CN110739811B - Method for determining direct current traction motor stator lead and connection layout and length thereof - Google Patents
Method for determining direct current traction motor stator lead and connection layout and length thereof Download PDFInfo
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- CN110739811B CN110739811B CN201910910349.1A CN201910910349A CN110739811B CN 110739811 B CN110739811 B CN 110739811B CN 201910910349 A CN201910910349 A CN 201910910349A CN 110739811 B CN110739811 B CN 110739811B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0056—Manufacturing winding connections
- H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals
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- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a method for determining the lead and connection layout and the length of a stator of a direct current traction motor, which solves the problem of long trial-manufacture period in the prior art. The method adopts NX to carry out three-dimensional modeling on a stator base, a brush holder and each winding and assemble the stator base, the brush holder and each winding into a body so as to determine the positions of each winding and a brush holder joint in a three-dimensional space; copying geometric information and spatial positions of joints in stator assembly to each online part to be designed by using a WAVE inter-component correlation modeling technology; the leading and connecting joints are connected by spline curves; adjusting the position of each control point of the curve in the three-dimensional space in the stator base to enable the curve to be in smooth transition, arranging a space wiring mode by adhering the wiring on the inner surface of the base, and determining the position of a line connection common wire clamp; the length of the curve is measured in NX and the length of the joint is added, so that the lengths of the lead and the connecting line and the related resistance can be determined. The invention can effectively realize the rapid design of the stator connection of the direct-current traction motor, reduce the rework cost and shorten the trial-manufacture period.
Description
Technical Field
The invention relates to a method for determining the lead and connection layout and the length of a stator of a direct current traction motor.
Background
The large and medium-sized direct current traction motor stators have complicated internal connection lines and generally comprise inter-pole connection lines (main poles, auxiliary poles and compensation), inter-brush frame connection lines, brush frame-auxiliary pole connection lines, brush frame-compensation connection lines, main pole outgoing lines, auxiliary pole outgoing lines or compensation outgoing lines.
Because the internal space of the stator is irregular, the routing of leading wires and connecting wires of the stator belongs to a 3D curve, the leading wire and the connecting wire length cannot be accurately calculated by adopting CAD two-dimensional drawing in the traditional technology, and the leading wire and the connecting wire length need to be determined by actual measurement after trial production of a sample machine.
The wire connection joint is pressed by an oil press, which easily causes wire waste and cycle delay; the resistance value of each winding of the stator cannot be accurately calculated before the type test; the positions of the lead and the connecting space routing and the wire clamp are not intuitive, and errors are easy to occur; it is difficult to estimate the on-site wiring and binding operation space.
Therefore, it is a technical problem to be solved by those skilled in the art to design a method for determining the layout and length of the lead and the connection of the stator of the dc traction motor to solve at least some of the above technical problems, and to achieve a fast design of the stator connection, reduce the rework cost, and shorten the trial-manufacturing period.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for determining the stator lead and the connecting line layout of the direct current traction motor and the length of the stator lead and the connecting line layout of the direct current traction motor is provided, and the problem that the length of the direct current traction motor stator lead and the connecting line cannot be accurately calculated in the prior art, so that the length of a sample machine needs to be determined through actual measurement after trial production, and the trial production period is prolonged is solved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the method for determining the stator lead and the connection layout of the direct current traction motor and the length of the stator lead and the connection layout comprises the following steps of:
step 1, carrying out three-dimensional modeling on a stator base, a brush holder and each winding by adopting NX three-dimensional software, assembling the three-dimensional modeling into a stator assembly, and determining the positions of each winding and a brush holder joint in a three-dimensional space;
step 2, copying geometric information and spatial positions of joints in stator assembly to all line parts to be designed by using a related modeling technology among the What-if Alternative Value Engineering components, namely determining the joint positions of all leading and line parts;
step 3, adopting space art spline curve connection between the leading and connecting joints, and sweeping in a 'pipeline' mode;
step 4, adjusting the positions of control points of the spline curves in the three-dimensional space in the stator base to enable the spline curves to be in smooth transition and to be wired along the inner surface of the base, arranging a space wiring mode according to the control points, and determining the positions of the common wire clamps of the connected wires;
and 5, measuring the length of the spline curve in NX three-dimensional software, adding the length of the joint, namely accurately determining the lengths of the leading wire and the connecting wire, and calculating the related resistance according to the accurate lengths of the leading wire and the connecting wire.
Further, in step 3, the diameter of the conduit is set to the outer diameter of the selected cable gauge as the sweep is performed in a "conduit" manner.
Further, in the step 5, the related resistance is calculated according to the accurate lead and connection line length multiplied by the line resistance ratio of the connection line.
Compared with the prior art, the invention has the following beneficial effects:
the invention has wonderful conception, scientific and reasonable design and convenient and simple operation flow, can effectively realize the rapid design of the stator connecting line of the direct current traction motor, reduces the rework cost and shortens the trial-manufacture period. The method can accurately determine the length of the direct-current traction motor stator connecting line before the prototype is manufactured, and can visually inspect whether the connecting line position, the space wiring and the operation space are reasonable or not, thereby saving the manufacturing cost and shortening the manufacturing period.
Drawings
Fig. 1 is a schematic layout diagram of the wiring inside the stator of the dc traction motor.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
The invention provides a method for determining direct current traction motor stator lead and connection layout and length thereof, which comprises the following steps:
step 1, adopting NX three-dimensional software to perform three-dimensional modeling on a stator base, a brush holder and each winding, assembling the stator base, the brush holder and each winding into a stator assembly, and determining the positions of each winding and a brush holder joint in a three-dimensional space.
And 2, copying geometric information and spatial positions of joints in stator assembly to each line part to be designed by using a WAVE (What-if Alternative Value Engineering) inter-component correlation modeling technology, namely determining the joint positions of each leading line part and each line part.
And 3, connecting the leading and connecting joints by adopting a space art spline curve, and sweeping in a pipeline mode, wherein the diameter of the pipeline is set to be the outer diameter of the selected cable specification.
And 4, adjusting the positions of the control points of the spline curves in the three-dimensional space in the stator base to enable the spline curves to be in smooth transition and to be wired against the inner surface of the base, arranging a space wiring mode and determining the positions of the connected public wire clamps.
And 5, measuring the length of the spline curve in NX three-dimensional software, adding the length of the joint, namely accurately determining the lengths of the leading wires and the connecting wires, and calculating the related resistance according to the accurate lengths of the leading wires and the connecting wires multiplied by the wire resistance rate of the connecting wires.
As shown in figure 1, the method is used for the design of stator connecting lines of CDZD108 and ZD107 direct current traction motors, and the error of the length of the outgoing lines of the leading and connecting lines is verified to be not more than 50mm, which is mainly caused by that the direct current motor bases are mostly cast bases, and the internal surfaces are slightly different, thereby showing that the method is reliable.
The invention can effectively realize the rapid design of stator connection lines, reduce the rework cost and shorten the trial-manufacture period, has strong practicability and is suitable for being widely popularized and applied in the technical field.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (2)
1. The method for determining the stator lead and the wire connection layout and the length of the direct current traction motor is characterized by comprising the following steps of:
step 1, carrying out three-dimensional modeling on a stator base, a brush holder and each winding by adopting NX three-dimensional software, assembling the three-dimensional modeling into a stator assembly, and determining the positions of each winding and a brush holder joint in a three-dimensional space;
step 2, copying geometric information and spatial positions of joints in stator assembly to all line parts to be designed by using a related modeling technology among the What-if Alternative Value Engineering components, namely determining the joint positions of all leading and line parts;
step 3, connecting the leading and connecting joints by adopting a space art spline curve, and sweeping in a pipeline mode, wherein when the pipeline mode is used for sweeping, the diameter of the pipeline is set to be the outer diameter of the selected cable specification;
step 4, adjusting the positions of control points of the spline curves in the three-dimensional space in the stator base to enable the spline curves to be in smooth transition and to be wired along the inner surface of the base, arranging a space wiring mode according to the control points, and determining the positions of the common wire clamps of the connected wires;
and 5, measuring the length of the spline curve in NX three-dimensional software, adding the length of the joint, namely accurately determining the lengths of the leading wire and the connecting wire, and calculating the related resistance according to the accurate lengths of the leading wire and the connecting wire.
2. The method for determining the layout and length of the stator leads and the connecting wires of the direct current traction motor according to claim 1, wherein in the step 5, the relevant resistance is calculated according to the accurate length of the leads and the connecting wires multiplied by the wire resistance ratio of the connecting wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910910349.1A CN110739811B (en) | 2019-09-25 | 2019-09-25 | Method for determining direct current traction motor stator lead and connection layout and length thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910910349.1A CN110739811B (en) | 2019-09-25 | 2019-09-25 | Method for determining direct current traction motor stator lead and connection layout and length thereof |
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| Publication Number | Publication Date |
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| CN110739811A CN110739811A (en) | 2020-01-31 |
| CN110739811B true CN110739811B (en) | 2020-12-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103577654A (en) * | 2013-11-21 | 2014-02-12 | 上海电气集团股份有限公司 | Finite element precise modeling method for stator bar of large turbine generator |
| CN204706976U (en) * | 2015-06-30 | 2015-10-14 | 成都南车电机有限公司 | Optimizing structure of a kind of AC traction motor stator lead-out wire |
| CN105590002A (en) * | 2015-12-31 | 2016-05-18 | 北京理工大学 | Automatic layout method and device of branch cable |
| CN106202624A (en) * | 2016-06-27 | 2016-12-07 | 武汉开目信息技术有限责任公司 | The laying method of electric wire in a kind of three-dimensional assembly simulation |
| CN106919773A (en) * | 2017-04-25 | 2017-07-04 | 哈尔滨理工大学 | A kind of numerical computations APP for big stator winding conductor bars in electrical machines end model |
-
2019
- 2019-09-25 CN CN201910910349.1A patent/CN110739811B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103577654A (en) * | 2013-11-21 | 2014-02-12 | 上海电气集团股份有限公司 | Finite element precise modeling method for stator bar of large turbine generator |
| CN204706976U (en) * | 2015-06-30 | 2015-10-14 | 成都南车电机有限公司 | Optimizing structure of a kind of AC traction motor stator lead-out wire |
| CN105590002A (en) * | 2015-12-31 | 2016-05-18 | 北京理工大学 | Automatic layout method and device of branch cable |
| CN106202624A (en) * | 2016-06-27 | 2016-12-07 | 武汉开目信息技术有限责任公司 | The laying method of electric wire in a kind of three-dimensional assembly simulation |
| CN106919773A (en) * | 2017-04-25 | 2017-07-04 | 哈尔滨理工大学 | A kind of numerical computations APP for big stator winding conductor bars in electrical machines end model |
Non-Patent Citations (1)
| Title |
|---|
| 基于NX 的水轮发电机定子线棒参数化建模方法研究;汪小芳;《大电机技术》;20170115;第24-28页 * |
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