CN216229084U

CN216229084U - Special impeller nut extracting tool

Info

Publication number: CN216229084U
Application number: CN202122363422.3U
Authority: CN
Inventors: 张砷钇; 王利聪; 刘竞争; 张会; 胡朝辉; 张洁; 张静
Original assignee: Henan Longyu Coal Chemical Co ltd
Current assignee: Henan Longyu Coal Chemical Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-04-08
Anticipated expiration: 2031-09-28

Abstract

The utility model relates to the technical field of impeller dismounting tools, in particular to a special impeller nut dismounting tool which comprises a socket wrench, wherein a torque guide rod is arranged above the socket wrench, the middle part of the torque guide rod is rotatably provided with a knocking ring, the upper part of the torque guide rod is provided with a knocking side lug, and the knocking side lug is positioned on the outer side of the knocking ring; and inertia hammers are symmetrically arranged on two sides of the knocking ring. The impeller nut dismounting device is simple in structure, convenient to operate and low in production cost, can be used for dismounting the impeller nut, is also suitable for narrow and deep areas in a working place and areas where workers cannot conveniently knock, and avoids deformation and damage to the impeller when the nut is dismounted.

Description

Special impeller nut extracting tool

Technical Field

The utility model relates to the technical field of impeller disassembling tools, in particular to a special impeller nut disassembling tool.

Background

In the production of chemical industry enterprise, the centrifugal pump is the widest pump of application range in the daily production operation, overhauls, maintains in the transformation work daily, because the impeller of centrifugal pump uses lock nut to press to die fixedly, at the in-process of impeller dismouting, the pump shaft can rotate along with impeller lock nut's dismouting, must adopt the measure to carry out "card dead" fixed centre gripping with the impeller, just can the convenient to detach nut. However, in some types of centrifugal pumps, particularly low-temperature centrifugal pumps, impellers are made of copper alloy and have soft texture, so that the impellers cannot be clamped by strong force, otherwise, the impellers are damaged and deformed, so that the impellers have no stress points when being disassembled, and the impellers are often damaged during maintenance operation. Meanwhile, the positions of bolts in partial devices are narrow, proper tools and stress points are not provided, the disassembly process is difficult, and the efficiency is low.

Disclosure of Invention

The utility model provides a special impeller nut dismounting tool for solving the problem that a centrifugal pump impeller is not easy to dismount in the chemical industry in the prior art, and the purposes that the nut is convenient to dismount and the impeller cannot be damaged in the impeller dismounting process are achieved.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the special impeller nut dismounting tool comprises a socket wrench, wherein a torque guide rod is arranged above the socket wrench, a knocking ring is rotatably arranged in the middle of the torque guide rod, a knocking side lug is arranged at the upper part of the torque guide rod, and the knocking side lug is positioned on the outer side of the knocking ring; and inertia hammers are symmetrically arranged on two sides of the knocking ring.

Furthermore, connecting rods are symmetrically arranged on two sides of the knocking ring, one end of each connecting rod is in threaded connection with the knocking ring, and the other end of each connecting rod is in threaded connection with the inertia hammer.

Furthermore, the number of the knocking side lugs is two, the two knocking side lugs are symmetrically arranged on two sides of the torque guide rod, and the upper end and the lower end of each knocking side lug are respectively located on the upper side and the lower side of the knocking ring and welded with the torque guide rod.

Furthermore, the torque guide rod is connected with the socket wrench through a square tenon, and the socket wrench and the torque guide rod are detachable.

Further, the axes of the torque guide rod and the socket wrench are coincident, and the axis of the connecting rod is perpendicular to the axis of the socket wrench.

Through the technical scheme, the utility model has the beneficial effects that:

when the nut of the impeller is disassembled, the impeller does not need to be clamped any more, the nut is clamped by the socket spanner, the self inertia force generated when the inertia hammer rotates is utilized, the knocking side lugs on two sides of the knocking ring are knocked at the same time, and the rotating impact force is given to the knocking side lugs, so that the locking nut in the socket spanner is driven to rotate, and the nut is disassembled and assembled. The impeller locking nut is arranged on the pump shaft, the pump shaft is fixedly clamped by the impeller locking nut, and the impeller is clamped by the impeller locking nut.

The impeller nut dismounting device is simple in structure, convenient to operate and low in production cost, can be used for dismounting the impeller nut, is also suitable for narrow and deep areas of a working place, and is not convenient for people to knock the area. The socket wrench and the torque guide rod are detachable, the size, the length and the type of the socket wrench can be selected according to the size and the length of the nut to be detached, and the nuts in various sizes can be detached.

Drawings

FIG. 1 is a first schematic structural view of a special impeller nut removal tool of the present invention;

FIG. 2 is a second structural view of the special impeller nut removal tool of the present invention;

fig. 3 is a third structural schematic diagram of the special impeller nut dismounting tool of the utility model.

The reference numbers in the drawings are as follows: the wrench comprises a socket wrench 1, a torque guide rod 2, an inertia hammer 3, a connecting rod 4, a knocking ring 5 and a knocking side lug 6.

Detailed Description

The utility model is further described with reference to the following figures and detailed description:

embodiment 1, as shown in fig. 1 to 3, the special impeller nut dismounting tool includes a socket wrench, a torque guide rod 2 is arranged above the socket wrench 1, a knocking ring 5 is rotatably arranged in the middle of the torque guide rod 2, a knocking side lug 6 is arranged on the upper portion of the torque guide rod, and the knocking side lug 6 is located on the outer side of the knocking ring 5; the two sides of the knocking ring 5 are symmetrically provided with inertia hammers 3.

The connecting rods 4 are symmetrically arranged on two sides of the knocking ring 5, one end of each connecting rod 4 is in threaded connection with the knocking ring 5, and the other end of each connecting rod is in threaded connection with the inertia hammer 3.

The number of the knocking side lugs 6 is two, the two knocking side lugs 6 are symmetrically arranged on two sides of the torque guide rod 2, and the upper end and the lower end of each knocking side lug 6 are respectively located on the upper side and the lower side of the knocking ring 5 and are welded with the torque guide rod 2. Specifically, the knocking ring 5 is directly sleeved on the torque guide rod 2, and the knocking side lug 6 limits the knocking ring 5 from top to bottom, so that the knocking ring 5 cannot fall below the torque guide rod 2 and cannot fall off from the top of the torque guide rod 2 when directly rotating on the torque guide rod 3.

Torque guide arm 2 and box spanner 1 are square tenon connection, can fasten the nut when dismantling the nut, avoid box spanner 1 and nut to produce and slide, can dismantle between box spanner 1 and the torque guide arm 2, can change different kind of box spanner 1, realize the dismantlement of different kind of nuts.

The axis of the torque guide rod 2 is coincident with that of the socket wrench 1, and the axis of the connecting rod 4 is perpendicular to that of the socket wrench 1.

During the use, utilize box spanner 1 to carry out the centre gripping to the screw, utilize the rotatory impact force that produces of 4 both sides inertia hammers 3 of connecting rod simultaneously, realize connecting rod 4 and strike 5 both sides of ring knocking side ear 6, give and strike side ear 6 rotatory impact force to make the lock nut in box spanner 1 rotate, realize the self-disassembly of nut, avoided causing deformation damage to the impeller at the in-process of nut dismouting.

Embodiment 2, the same parts as those in embodiment 1 are not repeated, except that the socket wrenches 1 with different sizes, dimensions and lengths are replaced to realize the disassembly of nuts with different lengths and types.

Embodiment 3, the same part with

embodiment

1, 2 is not repeated, the difference is the operating environment of narrow and small and deep in the operation region, and the working area is little, and personnel can't carry out full power operation, can't realize the effort of plus, uses this from the special nut extracting tool who takes inertia, can carry out from gravity dismantlement, and is light convenient.

The above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, so that equivalent changes or modifications in the structure, features and principles described in the present invention should be included in the claims of the present invention.

Claims

1. The special impeller nut dismounting tool comprises a socket wrench (1) and is characterized in that a torque guide rod (2) is arranged above the socket wrench (1), a knocking ring (5) is rotatably arranged in the middle of the torque guide rod (2), a knocking side lug (6) is arranged at the upper part of the torque guide rod, and the knocking side lug (6) is positioned on the outer side of the knocking ring (5); the two sides of the knocking ring (5) are symmetrically provided with inertia hammers (3).

2. The special impeller nut dismounting tool according to claim 1, characterized in that connecting rods (4) are symmetrically arranged on two sides of the knocking ring (5), one end of each connecting rod (4) is in threaded connection with the knocking ring (5), and the other end of each connecting rod is in threaded connection with the inertia hammer (3).

3. The special impeller nut dismounting tool is characterized in that the number of the knocking side lugs (6) is two, the two knocking side lugs (6) are symmetrically arranged on two sides of the torque guide rod (2), and the upper end and the lower end of each knocking side lug (6) are respectively located on the upper side and the lower side of the knocking ring (5) and are welded with the torque guide rod (2).

4. The special impeller nut removal tool according to claim 1, characterized in that the torque guide rod (2) and the socket wrench (1) are in square tenon connection, and the socket wrench (1) and the torque guide rod (2) are detachable.

5. The special impeller nut removal tool according to claim 1, characterized in that the axes of the torque guide rod (2) and the socket wrench (1) coincide, and the axis of the connecting rod (4) is perpendicular to the axis of the socket wrench (1).