Brushless exciter rotor support

Abstract

The utility model discloses a brushless exciter rotor support, which belongs to the technical field of exciters, and comprises an inner cylinder and an outer cylinder, a reinforcing rib plate is arranged between the inner cylinder and the outer cylinder, and the reinforcing rib plate, the inner cylinder and the outer cylinder are clamped and fixed together through a clamping assembly; through the cooperation of the clamping assembly, the abutting frame and the abutting sleeve, the reinforcing rib plate can be installed between the inner cylinder and the outer cylinder, the reinforcing rib plate can improve the connection strength between the inner cylinder and the outer cylinder, the end cover can be fixedly installed at one end of the outer cylinder through the arrangement of the locking assembly so as to limit the abutting frame, and therefore the end cover can be fixed to the inner cylinder and the outer cylinder. The heat dissipation grooves are formed in the surface of the inner cylinder and used in cooperation with the heat dissipation channels, the heat dissipation effect of the support can be improved, the dustproof net ring is installed in the inner cavity of the abutting sleeve, dustproof protection can be conducted on the space between the outer cylinder and the inner cylinder, and external dust is prevented from entering the space between the outer cylinder and the inner cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of exciters, in particular to a brushless exciter rotor bracket. Background Technique

[0002] The exciter rotor bracket is a double-layer coaxial cylinder. Due to its insufficiently firm structure and low strength, most brackets often have problems such as deformation and fracture during actual use or transportation. Especially for generators with large torque and vibration, the deformation and fracture problems of the installation brackets are particularly serious. Moreover, the existing rotor brackets have poor heat dissipation and dust prevention performance.

[0003] For example, the Chinese patent with the publication number CN207353938U discloses a brushless exciter rotor bracket, which includes an outer cylinder and an inner cylinder. One end of the inner cylinder is located inside the outer cylinder, and the length of the inner cylinder inside the outer cylinder is one-half of the total length of the outer cylinder. A reinforcing rib plate is arranged between one end of the inner cylinder located inside the outer cylinder and the outer cylinder. The shape of the reinforcing rib plate is a right trapezoid. A first installation groove is arranged on the inner wall of the outer cylinder, and a second installation groove is arranged on the surface of the inner cylinder located inside the outer cylinder. By installing the part of the inner cylinder outside the outer cylinder on the motor main shaft, and setting the length of the inner cylinder inside the outer cylinder to be one-half of the total length of the outer cylinder, the overall strength of the bracket can be effectively improved. The use of eight reinforcing rib plates can prevent the deformation of the outer cylinder, and the air circulation can be enhanced through the gaps between the reinforcing rib plates, achieving a good heat dissipation effect.

[0004] For the brushless exciter rotor bracket involved in the above patent, when installing, the inner cylinder is installed on the exciter rotor. Since the inner cylinder is in a closed state, its heat dissipation effect is weak, and there is no dust prevention structure between the inner cylinder and the outer cylinder, resulting in dust easily entering its interior. Therefore, we need to propose a brushless exciter rotor bracket. Content of the Utility Model

[0005] The purpose of the utility model is to provide a brushless exciter rotor bracket, which has the advantages of good dust prevention and heat dissipation effects, so as to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides a rotor bracket of a brushless exciter, which comprises an inner cylinder and an outer cylinder. Reinforcing rib plates are arranged between the inner cylinder and the outer cylinder. The reinforcing rib plates, the inner cylinder and the outer cylinder are fixedly connected together by clamping components. The outer cylinder is sleeved outside the inner cylinder, and one end of the inner cylinder extends outside the outer cylinder. Heat dissipation grooves are formed in the part of the inner cylinder located outside the outer cylinder. An end cover is arranged at one end of the outer cylinder. A tightening sleeve is fixedly installed on one side of the end cover. The tightening sleeve is installed and fixed at one end of the outer cylinder through a locking component. A tightening frame for tightening the reinforcing rib plates is arranged in the inner cavity of the outer cylinder. A dust-proof net ring is fixedly installed in the inner cavity of the tightening sleeve.

[0007] Preferably, the clamping component comprises a plurality of groups of first clamping grooves formed on the surface of the inner cylinder. Second clamping grooves are formed on the inner wall of the outer cylinder at positions corresponding to the first clamping grooves. Two sides of the reinforcing rib plate are respectively clamped in the inner cavities of the first clamping groove and the second clamping groove.

[0008] Preferably, the tightening frame comprises a tightening ring arranged in the inner cavity of the outer cylinder. A plurality of groups of tightening shells are integrally formed on the surface of the tightening ring. There are multiple groups of the tightening shells, and one end of the reinforcing rib plate is clamped in the inner cavity of the tightening shell. Heat dissipation channels are formed between the multiple groups of tightening shells.

[0009] Preferably, the locking component comprises an external thread integrally formed on the surface of the tightening sleeve. A thread groove adapted to the external thread is formed at one end of the inner cavity of the outer cylinder. The tightening sleeve is screwed and fixed at one end of the outer cylinder through the cooperation of the external thread and the thread groove.

[0010] Preferably, one end of the second clamping groove penetrates through the outer cylinder and extends to the outside of the outer cylinder, and one side of the reinforcing rib plate is slidably connected to the inner wall of the second clamping groove.

[0011] Preferably, the reinforcing rib plates are trapezoidally arranged. There are multiple groups of the reinforcing rib plates, and the multiple groups of reinforcing rib plates are equidistantly arranged between the inner cylinder and the outer cylinder.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] Through the cooperation of the clamping component, the tightening frame and the tightening sleeve, the utility model can install the reinforcing rib plate between the inner cylinder and the outer cylinder. The reinforcing rib plate can improve the connection strength between the inner cylinder and the outer cylinder. Through the setting of the locking component, the end cover can be installed and fixed at one end of the outer cylinder to limit the tightening frame. In this device, heat dissipation grooves are opened on the surface of the inner cylinder, and their cooperation with the heat dissipation channels can improve the heat dissipation effect of this bracket. And a dust-proof net ring is installed in the inner cavity of the tightening sleeve, which can protect the space between the outer cylinder and the inner cylinder from dust and prevent external dust from entering the space between the outer cylinder and the inner cylinder. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the utility model;

[0015] Figure 2 is a schematic structural diagram of the locking component of the utility model;

[0016] Figure 3 is a schematic structural diagram of the clamping component of the utility model;

[0017] Figure 4 is a schematic structural diagram of the dust-proof net ring of the utility model;

[0018] Figure 5 is a schematic structural diagram of the tightening frame of the utility model.

[0019] In the figure: 1, inner cylinder; 2, outer cylinder; 3, reinforcing rib plate; 4, heat dissipation groove; 5, end cover; 6, tightening sleeve; 7, tightening frame; 8, dust-proof net ring; 9, first card slot; 10, second card slot; 11, tightening ring; 12, tightening shell; 13, heat dissipation channel; 14, external thread; 15, thread groove. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 5, the present utility model provides a brushless exciter rotor bracket, which includes an inner cylinder 1 and an outer cylinder 2. Reinforcing rib plates 3 are arranged between the inner cylinder 1 and the outer cylinder 2. The reinforcing rib plates 3, the inner cylinder 1 and the outer cylinder 2 are fixedly connected together by a clamping component. The clamping component includes several groups of first clamping grooves 9 opened on the surface of the inner cylinder 1. Second clamping grooves 10 are opened on the inner wall of the outer cylinder 2 at positions corresponding to the first clamping grooves 9. Both sides of the reinforcing rib plate 3 are clamped in the inner cavities of the first clamping groove 9 and the second clamping groove 10 respectively. One end of the second clamping groove 10 penetrates through the outer cylinder 2 and extends to the outside of the outer cylinder 2, and one side of the reinforcing rib plate 3 is slidably connected to the inner wall of the second clamping groove 10. The reinforcing rib plate 3 is trapezoidally arranged. There are multiple groups of reinforcing rib plates 3, and multiple groups of reinforcing rib plates 3 are equidistantly arranged between the inner cylinder 1 and the outer cylinder 2.

[0022] In this embodiment, reinforcing rib plates 3 are arranged between the inner cylinder 1 and the outer cylinder 2 to improve the installation stability of the inner cylinder 1 and the outer cylinder 2. During installation, the user first needs to insert each group of reinforcing rib plates 3 into the inner cavity of the first clamping groove 9, and then the user aligns the position of the second clamping groove 10 of the outer cylinder 2 with the position of the first clamping groove 9, and then pushes the outer cylinder 2 towards the inner cylinder 1 to clamp the outer cylinder 2 on the surface of the reinforcing rib plate 3 through the second clamping groove 10.

[0023] Preferably, the outer cylinder 2 is sleeved outside the inner cylinder 1, and one end of the inner cylinder 1 extends to the outside of the outer cylinder 2. One end of the outer cylinder 2 is provided with an end cover 5. One side of the end cover 5 is fixedly installed with a tightening sleeve 6. The tightening sleeve 6 is installed and fixed at one end of the outer cylinder 2 through a locking component. A tightening frame 7 for tightening the reinforcing rib plate 3 is arranged in the inner cavity of the outer cylinder 2. The locking component includes an external thread 14 integrally formed on the surface of the tightening sleeve 6. A thread groove 15 adapted to the external thread 14 is opened at one end of the inner cavity of the outer cylinder 2. The tightening sleeve 6 is screwed and fixed at one end of the outer cylinder 2 through the cooperation of the external thread 14 and the thread groove 15.

[0024] After connecting the inner cylinder 1 and the outer cylinder 2 together through the reinforcing rib plate 3, the user can insert the tightening frame 7 into the inner cavity of the outer cylinder 2 so that one side of it abuts against one end of the inner cylinder 1 located in the inner cavity of the outer cylinder 2. Then the user can rotate the end cover 5. Under the cooperation of the external thread 14 and the thread groove 15, the tightening sleeve 6 can be threadedly connected to one end of the outer cylinder 2. At this time, one end of the tightening sleeve 6 will abut the tightening frame 7 against one end of the inner cylinder 1. At this time, the reinforcing rib plate 3 will be tightly fixed, so that the reinforcing rib plate 3 is installed together with the inner cylinder 1 and the outer cylinder 2.

[0025] It should be noted that the tightening frame 7 includes a tightening ring 11 disposed in the inner cavity of the outer cylinder 2. A plurality of groups of tightening shells 12 are integrally formed on the surface of the tightening ring 11. There are multiple groups of tightening shells 12, and one end of the reinforcing rib plate 3 is clamped in the inner cavity of the tightening shell 12. A heat dissipation channel 13 is formed between the multiple groups of tightening shells 12. A heat dissipation groove 4 is provided in the part of the inner cylinder 1 located outside the outer cylinder 2. A dust-proof net ring 8 is fixedly installed in the inner cavity of the tightening sleeve 6.

[0026] In this embodiment, the tightening frame 7 is composed of a tightening ring 11 and a tightening shell 12. A heat dissipation channel 13 is formed between adjacent two groups of tightening shells 12. Its cooperation with the heat dissipation groove 4 can improve the heat dissipation effect of the device. Moreover, after the installation is completed, the dust-proof net ring 8 is located between the inner cylinder 1 and the outer cylinder 2, which can play a dust-proof role and prevent external dust from entering between the outer cylinder 2 and the inner cylinder 1.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brushless exciter rotor support, comprising an inner cylinder (1) and an outer cylinder (2), wherein a reinforcing rib plate (3) is provided between the inner cylinder (1) and the outer cylinder (2), wherein the reinforcing rib plate (3) and the inner cylinder (1) and the outer cylinder (2) are clamped and fixed together by a clamping assembly, characterized in that: The outer cylinder (2) is sleeved on the outside of the inner cylinder (1), and one end of the inner cylinder (1) extends to the outside of the outer cylinder (2); a heat dissipation groove (4) is provided on the portion of the inner cylinder (1) located outside the outer cylinder (2); an end cover (5) is provided at one end of the outer cylinder (2); a tightening sleeve (6) is fixedly installed on one side of the end cover (5); the tightening sleeve (6) is fixedly installed on one end of the outer cylinder (2) through a locking assembly; the inner cavity of the outer cylinder (2) is provided with a tightening frame (7) for tightening the reinforcing rib plate (3); and a dustproof mesh ring (8) is fixedly installed in the inner cavity of the tightening sleeve (6).

2. The brushless exciter rotor bracket according to claim 1, characterized in that: The clamping assembly comprises a plurality of groups of first clamping grooves (9) formed on the surface of the inner cylinder (1); second clamping grooves (10) are formed on the inner wall of the outer cylinder (2) at positions corresponding to the first clamping grooves (9); and two sides of the reinforcing rib plate (3) are respectively clamped in the inner cavities of the first clamping grooves (9) and the second clamping grooves (10).

3. The brushless exciter rotor bracket according to claim 1, characterized in that: The clamping frame (7) comprises a clamping ring (11) arranged in the inner cavity of the outer cylinder (2), and a plurality of clamping shells (12) are integrally formed on the surface of the clamping ring (11). The clamping shells (12) are provided in a plurality of groups, and one end of the reinforcing rib plate (3) is clamped in the inner cavity of the clamping shell (12), and a heat dissipation channel (13) is formed between the plurality of groups of the clamping shells (12).

4. The brushless exciter rotor support according to claim 1, characterized in that: The locking assembly comprises an external thread (14) integrally formed on the surface of the abutting sleeve (6); one end of the inner cavity of the outer cylinder (2) is provided with a thread groove (15) adapted to the external thread (14); the abutting sleeve (6) is fixed to one end of the outer cylinder (2) by tightening the external thread (14) and the thread groove (15).

5. The brushless exciter rotor support according to claim 2, characterized in that: One end of the second slot (10) passes through the outer cylinder (2) and extends to the outside of the outer cylinder (2), and one side of the reinforcing rib plate (3) is slidably connected to the inner wall of the second slot (10).

6. The brushless exciter rotor bracket according to claim 1, characterized in that: The reinforcing rib plates (3) are arranged in a trapezoidal shape, and a plurality of groups of the reinforcing rib plates (3) are arranged, and the plurality of groups of the reinforcing rib plates (3) are equidistantly arranged between the inner cylinder (1) and the outer cylinder (2).

Images