CN210232873U

CN210232873U - Rectangular dismounting tool for coupler

Info

Publication number: CN210232873U
Application number: CN201921054801.0U
Authority: CN
Inventors: Ping Ge; 葛坪; Hui Liu; 刘辉; Dongzhi Li; 李冬志; Shugang He; 何书刚; Haitao Liu; 刘海涛
Original assignee: SEPCO3 Electric Power Construction Co Ltd
Current assignee: SEPCO3 Electric Power Construction Co Ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-04-03
Anticipated expiration: 2029-07-08

Abstract

The utility model belongs to the technical field of motor maintenance, and discloses a rectangular disassembling tool for a coupler, which comprises two rectangular steel plates, a fixed screw nut component and a jack, wherein the rectangular steel plates are cut into holes in the middle, the holes are rectangular without four corners, and the four corners of the rectangular steel plates are respectively provided with round holes for the fixed screws to pass through; the two rectangular steel plates are placed on two sides of the coupler and fixed through the fixing screw and nut assemblies, the jack is located between the coupler and the rectangular steel plates, the ejector rod of the jack abuts against the rotating shaft of the motor rotor, and the bottom of the jack abuts against the two rectangular steel plates. The utility model discloses simple structure, the preparation is convenient, and adaptability is high, saves the manual work when dismantling the shaft coupling, and convenient operation increases the security that the shaft coupling was dismantled, and can demolish the shaft coupling of multiple different models, style, can effectively practice thrift repair time.

Description

Rectangular dismounting tool for coupler

Technical Field

The utility model belongs to the technical field of the motor overhauls, in particular to coupling rectangle extracting tool.

Background

In the prior art, when the coupler is disassembled in the process of repairing and disassembling the coupler by the motor, the coupler cannot be disassembled by using a common triangular puller due to the fact that the coupler is connected with a rotating shaft of a motor rotor too tightly, a mechanical jack or a special tool is needed, the conventional disassembling coupler is formed by welding a steel plate with a jacking block, two screw rods penetrate through the jacking block and the coupler at the same time, and then the mechanical jack is used for disassembling, for example, the coupler disassembling tool disclosed in patent 201721624122.3. The method is only suitable for the coupler with holes, the stress point is small, the coupler is difficult to disassemble and easy to damage when the coupler is assembled and fastened. For the large gear type coupling, a professional large disassembling tool needs to be purchased, and the large gear type coupling is difficult to disassemble by a common self-made tool. The above two methods have the following defects: the manufacturing procedure is tedious, the adaptation is single, the operation is troublesome, the safety coefficient is lower, the cost for purchasing a professional disassembling tool is very high, and the cost performance is too low.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a coupler rectangular dismounting tool, which saves labor when dismounting a coupler, is convenient to operate, increases the dismounting safety of the coupler, can dismount couplers of various types and styles, can effectively save the maintenance time and meet different maintenance sites; simple structure, convenient preparation, the commonality is high, and the monoblock steel sheet cutting forms, and inside cutting hole shape has increased the bearing capacity at four angles for lacking four corners rectangle, and does not have welded structure, and is very firm stable.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a rectangular disassembling tool for a coupler comprises two rectangular steel plates, a fixing screw nut assembly and a jack, wherein a hole is cut in the middle of each rectangular steel plate, the shape of the hole is a rectangle without four corners, and round holes for a fixing screw to pass through are respectively formed in the four corners of each rectangular steel plate; the two rectangular steel plates are placed on two sides of the coupler and fixed through the fixing screw and nut assemblies, the jack is located between the coupler and the rectangular steel plates, the ejector rod of the jack abuts against the rotating shaft of the motor rotor, and the bottom of the jack abuts against the two rectangular steel plates.

Furthermore, the two rectangular steel plates are positioned at two sides of the coupler and clamped at the protruding positions of the coupler and the shaft.

Furthermore, two rectangle steel sheets form no welded structure by the cutting of monoblock steel sheet, and steel sheet thickness is not less than 10 mm.

Furthermore, the widths of four frames of the rectangular steel plate are not less than 50 mm.

Furthermore, the diameter of the round hole on the rectangular steel plate is 10 mm.

Furthermore, the fixed screw nut assembly comprises four groups of fixed screws and nuts, and the fixed screws are all-thread screws.

Furthermore, the fixing screw rods fix the rectangular steel plates on two sides of the coupler, and the distance between the two rectangular steel plates is adjusted by screwing the nuts.

Compared with the prior art, the utility model discloses the advantage lies in:

1. the utility model discloses a rectangular shaft coupling extracting tool can effectively be directed against the dismantlement of large-scale gear type shaft coupling, solves large-scale gear type shaft coupling and dismantles the problem of relying on large-scale specialized tool such as draw the horse, can effectively practice thrift the cost of overhaul.

2. By adopting the shaft coupling disassembling tool, the labor is saved when the shaft coupling is disassembled, the operation is convenient, the disassembling safety of the shaft coupling is improved, the disassembling tool can disassemble the shaft couplings with different types and styles, the overhauling time can be effectively saved, different overhauling fields are met, the disassembling tool is simple in structure, common in manufacturing materials, low in cost, convenient to manufacture and high in universality;

3. the rectangular shaft coupling disassembling tool of the utility model adopts a whole steel plate to be cut into a non-welding structure, simplifies the manufacturing process of the tool, effectively avoids the defects caused by welding, and is simpler and more convenient to manufacture; the integral firmness and the tensile strength of the steel plate can be ensured, and the safety of the coupler disassembling tool in the using process can be ensured;

4. the middle of the rectangular steel plate is cut into the holes, the holes are rectangular without four corners, the connection strength and the bearing capacity of four corners of the rectangular steel plate are improved, the tensile strength of the four corners is increased, and the use safety of a shaft coupling disassembling tool is ensured;

5. the utility model discloses a rectangular steel plate part adopts the 10mm steel sheet, and the material is easily looked for in construction and maintenance project, simple manufacture, low in cost, the practicality is strong.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a rectangular steel plate structure of the present invention;

fig. 2 is a disassembly schematic view of the coupling rectangular disassembling tool of the present invention;

fig. 3 is a schematic view of an assembly structure of the rectangular shaft coupling disassembling tool of the present invention;

FIG. 4 is a schematic view of the rectangular shaft coupling removal tool of the present invention;

fig. 5 is a side view of fig. 4.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the coupling rectangular dismounting tool of the embodiment includes two rectangular steel plates 1, a fixing screw nut assembly 2, and a jack 3, where the fixing screw nut assembly 2 includes four sets of fixing screws and matching nuts. Two rectangle steel sheets 1 are cut by the monoblock steel sheet and are made without welded structure, simplify the preparation technology of instrument, effectively avoided the welding can cause the defect, the preparation is more simple and convenient to can guarantee the whole fastness and the resistant pulling force of steel sheet, guarantee the safety of shaft coupling extracting tool in the use.

The trompil of cutting in the middle of two rectangular steel sheet 1, the trompil shape is for lacking four corners rectangle, has improved the joint strength at four angles of rectangular steel sheet, increases the resistant tensile strength at four angles, guarantees shaft coupling extracting tool's safe in utilization. And the four corners of the rectangular steel plate 1 are respectively provided with a round hole 4 for the fixed screw to pass through.

As shown in fig. 3-5, two rectangular steel plates 1 are placed on two sides of a coupler 5, the two rectangular steel plates 1 are fixed through a fixing screw nut assembly 2, namely, a fixing screw passes through the four round holes 4, and the two rectangular steel plates 1 are fixed on two sides of the coupler 5, so that the use safety of a coupler dismounting tool is ensured.

The jack 3 is positioned between the coupler 5 and the rectangular steel plates 1, the ejector rod of the jack 3 is propped against the rotating shaft of the motor rotor, and the bottom of the jack 3 is propped against the two rectangular steel plates 1. The jack 3 can be flexibly selected according to the size of the coupler, can be used for dismounting couplers of various different models and styles, and can effectively save maintenance time.

As a preferred embodiment, the rectangular steel plate 1 has a thickness of not less than 10mm, and the width of four frames of the rectangular steel plate after cutting is not less than 50mm, so that the tensile strength of the rectangular steel plate can be ensured, and the phenomenon of bending deformation does not occur during the process of stressing.

As a preferred embodiment, the diameter of the round hole at the four corners of the rectangular steel plate 1 is 10mm, and the round hole is used for fixing the rectangular steel plate 1 at the two sides of the coupler 5 by the fixing screw, so that the rectangular steel plate is prevented from falling off in the use process, and the use safety of the tool is ensured.

As a preferred embodiment, the middle opening cutting size of the rectangular steel plate 1 is related to the size of the coupler 5, multiple types of couplers can be arranged, the size difference of the couplers of different types is mainly considered, the opening size of the rectangular steel plate can be properly adjusted, and the universality of the coupler disassembling tool is improved.

As a preferred embodiment, two rectangular steel plates 1 are respectively placed on two sides of the coupler and clamped at the protruding positions of the coupler and the shaft, a jack 3 is placed between the two rectangular steel plates and the coupler, a top rod of the jack 3 is pressed against the shaft, and the bottom of the jack 3 is seated on the two rectangular steel plates 1.

As a preferred embodiment, the fixing screw is a full-thread screw, the distance between the two rectangular steel plates 1 can be flexibly adjusted by screwing the nut, the fixing screw is suitable for various types of couplers, the requirements of disassembling couplers of different types are met, and the universality of the coupler disassembling tool is improved.

The operation method of the coupling rectangular disassembling tool of the present embodiment is explained as follows:

firstly, two rectangular steel plates 1 are respectively placed on two sides of a coupler 5 and clamped at the protruding positions of the coupler and a shaft, and a fixing screw and a matched nut penetrate through a round hole 4 on the rectangular steel plate 1 to fix the two rectangular steel plates 1. The mechanical jack 3 is placed between the two rectangular steel plates 1 and the coupler 5, the ejector rod of the jack 3 props against the shaft, and the bottom of the jack 3 is seated on the two rectangular steel plates 1.

And operating the mechanical jack to stress, checking that the two rectangular steel plates are clamped at the protruding positions of the coupler and the shaft, and clamping the two sides firmly and uniformly. And checking that a 1mm gap is left between the two rectangular steel plates and the shaft for placing the damaged shaft. And (3) checking that the ejector rod of the mechanical jack is jacked on the shaft and has no friction with the shaft coupler and is uniformly stressed, and checking that the bottom of the mechanical jack is firmly clamped with the two rectangular steel plates and is uniformly stressed. And after the inspection is finished, operating the mechanical jack to enable the mechanical jack to be stressed slowly, if the mechanical jack is stressed greatly, then the coupler is not loosened, uniformly knocking the outer wall of the coupler by using a red copper bar, and slowly operating the mechanical jack. And operating the mechanical jack to slowly eject the coupler until the coupler is loosened.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should also understand that the changes, modifications, additions or substitutions made within the scope of the present invention should belong to the protection scope of the present invention.

Claims

1. A rectangular disassembling tool for a coupler is characterized by comprising two rectangular steel plates, a fixing screw nut assembly and a jack, wherein a hole is cut in the middle of each rectangular steel plate, the shape of the hole is a rectangle without four corners, and round holes for a fixing screw to pass through are respectively arranged on the four corners of each rectangular steel plate; the two rectangular steel plates are placed on two sides of the coupler and fixed through the fixing screw and nut assemblies, the jack is located between the coupler and the rectangular steel plates, the ejector rod of the jack abuts against the rotating shaft of the motor rotor, and the bottom of the jack abuts against the two rectangular steel plates.

2. The rectangular coupler removal tool of claim 1, wherein: the two rectangular steel plates are positioned on two sides of the coupler and clamped at the protruding positions of the coupler and the shaft.

3. The rectangular coupler removal tool of claim 1, wherein: the two rectangular steel plates are cut by a whole steel plate to form a non-welding structure, and the thickness of the steel plate is not less than 10 mm.

4. A rectangular coupling disassembly tool of claim 1 or 3, wherein: the widths of four frames of the rectangular steel plate are not less than 50 mm.

5. The rectangular coupler removal tool of claim 1, wherein: the diameter of the round hole on the rectangular steel plate is 10 mm.

6. The rectangular coupler removal tool of claim 1, wherein: the fixed screw and nut assembly comprises four groups of fixed screws and nuts, and the fixed screws are all-threaded screws.

7. The rectangular coupler removal tool of claim 6, wherein: the fixing screw rods fix the rectangular steel plates on two sides of the coupler, and the distance between the two rectangular steel plates is adjusted by screwing the nuts.