Centering tool for pulling steel wire on steam turbine partition plate

Abstract

The utility model belongs to the field of steam turbine installation, and particularly relates to a steam turbine partition plate steel wire drawing centering tool which comprises a bottom plate, a support and supporting rollers. The bottom plate is fixedly connected with the bracket, and the bracket is provided with an adjusting screw rod I; the end part of the bracket is connected with the supporting roller through an adjusting screw rod II; grooves are formed in the supporting rollers, and locking nuts are arranged on the first adjusting screw rod and the second adjusting screw rod. According to the steel wire drawing centering device for the steam turbine partition plate, the accuracy of centering of the steam turbine partition plate is improved, measurement errors are reduced, and the construction quality of centering work of the steam turbine partition plate is guaranteed.

Description

Technical Field

[0001] The present application belongs to the field of steam turbine installation, and in particular relates to a tool for pulling a steel wire to find the center of a steam turbine partition. Background Art

[0002] During the construction of the steam turbine body, centering the internal parts is one of the most important tasks. During the process of centering the internal parts, centering the partition is particularly important. As the most important part of the installation of the steam turbine body, the partitions are often misaligned and the deviations are large. The construction must meet the design requirements and relevant specifications, and the data differences after the construction is completed must also be taken into account. The usual matching method is: using the laser centering method to center the partition. The laser has an unsatisfactory centering effect due to the divergence of the light beam, especially when the distance is far, and the deviation is large, so the centering effect is not satisfactory. Conventional wire drawing is used for centering, because fine-tuning is often required. Usually, the wire drawing only uses heavy objects and a horizontal iron rod to support the wire. The fine-tuning accuracy is not enough, and deviations often occur. Adjustment takes a long time and is time-consuming and laborious. Utility Model Content

[0003] Based on the above problems, the present application relates to a tool for pulling wires for centering a steam turbine diaphragm with a simple structure and convenient use, and the technical solution is as follows:

[0004] A tool for pulling steel wires to find the center of a steam turbine partition comprises a base plate, a bracket, and a supporting roller; the base plate is fixedly connected to the bracket, and the bracket is provided with an adjusting screw rod 1; the end of the bracket is connected to the supporting roller via an adjusting screw rod 2; the supporting roller is provided with a groove, and the adjusting screw rod 1 and the adjusting screw rod 2 are both provided with locking nuts.

[0005] Preferably, the base plate is provided with a square groove, the bracket is a T-shaped structure, the T-shaped extension portion of the bracket is placed in the square groove of the base plate, and the two are connected by a pin shaft.

[0006] Preferably, the support roller is made of polytetrafluoroethylene, has an outer dimension of Φ50mm, and a center drilling dimension of M16×1.0mm.

[0007] Preferably, the groove width is 1 mm.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] The advantages of this device are that the adjustment amount is extremely fine when pulling the steel wire to find the center, and the stability is strong. The steel wire is not easy to move during operation, and it can be fine-tuned freely in four directions of up, down, left and right. The recorded data obtained during operation is more accurate and feasible. This equipment can be recycled, is easy to make, light and portable, and can be widely used in steam turbine installation projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 The utility model discloses a general design drawing of a tool component for finding the center of a steam turbine partition by pulling a steel wire.

[0011] Attached Figure 2 This is a top view.

[0012] Attached Figure 3 Design drawing for support roller.

[0013] Attached Figure 4 Design drawing for the pin shaft.

[0014] Attached Figure 5 Design drawing for adjusting bolts.

[0015] Attached Figure 6 Design drawing for the bracket.

[0016] In the figure, 1-base plate, 2-adjusting bolt 2, 3-support roller, 4-adjusting bolt 1, 5-pin shaft, 6-bracket, 7-locking nut. DETAILED DESCRIPTION

[0017] The utility model tool is described in detail below with reference to the accompanying drawings and through specific embodiments. The following implementation modes are explanations of the utility model tool, and the utility model tool is not limited to the following implementation modes.

[0018] A tool for pulling steel wires to find the center of a steam turbine partition comprises a base plate 1 (110*45*16, mm), a bracket 6 (100 mm long, 20 mm high, 20 mm wide at the T-shaped extension part, and 30 mm wide at the end), and a support roller 3; the base plate 1 is fixedly connected to the bracket 6, and an adjusting screw 1 4 is provided on the middle of the bracket 6; the end of the bracket 6 is connected to the support roller 3 via an adjusting screw 2 2 (M16×1.0); a 1 mm groove is provided on the support roller 3, and a locking nut 7 is provided on both the adjusting screw 1 4 and the adjusting screw 2 2.

[0019] The base plate 1 is provided with a square groove (30*20, mm), the bracket 6 is a T-shaped structure, the T-shaped extension part of the bracket is placed in the square groove of the base plate, and the two are connected by a pin shaft 5.

[0020] The supporting roller 3 is made of polytetrafluoroethylene, has an outer dimension of Φ50 mm, and a center drilling dimension of M16×1.0 mm.

[0021] Specific implementation method: insert the steel wire into the groove of the rotating wheel, tie weights at both ends of the steel wire to straighten the steel wire, use the adjusting screw 1 4 (M16×1.0) to adjust the vertical position of the steel wire; use the adjusting screw 2 2 to adjust the horizontal and vertical positions of the steel wire.

Claims

1. A tool for centering a steam turbine diaphragm by pulling a steel wire, characterized in that: It includes a base plate, a bracket, and a supporting roller; the base plate is fixedly connected to the bracket, and the bracket is provided with an adjusting screw 1; the end of the bracket is connected to the supporting roller through an adjusting screw 2; the supporting roller is provided with a groove, and the adjusting screw 1 and the adjusting screw 2 are both provided with locking nuts.

2. A tool for centering a steam turbine diaphragm by pulling a steel wire according to claim 1, characterized in that: The bottom plate is provided with a square groove, the bracket is a T-shaped structure, the T-shaped extension part of the bracket is placed in the square groove of the bottom plate, and the two are connected by a pin shaft.

3. A tool for centering a steam turbine diaphragm by pulling a steel wire according to claim 1, characterized in that: The support roller is made of polytetrafluoroethylene, has an overall size of Φ50mm, and a center drilling size of M16×1.0mm.

4. A tool for centering a steam turbine diaphragm by pulling a steel wire according to claim 1, characterized in that: The groove width is 1 mm.

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