CN204673137U - A kind of tower cylinder welding hoistable platform - Google Patents

Abstract

The utility model relates to a manufacturing tooling for a wind power tower, in particular to a lifting platform for tower welding, including a bracket and an operating platform. The bracket includes two left and right columns, and the two columns are connected by a number of oblique and transverse fixed support frames. The top of the support is provided with a drive motor that can be rotated forward and backward, and the bottom of the support is provided with a load wheel along the direction of the support plane and compatible with the guide rail laid on the ground; the work platform is vertically arranged on the front of the support, and A counterweight is provided on the opposite side of the bracket, and the operating platform and the counterweight are connected by a chain connected to the output shaft of the drive motor to form a sprocket chain. The beneficial effect of the utility model lies in that the working site occupies less space, and can meet the production requirements of wind power towers of various specifications, ensure the quality requirements of products, improve labor efficiency, reduce labor intensity of workers, reduce production costs, and improve economic benefits .

Description

A tower welding lifting platform

technical field

The utility model relates to a manufacturing tooling for wind power tower tubes, in particular to a lifting platform for tower tube welding.

Background technique

In the manufacturing process of wind turbines, the welding of the tower is an important factor affecting the progress and quality. How to improve the welding speed and quality of the tower tube of the wind tower is an important problem that needs to be solved urgently.

For the case that the tower is cylindrical and has a diameter (3~4 meters), the welder will have great inconvenience when welding. In the process of longitudinal seam welding, due to the particularity of its structure, in the past, when many manufacturers performed submerged arc automatic welding outside the longitudinal seam of the rolled steel plate, it was necessary to turn the weld to the top first, and then A temporary support is set up on it, and a submerged arc automatic welding trolley is placed on the shelf, and the movement of the trolley completes the welding outside the longitudinal seam below it. The disadvantage of this method is that it is labor-intensive and time-consuming to build a shelf, and the work efficiency is low and it is inconvenient for flow operation, which will lead to poor quality of the weld after welding, low welding efficiency, and great danger for the staff when welding.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a tower welding lifting platform, which can ensure the quality requirements of products, improve labor efficiency, reduce labor intensity of workers, reduce production costs, and improve economic benefits.

In order to achieve the above technical purpose, the utility model provides a solution: a lifting platform for tower welding, including a bracket and a working platform, the bracket includes two left and right columns, and the two columns are fixed by a number of oblique and transverse support frames. connection; the top of the support is provided with a drive motor that can be rotated forward and backward, and the bottom of the support is provided with a load wheel along the plane direction of the support and adapted to the guide rail laid on the ground; the working platform is vertically arranged on the front of the support, The opposite side of the support is provided with a counterweight, and the operating platform and the counterweight are connected through a chain connected to the output shaft of the driving motor to form a sprocket chain.

Moreover, the work platform is slidingly connected with two columns respectively through two groups of rollers, each group of rollers is composed of two rollers positioned on the front and back sides of the columns, the rollers positioned on the back side of the columns are on top, and the rollers positioned on the front side of the columns are down.

Moreover, the column adopts channel steel.

The beneficial effect of the utility model is that: the operation site occupies less, and can meet the production requirements of wind power towers with different specifications, ensure the quality requirements of products, improve labor efficiency, reduce labor intensity of workers, reduce production costs, and improve economic benefits .

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a side view of FIG. 1 .

Figure 3 is an enlarged view of the connection between the working platform and the support.

Among them, 1. Operating platform, 2. Column, 3. Fixed support frame, 4. Driving motor, 5. Loading wheel, 6. Counterweight, 7. Chain, 8. Bearing, 9. Roller.

Detailed ways

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

This embodiment provides a lifting platform for tower welding, as shown in Figure 1 and Figure 2, including a bracket and a working platform 1, the bracket includes two left and right columns 2, and the two columns 2 are fixed obliquely and horizontally The support frame 3 is connected to form a single-sided support.

The top of the support is provided with a forward and reverse drive motor 4, and the motor adopts a forward and reverse motor, which can realize positive and negative rotation, and can change the direction of rotation of the main shaft, thereby changing the rise and fall of the platform. The reducer adopts a worm gear reducer with a large transmission ratio, suitable for low speed and heavy load, stable transmission, and self-locking.

The bottom of the support is provided with load wheels 5 along the plane direction of the support and adapted to the guide rail laid on the ground, which can make the whole lifting platform move and increase its working area.

Described operation platform 1 is vertically arranged with the front of support, and the reverse side of described support is provided with counterweight 6, and operation platform 1 and counterweight 6 form sprocket chain connection by the chain 7 that is connected with the output shaft of driving motor 4. A coupling can be installed on the output shaft of the drive motor 4 to transmit torque. In order to achieve the movement function of lifting the platform, it is necessary to install a sprocket on the shaft to drive the chain 7 up and down. In order to make the shaft rotate freely, it is necessary to install two Bearing 8 is distributed on both sides of the sprocket wheel. The work platform 1 is equivalent to an outstretched cantilever beam. In order to reduce the load on the rollers 9 and the bending moment to the column 2, an appropriate counterweight 6 is arranged on the opposite side of the support to balance a part of the overhanging weight. In this way, the load on the motor is reduced during lifting. Due to the large size of the platform and the overhanging cantilever, the movement of the welding trolley and personnel during work are all active loads. In order to improve the rigidity of the platform itself, the lifting system composed of the drive motor 4 and the chain sprocket is divided into two parts and the sprockets are separated as much as possible. The arrangement improves the stability of the platform structurally.

Further, as shown in FIG. 3 , the above-mentioned work platform 1 is slidingly connected with two columns 2 through two groups of rollers 9 , each group of rollers 9 is composed of two rollers 9 located on the front and back sides of the columns 2 , and the rollers 9 located on the back side of the columns 2 Roller 9 is on, and the roller 9 that is positioned at column 2 fronts is down. The gap between the roller 9 and the column 2 should be as small as possible, and on the bracket connected to the two rollers 9 on the same horizontal plane, a channel steel is welded as a guide rail to ensure that the two rollers 9 move up and down. parallelism between them. The platform and the bracket are connected by rollers 9, and the two rollers 9 are placed on the front and back sides of the channel steel, and the balance of the working platform 1 is supported by respectively giving the channel steel bending moments. Because the roller 9 is a cylindrical platform with different sizes, the steps of the cylindrical platform take the edge of the channel steel as the track to ensure the straightness of the roller 9 walking.

Further, the above-mentioned column 2 adopts channel steel. Because the bending resistance of the channel steel is relatively strong, it is often used as a column, so the column 2 of the bracket is selected as a channel steel.

In order to make workers work on the platform safer, the submerged arc welding machine is placed in the hollowed-out position with No. 10 channel steel on the left, right and back sides of the platform. The placement of the submerged arc welding machine requires specialized technicians to weld the channel steel to each other to form a circle of guardrails.

During operation, through the forward and reverse rotation of the motor, the sprocket is driven to rotate, so that the chain 7 moves up and down, thereby realizing the lifting movement of the platform. Put the cylinder to be welded on the roller frame of the trolley, push the welding platform directly above the weld through the track, and then complete the automatic submerged arc welding of the weld.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements or deformations can also be made, these improvements or Deformation should also be regarded as the protection scope of the present utility model.

Claims (3)

1. A lifting platform for tower welding, comprising a support and an operating platform, characterized in that: the support comprises two columns on the left and right, and the two columns are connected by a number of oblique and horizontal fixed support frames; the top of the support is arranged The drive motor can be reversing. The bottom of the support is provided with load wheels along the plane direction of the support and adapted to the guide rails laid on the ground; The weight, the operating platform and the counterweight are connected by a chain connected to the output shaft of the driving motor to form a sprocket chain. 2. A lifting platform for tower welding according to claim 1, characterized in that: the working platform is respectively slidingly connected to two columns through two sets of rollers, and each set of rollers consists of two rollers located on the front and back of the columns. The rollers are formed, the rollers positioned on the opposite side of the column are on the top, and the rollers positioned on the front side of the column are on the bottom. 3. A lifting platform for tower welding according to claim 1 or 2, characterized in that: the column is made of channel steel.