CN210944492U

CN210944492U - Lifting tool and lifting assembly

Info

Publication number: CN210944492U
Application number: CN201921861511.7U
Authority: CN
Inventors: 张伟; 刘玉斌; 郝木兰
Original assignee: Siemens Electrical Drives Ltd
Current assignee: Siemens Electrical Drives Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-07
Anticipated expiration: 2029-10-31

Abstract

The utility model provides a hoisting tool, this hoisting tool are cylindricly on the whole, and hoisting tool comprises two semi-cylindrical sections of symmetry each other, and semi-cylindrical section includes: two protruding sections at both axial sides of the semi-cylindrical section; and the arc section is positioned between the two protruding sections, a first hoisting hole is formed in the arc section, a step part is formed at the tail end of each protruding section, the step part is provided with a first step surface extending along the radial direction of the hoisting tool and a second step surface perpendicular to the first step surface, and an assembly through hole is formed in the first step surface. Furthermore, the utility model also provides an adopt above-mentioned lifting device's hoist and mount subassembly.

Description

Lifting tool and lifting assembly

Technical Field

The utility model relates to a motor machining field especially relates to a lifting device and adopt this kind of lifting device's hoist and mount subassembly.

Background

When the glue pouring operation is carried out on the winding rotor in the motor, the winding rotor needs to be lifted by the lifting device. The operation includes: one end of a rotating shaft of the winding rotor is fixed on the hoisting device through a bolt, and then the winding rotor is hoisted integrally. Specifically, when the existing winding rotor is hoisted, the inner side cylinders of the two hoisting tools are required to be inserted into corresponding hoisting holes in the rotating shaft, and then the two hoisting tools are locked by bolts and nuts.

However, current lifting devices are only suitable for wound rotors with a journal having an outer diameter in a particular size. For some special outer diameter sizes, such as rotating shafts with the outer diameter larger than 100mm, which are suitable for slip ring motors, the hoisting device in the prior art cannot be directly suitable, and a supplier needs to be found to customize and authenticate a new hoisting tool. This process of subscription and authentication is time consuming and costly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lifting device of special design to and adopt this kind of lifting device's hoist and mount subassembly. The hoisting tool is a component with lower cost, and can fully utilize the existing hoisting device to meet the hoisting requirements of rotors with different sizes or specific sizes.

According to the utility model discloses an aspect provides a hoisting tool, hoisting tool is cylindric on the whole, hoisting tool comprises two semi-cylindrical sections of symmetry each other, the semi-cylindrical section of thick bamboo includes:

two projecting sections at both axial sides of the semi-cylindrical section; and

an arcuate segment located between the two projecting segments,

wherein the arc-shaped section is provided with a first hoisting hole,

the tail end of the protruding section is provided with a step part, the step part is provided with a first step surface extending along the radial direction of the hoisting tool and a second step surface perpendicular to the first step surface, and the first step surface is provided with an assembling through hole.

According to the utility model discloses an embodiment, in foretell lifting device, first hole for hoist is located the geometric center of segmental arc, so that when two semi-cylindrical sections assemble into lifting device first hole for hoist on two segmental arcs is just right each other.

According to the utility model discloses an embodiment, in foretell lifting device, the external diameter of outstanding section is greater than the external diameter of segmental arc.

According to an embodiment of the present invention, in the above hoisting tool, the outer diameter of the arc-shaped section is greater than or equal to 100mm, and is less than or equal to 140 mm.

According to an embodiment of the present invention, in the above hoisting tool, the two semicylindrical sections are aligned with each other at the time of splicing, and the two semicylindrical sections are fixed together via a fastener penetrating through the two assembling through holes on the two semicylindrical sections aligned with each other.

According to an embodiment of the present invention, in the above-mentioned lifting tool, the fitting through-hole is a threaded hole, and the fastener is a screw.

According to another aspect of the present invention, there is provided a lifting assembly, characterized in that it comprises a shaft and a lifting tool as discussed above, said shaft comprising a shoulder and a journal, said shoulder having an outer diameter larger than said journal,

the hoisting tool is sleeved on the shaft neck of the rotating shaft, and one end of the hoisting tool is abutted to the shaft neck of the rotating shaft.

According to the utility model discloses an embodiment, in foretell hoist and mount subassembly, the second hole for hoist has been seted up in the pivot, just first hole for hoist and mount on the lifting device and second hole for hoist aim at each other.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

figures 1 and 2 show cross-sectional views from different angles of one embodiment of a lifting tool according to the invention.

Figure 3 shows an embodiment of the assembled state of the lifting tool described above.

Figure 4 shows a schematic view of a semi-cylindrical section of the hoisting tool described above.

Fig. 5 shows a sectional view of the assembled state shown in fig. 3.

Description of reference numerals:

10 semicylindrical segment

11 protruding section

12 arc segment

13 first lifting hole

14 first step surface

15 second step surface

16 fitting through hole

20 rotating shaft

21 shaft shoulder

22 journal

Detailed Description

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.

The basic principles and preferred embodiments of the present invention are discussed in more detail below with reference to the accompanying drawings. Fig. 1 to 5 show an embodiment of a lifting tool according to the invention. In the embodiment shown in the attached drawings, the hoisting tool of the present invention is cylindrical as a whole. The lifting tool is formed of two semi-cylindrical sections 10 which are symmetrical to each other.

As shown more clearly in fig. 1 and 4, the semi-cylindrical section 10 mainly comprises two projecting sections 11 and an arc-shaped section 12.

The two projecting sections 11 have an outer diameter larger than the outer diameter of the arc-shaped section 12. Two protruding sections 11 are located on both axial sides of the semi-cylindrical section 10, respectively, as shown in fig. 2. The tip of each projecting section 11 is formed with a step portion having a first step face 14 extending in the radial direction of the hoist tool and a second step face 15 perpendicular to the first step face 14, referring to fig. 1. As shown in fig. 2, the first step surface 14 is provided with a fitting through-hole 16. The stepped portion facilitates the insertion of a fastener such as a screw and the like at the fitting through-hole 16 by means of a bolt at the time of fitting.

The arc-shaped section 12 is located between the two protruding sections 11, and the arc-shaped section 12 is provided with a first hoisting hole 13. When the traditional hoisting device is used for hoisting, the inner side columns of the two hoisting tools can be inserted into the first hoisting hole 13, and then the two hoisting tools are locked by bolts and nuts.

Preferably, in the preferred embodiment shown in fig. 2, the first lifting hole 13 is located at the geometric center of the arc-shaped section 12, so that the first lifting holes 13 of the two arc-shaped sections 12 are directly opposite to each other when the two semi-cylindrical sections 10 are assembled into the lifting tool.

Further, in a preferred embodiment, the outer diameter of the arcuate segment 12 is in the range of greater than or equal to 100mm and less than or equal to 140 mm. In other words, by making the outer diameter of the arc-shaped section 12 conform to the size of the existing hoisting device, the existing hoisting device can be used to complete hoisting of the rotating shaft of the slip ring motor with inconsistent journal (for example, the journal is smaller than the requirement of the existing hoisting device).

Based on the above-described structure, when the two semicylindrical segments 10 of the hoist are spliced, the fitting through-holes 16 of both sides of the two semicylindrical segments 10 are aligned with each other, and the two semicylindrical segments 10 are fixed together via the fasteners penetrating the two fitting through-holes 16 of the two semicylindrical segments 10 aligned with each other. In one embodiment, the assembly through holes 16 are threaded holes and the fasteners are screws.

Turning to fig. 3 to 5, in the assembled state, the lifting tool and the shaft discussed above together constitute the lifting assembly of the present invention.

As shown in fig. 5, the shaft 20 includes a shoulder 21 and a journal 22, wherein the shoulder 21 has an outer diameter larger than that of the journal 22. Thus, the hoisting tool is sleeved on the shaft neck 22 of the rotating shaft 20, and one end of the hoisting tool is abutted against the shaft neck 22 of the rotating shaft 20. So, when hoist and mount, the utility model discloses a hoist and mount instrument can push up on the shaft shoulder 21 of pivot 20, realizes the hoist and mount of wire winding rotor.

Preferably, the rotating shaft 20 is provided with a second lifting hole (not shown), and the first lifting hole 13 and the second lifting hole of the lifting tool are aligned with each other. Therefore, the inner side of the cylinder of the existing hoisting device can be facilitated to sequentially pass through the first hoisting hole in the hoisting tool and the second hoisting hole in the rotating shaft, and the cylinder is more firmly fixed.

To sum up, the utility model provides an auxiliary lifting device. By utilizing the hoisting tool, the application range of the existing hoisting device can be expanded, so that the existing hoisting device can be applied to hoisting the slip ring motor with a small journal, and the hoisting of the non-standard shaft is realized at lower cost. Therefore, the utility model provides a more simple and convenient, efficient solution has better application prospect.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. Hoisting tool, characterized in that, hoisting tool is cylindric on the whole, hoisting tool comprises two semicylindrical sections (10) of symmetry each other, semicylindrical section includes:

two projecting sections (11) at both axial sides of the semi-cylindrical section; and

an arc-shaped section (12) located between the two protruding sections,

wherein the arc-shaped section is provided with a first hoisting hole (13),

the tail end of the protruding section is provided with a step part, the step part is provided with a first step surface (14) extending along the radial direction of the hoisting tool and a second step surface (15) perpendicular to the first step surface, and an assembling through hole (16) is formed in the first step surface.

2. A lifting tool according to claim 1, characterized in that the first lifting hole (13) is located in the geometric centre of the curved section (12) so that the first lifting holes in the two curved sections are facing each other when the two semi-cylindrical sections (10) are assembled into the lifting tool.

3. Hoisting tool according to claim 1, characterized in that the outer diameter of the protruding section (11) is larger than the outer diameter of the arcuate section (12).

4. The lifting tool according to claim 1, characterized in that the outer diameter of the curved section (12) is greater than or equal to 100mm and less than or equal to 140 mm.

5. The lifting tool according to claim 1, characterized in that the two semi-cylindrical sections (10) are aligned with each other at the time of splicing, and the fitting through holes (16) at both sides of the two semi-cylindrical sections are aligned with each other and fixed together via a fastener penetrating the two fitting through holes of the two semi-cylindrical sections aligned with each other.

6. Hoisting tool according to claim 5, characterized in that the fitting through hole (16) is a threaded hole and the fastening element is a screw.

7. Hoisting assembly, characterized in that it comprises a shaft (20) and a hoisting tool according to any one of claims 1-6, the shaft comprising a shoulder (21) and a journal (22), the outer diameter of the shoulder being larger than the outer diameter of the journal,

8. The hoist assembly of claim 7, wherein the shaft (20) has a second hoist hole formed therein, and the first hoist hole and the second hoist hole of the hoisting tool are aligned with each other.