to use, and multiple trolleys are placed under each long rail. The transportation of the long rail can be realized under the bottom, and the long rail will not be deformed.

Example 3

On the basis of embodiment 1, described trolley bracket 1 is long 670mm, wide 445mm; The length of the side of described triangle iron 6 and fixed frame 5 joints is 465mm, and the high position of this side is 460mm; Compact in structure, rigidity is relatively Strong, not suitable for deformation when colliding, and high stability;

Described fixed frame 5 is the rectangular steel frame that is welded by square steel. It is convenient to weld the trolley bracket 1 and the triangle iron 6 together, and has high stability.

The above examples are only illustrations of the utility model, and do not constitute a limitation to the protection scope of the utility model. All designs identical or similar to the utility model all belong to the protection scope of the utility model.

Claims (5)

1. A rail transport trolley for a bridge deck railway laying rail welding rail production line, characterized in that it includes a trolley bracket (1), and the four corners of the lower part of the trolley bracket (1) are supported by pulleys respectively (2) The guide pulley (4) is connected, and the front end of the lower end surface of the trolley bracket (1) is vertically provided with a fixed frame (5), and the lower end of the fixed frame (5) is vertically provided with a triangle iron (6 ), and the triangle iron (6) and the trolley bracket (1) are respectively located on the left and right sides of the fixed frame (5); the two sides of the trolley bracket (1) are respectively welded with triangular protrusions (3). 2. A rail transport trolley for the bridge deck railway laying rail welding rail production line according to claim 1, characterized in that, the front end of the trolley bracket (1) and the triangle iron (6) are connected by reinforcing ribs (7) CONNECTION. 3. A rail transport trolley for a bridge deck railway laying rail welding rail production line according to claim 1, characterized in that, the triangle iron (6) is a triangular steel plate cut from a steel plate, and the triangular steel plate The middle part is provided with a circular hole (8). 4. A rail transport trolley for a bridge deck railway laying rail welding rail production line according to claim 1, characterized in that, the trolley bracket (1) is 670mm long and 445mm wide; the triangle iron ( 6) The length of the side connecting with the fixed frame (5) is 465mm, and the height of the side is 460mm. 5. A rail transport trolley for a bridge-deck railway laying rail welding rail production line according to claim 1, characterized in that said fixing frame (5) is a rectangular steel frame welded by square steel.