Lightweight groove type commutator

Abstract

The utility model discloses a light-weight groove-type commutator, belongs to the technical field of groove-type commutators, and solves the problems that a plurality of commutator segments need to be fixed on a commutator main body through bolts in sequence in the prior art, time is wasted, and the assembly efficiency is low, the light-weight groove-type commutator comprises an insulating sleeve, the outer side of the insulating sleeve is provided with the commutator segments, and the commutator segments are arranged on the outer side of the insulating sleeve. The bottom end of each commutator segment is provided with a bonding wire groove, a gap between the commutator segments is an insulation gap, the insulation sleeve is internally provided with a fixing assembly, the sleeve is sleeved on the inner ring of the insulation sleeve, and then the annular clamping plate is clamped in the arc-shaped clamping groove. The purpose of directly limiting and fixing all commutator segments on the insulating sleeve is achieved, the use is simple and convenient, the assembly time is saved, the assembly efficiency is improved, the limiting ring is fixed at the top end of the sleeve, the sleeve cannot be separated from the interior of the insulating sleeve under the limitation of the limiting ring and the mounting ring, and the assembly efficiency is improved. The purpose of fixing the fixing assembly on the insulating sleeve is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of slot-type commutators, in particular to a lightweight slot-type commutator. Background Art

[0002] The slot-type commutator has a slot milled on the raised part of the commutator segment, and the coil head is embedded in this slot, which is then spot welded (hot-pressed). The paint film of the enameled wire melts and dissipates under the high temperature during spot welding, so that the wire ends and the commutator segment slot wall form a good electrical connection.

[0003] After searching, the application with patent application number CN202320576056.6 discloses a slot-type commutator, including a commutator body, a commutator segment and a through slot, the commutator body is provided with a commutator segment on the outside, the commutator body is provided with a through slot inside, a reinforcement structure is provided inside the through slot, a fixing structure is provided inside the commutator segment, the fixing structure includes a fixing bolt, a through hole and a fixing slot, the through hole is provided inside the commutator segment, the fixing slot is provided inside the commutator body, a through hole at one end of the fixing bolt is inserted into the inside of the fixing slot, and an external thread is provided on the outside of the fixing bolt;

[0004] Although the slot-type commutator can fix each commutator segment individually through the coordinated use of the fixing bolts, through holes and fixing slots in the fixing structure, and can prevent the commutator segments from flying during use, the slot-type commutator requires that multiple commutator segments be fixed to the commutator body in turn by bolts, which is time-consuming and has low assembly efficiency.

[0005] Therefore, we proposed a lightweight slot-type commutator. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a lightweight slot-type commutator, which solves the problem that the prior device needs to sequentially fix multiple commutator segments on the commutator body by bolts, which is time-consuming and has low assembly efficiency.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a lightweight slot-type commutator, comprising an insulating sleeve, a commutator segment is arranged on the outside of the insulating sleeve, a welding wire groove is opened at the bottom end of the commutator segment, and the gap between the commutator segments is set as an insulating gap;

[0008] A fixing component is provided in the insulating sleeve;

[0009] The fixing assembly includes a sleeve movably mounted inside the insulating sleeve, a mounting ring is fixedly mounted on the bottom surface of the sleeve, an arc-shaped groove is opened on the bottom surface of the commutator segment, an annular clamping plate is fixedly mounted on the outer ring of the top surface of the mounting ring, and the annular clamping plate is clamped inside the arc-shaped groove.

[0010] Preferably, the annular clamping plate is interference fit with the arc-shaped clamping groove, and the sleeve is interference fit with the inner ring of the insulating sleeve, wherein the interference fit has good impact resistance, which is beneficial to improving the stability of the connection between the fixing component and the insulating sleeve.

[0011] Preferably, an array of distributed snap-in blocks are fixedly mounted on the top surface of the annular snap-in plate, the spacing between adjacent snap-in blocks is the same as the width of the commutator segment, and the size of the snap-in blocks matches the size of the insulating gap, so as to quickly align the arc-shaped snap-in groove on the bottom surface of the commutator segment and the annular snap-in plate, thereby improving the installation efficiency during snap-in.

[0012] Preferably, the top surface of the sleeve is flush with the top surface of the insulating sleeve, and a limiting ring is provided on the top surface of the sleeve. The diameter of the limiting ring is larger than the diameter of the inner ring of the insulating sleeve, and a second threaded hole is provided on the top surface of the limiting ring. A first threaded hole opposite to the position of the second threaded hole is provided on the top surface of the sleeve, and the internal threads of the first threaded hole and the second threaded hole are provided with flat head screws, wherein the limiting ring can be fixed on the top surface of the sleeve by the flat head screws, and then under the restriction of the limiting ring and the mounting ring, the sleeve cannot be detached from the inside of the insulating sleeve.

[0013] Preferably, the sleeve is made of PPS material, wherein the PPS material has high hardness, good thermal stability, and a long service life, and can support the inner ring of the insulating sleeve.

[0014] The utility model provides a lightweight slot-type commutator, which has the following beneficial effects:

[0015] The lightweight slot-type commutator achieves the purpose of directly limiting and fixing all the commutator segments on the insulating sleeve by first sleeve-sleeving the sleeve on the inner ring of the insulating sleeve, then aligning the clamping block with the insulating gap, then clamping the clamping block inside the insulating gap, and then clamping the annular clamping plate inside the arc-shaped clamping groove, thereby achieving the purpose of directly limiting and fixing all the commutator segments on the insulating sleeve, and being able to avoid the commutator segments from flying when in use. The use is simple and convenient, and the assembly time is saved, which is beneficial to improving the assembly efficiency. Then, the end of the flat-head screw is sequentially passed through the second threaded hole and the first threaded hole, and then the limiting ring is fixed to the top end of the sleeve. Then, under the restriction of the limiting ring and the mounting ring, the sleeve cannot be detached from the inside of the insulating sleeve, thereby achieving the purpose of fixing the fixing assembly on the insulating sleeve, and solving the problem that the existing device needs to sequentially fix multiple commutator segments on the commutator body by bolts, which is relatively time-consuming and has low assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2It is a side view structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the commutator structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the split structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the disassembled structure of the fixed component of the utility model.

[0021] In the figure: 1. insulating sleeve; 2. commutator segment; 21. welding wire groove; 22. insulating gap; 23. arc-shaped slot; 3. fixing assembly; 31. sleeve; 32. limit ring; 33. mounting ring; 34. annular clamping plate; 35. clamping block; 36. first threaded hole; 37. second threaded hole; 38. flat head screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Figure 1-5As shown: it includes an insulating sleeve 1, a commutator segment 2 is arranged on the outside of the insulating sleeve 1, a welding wire groove 21 is opened at the bottom end of the commutator segment 2, and the gap between the commutator segments 2 is set as an insulating gap 22. A fixing component 3 is arranged in the insulating sleeve 1, and the fixing component 3 includes a sleeve 31 movably sleeved inside the insulating sleeve 1, and a mounting ring 33 is fixedly installed on the bottom surface of the sleeve 31. An arc-shaped groove 23 is opened on the bottom surface of the commutator segment 2, and an annular clamping plate 34 is fixedly installed on the outer ring of the top surface of the mounting ring 33. The annular clamping plate 34 is clamped inside the arc-shaped groove 23, and the annular clamping plate 34 is interference-fitted with the arc-shaped groove 23. The sleeve 31 is interference-fitted with the inner ring of the insulating sleeve 1, and the top surface of the annular clamping plate 34 is fixedly installed with array-distributed clamping blocks 35, and adjacent clamps are fixedly mounted on the top surface of the annular clamping plate 34. The spacing of the connecting block 35 is the same as the width of the commutator segment 2, and the size of the clamping block 35 matches the size of the insulating gap 22. By first sleeve-mounting the sleeve 31 on the inner ring of the insulating sleeve 1, and then aligning the clamping block 35 with the insulating gap 22, and then clamping the clamping block 35 inside the insulating gap 22, and then clamping the annular clamping plate 34 inside the arc-shaped clamping groove 23, the purpose of directly limiting and fixing all the commutator segments 2 on the insulating sleeve 1 is achieved, and the commutator segments 2 can be prevented from flying when in use. It is simple and convenient to use, saves assembly time, and is beneficial to improving assembly efficiency. It solves the problem that the existing device needs to fix multiple commutator segments on the commutator body by bolts in sequence, which is relatively time-consuming and has low assembly efficiency.

[0024] Example 2: Figure 1-5 As shown: the top surface of the sleeve 31 is flush with the top surface of the insulating sleeve 1, and a limit ring 32 is arranged on the top surface of the sleeve 31. The diameter of the limit ring 32 is larger than the diameter of the inner ring of the insulating sleeve 1. A second threaded hole 37 is provided on the top surface of the limit ring 32, and a first threaded hole 36 is provided on the top surface of the sleeve 31 opposite to the second threaded hole 37. The internal threads of the first threaded hole 36 and the second threaded hole 37 are provided with flat head screws 38. The sleeve 31 is made of PPS material. The limit ring 32 can be fixed on the top surface of the sleeve 31 by the flat head screws 38. Then, under the restriction of the limit ring 32 and the mounting ring 33, the sleeve 31 cannot be detached from the inside of the insulating sleeve 1. The PPS material has high hardness, good thermal stability, and a long service life, and can support the inner ring of the insulating sleeve 1.

[0025] Working principle and use process of the utility model: When assembling the lightweight slot-type commutator, the sleeve 31 is first sleeved on the inner ring of the insulating sleeve 1, and then the clamping block 35 is aligned with the insulating gap 22, and then the clamping block 35 is clamped inside the insulating gap 22, and then the annular clamping plate 34 is clamped inside the arc-shaped clamping groove 23, so that all the commutator segments 2 on the insulating sleeve 1 can be directly limited and fixed, and then the end of the flat head screw 38 is passed through the second threaded hole 37 and the first threaded hole 36 in turn, and then the limiting ring 32 is fixed to the top of the sleeve 31, and then under the restriction of the limiting ring 32 and the mounting ring 33, the sleeve 31 cannot be detached from the inside of the insulating sleeve 1.

[0026] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lightweight slot-type commutator, comprising an insulating sleeve (1), a commutator segment (2) being arranged on the outer side of the insulating sleeve (1), a welding wire groove (21) being provided at the bottom end of the commutator segment (2), and a gap between the commutator segments (2) being set as an insulating gap (22); Features: The insulating sleeve (1) is provided with a fixing component (3); The fixing assembly (3) comprises a sleeve (31) movably sleeved inside the insulating sleeve (1); a mounting ring (33) is fixedly mounted on the bottom surface of the sleeve (31); an arc-shaped groove (23) is formed on the bottom surface of the commutator segment (2); an annular clamping plate (34) is fixedly mounted on the outer ring of the top surface of the mounting ring (33); and the annular clamping plate (34) is clamped inside the arc-shaped groove (23).

2. A lightweight slot-type commutator according to claim 1, characterized in that: The annular clamping plate (34) is interference-fitted with the arc-shaped clamping groove (23), and the sleeve (31) is interference-fitted with the inner ring of the insulating sleeve (1).

3. A lightweight slot-type commutator according to claim 1, characterized in that: An array of distributed clamping blocks (35) are fixedly mounted on the top surface of the annular clamping plate (34); the spacing between adjacent clamping blocks (35) is the same as the width of the commutator segment (2); and the size of the clamping blocks (35) matches the size of the insulating gap (22).

4. A lightweight slot-type commutator according to claim 1, characterized in that: The top surface of the sleeve (31) is flush with the top surface of the insulating sleeve (1); a limit ring (32) is provided on the top surface of the sleeve (31); the diameter of the limit ring (32) is larger than the diameter of the inner ring of the insulating sleeve (1); a second threaded hole (37) is provided on the top surface of the limit ring (32); a first threaded hole (36) is provided on the top surface of the sleeve (31) and is opposite to the second threaded hole (37); and a flat head screw (38) is provided on the internal threads of the first threaded hole (36) and the second threaded hole (37).

5. A lightweight slot-type commutator according to claim 1, characterized in that: The sleeve (31) is made of PPS material.

Images