Vibration detection device for turbine shell production

Abstract

The utility model relates to a vibration detection device for turbine shell production, which comprises a workbench and a mounting plate, the mounting plate is vertically and fixedly mounted on the workbench, a first cylinder is fixedly mounted on one side of the mounting plate, a detection ring is mounted at the output end of the first cylinder, a second cylinder is mounted on one side, far away from the first cylinder, of the mounting plate, and the detection ring is mounted at the output end of the second cylinder. A coating rod is fixedly mounted at the end of the second air cylinder. A motor is fixedly installed at the output end of the first air cylinder, a fixing frame is fixedly installed at the output end of the motor, the output end of the motor and the output end of the first air cylinder are collinearly arranged, and the detection ring is fixedly installed on the fixing frame. The detection ring is a circular ring made of resin, and the red pigment smeared on the coating rod can help operators to observe traces left on the detection ring by the impeller. The detection ring can protect the inner wall of the turbine shell from being scratched by the impeller.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine shell production, in particular to a vibration detection device for turbine shell production. Background Art

[0002] Before the turbine leaves the factory, it is necessary to detect the vibration of the impeller assembly. The turbine assembly and the turbine shell are preliminarily assembled, and then the impeller assembly is operated. The vibration of the impeller assembly during operation is detected by a vibration detection instrument.

[0003] The above method can detect the vibration of the impeller assembly, but when the impeller is running, if the vibration amplitude of the impeller is large, the impeller will damage the inner wall of the center hole of the turbine shell. The contact between the metal impeller and the metal turbine shell may cause the impeller and the turbine shell to be scrapped together, causing losses. Utility Model Content

[0004] The purpose of the present application is to provide a vibration detection device for turbine casing production to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A vibration detection device for turbine casing production includes a workbench and a mounting plate, wherein the mounting plate is vertically fixedly mounted on the workbench, a cylinder 1 is fixedly mounted on one side of the mounting plate, a detection ring is mounted on the output end of the cylinder 1, a cylinder 2 is mounted on the side of the mounting plate away from the cylinder 1, and a coating rod is fixedly mounted on the end of the cylinder 2. A motor is fixedly mounted on the output end of the cylinder 1, a fixing frame is fixedly mounted on the output end of the motor, the output end of the motor is collinearly arranged with the output end of the cylinder 1, and the detection ring is fixedly mounted on the fixing frame. The detection ring is a circular ring made of resin material, a plurality of notches are provided on the edge of the detection ring, and the fixing frame is a cross-shaped metal frame, and the notches of the detection ring are engaged and fixed with the ends of the fixing frame.

[0007] Preferably, a cylinder 3 is fixedly mounted on the outer wall of one side of the mounting plate away from the cylinder 1, a connecting plate is fixedly mounted on the output end of the cylinder 3, the cylinder 2 is fixedly mounted on the connecting plate, a connecting rod is fixedly mounted on the output end of the cylinder 2, and the coating rod is fixedly connected to the connecting rod. The cylinder 2 is arranged parallel to the cylinder 1, the output end of the cylinder 2 faces the detection ring, the connecting rod is a U-shaped rod, the coating rod is sleeved on the end of the connecting rod, and the coating rod is a cylindrical high-density sponge strip.

[0008] The utility model has the beneficial effects that: by providing the detection ring and the coating rod, the resin detection ring is milky white as a whole, and the red pigment applied by the coating rod can help operators observe the traces left by the impeller on the detection ring. The detection ring can protect the inner wall of the turbine shell from being scratched by the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the positional relationship between the coating rod and the detection ring in the utility model;

[0011] Figure 3 It is a schematic diagram of the positional relationship between the detection ring and the turbine shell when the detection ring is working in the utility model.

[0012] In the figure: 1. workbench; 2. mounting plate; 3. cylinder one; 4. detection ring; 5. motor; 6. fixing bracket; 7. cylinder two; 8. coating rod; 9. cylinder three; 10. connecting rod; 11. connecting plate. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more specific definition of the protection scope of the present invention. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention.

[0014] like Figure 1-3 A vibration detection device for turbine shell production shown in the figure includes a workbench 1 and a mounting plate 2, the mounting plate 2 is vertically fixedly mounted on the workbench 1, a cylinder 3 is fixedly mounted on one side of the mounting plate 2, a detection ring 4 is mounted on the output end of the cylinder 3, a cylinder 2 7 is mounted on the side of the mounting plate 2 away from the cylinder 3, and a coating rod 8 is fixedly mounted on the end of the cylinder 2 7. A motor 5 is fixedly mounted on the output end of the cylinder 3, a fixing frame 6 is fixedly mounted on the output end of the motor 5, the output end of the motor 5 is collinearly arranged with the output end of the cylinder 3, and the detection ring 4 is fixedly mounted on the fixing frame 6. The detection ring 4 is a circular ring made of resin material, and a plurality of notches are opened on the edge of the detection ring 4. The fixing frame 6 is a cross-shaped metal frame, and the notches of the detection ring 4 are fixedly engaged with the ends of the fixing frame 6.

[0015] The outer wall of the mounting plate 2 away from the cylinder 1 3 is fixedly mounted with the cylinder 3 9, the output end of the cylinder 3 9 is fixedly mounted with the connecting plate 11, the cylinder 2 7 is fixedly mounted on the connecting plate 11, the output end of the cylinder 2 7 is fixedly mounted with the connecting rod 10, and the coating rod 8 is fixedly connected with the connecting rod 10. The cylinder 2 7 is arranged parallel to the cylinder 1 3, the output end of the cylinder 2 7 faces the detection ring 4, the connecting rod 10 is a U-shaped rod, the coating rod 8 is sleeved on the end of the connecting rod 10, and the coating rod 8 is a cylindrical high-density sponge strip.

[0016] The turbine shell is fixedly installed on the workbench 1, and the operator installs the turbine impeller assembly and the turbine shell together, and the blades of the impeller are installed at the center hole of the turbine shell. In the initial state, the output end of cylinder three 9 is in an extended state, cylinder two 7 is located above cylinder one 3, and the paint rod 8 is located above the detection ring 4, and the output end of cylinder one 3 is not extended. The operator starts cylinder two 7, and cylinder two 7 extends the output end to push the connecting rod 10 fixedly connected at the output end forward. The connecting rod 10 drives the paint rod 8 forward, and the paint rod 8 absorbs the red water-based pigment. After the paint rod 8 moves to a certain position, cylinder three 9 recycles the output end, and the paint rod 8 descends. Then cylinder two 7 recycles the output end, and the paint rod 8 moves toward the inner wall of the detection ring 4. After cylinder two 7 is reclaimed a certain distance, the outer wall of the paint rod 8 fits with the inner wall of the detection ring 4. Then the motor 5 starts, driving the detection ring 4 to rotate, so that the inner wall of the detection ring 4 is evenly coated with red water-based paint, and then the cylinder two 7 extends out of the output end to drive the paint rod 8 to separate from the detection ring 4, and then the cylinder three 9 extends out of the output end to lift the cylinder two 7.

[0017] After the detection ring 4 is painted with red paint, the cylinder 3 pushes the detection ring 4 forward so that the detection ring 4 enters between the impeller blades and the inner wall of the center hole of the turbine shell. Then the impeller assembly starts, the blades begin to rotate, and a certain distance is left between the blades and the inner wall of the detection ring 4. If the vibration amplitude generated during the operation of the impeller assembly is small and meets the operation standard, the blades will not scratch the inner wall of the detection ring 4. If the vibration amplitude of the impeller assembly is large, the blades will scratch the inner wall of the detection ring 4. The detection ring 4 made of resin material is milky white as a whole, and the red paint applied by the paint rod 8 can help the operator observe the traces left by the impeller on the detection ring 4. The detection ring 4 can protect the inner wall of the turbine shell from being scratched by the impeller.

[0018] It should be noted that the parts not covered in the present invention are the same as the prior art or can be implemented by the prior art; the various drives in the present invention can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, motors, etc. in combination with connecting rods, guide rods, etc., and are not limited to the description in the specification and the structures in the drawings.

[0019] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A vibration detection device for turbine casing production, comprising a workbench (1) and a mounting plate (2), characterized in that: The mounting plate (2) is vertically fixedly mounted on the workbench (1); a cylinder 1 (3) is fixedly mounted on one side of the mounting plate (2); a detection ring (4) is mounted on the output end of the cylinder 1 (3); a cylinder 2 (7) is mounted on the side of the mounting plate (2) away from the cylinder 1 (3); a coating rod (8) is fixedly mounted on the end of the cylinder 2 (7).

2. The vibration detection device for turbine casing production according to claim 1, characterized in that: A motor (5) is fixedly mounted on the output end of the cylinder (3); a fixing frame (6) is fixedly mounted on the output end of the motor (5); the output end of the motor (5) and the output end of the cylinder (3) are arranged in a colinear manner; and the detection ring (4) is fixedly mounted on the fixing frame (6).

3. The vibration detection device for turbine casing production according to claim 2, characterized in that: The detection ring (4) is a circular ring made of resin material, a plurality of notches are provided at the edge of the detection ring (4), and the fixing frame (6) is a cross-shaped metal frame, the notches of the detection ring (4) are engaged and fixed with the ends of the fixing frame (6).

4. The vibration detection device for turbine casing production according to claim 1, characterized in that: A cylinder three (9) is fixedly mounted on the outer wall of the mounting plate (2) away from the cylinder one (3); a connecting plate (11) is fixedly mounted on the output end of the cylinder three (9); the cylinder two (7) is fixedly mounted on the connecting plate (11); a connecting rod (10) is fixedly mounted on the output end of the cylinder two (7); and the coating rod (8) is fixedly connected to the connecting rod (10).

5. The vibration detection device for turbine casing production according to claim 4, characterized in that: The second cylinder (7) is arranged in parallel with the first cylinder (3), the output end of the second cylinder (7) faces the detection ring (4), the connecting rod (10) is a U-shaped rod, the coating rod (8) is sleeved on the end of the connecting rod (10), and the coating rod (8) is a cylindrical high-density sponge strip.

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