A device for adding a temporary key phase to a rotating machine

Abstract

The present invention discloses a device for adding a temporary key phase to a rotating machine, which comprises a gun body. Inside the gun body, there is a gun core assembly facing the outlet of the gun body. At the top of the gun body, there is a gun core spring for providing power to the gun core assembly, and the bottom end of the gun core spring is connected to the top end of the gun core assembly. A positioning hole C is opened on the side wall at the upper end of the gun body, and a positioning button communicating with the gun core assembly is horizontally arranged in the positioning hole C. A positioning spring for providing auxiliary power to the positioning button is arranged between the tail end of the positioning button and the inner wall of the gun body. A retaining ring for positioning the extending position of the gun core assembly is arranged in the middle of the gun body, and an impact block with a diameter larger than the aperture of the retaining ring is arranged on the gun core assembly between the retaining ring and the positioning button. The structure of the present invention is simple and the operation is convenient. The gun core assembly is pushed out of the gun body by the impact force of the spring, and a reflective paper with a sticky surface can be quickly placed on the exposed shaft end of the rotating machine when the rotating machine is working.

Description

Technical Field

[0001] The present invention relates to the technical field of rotating machinery, and particularly to a device for adding a temporary key phase to a rotating machinery. Background Art

[0002] In high-speed rotating machinery such as steam turbines, generators, pumps, and fans, vibration inevitably occurs during operation. Vibration is the "thermometer" of rotating mechanical equipment, directly reflecting the safe and stable operation status of the equipment. When the vibration exceeds the specified limit, it will affect the safe and stable operation of the generator set. Excessive vibration may sometimes cause catastrophic accidents to the generator set.

[0003] When large vibrations occur in rotating equipment, how to diagnose vibration faults, find the causes of vibration, and perform vibration treatment in a timely manner has always been a concern for power plant technicians and vibration professionals. At present, however, there is a lack of effective key phases in high-speed rotating machinery such as pumps and fans. Therefore, to accurately find the cause of vibration and the location where it occurs, it is sometimes necessary to stop the pump and fan to stick reflective paper as a temporary key phase measurement point, which affects the economy and planned maintenance work of the unit.

[0004] Therefore, there is an urgent need for a device that can add a temporary key phase when the rotating machinery is rotating at high speed to solve the current problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a device for adding a temporary key phase to a rotating machinery, which can quickly place the reflective paper at the exposed shaft end of the rotating machinery.

[0006] To solve the above technical problems, the following technical solutions are adopted in the present invention.

[0007] A device for adding a temporary key phase to a rotating machinery includes a gun body. Inside the gun body, there is a gun core assembly facing the gun body outlet. At the top of the gun body, there is a gun core spring for providing power to the gun core assembly, and the bottom end of the gun core spring is connected to the top end of the gun core assembly. A positioning hole C is opened on the side wall at the upper end of the gun body, and a positioning button communicating with the gun core assembly is horizontally arranged in the positioning hole C. Between the tail end of the positioning button and the inner wall of the gun body, there is a positioning spring for providing auxiliary power to the positioning button. A retaining ring for positioning the extending position of the gun core assembly is arranged in the middle of the gun body, and an impact block with a diameter larger than the aperture of the retaining ring is arranged on the gun core assembly between the retaining ring and the positioning button.

[0008] In the above device for adding a temporary key phase to a rotating machinery, the gun core assembly includes an upper gun core and a lower gun core hinged by a positioning rotating shaft. The end of the upper gun core is connected to the gun core spring, and both the positioning button and the impact block are arranged on the upper gun core. The positioning rotating shaft is located below the impact block.

[0009] The above-mentioned device for adding a temporary key phase to a rotating machine, the lower end of the gun body is inclined in the direction of rotation of the lower gun core and is provided with a support bevel for buffering the lower gun core.

[0010] The above-mentioned device for adding a temporary key phase to a rotating machine, the end of the gun core of the lower gun core is provided with a sticky surface reflective paper for key phasing the rotating machine.

[0011] The above-mentioned device for adding a temporary key phase to a rotating machine, the gun core spring is arranged at the top of the gun body through the top cover.

[0012] The above-mentioned device for adding a temporary key phase to a rotating machine, the muzzle of the gun body is of an arc surface structure.

[0013] Due to the adoption of the above technical solutions, the technical progress achieved by the present invention is as follows.

[0014] The structure of the present invention is simple and the operation is convenient. The gun core assembly is pushed out of the gun body by the impact force of the spring. When the rotating machine is working, the reflective paper with a sticky surface can be quickly placed on the exposed shaft end of the rotating machine, which improves the key phasing speed and can also ensure the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is a schematic structural diagram when the present invention is working;

[0017] Among them: 1. Gun core spring, 2. Upper gun core, 3. Positioning button, 4. Positioning rotating shaft, 5. Retaining ring, 6. Lower gun core, 7. Support bevel, 8. Top cover, 9. Positioning spring, 10. Impact block, 11. Gun core end, 12. Gun body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0019] A device for adding a temporary key phase to a rotating machine, the structure of which is as Figure 1 shown, including a gun body 12, and a gun core assembly is arranged inside the gun body 12 for adding a key phase to the rotating machine.

[0020] A gun core spring 1 is arranged at the top of the gun body 12 to provide power for the gun core assembly, and the bottom end of the gun core spring 1 is connected to the top end of the gun core assembly.

[0021] The gun core spring 1 is arranged at the top of the gun body 12 through the top cover 8. When the power of the gun core spring is insufficient, the top cover 8 can be opened and a new gun core spring can be replaced.

[0022] The gun body assembly includes an upper gun core 2 and a lower gun core 6. The end of the upper gun core 2 is connected to the gun core spring 1. The bottom end of the upper gun core 2 is connected to the lower gun core 6 through a positioning rotating shaft 4. The gun core end 11 of the lower gun core 6 is provided with a reflective paper having an adhesive surface for the rotary machine key phase.

[0023] A positioning hole C is formed in the side wall at the upper end of the gun body 12. A positioning button 3 is horizontally arranged in the positioning hole C. The positioning button 3 is communicated with the upper gun core 2. A positioning spring 9 is arranged between the tail end of the positioning button 3 and the inner wall of the gun body 12 to provide auxiliary power for the positioning button and push the positioning button 3 out of the positioning hole C. When the positioning button 3 is at the positioning hole C, the gun core assembly is at the zero position in the A direction. After pressing the positioning button 3, under the action of the gun core spring, the whole gun core assembly shoots out in the A direction.

[0024] A retaining ring 5 is arranged in the middle of the gun body 12. The retaining ring 5 is sleeved on the lower gun core 6. The lower gun core 6 is close to the left side of the retaining ring 5, and the retaining ring 5 plays a guiding role for the lower gun core 6.

[0025] When the gun core assembly is not shot out, the positioning rotating shaft 4 is located above the retaining ring 5. An impact block 10 is arranged above the positioning rotating shaft 4. The diameter of the impact block 10 is larger than the aperture of the retaining ring 5. When the whole gun core assembly is about to shoot out in the A direction, the impact block 10 reaches the retaining ring 5, and the gun core assembly reaches the maximum displacement in the A direction. At this time, the positioning rotating shaft 4 is located at the lower middle part of the retaining ring 5.

[0026] The muzzle of the gun body 12 adopts an arc surface structure. The purpose is to avoid the rotating shaft as much as possible when the rotary machine is working. The lower end of the gun body 12 is inclined along the rotating direction of the lower gun core 6 and provided with a supporting bevel edge 7 for buffering the lower gun core 6. The supporting bevel edge 7 is arranged with an elastic surface as a buffer area when the lower gun core collides. When the rotary machine shaft rotates and a key phase is added using the key phase gun, a tangential force in the B direction will be given to the gun core assembly, causing the lower gun core to rotate along the B direction and stop when it reaches the buffer area of the supporting bevel edge 7.

[0027] The structural schematic diagram of the present invention during operation is as Figure 2As shown, when it is necessary to add a temporary key phase to the rotating machinery, hold the upper end of the gun body, press the positioning button, and the gun core assembly will be ejected to phase A under the action of the gun core spring. When the impact block reaches the retaining ring, the gun core assembly reaches the maximum displacement in the A direction. At this time, the end of the gun core will directly push the reflective paper with a sticky surface to the exposed shaft surface, so that the reflective paper and the shaft surface quickly fit together as a temporary key phase. When the rotating shaft of the rotating machinery rotates, after adding the key phase, the rotating shaft will give the gun core assembly a tangential force in the B direction, so that the lower gun core rotates along the B direction through the positioning shaft and stops in the supporting bevel buffer zone. When the rotating shaft of the rotating machinery rotates, the tangential force generated when it contacts the gun core is completely applied to the gun core, and the lower gun core rotates to the buffer bevel, reducing the direct force of the shaft on the gun body and improving the safety of the operator when it is hand-held.

[0028] After the key phase is completed, the operator manually straightens and resets the lower gun core. After the lower gun core is reset, the lower gun core is pushed upward. When the positioning button moves to the positioning hole C, the positioning button is pushed out of the positioning hole under the action of the positioning spring, and the reflective paper with a sticky sticker surface is placed on the end of the gun core, and the next key phase can be carried out.

Claims

1. A device for adding a temporary key phase to a rotating machine, characterized in that: it includes a gun body (12), and the muzzle of the gun body (12) is an arc-shaped surface structure; a gun core assembly facing the gun body outlet is arranged inside the gun body (12), a gun core spring (1) for providing power to the gun core assembly is arranged at the top of the gun body (12), and the bottom end of the gun core spring (1) is connected to the top end of the gun core assembly; a positioning hole C is opened on the side wall at the upper end of the gun body (12), and a positioning button (3) communicating with the gun core assembly is horizontally arranged in the positioning hole C, and a positioning spring (9) for providing auxiliary power to the positioning button is arranged between the tail end of the positioning button (3) and the inner wall of the gun body (12); a retaining ring (5) for positioning the protruding position of the gun core assembly is arranged in the middle of the gun body (12), and an impact block (10) with a diameter larger than the aperture of the retaining ring is arranged on the gun core assembly between the retaining ring (5) and the positioning button (3); the gun core assembly includes an upper gun core (2) and a lower gun core (6) hinged through a positioning rotating shaft (4), the end of the upper gun core (2) is connected to the gun core spring (1), and both the positioning button (3) and the impact block (10) are arranged on the upper gun core (2); the positioning rotating shaft (4) is located below the impact block (10); the gun core end (11) of the lower gun core (6) is provided with a viscous surface reflective paper for key phasing the rotating machine.

2. The device for adding a temporary key phase to a rotating machine according to claim 1, characterized in that: a support bevel edge (7) for buffering the lower gun core (6) is inclinedly arranged at the lower end of the gun body (12) along the rotation direction of the lower gun core (6).

3. The device for adding a temporary key phase to a rotating machine according to claim 1, characterized in that: the gun core spring (1) is arranged at the top of the gun body (12) through a top cover (8).

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