Coaxiality alignment turning tool for fan

Abstract

The utility model discloses a fan coaxiality alignment turning tool which comprises a fan, a plurality of first connecting holes are symmetrically formed in a motor non-transmission side shaft head of the fan, the turning tool comprises a T-shaped connecting part and a T-shaped star plate, the transverse part of the T-shaped connecting part is connected with the end of the motor non-transmission side shaft head, and an oil sealing cover is arranged on the outer side of the longitudinal part of the T-shaped connecting part in a sleeved mode. The periphery of the oil sealing cover is flush with the shell of the motor; the longitudinal part of the T-shaped connecting part is clamped with the longitudinal part of the T-shaped astrolabe; a lead screw is vertically arranged on a non-transmission side shaft head of the motor, and the free end of the lead screw sequentially penetrates through the longitudinal portion of the T-shaped connecting portion and the oil sealing cover and then penetrates out of the center of the transverse portion of the T-shaped astrolabe along the longitudinal portion of the T-shaped astrolabe. During turning, a crowbar or a sleeve is connected to the operating rod of the T-shaped astrolabe for manual turning, time and labor are saved, the working intensity is small, external turning operation is implemented outside the fan, flue gas diffusion is avoided, the operation space is large, and safe and normal production is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of fan turning equipment, in particular to a fan coaxiality alignment turning tool. Background Art

[0002] Fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling. After a long period of downtime, the blades and rotating parts (such as hubs, bearings, etc.) may rust, corrode, deform, etc. due to long-term non-operation, which seriously affects the service life and operation effect of the equipment. Therefore, before restarting the fan, it is necessary to perform a cranking operation to confirm whether the impeller rotates flexibly and whether there is any jamming to ensure the normal operation of the equipment.

[0003] At present, when carrying out maintenance activities such as fan motor replacement, fan bearing grinding, motor coaxial alignment, etc., maintenance tasks that require turning can only be implemented during system maintenance, and during maintenance, multiple people are required to cooperate to enter the flue through the flue manhole door, walk along the flue to the lower casing of the fan to manually turn the impeller. Even for fans used in dual-machine equipment in series, it can only be implemented when both machines are completely stopped. When a single machine is in production, it is necessary to coordinate the complete stop and draw and block the blind plates separately to prevent smoke from entering. In addition to the normal power outage and listing procedures, the above operations also require the blind plates of the flue to be blocked, and the relevant procedures for confined space operations must be handled. In addition, air respirators, life ropes, low-voltage lighting and other equipment must be prepared, and supervisors must be set up. The entire turning and maintenance process is not only time-consuming and labor-intensive, affecting the production rhythm, but also the internal space of the fan body is small, and there are greater safety hazards in its internal operations, higher maintenance costs, and longer downtime. In severe cases, it will also cause production reduction or long-term shutdown. Utility Model Content

[0004] The utility model provides a fan coaxiality alignment turning tool, the purpose of which is to implement external turning operations through the tool, save time and labor, avoid flue gas diffusion, and ensure safe and normal production.

[0005] To achieve its purpose, the utility model adopts the following technical solutions:

[0006] A fan coaxiality alignment turning tool comprises a fan, wherein a plurality of first connecting holes are symmetrically arranged on the shaft head on the non-driving side of the motor of the fan, and the turning tool comprises a T-shaped connecting part and a T-shaped star plate, wherein the transverse part of the T-shaped connecting part is connected to the end part of the shaft head on the non-driving side of the motor, an oil sealing cap is sleeved on the outer side of the longitudinal part of the T-shaped connecting part, the outer periphery of the oil sealing cap is flush with the outer casing of the motor, and the longitudinal part of the T-shaped connecting part is clamped with the longitudinal part of the T-shaped star plate; a lead screw is vertically arranged on the shaft head on the non-driving side of the motor, and the free end of the lead screw successively penetrates the longitudinal part of the T-shaped connecting part and the oil sealing cap, and then passes through the center of the transverse part of the T-shaped star plate along the longitudinal part of the T-shaped star plate.

[0007] Furthermore, the transverse portion of the T-shaped star plate is in the shape of a disc, and a plurality of operating rods are equidistantly arranged on the outer circumference of the T-shaped star plate.

[0008] Furthermore, the angle between adjacent operating rods is 30-45°.

[0009] Furthermore, the operating rod is a round tube.

[0010] Furthermore, the outer diameter of the operating rod is 30-40 mm.

[0011] Furthermore, the outer diameter of the operating rod is greater than or equal to the thickness of the transverse portion of the T-shaped star plate.

[0012] Furthermore, a second connection hole corresponding to the first connection hole is provided on the transverse portion of the T-shaped connection portion.

[0013] Furthermore, the first connecting hole and the second connecting hole are both threaded holes, and the T-shaped connecting portion is connected to the shaft head on the non-driving side of the motor by means of bolts inserted into the first connecting hole and the second connecting hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The cranking tool provided by the utility model fixes the T-shaped connecting part on the non-drive side shaft head of the motor, and the longitudinal part of the T-shaped star plate is cross-clamped and locked with the longitudinal part of the T-shaped connecting part. The lead screw runs through the T-shaped connecting part and the T-shaped star plate, which plays the role of transmitting torque, ensuring that the connecting part and the T-shaped star plate do not deviate after the coaxiality is aligned, thereby ensuring the safety of the cranking. The oil sealing cap is sleeved on the non-drive side shaft head of the motor to play the role of sealing oil, ensuring that the lubricating oil does not leak. When cranking, a crowbar or a sleeve is connected to the operating rod of the T-shaped star plate to perform manual cranking, which saves time and effort, has low work intensity and high work efficiency. In addition, the external cranking operation is carried out outside the fan, with a large operating space, and can also avoid the diffusion of flue gas, thereby ensuring safe production.

[0016] 2. The turning tool provided by the utility model has its parts all made of scrap steel, achieving the purpose of repairing and reusing waste, meeting the national requirements for energy conservation and environmental protection, and has a light structure, light weight, small size, and a modular structure, which is easy to carry and can be widely promoted and used. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the T-shaped star disk structure of the utility model;

[0019] Figure 3 for Figure 2 A top view of

[0020] In the figure: 1-T-type connection part; 2-oil sealing cover; 3-T-type star plate; 4-screw; 5-motor non-drive side shaft head; 6-operating lever. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] like Figure 1-3 As shown, the utility model is a fan coaxiality alignment turning tool, comprising a fan, wherein four first connecting holes are symmetrically arranged on the non-transmission side shaft head 5 of the motor of the fan, and the turning tool comprises a T-shaped connecting part 1 and a T-shaped star plate 3, the transverse part of the T-shaped connecting part 1 is connected to the end of the non-transmission side shaft head of the motor, specifically, four second connecting holes corresponding to the first connecting holes are arranged on the transverse part of the T-shaped connecting part 1, the first connecting hole and the second connecting hole are both threaded holes, and the connecting part 1 is connected to the non-transmission side shaft head 5 of the motor by M30 bolts inserted into the first connecting holes and the second connecting holes. The outer side of the longitudinal part of the T-shaped connecting part 1 is sleeved with an oil sealing cap 2, and the outer periphery of the oil sealing cap 2 is flush with the outer shell of the motor to seal the oil and ensure that the lubricating oil does not leak; the longitudinal part of the T-shaped connecting part 1 is cross-clamped with the longitudinal part of the T-shaped star disk 3 to play the role of transmitting torque; the shaft head 5 on the non-driving side of the motor is vertically provided with a lead screw 4, and the free end of the lead screw 4 sequentially penetrates the longitudinal part of the T-shaped connecting part 1 and the oil sealing cap 2 and then passes through the longitudinal part of the T-shaped star disk 3 from the center of the transverse part of the T-shaped star disk 3. Among them, the transverse part of the T-shaped star disk 3 is disc-shaped with a thickness of 30mm, and eight circular tubular operating rods 6 with an outer diameter of 40mm are equidistantly welded on the outer periphery of the T-shaped star disk 3, and the angle between adjacent operating rods 6 is 45°.

[0023] When turning the fan, one end of the straight sleeve is put on the operating rod 6, and the sleeve is used as a crowbar. The operator holds the other end of the sleeve and presses down to perform manual turning. The operation process saves time and effort, and the work intensity is low. The purpose of implementing external turning on the outside of the fan is achieved, which avoids the diffusion of flue gas, has a large operating space, and is highly safe.

Claims

1. A fan coaxial alignment turning tool, comprising a fan, wherein a plurality of first connection holes are symmetrically arranged on a shaft head (5) on a non-drive side of a motor of the fan, and characterized in that: The turning tool comprises a T-shaped connecting part (1) and a T-shaped star plate (3); the transverse part of the T-shaped connecting part (1) is connected to the end of the shaft head (5) on the non-transmission side of the motor; an oil sealing cover (2) is sleeved on the outer side of the longitudinal part of the T-shaped connecting part (1); the outer periphery of the oil sealing cover (2) is flush with the outer shell of the motor; the longitudinal part of the T-shaped connecting part (1) is clamped with the longitudinal part of the T-shaped star plate (3); a lead screw (4) is vertically provided on the shaft head (5) on the non-transmission side of the motor; the free end of the lead screw (4) passes through the longitudinal part of the T-shaped connecting part (1) and the oil sealing cover (2) in sequence, and then passes through the longitudinal part of the T-shaped star plate (3) and out from the center of the transverse part of the T-shaped star plate (3).

2. A fan coaxiality alignment turning tool as claimed in claim 1, characterized in that: The transverse portion of the T-shaped star disk (3) is in the shape of a circular disk, and a plurality of operating rods (6) are equidistantly arranged on the outer circumference of the T-shaped star disk (3).

3. A fan coaxiality alignment turning tool as claimed in claim 2, characterized in that: The angle between adjacent operating rods (6) is 30-45°.

4. A fan coaxiality alignment turning tool as claimed in claim 3, characterized in that: The operating rod (6) is a round tube.

5. A fan coaxiality alignment turning tool as claimed in claim 4, characterized in that: The outer diameter of the operating rod (6) is 30-40 mm.

6. A fan coaxiality alignment turning tool as claimed in claim 5, characterized in that: The outer diameter of the operating rod (6) is greater than or equal to the thickness of the transverse portion of the T-shaped star plate (3).

7. A fan coaxiality alignment turning tool as claimed in any one of claims 1 to 6, characterized in that: The transverse portion of the T-shaped connecting portion (1) is provided with a second connecting hole corresponding to the first connecting hole.

8. A fan coaxiality alignment turning tool as claimed in claim 7, characterized in that: The first connection hole and the second connection hole are both threaded holes, and the T-shaped connection portion (1) is connected to the shaft head (5) on the non-driving side of the motor via bolts inserted into the first connection hole and the second connection hole.

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