Turbine bolt placing rack

Abstract

The utility model discloses a steam turbine bolt placing frame in the field of steam turbine installation auxiliary equipment, which comprises a bottom plate, a plurality of vertical support rods are fixedly connected to the edge of the bottom plate at intervals, the top ends of the plurality of support rods are fixedly connected with the same transversely arranged rectangular limiting frame, and a positioning element is fixedly connected in the limiting frame. And the positioning element is used for separating a plurality of bolts and placing the bolts in a vertical state. According to the scheme, the problems that the operation is troublesome and the hoisting efficiency is influenced when the steam turbine bolt is hoisted at present are solved.

Description

Technical Field

[0001] The utility model relates to the field of steam turbine installation auxiliary equipment, in particular to a steam turbine bolt placement rack. Background Art

[0002] Steam turbine bolts are key components in steam turbine assembly, used to connect important components such as the turbine's cylinder block, cylinder head, and bulkhead. Turbine bolts are cylindrical in shape, with threads on the outer walls at both ends and a threaded through-hole inside that runs along its central axis. Turbine bolts are typically manufactured from high-strength alloy steel. A single turbine bolt can weigh over 100 kilograms and possess excellent high-temperature strength, creep strength, and oxidation resistance, enabling them to withstand the high-temperature and high-pressure environments experienced during steam turbine operation.

[0003] Steam turbine bolts (hereinafter referred to as bolts) are typically stacked before installation. During installation, the bolts are lifted by a crane and moved to the turbine for installation. However, during bolt installation, clearance measurements are required. Therefore, if the clearance does not meet the requirements, the installed bolts must be removed, adjusted, reinstalled, and then the clearance measurement must be repeated. This results in the same bolt being disassembled and assembled multiple times. When stacking the bolts, the crane's lifting rope is tied to the bolts, requiring manual lifting of one end of the bolt to expose the gap between the ropes. The crane is then activated to lift the bolt to the turbine. If the bolts are not installed as required, they must be lifted from the turbine and returned to their original position. This manual lifting process not only consumes considerable physical effort but also is cumbersome and reduces lifting efficiency. Utility Model Content

[0004] The utility model aims to provide a steam turbine bolt placement rack to solve the problem that the existing steam turbine bolts are difficult to operate and the lifting efficiency is affected.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a turbine bolt placement rack, comprising a base plate, with multiple vertical support rods fixedly connected to the edge of the base plate at intervals, and the top ends of the multiple support rods fixedly connected to the same horizontally arranged rectangular limit frame, a positioning element fixedly connected in the limit frame, and the positioning element is used to separate multiple bolts and place them in a vertical state.

[0006] Furthermore, the positioning element includes multiple horizontal bars and multiple vertical bars, which are crisscrossed and arranged in a well shape to form multiple accommodating grids, and the multiple horizontal bars and multiple vertical bars are fixedly connected in the limit frame.

[0007] Furthermore, a rubber pad is fixedly connected to the inner wall of each containing compartment.

[0008] Furthermore, a plurality of vertical positioning pins are evenly distributed on the bottom plate. The positioning pins correspond to the storage compartments one by one, and the positioning pins are located directly below the center points of the storage compartments.

[0009] Furthermore, four rollers are fixedly connected to the lower surface of the base plate, and the four rollers are distributed in four directions of the base in a rectangular shape.

[0010] Furthermore, the roller is made of a self-locking roller.

[0011] Beneficial effects of the utility model:

[0012] 1. Use positioning elements to position each bolt vertically in the holder, leaving space between them. When using a crane for lifting, tie the rope to the top of the bolt and then lift the bolt vertically upward. Compared to existing technologies, this solution eliminates the need to manually lift one end of the bolt and then tie it, significantly saving labor.

[0013] 2. Place each bolt in a compartment separately so that the bolts do not touch each other. This effectively avoids collision between bolts when the crane lifts the bolts, reducing the possibility of damage to the bolts.

[0014] 3. After the device is filled with bolts, when installing bolts on the turbine, the bolts can be directly pushed to the side of the turbine through the device, which can effectively shorten the lifting distance of the crane and improve the lifting efficiency. At the same time, during the trial installation, if the size adjustment does not meet the requirements and the bolts need to be put back, the lifting distance when the bolts are put back to their original positions is also shortened, which greatly improves the installation efficiency of the bolts.

[0015] 4. The horizontal and vertical bars form a holding grid that limits the top of the bolt to prevent it from shaking significantly during movement. The positioning pins inserted into the threaded holes of the bolts limit the bottom of the bolts to prevent them from shaking and shifting during movement. This effectively improves the stability of the bolts during movement and prevents them from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a steam turbine bolt placement rack according to the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the midsole structure. DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] The reference numerals in the drawings of the specification include: bolt 1 , limit frame 2 , vertical rod 3 , support rod 4 , limit pin 5 , bottom plate 6 , and self-locking roller 7 .

[0020] The embodiment is basically as shown in the attached Figure 1 and attached Figure 2 As shown:

[0021] A steam turbine bolt 1 placement rack includes a base plate 6, and multiple vertical support rods 4 are fixedly connected to the edges of the base plate 6 at intervals. The tops of the multiple support rods 4 are fixedly connected to the same horizontally arranged rectangular limit frame 2. A positioning element is fixedly connected inside the limit frame 2. The positioning element includes multiple horizontal bars and multiple vertical bars 3. The multiple horizontal bars and the multiple vertical bars 3 are crisscrossed and arranged in a well shape to form multiple accommodating grids. The multiple horizontal bars and the multiple vertical bars 3 are all fixedly connected in the limit frame 2, and a rubber pad is fixedly connected to the inner wall of each accommodating grid.

[0022] There are several vertical positioning pins evenly distributed on the base plate 6. The positioning pins correspond to the storage compartments one by one, and the positioning pins are located directly below the center point of the storage compartments. Four self-locking rollers 7 are fixedly connected to the lower surface of the base plate 6. The four self-locking rollers 7 are distributed in a rectangular shape in the four directions of the base.

[0023] The specific implementation process is as follows:

[0024] After unpacking and inspecting the bolt 1, lift it with a crane and place it in the storage compartment. When placing the bolt 1, the bolt 1 is in a fixed position and is gradually placed vertically downward along the center of the storage compartment until the bottom of the bolt 1 contacts the bottom plate 6 and the positioning pin is inserted into the threaded through hole of the bolt 1. When the steam turbine needs to install the bolt 1, the entire placement rack is pushed by pushing the support rod 4 to move the bolt 1. After it is moved to the side of the steam turbine, the self-locking roller 7 is locked to prevent the roller from rotating. At this time, tie the lifting rope to the top of the bolt 1, then lift it vertically upward with the crane, and then move it to the steam turbine for installation of the bolt 1. If the trial installation does not meet the requirements and the bolt 1 needs to be removed for readjustment, tie the lifting rope to the upper part of the bolt 1 again, and then use the crane to lift the bolt 1 back into the storage compartment.

Claims

1. A steam turbine bolt placement rack, characterized by: It includes a base plate, at the edge of which are fixedly connected a plurality of vertical support rods at intervals, the top ends of the plurality of support rods are fixedly connected to a same horizontally arranged rectangular limit frame, within which a positioning element is fixedly connected, and the positioning element is used to separate a plurality of bolts and place them in a vertical state.

2. The steam turbine bolt placement rack according to claim 1, characterized in that: The positioning element includes multiple horizontal bars and multiple vertical bars. The multiple horizontal bars and the multiple vertical bars are crisscrossed and arranged in a well shape to form multiple accommodating grids. The multiple horizontal bars and the multiple vertical bars are fixedly connected in the limit frame.

3. The steam turbine bolt placement rack according to claim 2, characterized in that: A rubber pad is fixedly connected to the inner wall of each containing compartment.

4. The steam turbine bolt placement rack according to claim 3, characterized in that: A plurality of vertical positioning pins are evenly distributed on the bottom plate. The positioning pins correspond to the accommodating grids one by one, and the positioning pins are located directly below the center points of the accommodating grids.

5. The steam turbine bolt placement rack according to claim 4, characterized in that: Four rollers are fixedly connected to the lower surface of the base plate, and the four rollers are distributed in four directions of the base in a rectangular shape.

6. The steam turbine bolt placement rack according to claim 5, characterized in that: The roller is made of a self-locking roller.

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