Stator winding end cover structure of rotating magnetic pole type synchronous traction generator

Abstract

The utility model relates to a rotating magnetic pole type synchronous traction generator stator winding end cover structure. At present, when a traction generator is maintained, a coupler needs to be disassembled every time after an end cover is disassembled, the process is tedious, and the matching surface of a shaft is easily damaged. The rotating magnetic pole type synchronous traction generator stator winding end cover structure comprises a traction generator body, the end portion of the traction generator body is connected with a set of prefabricated bolt rods, threaded rods are inserted into mounting holes (2) of an end cover (1), the end cover is connected with the traction generator body through nuts, and the end cover is connected with the traction generator body through bolts. The end cover is composed of a left protective cover (3) and a right protective cover (4), the left protective cover and the right protective cover are the same in structure and are connected through a butt joint plate (5), four fixing holes (6) are formed in the butt joint plate, the fixing holes are inserted into threaded columns (7), and locking nuts (8) are screwed into the threaded columns. The utility model is applied to the field of traction generators.

Description

Technical Field

[0001] The utility model relates to a stator winding end cover structure of a rotating magnetic pole type synchronous traction generator. Background Art

[0002] At present, the output shaft of the traction generator is usually connected to the equipment through a coupling, and the end of the traction generator is usually provided with an end cover for protection. In order to inspect the fan impeller of the traction motor, the internal structure of the motor, the bearings, the stator, the rotor, etc., and to inspect whether the slip ring device is strained, discolored, the state of the finger spring, and the contact state of the brush and the slip ring device, the end cover needs to be removed to observe the internal situation. When removing the end cover, the nut on the end cover needs to be unscrewed, the coupling is removed, and the end cover is lifted horizontally before the disassembly work can be completed. Due to the adhesion between the coupling and the shaft, each time the coupling is removed, it is easy to damage the matching surface of the shaft, forming grooves of varying depths or even destroying the matching surface of the shaft, causing changes in the local metallographic structure of the pump shaft, reducing the mechanical properties, and increasing the hidden dangers of equipment operation. Summary of the invention

[0003] The utility model aims to provide a stator winding end cover structure of a rotating magnetic pole type synchronous traction generator.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A rotating magnetic pole type synchronous traction generator stator winding end cover structure, which comprises: a traction generator body, the end of the traction generator body is connected with a group of prefabricated bolt rods, the threaded rods are inserted into the mounting holes of the end cover, and the end cover is fixedly connected to the traction generator through nuts,

[0006] The end cover is composed of a left protective cover and a right protective cover, and the left protective cover and the right protective cover have the same structure. The left protective cover and the right protective cover are connected by a docking plate. The docking plate has an arc-shaped structure and four fixing holes are symmetrically opened on the docking plate. The fixing holes are inserted into the threaded column, and a locking nut is screwed into the threaded column.

[0007] The stator winding end cover structure of the rotating magnetic pole type synchronous traction generator has an annular plate on the left shield and the right shield, and the threaded column is fixedly connected to the annular plate.

[0008] The stator winding end cover structure of the rotating magnetic pole type synchronous traction generator, the butt joint plate adopts a stainless steel plate structure, and the curvature of the butt joint plate is the same as the curvature of the annular plate.

[0009] Beneficial effects of the utility model:

[0010] 1. The utility model divides the end cover into two structures, namely, a left shield and a right shield, and threaded columns are respectively connected to the annular plates of the left shield and the right shield and the bearing cover, and the fixing holes on the docking plate are respectively inserted into the threaded columns and fixed by locking nuts. The end cover adopts a split structure, and when the traction generator is inspected and repaired, the end cover can be removed without disassembling the coupling.

[0011] 2. The utility model is provided with a docking plate, through which the left shield and the shield can be connected, and the annular plates and the bearing covers on the left and right shields are respectively connected with threaded columns. The docking plate is inserted into the threaded columns and then locked by a locking nut to connect the left and right shields, which saves time and effort when disassembling the end cover of the traction generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0013] Attached Figure 2 It is a schematic diagram of the structure of the right shield.

[0014] Attached Figure 3 Yes Figure 2 Left view of .

[0015] Attached Figure 4 It is a structural schematic diagram of the docking plate.

[0016] In the figure: 1, end cover, 2, mounting hole, 3, left shield, 4, right shield, 5, docking plate, 6, fixing hole, 7, threaded column, 8, locking nut, 9, annular plate, 10, protective net, 11, bearing cover, 12, rib, DETAILED DESCRIPTION Example

[0017] A rotating magnetic pole type synchronous traction generator stator winding end cover structure, which comprises: a traction generator body, the end of the traction generator body is connected to a group of prefabricated bolt rods, the threaded rods are inserted into the mounting holes 2 of the end cover 1, and the end cover is fixedly connected to the traction generator body by nuts, the end cover is composed of a left shield 3 and a right shield 4, and the left shield and the right shield have the same structure, and the end surfaces of the left shield and the right shield are in contact with each other.

[0018] The left shield and the right shield are connected by a docking plate 5, which is an arc-shaped structure and has four symmetrical fixing holes 6, which are inserted into threaded columns 7, and locking nuts 8 are screwed into the threaded columns. The four fixing holes have the same aperture, and the bottom of the threaded columns is fixed to the top and bottom of the left shield and the right shield by welding; Example

[0019] A rotating magnetic pole type synchronous traction generator stator winding end cover structure, wherein the left shield and the right shield are provided with an annular plate 9, and the threaded column is fixedly connected to the annular plate. The docking plate is made of a stainless steel plate structure, and the curvature of the docking plate is the same as the curvature of the annular plate. When overhauling the traction generator, it is only necessary to remove the locking nut on the threaded column, and then remove the docking plates above and below the end cover from the threaded column, and then remove the nut on the bearing cover, and then remove the left shield and the right shield from the prefabricated bolt rod at the end of the traction generator through the mounting holes on the left shield and the right shield in turn, so that the traction generator can be overhauled, and the coupling does not need to be removed when overhauling the traction generator.

Claims

1. A rotating magnetic pole synchronous traction generator stator winding end cover structure, comprising: A traction generator body, wherein a group of prefabricated bolt rods are connected to the end of the traction generator body, the bolt rods are inserted into the mounting holes of the end cover, and the end cover is fixedly connected to the traction generator body by nuts, wherein the end cover is composed of a left guard and a right guard, and the left guard and the right guard have the same structure, the left guard and the right guard are connected by a docking plate, the docking plate is an arc-shaped structure, and four fixing holes are symmetrically opened on the docking plate, the fixing holes are inserted into the threaded column, and a locking nut is screwed into the threaded column.

2. The stator winding end cover structure of the rotating magnetic pole synchronous traction generator according to claim 1 is characterized in that: The left shield and the right shield are provided with an annular plate, and the threaded column is fixedly connected to the annular plate.

3. The stator winding end cover structure of the rotating magnetic pole type synchronous traction generator according to claim 2 is characterized in that: The butt joint plate is made of a stainless steel plate structure, and the curvature of the butt joint plate is the same as that of the annular plate.

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