A water pump shaft adjustment fixture

Abstract

This utility model discloses a water pump shaft adjustment fixture, relating to the technical field of auxiliary equipment for horizontal water pump installation in power plants. It includes a U-shaped pipe clamp, a clamping seat, and a crossbeam. The U-shaped pipe clamp is held on one side of the coupling; the top end of the U-shaped pipe clamp can pass through the clamping seat and be fixed by a fastening nut; the crossbeam has a horizontal part and a vertical part, one end of the horizontal part is connected to the vertical part, and the other end of the horizontal part is connected to the clamping seat via a first connecting rod, and the horizontal part can reciprocate along the height direction of the clamping seat; the middle of the horizontal part and the bottom of the vertical part are connected to dial indicators via a second connecting rod, with the probes of the two dial indicators located on the same side of the horizontal and vertical parts. This utility model solves the inconvenience caused by equipment space and position limitations when using magnetic bases to mount dial indicators on couplings, and also solves the problem of inaccurate dial indicator readings due to weak magnetic attraction of the magnetic base.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for the installation of horizontal water pumps in power plants, and in particular to a tooling for adjusting the shaft of a water pump. Background Technology

[0002] During the installation and maintenance of hydro-generator units, after the horizontal water pump in the unit's water supply system is coupled to the motor, the concentricity of the coupling's back-end rollers must be checked. The back-end rollers must be precisely aligned and centered during installation; otherwise, significant stress will be generated on the coupling, severely affecting the normal operation of the shaft, bearings, and other parts on the shaft, and may even cause vibration or damage to the entire machine and foundation, shortening the service life of the water pump and motor. Therefore, adjusting the water pump shaft is one of the most important steps in the installation and maintenance of hydro-generator units.

[0003] During water pump installation, the concentricity of the pump and motor shafts is crucial for the normal operation of the machine. The rotation centers of the two shafts connected by the pump and motor coupling must be strictly concentric; otherwise, significant stress will be induced in the coupling, severely affecting the normal operation of the shafts, bearings, and other parts on the shafts. This can lead to excessive pump vibration, low efficiency, and even vibration or damage to the entire machine and foundation. Currently, a magnetic base is used to attach to the coupling, and the shaft reading is monitored by adjusting the base connecting rod and the position of the dial indicator. However, during use, unstable magnetic attachment can occur, thus affecting the monitoring of the shaft.

[0004] Therefore, those skilled in the art have provided a water pump shaft adjustment tool to solve the problems mentioned in the background art. Utility Model Content

[0005] This utility model provides a water pump shaft adjustment fixture that can securely fix a dial indicator to the coupling between the motor and the water pump, creating favorable working conditions for adjusting the concentricity of the water pump and motor shafts.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a water pump shaft adjustment fixture, comprising:

[0008] U-shaped pipe clamp, wherein the U-shaped pipe clamp is held on one side of the coupling;

[0009] The clamping seat, wherein the top end of the U-shaped pipe clamp can pass through the clamping seat and be fixed by a fastening nut;

[0010] A crossbeam has a horizontal section and a vertical section. One end of the horizontal section is connected to the vertical section, and the other end of the horizontal section is connected to a clamping seat via a first connecting rod. The horizontal section can reciprocate along the height direction of the clamping seat. The middle part of the horizontal section and the bottom of the vertical section are connected to a dial indicator via a second connecting rod. The probes of the two dial indicators are located on the same side of the horizontal and vertical sections.

[0011] Furthermore, a vertical rod is provided at the center of the top surface of the clamping seat, and the vertical rod passes through the first buckle on the first connecting rod.

[0012] Furthermore, the clamping base includes a base plate, and vertical plates are respectively provided at both ends of the bottom surface of the base plate. The top of the U-shaped tube clamp is located between the two vertical plates, and the top end of the U-shaped tube clamp passes through the base plate.

[0013] Furthermore, the bottom center of each vertical plate is recessed inward to form an arc-shaped groove, which, when combined with a U-shaped pipe clamp, can clamp the input end of the water pump and the output end of the motor.

[0014] Furthermore, the end of the horizontal section near the vertical pole passes through the first connecting rod, and the end of the first connecting rod near the vertical pole is provided with a first locking nut.

[0015] Furthermore, the horizontal and vertical portions pass through the corresponding second connecting rods, and the second buckle on the second connecting rod can fasten the probe protective sleeve on the corresponding dial indicator. A second locking nut is provided at the end of the second connecting rod away from the second buckle.

[0016] In the above technical solution, the water pump shaft adjustment fixture provided by this utility model has the following beneficial effects: This application solves the problem of inaccurate dial gauge readings caused by the insecure magnetic attraction of the magnetic gauge holder, and also solves the inconvenience caused by equipment space and position when using the magnetic gauge holder to install the dial gauge on the coupling. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the structure of a water pump shaft adjustment fixture provided in an embodiment of this utility model;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 for Figure 1 Side view;

[0021] Figure 4 for Figure 1 Top view;

[0022] Figure 5 for Figure 1 Front view of the middle clamping seat;

[0023] Figure 6 for Figure 5 Side view.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. U-shaped pipe clamp;

[0026] 20. Clamping seat; 21. Fastening nut; 22. Upright pole; 23. Base plate; 24. Vertical plate; 25. Arc groove;

[0027] 30. Crossbeam; 31. Horizontal section; 32. Vertical section; 33. Dial indicator; 34. Probe; 35. Probe protective sleeve;

[0028] 40. First connecting rod; 41. First buckle; 42. First locking nut;

[0029] 50. Second connecting rod; 51. Second buckle; 52. Second locking nut. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] See Figure 1-4 As shown;

[0032] The water pump shaft adjustment fixture described in this embodiment of the utility model includes:

[0033] U-shaped pipe clamp 10, wherein the U-shaped pipe clamp 10 is clamped on one side of the coupling;

[0034] The clamping seat 20, the top end of the U-shaped pipe clamp 10 can pass through the clamping seat 20 and be fixed by the fastening nut 21;

[0035] A crossbeam 30 has a horizontal section 31 and a vertical section 32. One end of the horizontal section 31 is connected to the vertical section 32, and the other end of the horizontal section 31 is connected to the clamping seat 20 via a first connecting rod 40. The horizontal section 31 can reciprocate along the height direction of the clamping seat 20. The middle part of the horizontal section 31 and the bottom of the vertical section 32 are connected to a dial indicator 33 via a second connecting rod 50. The probe 34 of the dial indicator 33 on the horizontal section 31 is arranged parallel to the vertical section 32, and the probe 34 of the dial indicator 33 on the vertical section 32 is arranged parallel to the horizontal section 31. The probes 34 of the two dial indicators 33 are located on the same side of the horizontal section 31 and the vertical section 32. The dial indicator 33 on the horizontal section 31 can move along the length direction of the horizontal section 31, and the dial indicator 33 on the vertical section 32 can move along the length direction of the vertical section 32.

[0036] In practical use, the U-shaped pipe clamp 10 is clamped at the motor output end or the water pump input end. The height of the horizontal part 31 and the position of the dial indicator 33 on the horizontal part 31 are adjusted to prevent the probe 34 of the dial indicator 33 from colliding with the coupling. Then, the clamping seat 20 is connected and fixed to the top of the U-shaped pipe clamp 10 by the fastening nut 21. The two dial indicators 33 are adjusted to suitable positions to monitor the axis of the water pump input end and the motor output end. Through the cooperation of the U-shaped pipe clamp 10 and the clamping seat 20, the tooling of this application can be stably fixed to facilitate monitoring and will not affect the monitoring due to instability.

[0037] See Figure 5-6 As shown;

[0038] A vertical rod 22 is provided at the center of the top surface of the clamping seat 20. The vertical rod 22 passes through the first buckle 41 on the first connecting rod 40. By adjusting the tightness of the first buckle 41, the staggered position between the horizontal part 31 and the vertical rod 22 can be adjusted.

[0039] The clamping base 20 includes a base plate 23, and vertical plates 24 are respectively provided at both ends of the bottom surface of the base plate 23. The top of the U-shaped tube clamp 10 is located between the two vertical plates 24, and the top end of the U-shaped tube clamp 10 passes through the base plate 23.

[0040] The bottom center of each vertical plate 23 is recessed inward to form an arc-shaped groove 25. The arc-shaped groove 25 cooperates with the U-shaped pipe clamp 10 to clamp the input end of the water pump and the output end of the motor.

[0041] See Figure 1-4 As shown;

[0042] The end of the horizontal part 31 near the upright 22 passes through the first connecting rod 40. The end of the first connecting rod 40 near the upright is provided with a first locking nut 42. Rotating the first locking nut 42 can lock or loosen the first buckle 41.

[0043] The horizontal part 31 and the vertical part 32 respectively pass through the corresponding second connecting rod 50. The second buckle 51 on the second connecting rod 50 can fasten the probe protective sleeve 35 on the corresponding dial indicator 33. A second locking nut 52 is provided at the end of the second connecting rod 50 away from the second buckle 51. Rotating the second locking nut 52 can tighten / release the vertical part 32 and the horizontal part 31.

[0044] During operation, the U-shaped pipe clamp 10 is securely clamped to one side of the coupling. Using the U-shaped pipe clamp 10 as a support point, an adjustable-length, adjustable-angle upright 22 and a crossbeam 30 extend from it. Rotating the first locking nut 42 adjusts the height of the crossbeam 30 on the upright 22 and the angle between the crossbeam 30 and the pump shaft. Rotating the two second locking nuts 52 adjusts the positions of the two dial indicators 33 on the vertical section 32 and the horizontal section 31. The vertical upright 22 can be directly welded to the pipe clamp 23. The dial indicator 33 can be adjusted to move 260mm on the horizontal section 31 and 50mm on the vertical section 32. The dial indicators 33 are then installed at the desired monitoring positions on the horizontal section 31 and the vertical section 32 of the crossbeam 30 for shaft adjustment. The tooling in this application solves the inconvenience caused by the space and position of the equipment when using a magnetic base to install a dial indicator on the coupling. It also solves the problem of inaccurate dial indicator readings caused by the magnetic base not being firmly attached.

[0045] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water pump axis adjustment tool characterized by, include: U-shaped pipe clamp (10), the U-shaped pipe clamp (10) is clamped on one side of the coupling; The clamping seat (20) is such that the top end of the U-shaped pipe clamp (10) can pass through the clamping seat (20) and be fixed by a fastening nut (21); A crossbeam (30) has a horizontal part (31) and a vertical part (32). One end of the horizontal part (31) is connected to the vertical part (32), and the other end of the horizontal part (31) is connected to the clamping seat (20) via a first connecting rod (40). The horizontal part (31) can reciprocate along the height direction of the clamping seat (20). The middle part of the horizontal part (31) and the bottom of the vertical part (32) are connected to a dial indicator (33) via a second connecting rod (50). The probes (34) of the two dial indicators (33) are located on the same side of the horizontal part (31) and the vertical part (32).

2. The water pump axis adjustment tool of claim 1, wherein: A vertical rod (22) is provided at the center of the top surface of the clamping seat (20), and the vertical rod (22) passes through the first buckle (41) on the first connecting rod (40).

3. The water pump axis adjustment tool of claim 2, wherein: The clamping base (20) includes a base plate (23), and vertical plates (24) are respectively provided at both ends of the bottom surface of the base plate (23). The top of the U-shaped tube clamp (10) is located between the two vertical plates (24), and the top of the U-shaped tube clamp (10) passes through the base plate (23).

4. The water pump axis adjustment tool of claim 3, wherein: The bottom center of each vertical plate (24) is recessed inward to form an arc-shaped groove (25).

5. The water pump axis adjustment tool of claim 1, wherein: The end of the horizontal part (31) near the upright (22) passes through the first connecting rod (40), and the end of the first connecting rod (40) near the upright is provided with a first locking nut (42).

6. The water pump shaft adjustment fixture according to claim 1, characterized in that: The horizontal part (31) and the vertical part (32) pass through the corresponding second connecting rod (50) respectively. The second buckle (51) on the second connecting rod (50) can fasten the probe protective sleeve (35) on the corresponding dial indicator (33). A second locking nut (52) is provided at the end of the second connecting rod (50) away from the second buckle (51).

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