A fixed type dial gauge support

Abstract

The utility model belongs to generator set overhauling equipment technical field, specifically disclose a fixed type dial gauge support, including fixed plate, be equipped with two holes on the fixed plate, be equipped with fixed rod and fixed frame respectively on the hole, fixed rod and fixed frame install in the same side of fixed plate, install fixed rod and fixed frame's hole between fixed plate and be equipped with small round hole, small round hole is used for installing the dial gauge of measuring coupling end face data, the fixed frame is used for installing the dial gauge of measuring coupling circumference surface data, through fixed frame and fixed rod will dial gauge be fixed on coupling, its simple structure, can adjust fixed dial gauge through adjusting bolt, it is easy to adjust, whole equipment structural stability is strong, utilizes bolt fixed, its operating personnel is fixed convenient, and the practicality is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of generator set maintenance equipment, specifically relating to a fixed dial indicator bracket. Background Technology

[0002] During the alignment of the turbine generator shaft system, a dial indicator is typically mounted on a magnetic base. By moving the magnetic base, the measuring head of the dial indicator is gently brought into contact with the end face and circumference of the coupling. The position and angle of the base are adjusted to ensure that the measuring head of the dial indicator is perpendicular to the surface being measured, thus obtaining accurate measurement results. The data of the coupling at different angular positions are measured by rotating the rotor. After simple calculations, the center of the turbine and generator shaft systems is adjusted based on the obtained data, ultimately aligning the center lines of the turbine and generator shafts.

[0003] The above-mentioned shaft center alignment process requires the use of two or more magnetic bases to fix the dial indicator to complete the operation. The magnetic bases take a long time to adjust, the labor intensity of the operators is high, and weak magnetic force will cause the dial indicator to deviate from its position, resulting in large data errors. In addition, if the dial indicator base is accidentally touched during the measurement process, it will cause the magnetic indicator to shift, which will increase the measurement error and affect the accuracy of the data. The dial indicator used to measure the circumferential surface has a small measuring space and is not easy to adjust, resulting in low work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a fixed dial indicator bracket, which has the advantages of simple structure, convenient operation, high work efficiency and low labor intensity. It can avoid the problems of inaccurate measurement data caused by complicated adjustment of the dial indicator base, small measurement space and accidental collision of the dial indicator base.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fixed dial indicator bracket includes a fixed plate with two holes. A fixed rod and a fixed bracket are respectively installed in the holes. The fixed rod and the fixed bracket are installed on the same side of the fixed plate. A small round hole is provided between the holes on the fixed plate for installing the fixed rod and the fixed bracket. The small round hole is used to install a dial indicator for measuring the end face data of the coupling. The fixed bracket is used to install a dial indicator for measuring the circumferential surface data of the coupling.

[0007] Preferably, the fixing frame is bolted to the fixing plate, and the fixing frame is provided with a dial indicator clamp. The fixing frame is installed with fastening bolt II, and the dial indicator clamp is used to install a dial indicator for measuring the circumferential surface data of the coupling.

[0008] Preferably, the fixing rod has a threaded structure, one end of the fixing rod is fixed to the fixing plate by bolts, and the other end of the fixing rod is fitted with a tapered pin by bolts.

[0009] Preferably, the holes for mounting the fixing rod and the fixing bracket on the fixing plate are strip-shaped holes.

[0010] Preferably, the upper side of the fixing plate is provided with a through hole, and a fastening bolt I is provided in the through hole, and the through hole corresponds to the small round hole.

[0011] Preferably, the conical pin has a stepped structure.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a fixing frame and a fixing rod to fix the dial indicator for measuring the end face data and the dial indicator for measuring the circumferential surface data of the coupling to the coupling. Its structure is simple, and the dial indicator can be adjusted by adjusting bolts. It is easy to adjust, the entire equipment structure has strong stability, and the bolt fixing makes it convenient for operators to fix and has high practicality.

[0014] 2. This utility model allows for the adjustment of the fixing bracket and fixing rod on the fixing plate by adjusting the size of the coupling, and then the dial indicator can be installed for measurement. It has a short operation time and high work efficiency.

[0015] 3. The tapered pin of this device has a stepped structure, which is suitable for couplings with different bolt hole diameters. It can be installed in the bolt holes of different couplings and is suitable for center alignment of various steam turbine generator shaft systems.

[0016] 4. It uses rigid structure fixing rods and fixing frames, and then uses bolts to fix the overall structure, which makes the connection stable and the measurement data highly accurate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an installation diagram of the present invention;

[0019] In the diagram: 1. Fixing plate, 2. Fixing rod, 3. Fixing bracket, 5. Fastening bolt I, 6. Tapered pin, 7. Dial indicator clamp, 8. Fastening bolt II. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figure 1A fixed dial indicator bracket includes a fixed plate 1 with two strip-shaped holes. The purpose of the strip-shaped holes is to facilitate the overall installation and adjustment of the bracket. A fixing rod 2 and a fixing bracket 3 are respectively installed on the holes. The fixing rod 2 and the fixing bracket 3 are installed on the same side of the fixed plate 1. A small round hole is provided between the holes for installing the fixing rod 2 and the fixing bracket 3. The small round hole is used to install a dial indicator for measuring the end face data of the coupling. The fixing bracket 3 is used to install a dial indicator for measuring the circumferential surface data of the coupling.

[0022] The fixing frame 3 is installed on the fixing plate 1 by bolts. The fixing frame 3 is equipped with a dial indicator clamp 7. The fixing frame 3 is installed with the dial indicator clamp 7 by fastening bolt II8. The dial indicator clamp 7 is used to install a dial indicator for measuring the circumferential surface data of the coupling.

[0023] The fixing rod 2 is provided with a threaded structure. One end of the fixing rod 2 is fixed to the fixing plate 1 by bolts, and the other end of the fixing rod 2 is installed with a tapered pin 6 by bolts. The tapered pin 6 has a stepped structure to accommodate different sizes of coupling bolt holes. It is suitable for couplings with different bolt hole diameters and can be installed in the bolt holes of different couplings. It is suitable for center alignment operations of various steam turbine generator shaft systems.

[0024] The upper side of the fixing plate 1 is provided with a through hole, and a fastening bolt I5 is provided in the through hole. The through hole corresponds to the small round hole. Its purpose is to fix the dial indicator that measures the end face data of the coupling installed in the small round hole. The fastening bolt I5 is screwed into the through hole, and then one end of the fastening bolt I5 acts on the mounting rod of the dial indicator installed in the small round hole. Tightening the fastening bolt I5 makes the dial indicator fixedly installed in the small round hole.

[0025] like Figure 2 In practical use, firstly, connect the fixing plate 1 to the fixing frame 3 using fastening bolts and nuts. Then, install the dial indicator measuring the end face and circumferential surface of the coupling on the fixing plate 1 and the dial indicator fixing frame 3 respectively. Next, pass the fixing rod 2 directly through the coupling bolt hole, and then connect and tighten the fixing rod 2 and the fixing plate 1 with the fixing nut. Utilizing the stepped conical pin 6 on the fixing rod 2, a clearance fit is formed between the stepped conical pin 6 and the coupling bolt hole, thus fixing the dial indicator bracket as a whole onto the coupling. Before performing shaft center alignment, ensure that the bolts and nuts used for fixing and tightening are tightened, and that the bracket is not loose. Adjust the position and angle of the bracket so that the dial indicator measuring head is perpendicular to the surface being measured before proceeding with the operation to ensure the accuracy of the measurement data. This utility model has an ingenious structure, is convenient and practical, and is economical and efficient.

Claims

1. A fixed dial indicator bracket, comprising a fixing plate, characterized in that: The fixing plate (1) has two holes, and a fixing rod (2) and a fixing bracket (3) are respectively provided on the holes. The fixing rod (2) and the fixing bracket (3) are installed on the same side of the fixing plate (1). A small round hole is provided between the holes on the fixing plate (1) where the fixing rod (2) and the fixing bracket (3) are installed. The small round hole is used to install a dial indicator for measuring the end face data of the coupling. The fixing bracket (3) is used to install a dial indicator for measuring the circumferential surface data of the coupling.

2. A fixed dial indicator bracket according to claim 1, characterized in that: The fixing frame (3) is bolted to the fixing plate (1). The fixing frame (3) is provided with a dial indicator clamp (7). The fixing frame (3) is secured by fastening bolts. (8) Install the dial indicator clamp (7), which is used to install the dial indicator for measuring the circumferential surface data of the coupling.

3. A fixed dial indicator bracket according to claim 1, characterized in that: The fixing rod (2) is provided with a threaded structure. One end of the fixing rod (2) is fixed to the fixing plate (1) by bolts, and the other end of the fixing rod (2) is fitted with a tapered pin (6) by bolts.

4. A fixed dial indicator bracket according to claim 1, characterized in that: The holes on the fixing plate (1) for installing the fixing rod (2) and the fixing bracket (3) are strip-shaped holes.

5. A fixed dial indicator bracket according to claim 1, characterized in that: The upper side of the fixing plate (1) is provided with a through hole, and a fastening bolt is provided in the through hole. (5) The through hole corresponds to the small round hole.

6. A fixed dial indicator bracket according to claim 3, characterized in that: The conical pin (6) has a stepped structure.

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