CN218947548U

CN218947548U - Portable axial flow fan impeller extracting tool

Info

Publication number: CN218947548U
Application number: CN202223243137.9U
Authority: CN
Inventors: 张罡; 江军; 栾会东; 高述彦; 董博锋; 姜德祥; 王东良; 尹洋; 罗军; 蒋文斌; 王喜兵; 冯剑鸿
Original assignee: Xinjiang Zhongtai Chemical Co Ltd; Xinjiang Zhongtai Mining and Metallurgy Co Ltd
Current assignee: Xinjiang Zhongtai Chemical Co Ltd; Xinjiang Zhongtai Mining and Metallurgy Co Ltd
Priority date: 2022-12-04
Filing date: 2022-12-04
Publication date: 2023-05-02
Anticipated expiration: 2032-12-04

Abstract

The utility model relates to the technical field of axial flow fan impeller disassembling tools, in particular to a portable axial flow fan impeller disassembling tool which comprises a connecting plate, connecting bolts and a tightening screw, wherein the connecting plate is horizontally arranged right in front of a shaft sleeve, a mounting through hole is formed in the connecting plate corresponding to each threaded hole, each mounting through hole is internally provided with one connecting bolt in a penetrating manner, the screw part of each connecting bolt is in threaded connection with one threaded hole corresponding to the connecting bolt, threaded mounting holes are formed in the connecting plate corresponding to the middle channel position of the shaft sleeve in a penetrating manner in the front-back manner, the threaded mounting holes and the shaft sleeve are coaxially arranged, the aperture of each threaded mounting hole is smaller than the inner diameter of the shaft sleeve, and the tightening screw is in threaded connection with the inside of each threaded mounting hole. The utility model has reasonable structure, simple, convenient and easy implementation of the whole disassembly operation, low operation risk and high operation efficiency, and can be completed by only one person.

Description

Portable axial flow fan impeller extracting tool

Technical Field

The utility model relates to the technical field of axial flow fan impeller disassembling tools, in particular to a convenient axial flow fan impeller disassembling tool.

Background

The axial fan impeller is often required to be detached from the impeller shaft during maintenance, and the currently adopted detaching methods are two: 1. heating the impeller to generate a gap between the shaft sleeve of the impeller and the impeller shaft so as to disassemble the impeller; 2. the axial flow fan impeller is pulled down from the impeller shaft by the puller, so that the first method is used for not only requiring multiple persons to cooperate with operation, but also easily causing risks such as scalding in the operation process, and the second method is used for causing poor installation and operation of the puller due to limited space of the volute in the fan, so that the whole disassembly operation takes a long time.

Disclosure of Invention

The utility model provides a convenient axial flow fan impeller disassembling tool, which overcomes the defects of the prior art and can effectively solve the problems of low operation efficiency and high operation risk in the disassembly of the existing axial flow fan impeller.

The technical scheme of the utility model is realized by the following measures: a portable axial fan impeller extracting tool for dismantle axial fan impeller, this axial fan impeller includes the front disc, the back dish, blade and axle sleeve, parallel arrangement around front disc and the back dish, be equipped with the blade along circumference equipartition between front disc and the back dish, back dish middle part fixed mounting has the axle sleeve, be equipped with the keyway on the axle sleeve inner wall, the terminal surface left and right sides is equipped with a screw hole respectively before the axle sleeve, this portable axial fan impeller extracting tool includes the connecting plate, connecting bolt and tight screw rod in the top, the connecting plate is the level setting in the axle sleeve directly ahead, all be equipped with an installation through-hole on the connecting plate that corresponds every screw hole position, all wear to be equipped with a connecting bolt in every installation through-hole, the equal threaded connection of screw rod portion of every connecting bolt is in a threaded hole that corresponds with it, run through on the connecting plate that corresponds the middle part passageway position of axle sleeve is provided with the screw mounting hole around, the aperture of screw mounting hole and axle sleeve coaxial setting and screw mounting hole is less than the axle sleeve internal diameter, screw thread connection has tight screw rod in the screw mounting hole.

The following are further optimizations and/or improvements to the above described inventive arrangements:

the front end of the jacking screw rod can be fixedly connected with a clamping column with a square cross section, a sleeve is sleeved outside the clamping column in a rotation stopping manner, and a wrench is fixedly connected to the outer side wall of the sleeve.

The front end face of the clamping column can be provided with a wire hole, the wire hole is internally connected with a connecting column in a threaded manner, the front end of the connecting column is fixedly connected with a baffle plate, and the baffle plate can abut against the sleeve when the sleeve moves forwards relative to the clamping column.

A plurality of hemispherical ball mounting holes can be uniformly distributed in the rear end face of the jacking screw in the circumferential direction, balls are mounted in the ball mounting holes, the diameter of each ball is slightly smaller than that of each ball mounting hole, a limiting ring body is coaxially and fixedly mounted on the rear end face of the jacking screw through screws, through holes which penetrate through left and right are formed in the limiting ring body corresponding to the positions of each ball mounting hole, the diameter of each through hole is smaller than that of each ball, and the rear portion of each ball protrudes to the rear side of the corresponding limiting ring body through the corresponding through hole.

The utility model has reasonable structure, can be quickly installed with the axial flow fan impeller during disassembly, can separate the axial flow fan impeller from the impeller shaft by only rotating the jacking screw, has simple, convenient and easy implementation, can be completed by only one person, has low operation risk and high operation efficiency, and is convenient to carry.

Drawings

Fig. 1 is a schematic view of a left-hand partially cut-away structure of a first embodiment of the present utility model.

Fig. 2 is a schematic front view of an embodiment of the present utility model when mounted on an impeller of an axial flow fan.

Fig. 3 is a schematic diagram of a front view of an axial flow fan impeller.

Fig. 4 is a schematic view of a left-hand partially cut-away structure of a second embodiment of the present utility model.

The codes in the drawings are respectively: 1 is a connecting plate, 2 is a connecting bolt, 3 is a tightening screw, 4 is a clamping column, 5 is a sleeve, 6 is a wrench, 7 is a ball, 8 is a limiting ring, 9 is a baffle, 10 is a front disc, 11 is a rear disc, 12 is a blade, 13 is a shaft sleeve, 14 is a threaded hole, and 15 is an impeller shaft.

Detailed Description

The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.

In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The utility model is further described below with reference to examples and figures:

embodiment one: as shown in fig. 1-3, this portable axial fan impeller extracting tool is used for dismantling axial fan impeller, this axial fan impeller includes front disc 10, back disc 11, blade 12 and axle sleeve 13, parallel arrangement around front disc 10 and back disc 11, be equipped with blade 12 along circumference equipartition between front disc 10 and the back disc 11, back disc 11 middle part fixed mounting has axle sleeve 13, be equipped with the keyway on the axle sleeve 13 inner wall, the terminal surface left and right sides is equipped with a screw hole 14 respectively before the axle sleeve 13, this portable axial fan impeller extracting tool includes connecting plate 1, connecting bolt 2 and jack screw 3, connecting plate 1 is the level setting in axle sleeve 13 in the place ahead, all be equipped with a mounting hole on the connecting plate 1 of every screw hole 14 position, all wear to be equipped with a connecting bolt 2 in every mounting hole, the screw rod portion of every connecting bolt 2 all threaded connection is in a screw hole 14 that corresponds with it, run through in front and back on the connecting plate 1 of the middle part passageway position of corresponding axle sleeve 13, the aperture that screw mounting hole and axle sleeve 13 set up and the screw hole diameter are less than axle sleeve 13 internal diameter, threaded mounting hole internal thread 3 is tightly connected.

When the axial flow fan impeller is required to be detached from the impeller shaft 15, the tightening screw 3 is only required to be rotated to enable the tightening screw 3 to move backwards, the rear end of the tightening screw 3 is propped against the front end of the impeller shaft 15, and as the connecting plate 1 is fixedly connected with the shaft sleeve 13 through the connecting bolt 2, the axial flow fan impeller can move forwards relative to the impeller shaft 15 along with continuous rotation of the tightening screw 3 until the impeller is finally separated from the impeller shaft 15, the whole detachment operation is simple, convenient and easy to implement, the operation risk is low, and the operation efficiency is high.

The first embodiment can be further optimized and/or improved according to practical needs:

as shown in fig. 1-2, the front end of the tightening screw 3 is fixedly connected with a clamping post 4 with a square cross section, the outer side of the clamping post 4 is in anti-rotation sleeved with a sleeve 5, and the outer side wall of the sleeve 5 is fixedly connected with a wrench 6. The screw 3 is rotated to be tightly propped by pulling the wrench 6, so that the moment is prolonged, and the disassembly operation is more labor-saving.

As shown in fig. 1, a plurality of hemispherical ball 7 mounting holes are uniformly distributed on the rear end face of the tightening screw 3 along the circumferential direction, balls 7 are mounted in the ball 7 mounting holes, the diameter of each ball 7 is slightly smaller than that of each ball 7 mounting hole, a limit ring body 8 is coaxially and fixedly mounted on the rear end face of the tightening screw 3 through screws, through holes which are communicated left and right are formed in the limit ring body 8 corresponding to the positions of each ball 7 mounting hole, the diameter of each through hole is smaller than that of each ball 7, and the rear portion of each ball 7 protrudes to the rear side of the corresponding limit ring body 8 through the through hole. The back end of the jacking screw 3 and the front end of the impeller shaft 15 are propped together, the friction between the two increases the rotation difficulty of the jacking screw 3, and in the embodiment, the point contact is formed between the front end surfaces of the impeller shafts 15 by arranging the balls 7, so that the friction force between the two is greatly reduced, the rotation of the jacking screw 3 is facilitated, and the disassembly operation is more labor-saving.

Embodiment two: as shown in fig. 4, the difference between the present embodiment and the embodiment is only that: the front end face of the clamping column 4 is provided with a screw hole, the screw hole is internally connected with a connecting column in a threaded manner, the front end of the connecting column is fixedly connected with a baffle plate 9, and the baffle plate 9 can be propped against the sleeve 5 when the sleeve 5 moves forwards relative to the clamping column 4. This prevents the operator from being injured by the falling-off of the wrench 6 during the pulling of the wrench 6.

The technical characteristics form the optimal embodiment of the utility model, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.

Claims

1. The utility model provides a portable axial fan impeller extracting tool for dismantle axial fan impeller, this axial fan impeller includes the front disc, the back dish, blade and axle sleeve, parallel arrangement around front disc and the back dish, be equipped with the blade along circumference equipartition between front disc and the back dish, back dish middle part fixed mounting has the axle sleeve, be equipped with the keyway on the axle sleeve inner wall, the terminal surface left and right sides is equipped with a screw hole respectively before the axle sleeve, its characterized in that this portable axial fan impeller extracting tool includes the connecting plate, connecting bolt and top tight screw rod, the connecting plate is the level and sets up in the axle sleeve directly ahead, all be equipped with an installation through-hole on the connecting plate that corresponds every screw hole position, all wear to be equipped with a connecting bolt in every installation through-hole, the equal threaded connection of screw rod portion of every connecting bolt is in a threaded hole that corresponds with it, run through around on the connecting plate that corresponds the middle part passageway position of axle sleeve is provided with the screw mounting hole, screw mounting hole and axle sleeve coaxial setting and the aperture of screw mounting hole are less than the axle sleeve internal diameter, screw threaded mounting hole internal thread connection has top tight screw rod.

2. The portable axial flow fan impeller dismounting tool of claim 1, wherein the front end of the tightening screw is fixedly connected with a clamping column with a square cross section, a sleeve is sleeved outside the clamping column in a rotation stopping manner, and a wrench is fixedly connected to the outer side wall of the sleeve.

3. The portable axial flow fan impeller disassembling tool according to claim 2, wherein the front end face of the clamping post is provided with a threaded hole, the threaded hole is internally connected with a connecting post, the front end of the connecting post is fixedly connected with a baffle plate, and the baffle plate can be propped against the sleeve when the sleeve moves forwards relative to the clamping post.

4. The portable axial flow fan impeller extracting tool according to claim 1 or 2 or 3, wherein a plurality of hemispherical ball mounting holes are uniformly distributed on the rear end surface of the tightening screw along the circumferential direction, balls are mounted in the ball mounting holes, the diameter of each ball is slightly smaller than that of each ball mounting hole, a limit ring body is coaxially and fixedly mounted on the rear end surface of the tightening screw through a screw, through holes which are penetrated left and right are formed in the limit ring body corresponding to the positions of each ball mounting hole, the diameter of each through hole is smaller than that of each ball, and the rear parts of the balls are protruded to the rear side of the limit ring body through the through holes.