Turbine shell tongue range measuring device

Abstract

The utility model relates to a turbine casing tongue range measuring device, which comprises a bearing plate, a gauge body and a probe, the bearing plate is provided with the gauge body, the gauge body comprises a connecting rod and a connecting plate, and the lower section of the connecting rod is provided with the connecting plate which can be matched with the bearing plate; a positioning plane is arranged on one side of the lower end of the connecting rod, a connecting hole is formed in the middle of the lower end of the plane, an installation rod capable of being matched with the connecting hole is arranged at one end of the probe, and a positioning boss capable of being matched with the positioning plane is arranged at the end of the installation rod. The device is simple in structure and convenient to measure, the functions of a go gauge and a no-go gauge are realized by replacing the probe, the size of the tongue range of the turbine shell is rapidly measured, and on-site quality control is facilitated; the measuring resources of the three-coordinate instrument are saved, the time for assembling the turbine shell on the three-coordinate instrument is also saved, the production efficiency is improved, and manpower and material resources are saved in a disguised manner.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine shells, in particular to a turbine shell tongue range measurement. Background Art

[0002] Some turbine shells have special structures, and the range size of the turbine shell tongue on the drawing needs to be guaranteed. Usually, the turbine shell is cast, and the inside of the turbine shell needs to be shaped after machining. The vibration of the casting during machining will affect the size of the turbine shell tongue. The size of the turbine shell tongue is currently measured by a three-coordinate instrument. The detection process takes a long time and cannot achieve 100% full inspection, which is inconvenient and affects production efficiency. Summary of the invention

[0003] The utility model aims to overcome the deficiencies in the prior art, solve the problem of inconvenience in measuring the size of the volute tongue range in a turbine shell, and provide a turbine shell tongue range measuring device.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] The turbine casing tongue range measuring device comprises a supporting plate, a gauge body and a probe, wherein the supporting plate is provided with the gauge body, the gauge body comprises a connecting rod and a connecting plate, the lower section of the connecting rod is provided with a connecting plate capable of cooperating with the supporting plate; a positioning plane is provided on one side of the lower end of the connecting rod, a connecting hole is provided in the middle of the lower end of the positioning plane, one end of the probe is provided with a mounting rod capable of cooperating with the connecting hole, and the end of the mounting rod is provided with a positioning boss capable of cooperating with the positioning plane.

[0006] Preferably, the supporting plate is triangular in shape as a whole, and the tip of the supporting plate is arc-shaped.

[0007] Preferably, a through hole is opened in the middle of the supporting plate, step holes are evenly distributed on the circumference of the supporting plate outside the through hole, and threaded holes corresponding to the step holes are opened on the connecting plate.

[0008] Preferably, the probe comprises a first measuring needle and a second measuring needle.

[0009] Preferably, the upper end of the gauge body is provided with a chamfer.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The utility model has a simple structure and is convenient for measurement. By replacing the probe, the functions of the go gauge and the stop gauge are realized, and the size of the tongue range of the turbine shell is quickly measured, which is beneficial to on-site quality control; it saves the measurement resources of the three-coordinate instrument, and also saves the time for assembling the turbine shell on the three-coordinate instrument, thereby improving production efficiency and saving manpower and material resources in disguise. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0013] Figure 2 This is a schematic cross-sectional view of the present utility model.

[0014] Figure 3 This is a schematic diagram of the supporting plate of the present utility model.

[0015] Figure 4 This is a schematic cross-sectional structure view of the present utility model.

[0016] In the figure: 1, supporting plate; 2, gauge body; 3, probe; 4, connecting rod; 5, connecting plate; 6, positioning plane; 7, connecting hole; 8, mounting rod; 9, positioning boss; 10, through hole; 11, stepped hole; 12, threaded hole; 13, chamfer; 14, first measuring probe; 15, second measuring probe. Detailed implementation manners

[0017] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0018] As Figures 1 - 4 shown, a measuring device for the tongue part range of a turbine housing includes a supporting plate 1, a gauge body 2 and a probe 3. The supporting plate 1 is provided with the gauge body 2. The supporting plate 1 can be erected at the port of the turbine housing. One end of the gauge body 2 can extend into the turbine housing, and the operator can hold the other end of the gauge body 2 and rotate the gauge body 2;

[0019] The gauge body 2 includes a connecting rod 4 and a connecting plate 5. A connecting plate 5 that can cooperate with the supporting plate 1 is provided at the lower section of the connecting rod 4. The gauge body 2 is fixed to the supporting plate 1 by the cooperation of the connecting plate 5 and the supporting plate 1;

[0020] A positioning plane 6 is provided on one side of the lower end of the connecting rod 4, and a connecting hole 7 is opened in the middle of the lower end of the positioning plane 6. One end of the probe 3 is provided with a mounting rod 8 that can cooperate with the connecting hole 7. The probe 3 is inserted into the connecting hole 7 by the mounting rod 8;

[0021] The end of the installation rod 8 is provided with a positioning boss 9 that can cooperate with the positioning plane 6. When the positioning boss 9 is in close contact with the positioning plane 6, it indicates that the probe 3 is installed in place. When the lower end of the gauge body 2 extends into the turbine housing, the probe 3 is at the position of the volute tongue. When the staff rotates the gauge body 2, the probe 3 can detect the size of the volute tongue.

[0022] Further, the whole supporting plate 1 is triangular, and the triangle has stability. The tip of the supporting plate 1 is arc-shaped, and the arc-shaped tip of the supporting plate 1 is convenient for mating with the outer circle of the turbine housing port.

[0023] Further, a through hole 10 is formed in the middle of the supporting plate 1, and the connecting rod 8 can pass through the through hole 10;

[0024] Step holes 11 are evenly distributed in a circle on the supporting plate 1 outside the through hole 10, and threaded holes 12 corresponding to the step holes 11 are formed in the connecting plate 5. Connecting screws can be arranged in the step holes 11, and the lower ends of the connecting screws are screwed into the threaded holes 12.

[0025] Further, the probe 3 includes a first measuring probe 14 and a second measuring probe 15. The first measuring probe 14 is equivalent to a go gauge. When measuring with the first measuring probe 14, the first measuring probe 14 can pass through the volute tongue of the turbine housing, and the gauge body 2 can rotate easily by 360°. The second measuring probe 15 is equivalent to a not-go gauge. When measuring with the second measuring probe 15, the second measuring probe 15 cannot pass through the volute tongue of the turbine housing, and the gauge body 2 cannot rotate by 360°.

[0026] Further, a chamfer 13 is provided at the upper end of the gauge body 2, and the chamfer 13 is convenient for the connecting rod 4 to be inserted into the through hole 10.

[0027] Working principle: When the present utility model is in use, first, the first measuring probe 14 is inserted into the connecting hole 7. The staff places the supporting plate 1 on the port of the turbine housing, and the lower end of the gauge body 2 extends into the turbine housing. Then, the upper end of the gauge body 2 is rotated. The first measuring probe 14 can pass through the volute tongue of the turbine housing, and the gauge body 2 can rotate easily by 360°. Then, the second measuring probe 15 is inserted into the connecting hole 7, and the gauge body 2 is rotated again. The second measuring probe 15 cannot pass through the volute tongue of the turbine housing, and the gauge body 2 cannot rotate by 360°, indicating that the size of the volute tongue of the turbine housing is qualified; otherwise, it is unqualified.

[0028] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present utility model. However, the present utility model is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these modifications and improvements are also regarded as the protection scope of the present utility model.

Claims

1. A turbine casing tongue range measuring device, comprising a support plate (1), a gauge body (2) and a probe (3), wherein: A gauge body (2) is arranged on the support plate (1), the gauge body (2) comprises a connecting rod (4) and a connecting plate (5), the lower section of the connecting rod (4) is provided with a connecting plate (5) capable of matching with the support plate (1); a positioning plane (6) is arranged on one side of the lower end of the connecting rod (4), a connecting hole (7) is opened in the middle of the lower end of the positioning plane (6), one end of the probe (3) is provided with a mounting rod (8) capable of matching with the connecting hole (7), and the end of the mounting rod (8) is provided with a positioning boss (9) capable of matching with the positioning plane (6).

2. A turbine casing tongue range measuring device according to claim 1, characterized in that: The supporting plate (1) is triangular in shape as a whole, and the tip of the supporting plate (1) is arc-shaped.

3. The turbine casing tongue range measuring device according to claim 1, characterized in that: A through hole (10) is provided in the middle of the support plate (1), step holes (11) are evenly distributed on the circumference of the support plate (1) outside the through hole (10), and threaded holes (12) corresponding to the step holes (11) are provided on the connecting plate (5).

4. The turbine casing tongue range measuring device according to claim 1, characterized in that: The probe (3) comprises a first measuring needle (14) and a second measuring needle (15).

5. The turbine casing tongue range measuring device according to claim 1, characterized in that: The upper end of the gauge body (2) is provided with a chamfer (13).

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