A new type of exciter rotor

Abstract

The present invention discloses a novel exciter rotor, which is provided with a rotating rectifier mounting ring, a lead wire protection sleeve, a balancing block mounting and adjusting dovetail groove, and a bridge wire fixing frame, wherein the rotating rectifier mounting ring, the balancing block mounting and adjusting dovetail groove and the rotor bracket are integrated. The rotating rectifier, the lead wire protection sleeve, the bridge wire fixing frame, the balancing block and the like are installed by applying a fastening glue and curing. The exciter rotor fully considers various factors such as the assembly of components, the dynamic balancing of the rotor, and the fixing of the bridge wire, and makes full use of the limited space, so that the arrangement of components is compact and does not interfere with each other, and the space volume of the exciter rotor is miniaturized. The technical effects of the present invention are: (1) the rotating rectifier and the balancing block are directly and reliably fixed and installed; (2) the rotating rectifier is arranged radially on the circumference, and the balancing block is adjustable 360 ​​degrees on the circumference, thereby improving the dynamic balancing verification accuracy; (3) the lead wire and the bridge wire are reliably protected and are not easy to loosen or break; (4) the volume is small.

Description

Technical Field

[0001] The invention relates to a motor exciter rotor, in particular to a high-speed motor exciter rotor. Background Art

[0002] The exciter rotor of the motor mainly provides the excitation source for the main engine. The exciter rotor of a general motor consists of a winding core, lead wires, a rotating rectifier, fastening bolts, a rotor bracket, etc. The rotating rectifier is directly fixed to the rotor bracket by bolts, there is no dynamic balancing device, and the lead wires and bridge wires are not reliably fixed. This method has the following shortcomings: (1) The exciter rotor is a rotating part of the motor, and the parts on the exciter rotor need to be reliably fixed. The rotating rectifier is directly fixed to the rotor bracket by bolts. When the generator speed increases, it is easy to loosen, posing a safety hazard; (2) There is no dynamic balancing device, and the motor has a large unbalance. When the speed increases, the greater the vibration and the higher the noise caused by the unbalance, the higher the vibration and noise requirements of the motor cannot be met. Therefore, the unbalance requirement gradually decreases with the increase of the speed. High-precision unbalance requires more balancing block fixing space and a more reasonable layout; (3) The lead wires and bridge wires are not reliably fixed. When the motor rotates at high speed, the joints are easy to loosen and the lead wires are easy to break. Therefore, it is necessary to develop a new exciter rotor that can meet the installation requirements of components when running at high speeds and the requirements of high-precision dynamic balancing verification. Summary of the invention

[0003] The purpose of the present invention is to provide an exciter rotor that fully considers the assembly of the rotating rectifier, the dynamic balance of the rotor, the fixing of the lead wires and the bridge wires, etc., fully utilizes the limited space, makes the arrangement of the components compact without mutual interference, and ensures the reliable installation of the components, so as to miniaturize the space volume of the exciter rotor.

[0004] The present invention is implemented as follows: a new type of exciter rotor, the exciter rotor consists of a rotating rectifier, a winding core, 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; the characteristics are: the rotating rectifier is directly installed 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 winding core is pressed onto the rotor bracket; the balancing block is fastened in the balancing block installation and adjustment dovetail groove with screws, and after the position is fixed, fastening glue is applied to solidify and prevent loosening; 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 rotor core with winding are fixed on the lead wire protection sleeve mounting hole through the lead wire protection sleeve, and are coated with fastening glue to be solidified and loosened; 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 coated with fastening glue to be solidified and loosened. The balancing block is adjustable within a 360-degree circumference, and the specific position and number of the balancing blocks are adjusted according to the amount of imbalance.

[0005] The working principle of the present invention is: the components are directly fixed on the rotor bracket to minimize the use of fasteners; the components are arranged in a circumferential radial manner to reduce the unevenness of the mass and thus reduce the unbalance; the components are installed with anti-loosening treatment.

[0006] The technical effects of the present invention are as follows: the exciter rotor can be dynamically balanced, thereby improving the accuracy of the dynamic balance verification of the entire motor; the installation positions of the rotating rectifier and the balancing block are directly integrated with the rotor bracket, thereby reducing the space occupied by components; the lead wires and the bridge wires are reliably fixed by means of the wire sleeves and the fixing brackets; and the installation of the fasteners is processed to prevent loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is the front view of the present invention.

[0008] Figure 2 It is the right view of the present invention.

[0009] Figure 3 It is the front view of the lead wire protection cover of the present invention.

[0010] Figure 4 It is the right side view of the lead wire protection cover of the present invention.

[0011] Figure 5 It is a front view of the bridge wire fixing frame of the present invention.

[0012] Figure 6 It is a right view of the bridge wire fixing frame of the present invention.

[0013] Figure 7 This is the front view of the new rotor bracket used in this paper.

[0014] Figure 8This is the front view of the new rotor bracket used in this paper.

[0015] In the figure: 1. rotating rectifier, 2. stator core with winding, 3. balancing block, 4. lead wire, 5. lead wire protection cover, 6. bridge wire fixing frame, 7 bridge wire, 8. rotor bracket, 9. lead wire protection cover mounting hole, 10 rotating rectifier mounting ring, 11. balancing block installation adjustment dovetail groove, 12. bridge wire fixing frame mounting hole, 13 rotating rectifier mounting hole. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, but the embodiments are not intended to limit the present invention.

[0017] like Figure 1-Figure 4 As shown, the present invention is implemented as follows: Figure 1 As shown, the exciter rotor is composed of a rotating rectifier 1, a winding core 2, a balancing block 3, a lead wire 4, a lead wire protection cover 5, a bridge wire fixing frame 6, a bridge wire 7, a rotor bracket 8 and fastening bolts. The rotating rectifier 1 is directly mounted on the rotator mounting hole 13 on the rotating rectifier mounting ring 10 with nuts, and is fastened with fastening glue, which is evenly distributed in the circumference and radial direction; the winding core 2 is pressed onto the rotor bracket 8; the balancing block 3 is fastened in the balancing block installation and adjustment dovetail groove 11 with screws, and after the position is fixed, fastening glue is applied to solidify and prevent loosening. It is adjustable within a 360-degree range of the circumference, and the specific position and number of balancing blocks are adjusted according to the imbalance; the rotating rectifier mounting ring 10 is also provided with a lead wire protection cover mounting hole 9, and the lead wires 4 between the rotating rectifier 1 and between the rotor core 2 with windings are fixed on the lead wire protection cover mounting hole 9 through the lead wire protection cover 5, and are coated with fastening glue to be solidified and loosened; the bridge wire 7 is installed on the bridge wire fixing frame mounting hole 12 on the rotor bracket 8 through the bridge wire fixing frame 6 with bolts and nuts, and is coated with fastening glue to be solidified and loosened.

[0018] The rotor bracket 8 of the exciter rotor is designed with a rotating rectifier mounting ring 10, a balancing block mounting adjustment dovetail groove 11, a lead wire protection cover mounting hole 9, and a bridge wire fixing frame mounting hole 12. The rotating rectifier 1 is directly fixed on the rectifier mounting ring 10 by nuts, and is distributed radially around the circumference, so that the mass of the rotating rectifier 1 is distributed radially around the circumference, reducing the imbalance of the exciter rotor. The balancing block 3 is installed in the adjustment dovetail groove 11 by screws, and can be adjusted 360 degrees around the circumference according to the imbalance situation. The bridge wire fixing frame 6 is fixed to the rotor bracket 8 by bolt and nut fasteners, and the connection between the rectifiers 1 is fixed to the bracket by the lead wire protection cover 5. The installation places of the rectifier 1, the balancing block 3, the lead wire protection cover 5, and the bridge wire fixing frame are coated with fastening glue to tighten and solidify to prevent loosening. The winding core is pressed onto the rotor bracket.

[0019] A novel exciter rotor, characterized in that: the exciter rotor is provided with a rotating rectifier mounting ring, a balancing block mounting adjustment dovetail groove, a wire protection sleeve, and a bridge wire fixing frame; the rotating rectifier mounting ring, the balancing block mounting adjustment dovetail groove and the rotor bracket are integrated, and a wire protection sleeve mounting hole and a bridge wire fixing frame mounting hole are provided on the rotor bracket. The rotating rectifier, lead wire protection sleeve, bridge wire fixing frame, balancing block, etc. are installed by applying a fastening glue for curing.

Claims

1. An exciter rotor, which consists of a rotating rectifier, a winding core, a balancing block, a lead wire, a lead wire protection cover, a bridge wire fixing frame, a bridge wire, a rotor bracket and fastening bolts; characterized in that: The rotating rectifier is directly installed 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 winding is pressed on the rotor bracket; the balancing block is fastened in the balancing block installation and adjustment dovetail groove with screws, and after the position is fixed, fastening glue is applied to solidify and prevent loosening; the rotating rectifier mounting ring is also provided with lead wire protection cover mounting holes, and the lead wires between the rotating rectifier and the rotor iron core with winding are fixed on the lead wire protection cover mounting holes through lead wire protection covers, and fastening glue is applied to solidify and loosen; 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 fastening glue is applied to solidify and loosen; 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.

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