CN220362220U - Impeller device is pulled out to hole - Google Patents

Abstract

The utility model discloses an inner hole impeller pulling device which comprises a screw rod, wherein the surface of the screw rod is in threaded connection with a round screw nut, grooves are formed in two sides of the round screw nut, the number of the grooves is two, and the two grooves are symmetrically formed in two sides of the round screw nut at equal intervals. The inner hole impeller grabbing device has the advantages of improving the maintenance efficiency, reducing the maintenance cost and the labor intensity and improving the maintenance safety by arranging the screw rod, the round screw nut, the groove, the fixing plate, the sliding chute, the sliding block and the round limiting sleeve to be matched with each other, can reduce the labor intensity and improve the maintenance efficiency when the rotating mechanical impeller is disassembled in the practical application of the grabbing device, effectively avoids the accidental damage of the impeller, has the advantages of simple structure, light weight, easy operation, low manufacturing cost and low later maintenance cost, and can be suitable for the disassembly of various inner hole impellers, and has good applicability.

Description

Impeller device is pulled out to hole

Technical Field

The utility model relates to the technical field of impellers, in particular to an inner hole impeller pulling device.

Background

The impeller not only refers to a wheel disc provided with movable vanes, but also refers to the general name of the wheel disc and the movable vanes arranged on the wheel disc, and the impeller can be classified according to the shape and the opening and closing conditions.

Many rotating machinery overhauls all need to decompose equipment, when each time overhauls, all need take off the impeller, change or other overhauls the spare part of rotating equipment, but the main method of current dismantlement impeller is firstly with the impeller with the gas welding heating, use the crow bar to pry out the impeller after heating, when the impeller is too tight, the condition that the impeller can not be taken off will appear, after this kind of condition appears, just need take out the impeller with the gas welding disconnection of axle after, not only overhaul time is long, intensity of labour is big, and maintenance cost is high, there is the potential safety hazard when overhauling, therefore we provide an hole and pull out impeller device in order to solve above-mentioned problem.

Disclosure of Invention

The utility model aims to provide an inner hole impeller pulling device which has the advantages of improving the maintenance efficiency, reducing the maintenance cost and labor intensity and improving the maintenance safety, and solves the problems that the existing main method for disassembling an impeller is to heat the impeller by using an air welding, prying the impeller out by using a pry bar after heating, and when the impeller is too tight, the impeller cannot be taken off, and after the condition, the impeller needs to be taken out after the shaft is disconnected by using the air welding, so that the maintenance time is long, the labor intensity is high, and the maintenance cost is high and potential safety hazards exist during the maintenance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an impeller device is pulled out to hole, includes the lead screw, the surface threaded connection of lead screw has circular screw, the recess has all been seted up to the both sides of circular screw, the positive top of circular screw and the equal fixedly connected with fixed plate in bottom, the spout has been seted up in the outside of fixed plate, the inner chamber sliding connection of spout has the slider, the outside fixedly connected with circular stop collar of slider, the diameter of circular stop collar inner chamber is greater than the diameter of circular screw.

As a preferable scheme, the number of the grooves is two, and the two grooves are symmetrically arranged at the two sides of the round nut at equal intervals.

Preferably, the depth of the groove is 5mm, and the width of the groove is 15mm.

As a preferable scheme, the inner cavity of the round screw is provided with a thread groove, the surface of the screw rod is provided with threads, and the threads are in threaded connection with the thread groove.

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

1. according to the utility model, the screw rod, the round screw nut, the groove, the fixed plate, the sliding groove, the sliding block and the round limiting sleeve are mutually matched, so that the advantages of improving the maintenance efficiency, reducing the maintenance cost and the labor intensity and improving the maintenance safety are achieved, when the rotating mechanical impeller is disassembled through the practical application of the gripping apparatus, the labor intensity is reduced, the maintenance efficiency is improved, and the accidental damage of the impeller is effectively avoided.

2. The inner hole impeller grabbing device has the advantages of simple structure, light weight, easy operation, low manufacturing cost and low later maintenance cost, and can be suitable for the disassembly of various inner hole impellers and has good applicability.

3. Through setting up the recess, can make the arm-tie fix in the recess, can not the slippage, through setting up lead screw and circular nut to this is controlled the atress point of drawing the horse, guarantees that the atress point of gripping apparatus on the during operation impeller can even atress.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a right side view of the present utility model;

fig. 3 is a schematic diagram of the front view structure of the present utility model.

In the figure: 1. a screw rod; 2. a round nut; 3. a groove; 4. a fixing plate; 5. a chute; 6. a slide block; 7. a round limit sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an inner hole impeller pulling device comprises a screw rod 1, wherein a round screw 2 is connected to the surface of the screw rod 1 in a threaded manner, grooves 3 are formed in two sides of the round screw 2, a fixing plate 4 is fixedly connected to the top and the bottom of the front face of the round screw 2, a sliding groove 5 is formed in the outer side of the fixing plate 4, a sliding block 6 is slidingly connected to an inner cavity of the sliding groove 5, a round limit sleeve 7 is fixedly connected to the outer side of the sliding block 6, the diameter of the inner cavity of the round limit sleeve 7 is larger than that of the round screw 2, and the screw rod 1, the round screw 2, the grooves 3, the fixing plate 4, the sliding groove 5, the sliding block 6 and the round limit sleeve 7 are mutually matched.

The number of the grooves 3 is two, the two grooves 3 are symmetrically arranged at equal intervals on two sides of the round nut 2, the depth of each groove 3 is 5mm, and the width of each groove 3 is 15mm.

Through above-mentioned technical scheme, through setting up recess 3, can make the arm-tie fix in recess 3, can not the slippage.

The inner cavity of the round screw 2 is provided with a thread groove, the surface of the screw rod 1 is provided with threads, and the threads are in threaded connection with the thread groove.

Through above-mentioned technical scheme, through setting up lead screw 1 and circular nut 2 to this atress point that comes control to draw the horse guarantees that the gripper can even atress at the atress point on the during operation impeller.

The working principle of the utility model is as follows: after the puller is installed, the puller is oppositely pulled Ma Jiali, the puller is fixed, the distance between the two puller arms is measured, the screw rod 1 and the round screw nut 2 are processed, the groove 3 with the width equal to that of the puller arms is processed on the round screw nut 2, the puller arms are fixed in the groove 3, then the round limiting sleeve 7 is pulled, the round limiting sleeve 7 moves to drive the sliding block 6 to slide in the inner cavity of the sliding groove 5, the round limiting sleeve 7 moves to be sleeved on the surfaces of the round screw nut 2 and the puller arms, the puller arms cannot slip, the round screw nut 2 can move up and down, so that the stress point of the puller can be controlled, the stress point of the gripper on the impeller can be uniformly stressed during operation, the manufactured tool is additionally installed on the puller, the puller arms are fixedly pulled Ma Jiali, and the impeller is pulled out, thereby the advantages of improving maintenance efficiency, reducing maintenance cost and labor intensity and improving maintenance safety are achieved.

In conclusion, the inner hole impeller grabbing device is convenient to operate, time-saving and labor-saving, does not damage the impeller when the impeller is disassembled, improves the working efficiency, eliminates the hidden danger of accidental damage in the impeller disassembling process, is simple in structure and manufacturing, low in manufacturing cost and good in applicability, and is worthy of popularization and application.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. An inner hole impeller pulling device comprises a screw rod (1), and is characterized in that: the surface threaded connection of lead screw (1) has circular screw (2), recess (3) are all seted up to the both sides of circular screw (2), positive top and the equal fixedly connected with fixed plate (4) of bottom of circular screw (2), spout (5) have been seted up in the outside of fixed plate (4), the inner chamber sliding connection of spout (5) has slider (6), the outside fixedly connected with circular stop collar (7) of slider (6), the diameter of circular stop collar (7) inner chamber is greater than the diameter of circular screw (2).

2. An inner bore impeller pulling apparatus according to claim 1, wherein: the number of the grooves (3) is two, and the two grooves (3) are symmetrically arranged at equal intervals on two sides of the round nut (2).

3. An inner bore impeller pulling apparatus according to claim 1, wherein: the depth of the groove (3) is 5mm, and the width of the groove (3) is 15mm.

4. An inner bore impeller pulling apparatus according to claim 1, wherein: the inner cavity of the round screw nut (2) is provided with a thread groove, the surface of the screw rod (1) is provided with threads, and the threads are connected with the thread groove in a threaded manner.