CN211759664U

CN211759664U - Bearing press-fitting machine for centrifugal pump motor

Info

Publication number: CN211759664U
Application number: CN201922209946.XU
Authority: CN
Inventors: 陈伯生; 毛雁峡; 袁群
Original assignee: Yixing Linggu Plastic Equipment Co ltd
Current assignee: Yixing Linggu Plastic Equipment Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-27
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a centrifugal pump motor shaft press-fitting machine, belonging to the technical field of water pump manufacturing, wherein a press-fitting machine main body is arranged on a press-fitting machine frame through a lifting device; two ends of a main body of the press-mounting machine are respectively provided with a tool, the two tools are opposite in position and are on the same horizontal position, the center of each tool is provided with a center, and the two center centers are located on the same horizontal line and are opposite; the center and the tool are driven by the composite oil cylinder to move in the horizontal direction respectively; the bearing is arranged in the tool; a bearing seat is arranged between the two tools and used for placing a main shaft, and a servo jacking mechanism is arranged below the front end of the main shaft; the bearing seat and the servo jacking mechanism are fixedly arranged on the platform, and the platform is fixed on a press-mounting machine frame. The utility model discloses climbing mechanism helps accomplishing the horizontal location of main shaft on the bearing frame, utilizes compound hydro-cylinder to carry out the pressure equipment that the main shaft is fixed and the bearing, is applicable to the special construction installation of centrifugal pump main shaft.

Description

Bearing press-fitting machine for centrifugal pump motor

Technical Field

The utility model relates to a centrifugal pump motor shaft pressure bearing installation belongs to the water pump and makes technical field.

Background

The automatic rework plate motor bearing end cover press-fitting assembly line is automation equipment widely applied to the motor industry, has the advantages of high production efficiency, high installation precision and low labor intensity of workers, does not need to be knocked by a large hammer during bearing assembly, and has little damage to the bearing. The main shaft of the centrifugal pump is supported and operated by the bearings at the two ends of the bearing box, so the assembly line can be used in the press fitting process of the main shaft of the bearing seat of the centrifugal pump and the bearings after reasonable improvement, and the assembly line suitable for the press fitting of the bearing seat of the centrifugal pump is redesigned and arranged on the basis.

However, in design, after an original motor rotor is placed in an inner hole of a motor stator, due to the fact that the gap between the stator and the rotor is small, the center height of the press-fitting machine can be used for press-fitting a bearing after a main shaft is centered as long as the center height is positioned to a specified height, but a large gap exists between a bearing box and the main shaft of the centrifugal pump, and the main shaft cannot be aligned with an existing motor bearing end cover press-fitting center after being placed in the bearing box.

Disclosure of Invention

The utility model is directed against the above technical problem, a motor bearing press-fitting machine suitable for centrifugal pump main shaft installation bearing is provided, the pressure equipment of bearing frame main shaft and bearing is accomplished in assistance that can be fine.

The motor shaft press-fitting machine comprises a press-fitting machine main body, a press-fitting machine frame and a lifting device of the press-fitting machine main body controlled by a servo motor, wherein the press-fitting machine main body is arranged on the press-fitting machine frame through the lifting device; two ends of the main body of the press-mounting machine are respectively provided with a tool, the two tools are opposite in position and are positioned on the same horizontal position, the center of each tool is provided with a center, and the two center centers are positioned on the same horizontal line and are opposite; the center and the tool are driven by the composite oil cylinder to move in the horizontal direction respectively; the bearing is arranged in the tool; a bearing seat is arranged between the two tools and used for placing a main shaft, the main shaft is placed on the bearing seat, the bearing seat consists of a plurality of open-close clamping parts, and the clamping parts of the bearing seat respectively clamp a neck part with a thinner front end and a rear end shaft tail of the main shaft; the neck part and the shaft tail are respectively positioned at the inner side of the bearing mounting part; the front end and the rear end of the main shaft respectively point to a tool; a servo jacking mechanism is arranged below the front end of the main shaft, is supported at the front end of the main shaft and keeps the main shaft in a horizontal state; the bearing seat and the servo jacking mechanism are fixedly arranged on the platform, and the platform is fixed on a press fitting machine frame.

Preferably, the composite oil cylinder comprises an inner oil cylinder and an outer oil cylinder, the inner oil cylinder is coaxially arranged in the outer oil cylinder, the inner oil cylinder extends and retracts in the outer oil cylinder, the center tip is arranged at the end part of the inner oil cylinder, and the tool is arranged on the outer oil cylinder.

The utility model provides a centrifugal pump motor bearing pressure equipment machine, climbing mechanism help accomplishing the horizontal location of main shaft on the bearing frame, utilize compound cylinder to carry out the pressure equipment of the fixed and bearing of main shaft, are applicable to the special construction installation of centrifugal pump main shaft.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 shows one of the movement states of the present invention;

fig. 3 shows the second exercise state of the present invention;

fig. 4 shows a third exercise state of the present invention;

fig. 5 shows the fourth exercise state of the present invention.

Detailed Description

The specific technical solution of the present invention will be described with reference to the embodiments.

As shown in fig. 1, the motor bearing press-mounting machine comprises a press-mounting machine main body 7, a press-mounting machine frame 6 and a lifting device 8 of the press-mounting machine main body 7 controlled by a servo motor, wherein the press-mounting machine main body 7 is mounted on the press-mounting machine frame 6 through the lifting device 8; two ends of the press-mounting machine main body 7 are respectively provided with a tool 3, the two tools 3 are opposite in position and are positioned on the same horizontal position, the center of each tool 3 is provided with a center point 10, and the two center points 10 are positioned on the same horizontal line and are opposite; the center centre 10 and the tool 3 are respectively driven by the composite oil cylinder 4 to move in the horizontal direction; the bearing 9 is arranged in the tool 3;

a bearing seat 2 is arranged between the two tools 3, the bearing seat 2 is used for placing a main shaft 1, the main shaft 1 is placed on the bearing seat 2, the bearing seat 2 consists of a plurality of open-close clamping parts, and the clamping parts of the bearing seat 2 respectively clamp a neck part with a thin front end and a tail part with a thin rear end of the main shaft 1; the neck part and the shaft tail are respectively positioned at the inner side of the bearing mounting part;

the front end and the rear end of the main shaft 1 respectively point to a tool 3; a servo jacking mechanism 5 is arranged below the front end of the main shaft 1, and the servo jacking mechanism 5 is supported at the front end of the main shaft 1 to keep the main shaft 1 in a horizontal state;

the bearing seat 2 and the servo jacking mechanism 5 are fixedly arranged on a platform, and the platform is fixed on a press-mounting machine frame 6.

The composite oil cylinder 4 comprises an inner oil cylinder and an outer oil cylinder, the inner oil cylinder is coaxially arranged in the outer oil cylinder, the inner oil cylinder extends and retracts in the outer oil cylinder, the center point 10 is arranged at the end part of the inner oil cylinder, and the tool 3 is arranged on the outer oil cylinder.

When the main shaft 1 is placed in the bearing seat 2, the neck part at the front end is thin, and the tail part at the rear end is thick, so that the main shaft 1 is placed on the clamping part of the bearing seat 2, the front end of the main shaft 1 is inclined downwards, and the main shaft 1 deviates from the central line of the bearing seat 2 and is not parallel to the central lines of two finials 10 of the press-mounting machine; at this time, the servo jacking mechanism 5 jacks the spindle 1 upwards to a specified central height H1, and the central height of the press-mounting machine main body 7 is synchronously lowered to a central height H1 under the control of the lifting device 8, as shown in FIG. 2; ejecting the composite oil cylinder 4 on the press-mounting machine main body 7, and ejecting center points 10 at two ends into center holes at two ends of the main shaft to fix the main shaft, as shown in fig. 3; after the main shaft is fixed, the press-mounting machine main body 7 is driven by the lifting device 8 to be lifted upwards to a specified central height H2 of the bearing seat 2 together with the composite oil cylinder 4, the center point 10 and the main shaft 1, and meanwhile, the servo jacking mechanism 5 descends to leave a safe gap for ejecting the tool 3, as shown in FIG. 4; after the processes are completed, the tool 3 extends out, the bearing 9 is pushed and pressed onto the spindle 1, the bearing press-mounting process is completed, the composite oil cylinders 4 at the two ends are ejected out until the tool 3 is limited in position, the oil cylinders are retracted as shown in fig. 5, and the spindle bearing press-mounting process is completed. Simple structure, but can effectively improve pressure equipment efficiency, alleviate workman intensity of labour.

The composite oil cylinder 4 is a structure that an inner oil cylinder is sleeved in an outer oil cylinder, a center centre 10 is arranged on the inner oil cylinder and used for fixing the main shaft 1, the center heights of the main shaft 1 and the bearing seat 2 are ensured to be consistent, the composite oil cylinder is controlled by an external adjustable constant-pressure hydraulic element, the pressure in the oil cylinder of the center centre 10 is kept constant, the force of the center centre 10 against the main shaft 1 is ensured to be within a reasonable range, the main shaft 1 can be propped against without falling off, and the main shaft 1 is not damaged; and the outer oil cylinder mounting tool 3 is used for pressing the bearing 9 onto the main shaft 1.

Claims

1. The centrifugal pump motor shaft press fitting machine comprises a press fitting machine main body (7), a press fitting machine frame (6) and a lifting device (8) of the press fitting machine main body (7) controlled by a servo motor, wherein the press fitting machine main body (7) is installed on the press fitting machine frame (6) through the lifting device (8); the tool is characterized in that two ends of a press-mounting machine main body (7) are respectively provided with a tool (3), the two tools (3) are opposite in position and are positioned on the same horizontal position, the center of each tool (3) is provided with a center tip (10), and the two center tips (10) are positioned on the same horizontal line and are opposite; the center centre (10) and the tool (3) are driven by the composite oil cylinder (4) to move in the horizontal direction respectively; the bearing (9) is arranged in the tool (3);

a bearing seat (2) is arranged between the two tools (3), the bearing seat (2) is used for placing a main shaft (1), the main shaft (1) is placed on the bearing seat (2), the bearing seat (2) is composed of a plurality of open-close clamping parts, and the clamping parts of the bearing seat (2) respectively clamp a neck part with a thin front end and a rear end shaft tail of the main shaft (1); the neck part and the shaft tail are respectively positioned at the inner side of the bearing mounting part;

the front end and the rear end of the main shaft (1) point to a tool (3) respectively; a servo jacking mechanism (5) is arranged below the front end of the main shaft (1), and the servo jacking mechanism (5) is supported at the front end of the main shaft (1) to keep the main shaft (1) in a horizontal state;

bearing frame (2) and servo climbing mechanism (5) fixed mounting on the platform, the platform fix on press fitting machine frame (6).

2. The centrifugal pump motor bearing press-fitting machine according to claim 1, wherein the composite oil cylinder (4) comprises an inner oil cylinder and an outer oil cylinder, the inner oil cylinder is coaxially arranged in the outer oil cylinder, the inner oil cylinder extends and retracts in the outer oil cylinder, the center point (10) is arranged at the end part of the inner oil cylinder, and the tool (3) is arranged on the outer oil cylinder.