CN219882343U

CN219882343U - Positioning tool for shaft end coupling press fitting

Info

Publication number: CN219882343U
Application number: CN202321715014.2U
Authority: CN
Inventors: 毕涛; 刘德华; 周钦臣
Original assignee: Qilis Wuhan Smart Water Technology Co ltd
Current assignee: Qilis Wuhan Smart Water Technology Co ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-10-24
Anticipated expiration: 2033-07-03

Abstract

The utility model relates to the technical field of secondary water supply equipment, in particular to a positioning tool for shaft end coupling press fitting, which at least comprises the following components: a clamping sleeve (8), a sleeve (5) and a base platform (6); in the process of pressing the coupler, the sleeve (5) is arranged on the base platform (6), and the clamping sleeve (8) is arranged on the sleeve (5); the shaft piece (4) to be pressed is clamped through the shaft clamping sleeve (8), so that the shaft piece (4) is suspended in the sleeve (5). The utility model effectively solves the technical problem of deformation caused by the press mounting of the water pump shaft body by the way of hanging the shaft part for press mounting the coupling, and has the advantages of convenient press mounting, small destructiveness, high yield and the like.

Description

Positioning tool for shaft end coupling press fitting

Technical Field

The utility model relates to the technical field of secondary water supply equipment, in particular to a positioning tool for press fitting of a shaft end coupler.

Background

In the assembly process of the secondary water supply equipment water pump, the shaft coupler needs to be pressed to the shaft end of the shaft body. The shaft body of the multi-impeller centrifugal water pump is generally long due to the structural requirement of the multi-impeller centrifugal water pump.

In the shaft body installation process of the existing water pump, a limiting type press-fitting mode is often adopted, namely one end of the shaft body is limited, and the other end of the shaft body is press-fitted by a hydraulic press. However, the adaptability of the limiting press-fitting mode to the press-fitting of the long shaft body is poor, and as the limiting end of the shaft body is acted by the radial force applied by the hydraulic press, deformation such as bending, twisting and the like occurs when the end part is uneven or the bearing capacity of the section load of the shaft body is poor. Meanwhile, the deformation is relatively fine, and is difficult to observe through naked eyes, but the operation of the water pump is abnormal in the actual operation process of the shaft body, so that the service life of the water pump is influenced, and the user experience is influenced.

Disclosure of Invention

Aiming at the technical problem that the shaft body is easy to bend in the press-mounting process of the limiting shaft end coupler in the prior art, the utility model provides a positioning tool for press-mounting the shaft end coupler, which at least has the advantages of convenience in press-mounting, small destructiveness, high yield and the like.

The utility model provides a positioning tool for press fitting of a shaft end coupler, which at least comprises the following components: the device comprises a clamping sleeve, a sleeve and a base platform; in the process of pressing the coupler, the sleeve is arranged on the base platform, and the clamping sleeve is arranged on the sleeve; and the shaft sleeve is used for clamping the shaft piece to be pressed, so that the shaft piece is suspended in the sleeve.

Specifically, one of the concepts of the utility model enables the shaft parts to be suspended for press-fitting through the matching of the sleeve and the clamping sleeve, thereby ensuring that the shaft parts do not bend during press-fitting, and improving the yield of the shaft parts.

Further, the clamping sleeve is provided with a groove according to the outer diameter of the sleeve.

Further, the clamping sleeve comprises: two detachable clamping shaft blocks and locking screws; the two clamping shaft blocks are tightened through the locking screw, so that the clamping operation of the shaft parts is realized.

Specifically, the clamping shaft sleeve comprises two clamping shaft blocks which can be surrounded, and the shaft parts are clamped through locking screws.

Further, the clamping sleeve further comprises: a rubber pad; the rubber pad is arranged between the two clamping shaft blocks.

Specifically, the rubber pad material is hard, wear-resisting and friction force coefficient is big, can effectively avoid the friction of clamping sleeve and axle class spare in the shaft coupling crimping process, and cause the damage to axle class spare.

Further, the rubber pad is fixedly adhered to any clamping shaft block.

In some embodiments, the base platform is provided with a sunken groove according to the shape of the clamping sleeve.

In some embodiments, the utility model further comprises a spacer; the cushion block is arranged between the clamping sleeve and the sleeve.

In particular, a further concept of the present utility model is to reduce the complexity of the shaft clamp fastening timing by the provision of the spacer blocks.

Further, the shaft member can be abutted to the base platform when the cushion block is removed.

Further, the cushion block is arranged to be of an open-close type structure.

Specifically, through the open-close type structure of cushion, make things convenient for the cushion to install in the sleeve.

Further, the open-close structure includes: a pivoting structure or a hinge structure.

In summary, the positioning tool for press fitting of the shaft end coupling provided by the utility model has the advantages that press fitting of shaft parts can be realized in a suspended state through matching of the shaft clamping sleeve, the sleeve and the base platform, and the positioning tool at least has the advantages of convenience in press fitting, small destructiveness, high yield and the like.

Drawings

The utility model will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the utility model. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

Fig. 1 is a schematic diagram of a positioning tool for press-fitting a shaft end coupling according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a shaft member suspended in the air;

FIG. 3 is a schematic diagram of the operation of a bushing provided by an embodiment of the present utility model;

FIG. 4 is a schematic view illustrating the disassembly of a clamping sleeve according to an embodiment of the present utility model;

1. a hydraulic press; 2. the hydraulic machine head; 3. a coupling; 4. a shaft member; 5. a sleeve; 6. a base platform; 7. a locking screw; 8. a clamping sleeve; 9. and a rubber pad.

Detailed Description

The present utility model will be described in detail with reference to fig. 1 to 4.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1, a positioning tool schematic diagram for press-fitting of a shaft end coupler 3 is provided in the embodiment of fig. 1.

Specifically, when the coupling 3 is press-fitted, the shaft member 4 is locked to the sleeve 8 by the locking screw 7, and the shaft member 4 protrudes out of the sleeve 8, so that a press-fitting space of the coupling 3 is reserved. Then the sleeve 8 is inserted into the sleeve 5 together with the shaft 4, and the length inside the sleeve 5 is longer than the remaining length of the shaft 4 clamped by the sleeve 8, so that the shaft 4 is suspended in the sleeve 5. Simultaneously, the shaft clamping sleeve 8 and the sleeve 5 are placed on the base platform 6 together with the shaft piece 4, and the hydraulic machine 1 is used for pressing the hydraulic machine head 2 at the moment, so that the shaft coupler 3 is pressed on the shaft piece 4.

Because the shaft part 4 is always in a suspended state through the clamping of the clamping sleeve 8 and the sleeve 5 in the press fitting process of the shaft coupler 3 (see the suspended schematic diagram of the shaft part 4 provided by the embodiment of the utility model in fig. 2, shown in fig. 2), only the head part of the shaft part 4 to be press-fitted is stressed, the problem that the two ends of the shaft part 4 are stressed in the press fitting process is solved, the shaft part 4 can be kept straight in the press fitting process, the damage to the shaft part 4 is avoided, and the press fitting yield of the shaft coupler 3 is improved.

Wherein the sleeve 5 is configured to be a cylinder shape fitting the shaft member 4; the shaft clamping sleeve 8 is a square block, the inside of the shaft clamping sleeve 8 comprises a round hole with the diameter slightly smaller than that of the shaft piece 4, and the shaft clamping sleeve 8 is divided into two shaft clamping blocks which are bilaterally symmetrical. During operation, the two clamping blocks are clamped by the locking screw 7 (see fig. 3, which is a schematic diagram illustrating the operation of the clamping sleeve 8 according to the embodiment of the present utility model shown in fig. 3). It should be noted that a through threaded hole is provided in the clamping shaft block for locking by the locking screw 7.

Further, referring to fig. 4, a schematic diagram of disassembly of the clamping shaft sleeve 8 provided in the embodiment of the present utility model in fig. 4 is shown, four through threaded holes are provided around the clamping shaft block, and locking engagement is performed by four internal hexagonal locking screws 7.

Further, be provided with rubber pad 9 in the middle of two clamp axle pieces, because the diameter of clamp axle sleeve 8 is slightly less than axle class piece 4, in order to avoid clamp axle sleeve 8 to lead to the fact the damage to axle class piece 4 in pressing from both sides tight in-process, have added to have established and have had elasticity rubber pad 9, can effectively reduce the damage to axle class piece 4 when clamp axle sleeve 8 presss from both sides tightly.

Furthermore, the hardness of the material selected for the sleeve 8 is smaller than that of the shaft piece 4.

Further, at the planar position of the laminating of the clamping sleeve 8 and the base platform 6 with the sleeve 5, a groove slightly larger than the diameter of the sleeve 5 is arranged, and through the effect of the groove, the installation cooperation of the clamping sleeve 8, the sleeve 5 and the base platform 6 is realized, and the stability of the three parts after the assembly is greatly improved.

In some embodiments, a spacer is provided between the clamping sleeve 8 and the sleeve 5. Because of the suspended state of the shaft piece 4 in the sleeve 5, the shaft piece 4 needs to be clamped by the clamping sleeve 8 and then put into the sleeve 5, so that the installation time is wasted. Thus, a spacer is provided between the clamping sleeve 8 and the sleeve 5.

The sleeve 8 and the sleeve 5 are arranged according to the length of the shaft element 4 which needs to be reserved for the coupling 3 during press fitting. At this time, the shaft member 4 can be directly inserted into the clamping sleeve 8 and the sleeve 5, and the shaft member 4 just abuts against the base platform 6, so that the length reserved for the press-fitting of the coupling 3 is exposed. Then, the locking screw 7 is tightened to lock the shaft 4. And lifting the clamping shaft sleeve 8, and placing the cushion block between the clamping shaft sleeve 8 and the sleeve 5, so that the shaft piece 4 is suspended in the sleeve 5. Finally, the coupling 3 is press-fitted. Through the arrangement of the cushion blocks, the press-fitting efficiency of the shaft parts 4 can be greatly improved.

Further, the diameter of the cushion block reserved hole is larger than that of the shaft piece 4.

In order to facilitate placement of the cushion block, the cushion block is of an open-close type structure.

Further, the cushion block is in a circular ring shape and is divided into a left half block and a right half block, and the two half blocks are connected through a bolt or a hinge, so that the two half blocks are opened and closed. After lifting the clamping shaft sleeve 8, the clamping shaft sleeve 8 is lifted by folding the opened and closed half blocks into a circular ring shape.

The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present utility model may be better understood. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. A location frock for axle head shaft coupling pressure equipment, its characterized in that includes at least: a clamping sleeve (8), a sleeve (5) and a base platform (6);

in the process of pressing the coupler, the sleeve (5) is arranged on the base platform (6), and the clamping sleeve (8) is arranged on the sleeve (5); the shaft piece (4) to be pressed is clamped through the shaft clamping sleeve (8), so that the shaft piece (4) is suspended in the sleeve (5).

2. A positioning tool for press fitting of shaft end couplings according to claim 1, characterized in that the clamping sleeve (8) is provided with grooves according to the outer diameter of the sleeve.

3. A positioning fixture for press fitting of shaft end couplings according to claim 2, characterized in that the clamping sleeve (8) comprises: two detachable clamping shaft blocks and a locking screw (7);

the two clamping shaft blocks are tightened by the locking screw (7), so that the clamping operation of the shaft piece (4) is realized.

4. A positioning fixture for press fitting of shaft end couplings according to claim 3, characterized in that the clamping sleeve (8) further comprises: a rubber pad (9);

the rubber pad (9) is arranged between the two clamping shaft blocks.

5. A positioning fixture for press fitting of shaft end couplings according to claim 4, characterized in that the rubber pad (9) is adhesively fixed to any of the clamping blocks.

6. A positioning fixture for press fitting of shaft end couplings according to claim 1, characterized in that the base platform (6) is provided with a sunk groove according to the shape of the clamping sleeve (8).

7. The positioning tool for press fitting of a shaft end coupling according to claim 1, further comprising a spacer block; the cushion block is arranged between the clamping sleeve (8) and the sleeve (5).

8. A positioning tool for press fitting of shaft end couplings according to claim 7, characterized in that the shaft parts (4) can be abutted against the base platform (6) when the spacer blocks are removed.

9. The positioning tool for press fitting of shaft end couplings of claim 7, wherein the spacer is of an open-close type structure.

10. The positioning tool for press fitting of shaft end couplings of claim 9, wherein the open-close structure comprises: a pivoting structure or a hinge structure.