阅读说明：本技术 一种大型变频器移位装置及移位方法 (Large-scale frequency converter shifting device and shifting method ) 是由 田月根 林学明 梅玉伟 齐文国 梅玉强 王容强 姚军营 韩燕� 赵越 于 2019-08-23 设计创作，主要内容包括：本发明涉及一种大型变频器移位装置及移位方法,该大型变频器移位装置包括顶举架、车轮支架和车轮；顶举架的前端设置有两块平行的顶举架连接板,顶举架连接板上设置有第一销孔；顶举架的后端的上表面设置有螺纹孔,下表面设置有圆孔,螺纹孔安装螺栓,圆孔和螺纹孔连通,车轮支架的上端穿过圆孔,车轮支架的上表面与螺栓对顶；车轮支架和车轮连接。本发明可用于各种工况环境,节省大型起重机械的使用,特别是使用大型起重机械受限的地方更能体现其优势。设备简单,拆卸方便,易于操作。一套设备可以重复使用,为企业节省开支。(The invention relates to a large-scale frequency converter shifting device and a shifting method, wherein the large-scale frequency converter shifting device comprises a jacking frame, a wheel bracket and wheels; the front end of the jacking frame is provided with two parallel jacking frame connecting plates, and the jacking frame connecting plates are provided with first pin holes; the upper surface of the rear end of the jacking frame is provided with a threaded hole, the lower surface of the rear end of the jacking frame is provided with a round hole, a bolt is installed in the threaded hole, the round hole is communicated with the threaded hole, the upper end of the wheel support penetrates through the round hole, and the upper surface of the wheel support is opposite to the bolt; the wheel bracket is connected with the wheel. The invention can be used in various working conditions, saves the use of large hoisting machinery, and particularly can embody the advantages of the large hoisting machinery in the limited places. The equipment is simple, the disassembly is convenient, and the operation is easy. One set of equipment can be reused, so that the expenditure is saved for enterprises.)

1. A large-scale frequency converter shifting device is characterized by comprising a jacking frame (3), a wheel bracket (5) and wheels (7);

the front end of the jacking frame (3) is provided with two parallel jacking frame connecting plates (1), and the jacking frame connecting plates (1) are provided with first pin holes;

the upper surface of the rear end of the lifting frame (3) is provided with a threaded hole, the lower surface of the lifting frame is provided with a round hole, a bolt (4) is installed in the threaded hole, the round hole is communicated with the threaded hole, the upper end of the wheel support (5) penetrates through the round hole, and the upper surface of the wheel support is abutted to the bolt (4);

the wheel bracket (5) is connected with a wheel (7).

2. The large-scale frequency converter shifting device according to claim 1, further comprising a frequency converter connecting plate (10), wherein a second pin hole corresponding to the first pin hole is also formed in the frequency converter connecting plate (10), the frequency converter connecting plate (10) is welded to the bottom of the frequency converter, and the pin hole in the jacking frame connecting plate (1) is connected with the frequency converter connecting plate on the frequency converter through the mandrel (2).

3. A large-scale frequency converter displacement device according to claim 2, characterized in that the distance between the two jacking frame connecting plates (1) is larger than the thickness of the frequency converter connecting plates, and the difference between the distance and the thickness is not less than 0.5 mm.

4. A large transducer displacement device according to claim 1, characterized in that the wheel carrier (5) is integrated with the wheel (7) by means of a wheel axle (6).

5. The large-scale frequency converter shifting device according to claim 1, wherein the fit clearance range of the jacking frame (3) and the wheel bracket (5) is 0.05mm-0.1 mm.

6. A large-scale frequency converter shifting method is applied to the large-scale frequency converter shifting device according to any one of claims 1 to 5, and is characterized by comprising the following steps:

welding a plurality of frequency converter connecting plates at the bottom of the large frequency converter;

each frequency converter connecting plate is clamped between the jacking frame connecting plates of one jacking frame, and a mandrel penetrates through the first pin hole and the second pin hole, so that the effect of connecting the large frequency converter and the jacking frame is achieved;

when the large-scale frequency converter needs to move, the bolt is screwed clockwise, the large-scale frequency converter is lifted, and the large-scale frequency converter is pushed to a specified position;

and (4) screwing the bolt anticlockwise, driving the large frequency converter to move downwards by the jacking frame until the large frequency converter falls to the ground, and finishing the movement of the large frequency converter.

Technical Field

The invention relates to the field of frequency converters, in particular to a large-scale frequency converter shifting device and a shifting method.

Background

The high-power frequency converter is heavy in self weight, and the space is limited when the high-power frequency converter is installed, large-scale hoisting machinery is difficult to deploy, and the high-power frequency converter is not moved when being lifted manually, so that the high-power frequency converter is difficult to place. Therefore, it is urgently needed to develop a shifting device to solve the carrying problem of the high-power frequency converter.

Disclosure of Invention

The present invention aims to solve the above-mentioned disadvantages of the prior art.

In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a large-scale frequency converter shifting apparatus, including a lifting frame, a wheel support, and wheels; the front end of the jacking frame is provided with two parallel jacking frame connecting plates, and the jacking frame connecting plates are provided with first pin holes; the upper surface of the rear end of the jacking frame is provided with a threaded hole, the lower surface of the rear end of the jacking frame is provided with a round hole, a bolt is installed in the threaded hole, the round hole is communicated with the threaded hole, the upper end of the wheel support penetrates through the round hole, and the upper surface of the wheel support is opposite to the bolt; the wheel bracket is connected with the wheel.

In a possible implementation mode, the lifting frame further comprises a frequency converter connecting plate, a second pin hole corresponding to the first pin hole is also formed in the frequency converter connecting plate, the frequency converter connecting plate is welded at the bottom of the frequency converter, and the pin hole in the lifting frame connecting plate is connected with the frequency converter connecting plate on the frequency converter through a core shaft.

In a possible further embodiment, the distance between the two jacking frame connecting plates is larger than the thickness of the frequency converter connecting plate, and the difference between the distance and the thickness is not less than 0.5 mm.

In one possible embodiment, the wheel carrier is connected to the wheel by a wheel axle.

In one possible embodiment, the fit clearance of the lifting frame and the wheel support is in the range of 0.05mm to 0.1 mm.

In a second aspect, an embodiment of the present invention provides a large-scale frequency converter shifting method, which is applied to the large-scale frequency converter shifting apparatus in the first aspect, and includes the following steps: welding a plurality of frequency converter connecting plates at the bottom of the large frequency converter; each frequency converter connecting plate is clamped between the jacking frame connecting plates of one jacking frame, and a mandrel penetrates through the first pin hole and the second pin hole, so that the effect of connecting the large frequency converter and the jacking frame is achieved; when the large-scale frequency converter needs to move, the bolt is screwed clockwise, the large-scale frequency converter is lifted, and the large-scale frequency converter is pushed to a specified position; and (4) screwing the bolt anticlockwise, driving the large frequency converter to move downwards by the jacking frame until the large frequency converter falls to the ground, and finishing the movement of the large frequency converter.

The invention has the beneficial effects that:

1. the lifting device can be used in various working conditions, saves the use of large-scale hoisting machinery, and particularly can embody the advantages of the large-scale hoisting machinery in limited places.

2. The equipment is simple, the disassembly is convenient, and the operation is easy. One set of equipment can be reused, so that the expenditure is saved for enterprises.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are 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 to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a cross-sectional view of a large-scale frequency converter shifting apparatus according to an embodiment of the present invention;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a view from the direction B of FIG. 1;

fig. 4 is a schematic view of an application scenario of a large-scale frequency converter shifting apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of another perspective of FIG. 4;

FIG. 6 is an enlarged view of a portion I of FIG. 4;

fig. 7 is a schematic structural diagram of a jacking frame according to an embodiment of the present invention;

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a cross-sectional view of FIG. 7;

FIG. 10 is a left side view of FIG. 7;

FIG. 11 is a side view of a wheel carrier according to an embodiment of the present invention;

FIG. 12 is a cross-sectional view of a wheel carrier according to an embodiment of the present invention;

FIG. 13 is a top view of a wheel carrier according to an embodiment of the present invention;

description of reference numerals:

the method comprises the following steps of 1-jacking frame connecting plate, 2-core shaft, 3-jacking frame, 31-threaded hole, 32-round hole, 4-bolt, 5-wheel bracket, 6-wheel shaft, 7-wheel, 8-large frequency converter shifting device, 9-large frequency converter and 10-frequency converter connecting plate.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 13, an embodiment of the present invention provides a large-scale frequency converter shifting apparatus, including a lifting frame 3, a wheel support 5, and wheels 7.

The front end of the jacking frame 3 is provided with two parallel jacking frame connecting plates 1, and the jacking frame connecting plates 1 are provided with first pin holes.

The upper surface of the rear end of the jacking frame 3 is provided with a threaded hole, the lower surface is provided with a round hole, a threaded hole mounting bolt 4 is arranged, the round hole is communicated with the threaded hole, the round hole is penetrated through the upper end of the wheel support 5, the upper surface of the wheel support is butted with the bolt 4, and the jacking frame 3 can freely move up and down on the wheel support 5.

The wheel carrier 5 is connected with a wheel 7.

In one example, the frequency converter connecting plate 10 is further included, a second pin hole corresponding to the first pin hole is also formed in the frequency converter connecting plate 10, the frequency converter connecting plate 10 is welded at the bottom of the frequency converter, and the pin hole in the jacking frame connecting plate 1 is connected with the frequency converter connecting plate on the frequency converter through the mandrel 2.

In a more specific example, the distance between the two jack connecting plates 1 is larger than the thickness of the frequency converter connecting plate, and the difference between the distance and the thickness is not less than 0.5 mm.

In one example, the wheel carrier 5 is integrally connected to the wheel 7 by a wheel axle 6.

In one example, the fit clearance between the jacking frame 3 and the wheel bracket 5 is in the range of 0.05-0.1 mm.

The embodiment of the invention also provides a large-scale frequency converter shifting method, which is applied to the large-scale frequency converter shifting device and comprises the following steps;

and step S1, welding a plurality of frequency converter connecting plates at the bottom of the large frequency converter.

And step S2, each frequency converter connecting plate is clamped between the jacking frame connecting plates of one jacking frame, and the core shaft penetrates through the first pin hole and the second pin hole to achieve the effect of connecting the large frequency converter and the jacking frame.

And step S3, when the large-scale frequency converter needs to be moved, the bolt is screwed clockwise, the large-scale frequency converter is lifted, and the large-scale frequency converter is pushed to a specified position.

And step S4, screwing the bolt anticlockwise, driving the large frequency converter to move downwards by the jacking frame until the large frequency converter falls to the ground, and finishing the movement of the large frequency converter.

The working principle is as follows: in general, as shown in fig. 4-6, 4 shifting devices 8 are required for one large-scale frequency converter 9, 4 frequency converter connecting plates 10 are welded at the lower end of the large-scale frequency converter 9, and the 4 large-scale frequency converter shifting devices 8 are connected with the 4 frequency converter connecting plates 10 into a whole through a mandrel 2; screwing the bolt 4 to jack the frame 3 just like a big nut moving on the bolt 4, because the jack frame 3 is connected with the large-scale frequency converter 9 into a whole through the mandrel 2, the jack frame 3 can drive the large-scale frequency converter 9 to move up and down.

When the large-scale frequency converter 9 needs to move, the bolt 4 is screwed clockwise, and the large-scale frequency converter 9 is lifted; the 4 wheels 7 bear the weight of the whole large-scale frequency converter 9, and the large-scale frequency converter can be pushed to a specified position. After the large-scale frequency converter 9 is pushed to the designated position, the bolt 4 is screwed anticlockwise, the jacking frame 3 drives the large-scale frequency converter 9 to move downwards until the large-scale frequency converter falls to the ground, at the moment, the 4 wheels 7 are not stressed, and the large-scale frequency converter 9 is moved. Finally, the mandrel 2 is pulled out of the connection plate 1, and the displacement device is removed for the displacement of another frequency converter.

The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.