CN214527606U

CN214527606U - Core cladding assembly and disassembly tools for multi-stage pump

Info

Publication number: CN214527606U
Application number: CN202120791977.5U
Authority: CN
Inventors: 何立民; 李小华; 李晓平; 强鑫涛; 卢俊龙
Original assignee: Ruhr Pump China Co ltd
Current assignee: Ruhr Pump China Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-10-29
Anticipated expiration: 2031-04-19

Abstract

The utility model relates to a core package assembly and disassembly tools for multistage pump belongs to multistage pump dismouting frock technical field. Including two hanging beam, two of parallel arrangement each other the hanging beam rear end is through the shaped steel connecting block fixed connection of a square, two the hanging beam front end passes through fixed plate fixed connection, two the hanging beam front end still is provided with a bearing crossbeam, bearing crossbeam center department is provided with the connecting hole that link up from top to bottom, install the connecting screw in the connecting hole, two hanging beam front end bottom is connected with the fulcrum mount, fulcrum is stabilized to the side about being connected with two vertical settings of fulcrum mount bottom surface bilateral symmetry, two still be provided with the main atress fulcrum of a vertical setting between the side is stabilized the fulcrum about, main atress fulcrum bottom still detachable is equipped with the locating pin.

Description

Core cladding assembly and disassembly tools for multi-stage pump

Technical Field

The utility model relates to a core package assembly and disassembly tools for multistage pump belongs to multistage pump dismouting frock technical field.

Background

At present, a double-shell horizontal multistage pump is commonly used in high-temperature, high-pressure and high-risk occasions and has wide application in industries such as petroleum refining, water injection and water supply and the like, and the double-shell horizontal multistage pump is composed of a pressure-bearing outer cylinder body and an inner core bag which is convenient to replace. Because the pump is usually used in a high-pressure working condition, the number of stages of the pump is often more, so that the internal core package is usually longer, the weight is large, the pump is very inconvenient to install in a factory and maintain and disassemble on site, and the installation and the maintenance operation can be carried out only by means of a hoisting tool and a special core package disassembling and assembling tool.

The current double-shell multistage pump core bag dismounting tool mostly adopts the following structural form: the core bag dismounting device is composed of three pairs of pulley blocks, corresponding guide rails, guide frames, a connecting shaft guide rod and a support frame, the pulley blocks are required to be firstly mounted on a core bag and a pump shell during dismounting, then the guide frames are mounted on the support frame, the guide rod is required to be connected with a shaft head at the other end during dismounting, and the core bag is extracted through the pulleys and the guide rails. The core package disassembling tool of the present has the following disadvantages:

1. the structure form is complex, the number of parts is large, and the tool production cost is high;

2. in the process of implementing disassembly and assembly, the tool parts need to be installed in advance according to steps, and a plurality of tool parts need to be disassembled after the pump core package is disassembled, so that the operation process is complicated, and the operation can be carried out only by the cooperation of a plurality of workers;

3. the disassembly and assembly tool with the structure needs to be disassembled and assembled by the guide rail guide frame, and the size of the guide frame is determined by the diameter of the core package, so that pumps with different sizes cannot be commonly used, and the universality is poor.

In view of the above-mentioned defects, the present designer actively makes research and innovation to create a tool for assembling and disassembling a core package of a multi-stage pump, which has a simple and ingenious structure, is convenient and easy to operate, and has a high degree of versatility, so that the tool has industrial utility value.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a core package assembly and disassembly tools for multistage pump. The utility model discloses a multistage pump is with core package assembly and disassembly tools traditional design has simple structure compactness, it is easy to make, the material acquires conveniently, cost advantage such as with low costs, this instrument is simple to use simultaneously, only need to connect a small amount of auxiliary parts such as locating pin and bolt and nut with the core package alright dismouting operation, very big simplification the operation flow, operating time has been saved, in addition the rotor assembly and disassembly tools of the invention, only need on the pump core package reserve standard screw hole and pinhole can, can adopt same assembly and disassembly tools to operate to the pump of equidimension not, have the advantage that the universalization degree is high, not only make things convenient for the user side to use, the degree of difficulty of instrument frock equipment management has still been reduced.

The utility model relates to a core cladding dismounting tool for a multistage pump, which comprises two hanging beams which are arranged in parallel,

two the shaped steel connecting block fixed connection of hanging beam rear end through a square, two the hanging beam front end passes through fixed plate fixed connection, two the hanging beam front end still is provided with a bearing crossbeam, bearing crossbeam center department is provided with the connecting hole that link up from top to bottom, install the connecting screw in the connecting hole, two hanging beam front end bottom is connected with the fulcrum mount, the fulcrum is stabilized to the side about being connected with two vertical settings of fulcrum mount bottom surface bilateral symmetry, two still be provided with the main atress fulcrum of a vertical setting between the side is stabilized the fulcrum about, main atress fulcrum bottom still detachable is equipped with the locating pin.

Furthermore, the hanging beam is a rectangular hollow steel structure, the bearing cross beam, the left and right side stable supporting points and the main stress supporting point are all steel plate structures, and the whole structure is connected through welding. Has the advantages of simple and compact structure, easy manufacture, convenient material acquisition, low manufacturing cost and the like.

Furthermore, the profile steel connecting block and the hanging beam are welded and fixed. Thereby ensuring the stability of the rear end of the hanging beam.

Furthermore, the fixed plate and the two hanging beams are perpendicular to each other.

Furthermore, the bearing cross beam and the two hanging beams are perpendicular to each other and fixedly connected through welding. Used for ensuring the stability of the front end of the hanging beam. The hoisting device is used for hoisting the multi-stage pump core package to be disassembled and assembled.

Furthermore, the fulcrum fixing frame and the two hanging beams are welded and fixed. For mounting the fulcrum.

Further, the bottom surfaces of the left and right side stable supporting points are inclined planes of 45 degrees. So as to ensure that the left side and the right side of the core bag are fixed and stable during disassembly and assembly.

Furthermore, the top end of the main stress fulcrum is fixedly connected with the bottom surface of the fulcrum fixing frame. For fixedly connecting with the front end of the core bag.

By the scheme, the invention at least has the following advantages:

the utility model discloses a multistage pump is with core package assembly and disassembly tools traditional design has simple structure compactness, it is easy to make, the material acquires conveniently, cost advantage such as with low costs, this instrument is simple to use simultaneously, only need to connect a small amount of auxiliary parts such as locating pin and bolt and nut with the core package alright dismouting operation, very big simplification the operation flow, operating time has been saved, in addition the rotor assembly and disassembly tools of the invention, only need on the pump core package reserve standard screw hole and pinhole can, can adopt same assembly and disassembly tools to operate to the pump of equidimension not, have the advantage that the universalization degree is high, not only make things convenient for the user side to use, the degree of difficulty of instrument frock equipment management has still been reduced.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a core package disassembling tool for a multistage pump according to the present invention;

fig. 2 is a schematic structural diagram of a practical state of the core bag dismounting tool for the multistage pump according to the present invention;

1. a hanging beam; 2. a load-bearing beam; 3. left and right side stable pivot points; 4. a main stress fulcrum; 5. a connecting screw; 6. connecting holes; 7. positioning pins; 8. a section steel connecting block; 9. a fixing plate; 10. a fulcrum fixing frame.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 and 2, a core bag dismounting tool for a multi-stage pump according to a preferred embodiment of the present invention includes two suspension beams 1 disposed in parallel,

the lifting beam 1 is a rectangular hollow steel structure, the rear ends of the two lifting beams 1 are fixedly connected through a square section steel connecting block 8, the section steel connecting block 8 and the lifting beam 1 are welded and fixed, so that the stability of the rear end of the lifting beam 1 is ensured, the front ends of the two lifting beams 1 are fixedly connected through a fixing plate 9, the fixing plate 9 and the two lifting beams 1 are arranged perpendicular to each other and used for ensuring the stability of the front end of the lifting beam 1, a bearing cross beam 2 is further arranged at the front end of the two lifting beams 1, the bearing cross beam 2 and the two lifting beams 1 are arranged perpendicular to each other and used for hoisting a multi-stage pump core package to be disassembled and assembled, the bearing cross beam 2 and the two lifting beams 1 are fixedly connected through welding, a connecting hole 6 which is vertically communicated is arranged at the center of the bearing cross beam 2, and a connecting screw 5 is arranged in the connecting hole 6, the multi-stage pump core package is used for connecting a multi-stage pump core package to be disassembled and assembled;

the bottom of the front end of each of the two hanging beams 1 is connected with a fulcrum fixing frame 10, the fulcrum fixing frame 10 and the two hanging beams 1 are welded and fixed for installing fulcrums, the bottom surfaces of the fulcrum fixing frames 10 are bilaterally and symmetrically connected with two vertically arranged left and right stable fulcrums 3, the bottom surfaces of the left and right stable fulcrums 3 are inclined planes of 45 degrees so as to ensure that the left and right sides of the core bag are fixed and stable during assembly and disassembly, a vertically arranged main stress fulcrum 4 is also arranged between the two left and right stable fulcrums 3, the top end of the main stress fulcrum 4 is fixedly connected with the bottom surface of the fulcrum fixing frame 10, the bearing cross beam 2, the left and right stable fulcrums 3 and the main stress fulcrum 4 are all of steel plate structures, the whole structure is connected by welding, the steel plate structure has the advantages of simple and compact structure, easy manufacture, convenient material acquisition, low manufacturing cost and the like, and the bottom of the main stress fulcrum 4 is also detachably provided with a positioning pin 7, for fixedly connecting with the front end of the core bag.

The working principle of the utility model is as follows:

the utility model discloses a core package assembly and disassembly tools for multistage pump adopts lever principle design, and application method is as follows during its dismouting operation:

installing the positioning pins 7 into the corresponding pin holes of the core package;

mounting a connecting screw 5 to a screw hole corresponding to the core package through a connecting hole 6 on the bearing cross beam 2 of the dismounting tool;

the pin hole on the main stress fulcrum 4 is aligned with the positioning pin and is placed in place;

finally, the whole internal core package can be hung up by the hanging strip for assembly and disassembly operation.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a core package assembly and disassembly tools for multistage pump, includes two mutual parallel arrangement's hanging beam, its characterized in that:

2. The core package disassembling tool for the multi-stage pump according to claim 1, wherein: the hanging beam is a rectangular hollow steel structure, the bearing cross beam, the left and right side stabilizing fulcrums and the main stress fulcrum are all steel plate structures, and the whole structure is connected through welding.

3. The core package disassembling tool for the multi-stage pump according to claim 1, wherein: and the profile steel connecting block and the hanging beam are welded and fixed.

4. The core package disassembling tool for the multi-stage pump according to claim 1, wherein: the fixed plate and the two hanging beams are perpendicular to each other.

5. The core package disassembling tool for the multi-stage pump according to claim 1, wherein: the bearing cross beam and the two hanging beams are perpendicular to each other and fixedly connected through welding.

6. The core package disassembling tool for the multi-stage pump according to claim 1, wherein: the fulcrum fixing frame and the two hanging beams are welded and fixed.

7. The core package disassembling tool for the multi-stage pump according to claim 1, wherein: the bottom surfaces of the left and right side stable supporting points are inclined planes of 45 degrees.

8. The core package disassembling tool for the multi-stage pump according to claim 1, wherein: the top end of the main stressed fulcrum is fixedly connected with the bottom surface of the fulcrum fixing frame.