CN107979238B

CN107979238B - A new type of exciter rotor

Info

Publication number: CN107979238B
Application number: CN201711432232.4A
Authority: CN
Inventors: 杨家国; 舒鹏
Original assignee: Jiangxi Tsinghua Taihao Sanbo Motor Co Ltd
Current assignee: Jiangxi Tsinghua Taihao Sanbo Motor Co Ltd
Priority date: 2017-12-26
Filing date: 2017-12-26
Publication date: 2024-12-27
Anticipated expiration: 2037-12-26
Also published as: CN107979238A

Abstract

The invention discloses a novel exciter rotor, which is provided with a rotary rectifier mounting ring, a lead wire protecting sleeve, a balance weight mounting and adjusting dovetail groove and a bridge wire fixing frame, wherein the rotary rectifier mounting ring, the balance weight mounting and adjusting dovetail groove and a rotor bracket are integrated. And (3) mounting and coating fastening glue for solidifying the rotary rectifier, the lead wire protective sleeve, the bridge wire fixing frame, the balance weight and the like. The exciter rotor fully considers factors in multiple aspects such as component assembly, rotor dynamic balance correction, bridge wire fixation and the like, fully utilizes limited space, ensures that devices are compactly discharged without mutual interference, and ensures that the space volume of the exciter rotor is miniaturized. The invention has the technical effects of (1) directly and reliably fixing and installing the rotary rectifier and the balance weight, (2) radially arranging the circumference of the rotary rectifier, adjusting the circumference of the balance weight by 360 degrees, improving the dynamic balance checking precision, (3) reliably protecting the lead wire and the bridge wire, being difficult to loosen and damage, and (4) having small volume.

Description

Novel exciter rotor

Technical Field

The invention relates to a motor exciter rotor, in particular to a high-speed motor exciter rotor.

Background

The exciter rotor of the motor mainly provides an excitation source for a main machine, and the exciter rotor of the general motor consists of a winding iron core, a lead wire, a rotary rectifier, a fastening bolt, a rotor bracket and the like. The rotary rectifier is directly fixed on the rotor bracket through bolts, a dynamic balance correction device is not needed, and the lead wire and the bridge wire are not reliably fixed. The method has the following defects that (1) an exciter rotor is used as a rotating part of a motor, parts on the exciter rotor need to be reliably fixed, a rotating rectifier is directly fixed on a rotor support through bolts, when the rotating speed of a generator rises, the generator is easy to loosen, potential safety hazards exist, and (2) a dynamic balance correction device is not needed, and the unbalance of the motor is large. When the rotation speed is increased, the larger the vibration and the higher the noise caused by the unbalance amount are, and the requirements of the motor on the vibration and the noise cannot be met. The unbalance amount is required to be gradually reduced along with the increase of the rotating speed, the high-precision unbalance amount is required to be more in balance weight fixing space and more reasonable layout, and (3) the lead wire and the bridge wire are not reliably fixed, so that the connector is easy to loose and the lead wire is easy to damage when the motor rotates at a high speed. Therefore, a new exciter rotor needs to be developed, and the requirements of installation of components in high-speed operation, dynamic balance high-precision check and the like are met.

Disclosure of Invention

The invention aims to provide the exciter rotor which fully considers the factors such as the assembly of a rotary rectifier, the correction and dynamic balance of the rotor, the fixation of a lead wire and a bridge wire, and the like, fully utilizes the limited space, ensures that devices are compactly discharged without mutual interference, and simultaneously ensures the reliable installation of the components. The space volume of the exciter rotor is miniaturized.

The novel exciter rotor is characterized in that the rotary rectifier is directly arranged on a rotor mounting hole on a rotary rectifier mounting ring through nuts, is fastened by coating fastening glue and is uniformly distributed in the radial direction of the circumference, the winding iron core is pressed on the rotor support, the balance weight is fastened in a balance weight mounting and adjusting dovetail groove through screws, after the position is fixed, the fastening glue is coated for solidification and looseness prevention, the rotary rectifier mounting ring is simultaneously provided with the lead wire protective sleeve mounting holes, lead wires between the rotary rectifiers and the winding rotor are fixed on the lead wire protective sleeve mounting holes through the lead wire iron core protective sleeve, and are coated with the fastening glue for solidification and looseness, and the bridge wire is arranged on the bridge wire mounting hole on the rotor support through the bridge wire fixing frame through bolts and nuts, and is coated with the fastening glue for solidification and looseness. The balance weight is adjustable in 360-degree range of circumference, and the specific position and the number of the balance weight are adjusted according to the unbalance amount.

The working principle of the invention is that components are directly fixed on a rotor bracket, the use of fasteners is reduced as much as possible, the components are arranged according to the circumferential radial direction, the non-uniformity of the quality is reduced, the unbalance is further reduced, and the components are mounted for anti-loosening treatment.

The invention has the technical effects that the exciter rotor can calibrate dynamic balance, the dynamic balance calibration precision of the whole motor is improved, the installation positions of the rotary rectifier and the balance weight are directly integrated with the rotor bracket, the occupation space of components is reduced, the lead wire and the bridge wire are reliably fixed through the wire passing sleeve and the fixed bracket, and the installation of the fastener is subjected to anti-loosening treatment.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a right side view of the present invention.

Fig. 3 is a front view of the lead wire protective sleeve of the present invention.

Fig. 4 is a right side view of the lead wire protective sleeve of the present invention.

Fig. 5 is a front view of the bridged wire holder of the present invention.

Fig. 6 is a right side view of the bridged wire holder of the present invention.

Fig. 7 is a front view of the present rotor support using the novel rotor support.

Fig. 8 is a front view of the present rotor support using the novel rotor support.

In the figure, 1, a rotary rectifier, 2, a stator core with windings, 3, a balance weight, 4, a lead wire, 5, a lead wire protective sleeve, 6, a bridge wire fixing frame, 7 bridge wires, 8, a rotor bracket, 9, a lead wire protective sleeve mounting hole, 10a rotary rectifier mounting ring, 11 a balance weight mounting and adjusting dovetail groove, 12, a bridge wire fixing frame mounting hole and 13 a rotary rectifier mounting hole.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings, but the present embodiments are not intended to limit the invention.

As shown in fig. 1 to 4, the present invention is implemented by the fact that, as shown in fig. 1, the exciter rotor is composed of a rotary rectifier 1, a winding core 2, a balance weight 3, a lead wire 4, a lead wire protection sleeve 5, a bridge wire fixing frame 6, a bridge wire 7, a rotor bracket 8 and a fastening bolt. The rotary rectifier 1 is directly arranged on a rotator mounting hole 13 on a rotary rectifier mounting ring 10 by nuts and is fastened by a fastening adhesive, the rotary rectifier is uniformly distributed in the circumferential radial direction, the winding iron core 2 is pressed on a rotor support 8, the balance weight 3 is fastened in a balance weight mounting and adjusting dovetail groove 11 by bolts, the fixing position is fixed, the fixing adhesive is coated for anti-loosening, the specific position and the number of the balance weights are adjustable within the 360-degree range of the circumference, the number of the specific position and the number of the balance weights are adjusted according to the unbalance, the rotary rectifier mounting ring 10 is simultaneously provided with a lead wire protective sleeve mounting hole 9, lead wires 4 between the rotary rectifier 1 and the winding iron core 2 are fixed on the lead wire protective sleeve mounting hole 9 by the lead wire protective sleeve 5 and are coated with the fastening adhesive for solidification loosening, and the bridge wire 7 is arranged on a bridge wire fixing frame mounting hole 12 on the rotor support 8 by bolts and nuts by the bridge wire fixing frame 6 and is coated with the fastening adhesive for solidification loosening.

The rotor bracket 8 of the exciter rotor is provided with a rotary rectifier mounting ring 10, a balance block mounting and adjusting dovetail groove 11, a lead wire protective sleeve mounting hole 9 and a bridge wire fixing frame mounting hole 12. The rotary rectifier 1 is directly fixed on the rectifier mounting ring 10 through nuts and is circumferentially and radially distributed, so that the mass of the rotary rectifier 1 is circumferentially and radially distributed, unbalance of an exciter rotor is reduced, and the balance weight 3 is installed in the adjusting dovetail groove 11 through screws and can be circumferentially and radially adjusted by 360 degrees according to unbalance conditions. The bridge wire fixing frame 6 is fixed on the rotor support 8 through bolt and nut fasteners, the connecting wire between the rectifiers 1 is fixed on the support through the lead wire protecting sleeve 5, and the mounting positions of the rectifiers 1, the balance weights 3, the lead wire protecting sleeve 5 and the bridge wire fixing frame are coated with fastening glue for fastening and solidifying, so that loosening is prevented. The winding iron core is pressed on the rotor bracket.

A novel exciter rotor is characterized in that a rotary rectifier mounting ring, a balance weight mounting and adjusting dovetail groove, a wire passing protective sleeve and a bridge wire passing fixing frame are arranged on the exciter rotor, the rotary rectifier mounting ring, the balance weight mounting and adjusting dovetail groove and a rotor support are integrated, and a wire passing protective sleeve mounting hole and a bridge wire passing fixing frame mounting hole are formed in the rotor support. And (3) mounting and coating fastening glue for solidifying the rotary rectifier, the lead wire protective sleeve, the bridge wire fixing frame, the balance weight and the like.

Claims

1. An exciter rotor, which consists of a rotating rectifier, an iron core with windings, a balancing block, a lead wire, a lead wire protection sleeve, a bridge wire fixing frame, a bridge wire, a rotor bracket and fastening bolts; characterized in that: the rotating rectifier is directly mounted on the rotator mounting hole on the rotating rectifier mounting ring with nuts, and is fastened with fastening glue, which is evenly distributed in the circumference and radial direction; the iron core with windings is pressed onto the rotor bracket; the balancing block is fastened in the dovetail groove for balancing block installation and adjustment with screws, and is fastened with fastening glue to prevent loosening after the position is fixed; the rotating rectifier mounting ring is also provided with a lead wire protection sleeve mounting hole, and the lead wires between the rotating rectifier and the iron core with windings are fixed on the lead wire protection sleeve mounting hole through the lead wire protection sleeve, and are fastened with fastening glue to be cured and released; the bridge wire is installed on the bridge wire fixing frame mounting hole on the rotor bracket with bolts and nuts through the bridge wire fixing frame, and is fastened with fastening glue to be cured and released;

The rotor bracket of the exciter rotor is designed with a rotating rectifier mounting ring, a dovetail groove for balancing block installation and adjustment, a lead wire protection cover mounting hole, and a bridge wire fixing frame mounting hole;

The rotating rectifier is directly fixed on the rectifier mounting ring by nuts, which are distributed radially around the circumference. This makes the mass of the rotating rectifier distributed radially around the circumference, reducing the imbalance of the exciter rotor. The balancing block is installed in the adjusting dovetail groove by screws and can be adjusted 360 degrees around the circumference according to the imbalance situation.