CN218082531U

CN218082531U - Fan disassembling tool for excitation regulator power cabinet

Info

Publication number: CN218082531U
Application number: CN202222020599.8U
Authority: CN
Inventors: 马博超; 李水先
Original assignee: Hubei Qingjiang Hydroelectric Development Co ltd
Current assignee: Hubei Qingjiang Hydroelectric Development Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-12-20
Anticipated expiration: 2032-08-02

Abstract

The utility model provides an excitation regulator power cabinet fan assembly and disassembly tools, including the mounting panel, rotate sleeve and the torque wheel that sets up on the mounting panel and set up the moment of torsion transmission subassembly between sleeve and torque wheel, the moment of torsion transmission subassembly include that the coaxial driven gear that sets up on telescopic installation epaxial and rotate set up on the mounting panel and with driven gear meshing's driving gear, be provided with the hold-in range wheelset between the installation axle of driving gear and torque wheel, the external diameter of driving gear is less than driven gear's external diameter. The utility model provides a fan fixed screw dismouting in-process inhomogeneous problem of atress that exists among the prior art, produced the stability that improves assembly and disassembly tools and used and strengthened the effect of assembly and disassembly tools to the dismantlement of fan screw and the ability of installation.

Description

Fan disassembling tool for excitation regulator power cabinet

Technical Field

The utility model relates to a fan assembly and disassembly tools technical field especially relates to an excitation regulator power cabinet fan assembly and disassembly tools.

Background

A thyristor rectifier bridge is arranged in the power cabinet of the generator excitation system, and the rectifier bridge in the power cabinet can generate huge heat in the operation process of the excitation system. In the excitation system power cabinet, a fan system is arranged below the silicon controlled rectifier bridge and used for enhancing ventilation and reducing heat in the cabinet. The single fan system is provided with four cooling fans, and in the operation process of the rectifier cabinet, the air flow in the rectifier cabinet is increased to cool the silicon controlled rectifier bridge according to the operation modes of two main fans and two standby fans. When the cooling fan reaches the operating hours and an emergency situation occurs, the cooling fan needs to be replaced.

At present, because the ABB Unitrol 5000 type excitation system power cabinet 133 bridge cooling fan can be changed in a small space, and the internal fans are arranged compactly, when a tool is used, the problem that the length of a general tool is not enough or the direction is not smooth exists, and when the fan is changed in most power plants, a ratchet sleeve spanner is adopted to add an extension bar to serve as an operation tool. Ratchet sleeve pipe spanner is adding extension bar after for the sleeve pipe splicing section is too much or length overlength, and the range grow is rocked about in use, horizontal inhomogeneous moment about appearing. However, since the fixing screw of the cooling fan and the fan case are of an integral structure, once the fan is damaged, the whole fan system is scrapped and needs to be replaced by a new fan. Therefore, when the ratchet sleeve spanner with the extension rod is used for operation, the fixing screw can bear excessive left and right transverse uneven torque, and great hidden danger of part damage exists.

Therefore, the reasonable design is carried out according to the internal structure of the 133 bridge cooling fan unit of the ABB Unitrol 5000 type excitation system power cabinet, in particular to the mechanical structure near the fan fixing screw, and the reliable dismounting tool capable of effectively eliminating the transverse uneven moment in the process of dismounting the fan is provided. Reduce the damage hidden danger that the fan exists at the dismouting in-process.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides an excitation regulator power cabinet fan assembly and disassembly tools, it has solved the inhomogeneous problem of fan fixed screw dismouting in-process atress that exists among the prior art.

According to the utility model discloses an embodiment, an excitation regulator power cabinet fan assembly and disassembly tools, including the mounting panel, rotate sleeve and the torque wheel that sets up on the mounting panel and set up the torque transmission subassembly between sleeve and torque wheel, the torque transmission subassembly include that the coaxial driven gear that sets up on telescopic installation epaxial set up with rotate set up on the mounting panel and with driven gear meshing's driving gear, be provided with the synchronous pulley group between the installation axle of driving gear and the installation axle of torque wheel, the external diameter of driving gear is less than driven gear's external diameter.

Preferably, when the sleeve is sleeved on a screw of the fan, one end of the mounting plate abuts against a side wall of the fan.

Preferably, the sleeve is detachably connected to the mounting shaft of the driven gear.

Preferably, one end of the mounting plate, which is far away from the sleeve, is connected with a grab handle.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. through with the sleeve suit on the screw of fan, through the trompil cooperation at the rectangle piece on the ratchet spanner and torque wheel middle part, exert the moment of torsion to the torque wheel, the torque wheel passes through synchronous pulley group and drives the driving gear and rotate, and the driving gear drives driven gear and rotates, and then realizes telescopic rotation, through set up transmission structure between sleeve and torque wheel, improves the stability to screw application of force process.

2. The driving gear is a pinion gear, drives a large-size driven gear to rotate, amplifies torque, enables the sleeve to be capable of easily unscrewing a screw, and reduces the load of the synchronous pulley set.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a front view of the embodiment of the present invention.

In the above drawings: 1. mounting a plate; 2. a sleeve; 3. a driven gear; 4. a driving gear; 5. a driven synchronous pulley; 6. a synchronous belt; 7. a driving synchronous pulley; 8. a torque wheel; 9. a handle.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1-2, to stably unscrew the blower screw. The utility model provides an excitation regulator power cabinet fan assembly and disassembly tools, including mounting panel 1, rotate sleeve 2 and the torque wheel 8 that sets up on mounting panel 1 and set up the moment of torsion transmission subassembly between sleeve 2 and torque wheel 8, the moment of torsion transmission subassembly includes that the coaxial driven gear 3 that sets up on the installation epaxial of sleeve 2 sets up on mounting panel 1 and with driven gear 3 engaged driving gear 4 with rotating, be provided with the hold-in range wheelset between the installation axle of driving gear 4 and torque wheel 8's the installation axle, the external diameter of driving gear 4 is less than driven gear 3's external diameter.

Rotate on mounting panel 1 and be provided with three installation axle, be used for the connection respectively, driven gear 3 and sleeve 2, driven synchronous pulley 5 and driving gear and initiative synchronous pulley 7 and torque wheel 8, the counter bore is seted up at torque wheel 8's top, ratchet wrench's input can insert in the counter bore, rotate torque wheel 8 through ratchet wrench, torque wheel 8 drives initiative synchronous pulley 7, initiative synchronous pulley 7 passes through hold-in range 6 and drives driven synchronous pulley 5 and rotate, driven synchronous pulley 5 drives and rotates rather than coaxial driving gear 4, driving gear 4 drives rather than the driven gear 3 rotation of meshing, driven gear 3 drives and rotates rather than coaxial sleeve 2 of setting, can twist off the fan screw through sleeve 2.

The external diameter of driving gear 4 is less than driven gear 3's external diameter, like this, increases driven gear 3's output torque, can improve the degree of screwing up of fan screw and be convenient for unscrew the fan screw.

As shown in fig. 2, in order to further improve the stability of the fan dismounting tool during the use process. When the sleeve 2 is sleeved on a screw of the fan, one end of the mounting plate 1 is abutted to the side wall of the fan. When carrying out the dismouting of fan screw, ratchet spanner and mounting panel 1 are held respectively to staff's both hands, and back on the fan screw is being adorned 2 suits of sleeve, and the tip butt of mounting panel 1 is on the lateral wall of fan for staff's work progress is more stable, has not only improved work efficiency, avoids appearing the impaired condition of fan moreover.

As the preferred embodiment of the utility model, for increasing the commonality of fan assembly and disassembly tools. The sleeve 2 is detachably connected to the mounting shaft of the driven gear 3. The connected mode of sleeve 2 and driven gear 3's installation axle adopts the telescopic form of installation on the current ratchet spanner, and the sleeve is removable, can dismantle not unidimensional screw.

In addition, because the zonulae occludens of fan, lead to the fan screw to be blockked by preceding fan, can't be through the direct suit of 2 on the mounting panel 1 sleeves on the fan screw, the fan that the damage did not appear in the front is taken off as the needs of routine this moment, just can change following fan, at this moment, can connect the extension bar on driven gear 3's the installation axle, and then the expansion end connecting sleeve 2 of extension bar, the realization is to the direct dismantlement of the fan screw that is sheltered from, has improved work efficiency.

As shown in fig. 1-2, to facilitate the holding of the mounting plate 1 by a worker. One end of the mounting plate 1, which is far away from the sleeve 2, is connected with a grab handle 9. The grab handle 9 is convenient for workers to hold, and the grab handle 9 is used as an extension of the mounting plate 1, so that the length of the dismounting tool is increased.

Claims

1. The utility model provides an excitation regulator power cabinet fan assembly and disassembly tools which characterized in that: including mounting panel (1), rotate sleeve (2) and torque wheel (8) that set up on mounting panel (1) and set up the torque transmission subassembly between sleeve (2) and torque wheel (8), the torque transmission subassembly includes that coaxial setting sets up driven gear (3) of the epaxial driven gear of sleeve (2) and rotation set up on mounting panel (1) and with driven gear (3) meshing driving gear (4), be provided with synchronous pulley group between the installation axle of driving gear (4) and the installation axle of torque wheel (8), the external diameter of driving gear (4) is less than the external diameter of driven gear (3).

2. The excitation regulator power cabinet fan assembly and disassembly tools of claim 1, wherein: when the sleeve (2) is sleeved on a screw of the fan, one end of the mounting plate (1) is abutted to the side wall of the fan.

3. The excitation regulator power cabinet fan assembly and disassembly tools of claim 1, wherein: the sleeve (2) is detachably connected to the mounting shaft of the driven gear (3).

4. The excitation regulator power cabinet fan assembly and disassembly tools of claim 1, wherein: one end of the mounting plate (1) far away from the sleeve (2) is connected with a grab handle (9).