CN213319913U

CN213319913U - Direct-connected fan impeller extracting tool

Info

Publication number: CN213319913U
Application number: CN202021762459.2U
Authority: CN
Inventors: 梁殿虎; 王若群; 石雅峰; 赵杰伟; 高向民; 彭红涛; 李东风; 李燕; 王晓珊; 杨望林; 丁鼎
Original assignee: Pingdingshan Shenma Engineering Plastics Co ltd
Current assignee: Pingdingshan Shenma Engineering Plastics Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-06-01
Anticipated expiration: 2030-08-21

Abstract

A direct-connected fan impeller detaching tool is characterized in that a motor shaft is connected with a fan impeller through a fan impeller hub, a central hole is formed in the motor shaft, a first threaded hole is formed in the fan impeller hub, the detaching tool comprises a bearing disc, a screw rod matched with the first threaded hole, a jackscrew matched with the central hole and a nut, a second threaded hole is formed in the center of the bearing disc, long holes are symmetrically formed in the periphery of the second threaded hole, the jackscrew sequentially penetrates through the second threaded hole in the bearing disc and the central hole in the motor shaft and is screwed into the central hole to jack the motor shaft, the screw rod sequentially penetrates through the long hole in the bearing disc and the first threaded hole in the fan impeller hub and is screwed into the first threaded hole, and the nut is sleeved on the screw rod; the utility model discloses structural design is simple, the atress is even, the reliable and stable nature is good, dismantles the not fragile impeller of process.

Description

Direct-connected fan impeller extracting tool

Technical Field

The utility model relates to an impeller dismounting device, specific direct-connected fan impeller extracting tool that says so.

Background

The direct-connected fan impeller disassembly and maintenance is a conventional maintenance operation activity, and the prior direct-connected fan impeller disassembly process has the following methods because no special impeller disassembly tool is available and is limited by the diameter of the air inlet hole of the impeller body: firstly, the impeller is pulled out from the long shaft of the motor by using a three-jaw mechanical pull code matched with the diameter of the caliber of the air inlet hole, the three-jaw mechanical pull code can also be used for disassembling the impeller of the motor direct-connected fan with low speed and low matching precision of the long shaft of the motor and the impeller, and the three-jaw mechanical pull code cannot be used for disassembling the impeller of the motor direct-connected fan with high speed and high matching precision of the motor shaft and the impeller, and in addition, the three-jaw mechanical pull code is in point contact with the impeller hub disassembling clamping groove, so that the impeller; secondly, a crow bar is needed to fix the impeller of the fan, so that the impeller of the fan is fixed and does not rotate, then the jackscrew is screwed, so that the impeller is separated from the motor shaft, and if the method is applied improperly, the impeller is deformed. Therefore, a disassembling tool which is convenient to disassemble and is not easy to damage the impeller is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem not enough, the utility model provides a direct-connected fan impeller extracting tool, structural design is simple, the atress is even, the reliable and stable nature is good, dismantles the not fragile impeller of process.

The utility model discloses a solve above-mentioned technical problem not enough and the technical scheme who adopts is: the utility model provides a direct-connected fan impeller extracting tool, the motor shaft passes through wind impeller wheel hub and is connected with fan impeller, be equipped with the centre bore on the motor shaft, be equipped with first screw hole on the wind impeller wheel hub, extracting tool include the bearing plate, with first screw hole assorted screw rod, with centre bore assorted jackscrew and nut, the center of bearing plate is equipped with the second screw hole, the symmetry is equipped with the elongated hole all around of second screw hole, the jackscrew passes in proper order second screw hole on the bearing plate, the centre bore on the motor shaft to twist the centre bore withstands the motor shaft, the screw rod pass in proper order the bearing plate on the elongated hole the wind impeller wheel hub on the first screw hole, and twist first screw hole, the nut cover is established on the screw rod.

Furthermore, three pairs of elongated holes are formed in the pressure bearing disc.

Furthermore, the number of the screw rods is 2, and the screw rods are symmetrically inserted into the elongated holes.

Furthermore, the number of the nuts is 2, and the fan impeller is separated from the motor shaft by alternately screwing the nuts.

The utility model has the advantages that:

the utility model discloses a disassembling tool includes bearing plate, screw rod, jackscrew and nut, wherein, the screw rod is assorted with the original first screw hole on the impeller hub of the fan, jackscrew is assorted with the original centre bore on the motor shaft, first screw rod and jackscrew that pass bearing plate are fixedly connected with impeller hub of the fan and motor shaft respectively, and then twist the nut on the screw rod, make the impeller of the fan under the natural state, through screwing up the nut alternately and achieving the purpose that makes impeller of the fan separate from motor shaft; owing to be equipped with the bearing plate, exert oneself the nut and become a atress by some atress, slowly twist the nut, confirm the distance of bearing plate and motor shaft through the extension length of adjustment jackscrew, can pull out directly connecting fan wheel steadily from the atress direction, can not cause impeller wheel hub to dismantle draw-in groove deformation or fracture, have the advantage that the atress is even simultaneously, simple structure, convenient operation, equipment are nimble, applicable in the dismantlement of the direct-connected fan wheel of various rotational speeds.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a direct-coupled blower impeller removing tool;

fig. 2 is a schematic structural view of a pressure bearing disc;

reference numerals: 1. motor shaft, 101, centre bore, 2, fan wheel hub, 201, first screw hole, 3, fan wheel, 4, bearing plate, 401, second screw hole, 402, elongated hole, 5, screw rod, 6, jackscrew, 7, nut.

Detailed Description

The following provides specific embodiments, which will further clearly, completely and specifically explain the technical solutions of the present invention. The present embodiment is the best embodiment based on the technical solution of the present invention, but the scope of the present invention is not limited to the following embodiments.

A direct-connected fan impeller detaching tool is disclosed, as shown in fig. 1 and fig. 2, a motor shaft 1 is connected with a fan impeller 3 through a fan impeller hub 2, a central hole 101 is arranged on the motor shaft 1, the central hole 101 is original on the motor shaft 1, extra punching is not needed, a first threaded hole 201 is arranged on the

fan impeller hub

2, and 6 first threaded holes 201 are original on the fan impeller hub 2;

the dismounting tool comprises a bearing disc 4, a screw rod 5 matched with the first threaded hole 201, a jackscrew 6 matched with the center hole 101 and a nut 7, wherein a second threaded hole 401 is formed in the center of the bearing disc 4, elongated holes 402 are symmetrically formed in the periphery of the second threaded hole 401, the jackscrew 6 sequentially penetrates through the second threaded hole 401 in the bearing disc 4 and the center hole 101 in the motor shaft 1 and is screwed into the center hole 101 to jack the motor shaft 1, the screw rod 5 sequentially penetrates through the elongated hole 402 in the bearing disc 4 and the first threaded hole 201 in the wind impeller hub 2 and is screwed into the first threaded hole 201, and the nut 7 is sleeved on the screw rod 5.

Further, as shown in fig. 2, three pairs of elongated holes 402 are formed in the

pressure bearing plate

4, 2 screws 5 are symmetrically inserted into the

elongated holes

402, 2 nuts 7 are matched with the screws 5, the 2 screws 5 and the jackscrews 6 penetrating through the pressure bearing plate 4 are fixedly connected with the fan impeller hub 2 and the motor shaft 1, respectively, and the nuts 7 are screwed into the 2 screws 5, so that the fan impeller 3 is in a natural state, and the fan impeller 3 is separated from the motor shaft 1 by alternately screwing the nuts 7.

Furthermore, the nut 7 is provided with an auxiliary tool, the auxiliary tool comprises a circular ring matched with the periphery of the nut 7 and auxiliary tightening shafts radially arranged on the outer side of the circular ring, the auxiliary tightening shafts are rectangular shafts, the auxiliary tightening shafts are used for clamping or not clamping the distance between the nut 7 and the jackscrew 6 when the distance between the nut 7 and the jackscrew 6 is small and a wrench for screwing the nut 7 is not clamped, the auxiliary tool is sleeved on the nut 7, the adjacent two tightening shafts are clamped by the wrench to exert force, and the nut 7 can be easily tightened or disassembled.

The utility model discloses a disassembling tool is owing to be equipped with bearing dish 4, send out the power with nut 7 and become a atress by some atress, slowly twist and move nut 7, confirm bearing dish 4 and motor shaft 1's distance through the extension length of adjustment jackscrew 6, can steadily pull out direct-connected fan impeller from the atress direction, can not cause impeller wheel hub 2 to dismantle draw-in groove deformation or fracture, it is even to have the atress simultaneously, moreover, the steam generator is simple in structure, and convenient for operation, the advantage of equipment flexibility, applicable in the dismantlement of direct-connected fan impeller of various rotational speeds.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A direct-connected fan impeller detaching tool is characterized in that a motor shaft (1) is connected with a fan impeller (3) through a fan impeller hub (2), a center hole (101) is formed in the motor shaft (1), a first threaded hole (201) is formed in the fan impeller hub (2), the detaching tool comprises a bearing plate (4), a screw rod (5) matched with the first threaded hole (201), a jackscrew (6) matched with the center hole (101) and a nut (7), a second threaded hole (401) is formed in the center of the bearing plate (4), elongated holes (402) are symmetrically formed in the periphery of the second threaded hole (401), the jackscrew (6) sequentially penetrates through the second threaded hole (401) in the bearing plate (4) and the center hole (101) in the motor shaft (1) and is screwed into the center hole (101) to jack the motor shaft (1), the screw (5) sequentially penetrates through a long hole (402) in the bearing disc (4) and a first threaded hole (201) in the wind impeller hub (2) and is screwed into the first threaded hole (201), and the screw (5) is sleeved with the nut (7).

2. A direct connection fan impeller dismounting tool according to claim 1, characterized in that there are three pairs of elongated holes (402) on the pressure bearing disc (4).

3. A direct connection blower wheel dismounting tool according to claim 2, characterized in that there are 2 screws (5) symmetrically inserted into the elongated hole (402).

4. A direct connection blower wheel dismounting tool according to claim 3, characterized in that there are 2 said nuts (7) matching said screw (5), said blower wheel (3) being separated from said motor shaft (1) by alternately tightening said nuts (7).