CN112483424A - Single-stage centrifugal pump convenient to change impeller - Google Patents

The invention discloses a single-stage centrifugal pump convenient for impeller replacement, which comprises a shell, wherein a sleeve is inserted on the right side of the inner wall of the shell, a fixing mechanism comprises a threaded rod, a circular plate, a round ball, a sleeve plate, a vertical plate, an inclined plate, a circular plate and a vertical rod, and the left end and the right end of the outer wall of the threaded rod are respectively connected with the left side and the right side of the inner wall of a groove in a rotating manner. The vertical rod is controlled to be fixed to the shell and the sleeve through the fixing mechanism, the bolt fixing trouble is omitted, the impeller is convenient to replace, the working difficulty is reduced, the working efficiency is improved, the bolt fixing form is changed through the fixing mechanism, tripping is prevented, installation is guaranteed, normal use is guaranteed, the service life is prolonged, maintenance of a motor is convenient, long-time operation of the motor is guaranteed, the industrial board is supported through a spring of the protection mechanism, friction is eliminated below the shell, vibration is slowed down through the spring, damage is prevented, maintenance cost is saved, practicability is improved, and popularization is facilitated.

Single-stage centrifugal pump convenient to change impeller

Technical Field

The invention relates to the technical field of single-stage centrifugal pumps with impellers convenient to replace, in particular to a single-stage centrifugal pump with impellers convenient to replace.

Background

The single-stage centrifugal pump comprises a pump body, a pump cover and a motor with an output shaft, wherein a pump shaft, a bearing seat, an impeller, a mechanical seal and a mechanical seal gland are arranged in the pump body and are connected with the motor through a lengthened elastic coupling, and the rotation direction of the pump is clockwise when viewed from a driving end.

The existing single-stage centrifugal pump is not convenient to detach due to the fact that a plurality of bolts are fixed, the impeller is troublesome to replace, the work difficulty is increased, the work efficiency is reduced, the bolts are easily loosened in a fixed mode, the installation cannot be achieved, normal use is affected, the service life is shortened, the motor output is incapable of being detached in a wrapping mode, normal maintenance is affected, normal operation is affected due to long-time use, vibration can be generated during the use simultaneously, bottom connection friction is large, the damage is easy, the maintenance cost is increased, the practicability is reduced, and the use requirement of modern people is not met.

Disclosure of Invention

The invention aims to provide a single-stage centrifugal pump with an impeller convenient to replace, and aims to solve the problems that the existing single-stage centrifugal pump in the background art is inconvenient to disassemble due to the fact that a plurality of bolts are used for fixing, the impeller is troublesome to replace, the working difficulty is increased, and the working efficiency is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a single-stage centrifugal pump convenient for impeller replacement comprises a shell, wherein a sleeve is inserted and connected to the right side of the inner wall of the shell, grooves are formed in the upper side and the lower side of a sleeve plate, and fixing mechanisms are arranged in the two grooves;

the fixing mechanism comprises a threaded rod, a circular plate, a ball, a sleeve plate, a vertical plate, an inclined plate, a circular plate and a vertical rod;

both ends are rotated with the inner wall left and right sides of recess respectively and are linked to each other about the outer wall of threaded rod, the outer wall right side of threaded rod and the inner wall looks rigid coupling of plectane, the outer wall equidistance processing of plectane has the ball, the outer wall left side of threaded rod and the inner wall threaded connection of lagging, the outer wall of lagging and the inner wall slip joint of recess, the top of lagging and the bottom rigid coupling of riser, the rear end face top of riser rotates with the front bottom of swash plate and links to each other, the front top of swash plate and the rear end face looks rigid coupling of plectane, the outer wall of plectane pegs graft with the top notch inner wall of montant mutually, the outer wall below of montant runs through continuously with the top right side of shell, just the outer wall below of montant and the top clearance fit of shell, the bottom of montan.

Preferably, the threaded rod, the circular plate, the round ball, the sleeve plate and the groove form a sliding mechanism.

Preferably, square frames are fixedly connected to the upper side and the lower side of the right end of the outer wall of the shell, and the inner walls of the two square frames are in clearance fit with the outer walls of the vertical rods respectively.

Preferably, a power mechanism is arranged in the sleeve;

the power mechanism comprises a motor, a bolt, a curved plate, a straight rod, a thick rod, a sealing ring and an impeller;

the left side of motor is adjacent with telescopic right side, both sides are respectively with the inner wall threaded connection through bolt and bent plate about the outer wall of motor, two both ends looks rigid coupling about the left side of bent plate respectively with telescopic right side, the output of motor and the right side looks rigid coupling of straight-bar, the outer wall of straight-bar links to each other with telescopic inner wall activity, the left side of straight-bar is pegged graft mutually with the right side of thick rod, the outer wall right side of thick rod rotates with the inner wall of sealing washer and links to each other, the outer wall of sealing washer and the inner wall right side looks rigid coupling of shell, the outer wall left side of thick rod and the inner wall looks rigid coupling of impeller.

Preferably, a support is fixedly connected to the lower portion of the outer wall of the motor, and a base is fixedly connected to the bottom of the support.

Preferably, a protection mechanism is installed on a groove in the top of the base;

the protection mechanism comprises a first short rod, a spring, a second short rod, a tool plate and a universal wheel;

two the outside of first quarter butt respectively with the top left side notch left and right sides looks rigid coupling of base, two the outer wall of first quarter butt cup joints with the inner wall left side of spring mutually, the inner wall right side of spring and the outer wall looks rigid coupling of second quarter butt, the right side of second quarter butt and the left side looks rigid coupling of worker's board, the bottom of worker's board and the top looks rigid coupling of universal wheel, the bottom of universal wheel and the top left side notch bottom rigid coupling of base.

Preferably, the left side and the right side of the two springs are fixedly connected with the left side and the right side of the notch on the left side of the top of the base and the left side and the right side of the tool plate respectively.

Preferably, the top of the form plate is inserted into the bottom of the shell.

Compared with the prior art, the invention has the beneficial effects that:

this single-stage centrifugal pump convenient to change impeller, it is fixed to shell and sleeve through fixed establishment control vertical pole, has saved the bolt fastening trouble, convenient to detach, and the impeller is changed conveniently, has reduced the work degree of difficulty, has improved work efficiency.

This single-stage centrifugal pump convenient to change impeller changes the bolt fastening form through fixed establishment, has prevented that the dropout from taking place, guarantees the installation, has ensured normal use, has prolonged life.

This single-stage centrifugal pump convenient to change impeller, cooperation through power unit bolt and bent plate makes sleeve and motor realize dismantling, and the motor of being convenient for is maintained, has guaranteed that the motor operates for a long time.

This single-stage centrifugal pump convenient to change impeller supports the worker's template through protection mechanism spring, makes the shell below eliminate the friction, utilizes the spring to slow down the vibration, has prevented the damage, saves the maintenance cost, has improved the practicality, the facilitate promotion.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the housing, the sleeve and the groove in FIG. 1;

FIG. 3 is a schematic view of the connection relationship between the groove, the threaded rod and the circular plate in FIG. 1;

FIG. 4 is a schematic view of the connection structure of the screw thread, the sleeve plate and the vertical plate in FIG. 1;

FIG. 5 is a schematic view of the connection structure of the base, the first short rod and the spring in FIG. 1;

fig. 6 is a schematic structural view of the connection relationship between the second short rod, the tooling plate and the universal wheel in fig. 1.

In the figure: 1. the device comprises a shell, 2, a fixing mechanism, 201, a threaded rod, 202, a circular plate, 203, a sphere, 204, a sleeve plate, 205, a vertical plate, 206, an inclined plate, 207, a circular plate, 208, a vertical rod, 3, a power mechanism, 301, a motor, 302, a bolt, 303, a curved plate, 304, a straight rod, 305, a thick rod, 306, a sealing ring, 307, an impeller, 4, a protection mechanism, 401, a first short rod, 402, a spring, 403, a second short rod, 404, a tooling plate, 405, a universal wheel, 5, a square frame, 6, a sleeve, 7, a groove, 8, a support, 9 and a base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

example 1

Example 2

the scheme in this embodiment can be selectively combined with the scheme in other embodiments.

Example 3

the scheme in this embodiment can be selectively combined with the scheme in other embodiments.

Example 4

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

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