Commutator convenient to install

Abstract

The utility model provides a commutator convenient to install, and belongs to the field of commutators. A commutator convenient to install comprises an installation seat, a first fixing ring and a fixing assembly are fixedly installed on the installation seat, a plurality of commutator segments are arranged on the peripheral side of the installation seat, a threaded ring is arranged on the peripheral side of the first fixing ring in a threaded fit mode, and a first insulating ring corresponding to the threaded ring is fixedly installed on the lower surface of the threaded ring. Two bolts are arranged in the fixing assembly in a rotating fit mode, one end of each bolt is provided with a pressing ring in a threaded fit mode, a second insulating ring arranged on the circumferential sides of the commutator segments in a sleeving mode is arranged between the pressing rings and the fixing assembly, and the installation base is of a hollow pipe body structure. According to the utility model, the threaded ring and the first insulating ring limit and fix the top of the commutator segment, so that the commutator segment is not easy to separate from the commutator in the moving process after being fixed, and the commutator is more stable in use.

Description

Technical Field

[0001] The utility model relates to the technical field of commutators, in particular to a commutator which is easy to install. Background Art

[0002] The commutator, also known as the rectifier, is an important component on the armature of a DC motor and an AC commutator motor. It is composed of many copper sheets separated by mica sheets and is cylindrical or disc-shaped. Each copper sheet is connected to several armature winding elements. When the armature rotates, the copper sheets contact the fixed brushes one after another.

[0003] In the prior art, there is a commutator that is easy to install, such as patent number: CN214379194U, which includes a mounting seat, a limit ring and a plurality of commutator segments arranged at intervals to form a cylindrical commutator assembly, an insulating sheet is provided between two adjacent commutator segments, and the commutator assembly is sleeved on the outside of the mounting seat. The advantage is that the commutator assembly is sleeved on the outside of the mounting seat and detachably fixed by the cooperation of the limit ring and the limit cover. The installation only requires the commutator assembly to be inserted into the mounting seat along the axial direction and fixed by bolts. However, the existing commutator that is easy to install has the problem that it cannot limit and fix the top of the commutator segment, so that the commutator segment of the existing commutator is easy to detach from the commutator during the movement. Therefore, a commutator that is easy to install is proposed. Utility Model Content

[0004] In view of this, the embodiment of the utility model hopes to provide a commutator that is easy to install to solve or alleviate the technical problems existing in the prior art. The top of the commutator segment is limited and fixed by a threaded ring and a first insulating ring, so that after the commutator segment is fixed, it is not easy to separate from the commutator during the movement, thereby making the commutator more stable when in use.

[0005] The technical solution of the utility model embodiment is achieved as follows:

[0006] A commutator that is easy to install includes a mounting seat, on which a first fixing ring and a fixing assembly are fixedly mounted, a plurality of commutator segments are arranged on the circumferential side of the mounting seat, a threaded ring is arranged on the circumferential side of the first fixing ring, a first insulating ring corresponding to the threaded ring is fixedly mounted on the lower surface of the threaded ring, two bolts are rotatably mounted in the fixing assembly, one end of the two bolts are threadedly mounted with a clamping ring, and a second insulating ring sleeved on the circumferential side of the plurality of commutator segments is arranged between the clamping ring and the fixing assembly.

[0007] Preferably: the mounting seat is a hollow tube structure, and a plurality of positioning seats for positioning the plurality of commutator segments are fixedly installed on the bottom circumference of the mounting seat, and the tops of the plurality of positioning seats are all truncated cone structures. The installation of the positioning seats can be used for positioning during the installation of the commutator segments, so that the commutator segments can be installed in the exact position.

[0008] Preferably: the bottoms of the plurality of commutator segments are provided with positioning notches corresponding to the positioning seats, the fixing assembly comprises a second fixing ring fixedly mounted inside the mounting seat, a limiting ring fixedly mounted on the circumferential side of the second fixing ring, two bolts are rotatably arranged at both ends of the limiting ring, and the installation of the limiting ring can limit the sliding second insulating ring, so that the second insulating ring is not easily separated from the commutator during the sliding process.

[0009] Preferably, the second insulating ring is arranged in a triangular structure, and the sides where the limiting ring and the clamping ring are close to each other are provided with an inclination angle corresponding to the second insulating ring, and the inclination angle facilitates the limiting ring and the clamping ring to press the second insulating ring.

[0010] Preferably: a mica sheet is arranged between each two adjacent commutator segments, an annular groove is provided on the top of the plurality of commutator segments, the first insulating ring is located in the annular groove, a first inclination angle is provided on both sides of the bottom of the first insulating ring, and a second inclination angle corresponding to the first inclination angle is provided on both sides of the top of the annular groove, and the first inclination angle is provided to facilitate the positioning between the commutator segment and the first insulating ring.

[0011] Preferably, the first fixing ring is provided with an external thread on its circumferential side, and the inner wall of the threaded ring is provided with a threaded hole which is matched with the external thread. The threaded hole is provided to facilitate the threaded matching of the first fixing ring and the threaded ring.

[0012] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0013] 1. The utility model can compress and fix a plurality of commutator segments by providing a clamping ring and a second insulating ring. Because the commutator segments are compressed and fixed by the clamping ring and the second insulating ring, the installation and removal of the commutator segments are more convenient.

[0014] Second, the utility model limits and fixes the top of the commutator segment by means of the threaded ring and the first insulating ring, so that after the commutator segment is fixed, it is not easy to separate from the commutator during the movement, thereby making the commutator more stable when in use.

[0015] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 This is a bottom view of the structure of the utility model;

[0019] Figure 3 It is a cross-sectional structural diagram of the utility model;

[0020] Figure 4 This is a structural diagram of the second insulating ring of the utility model.

[0021] Figure numerals: 1. mounting seat; 2. first fixing ring; 3. fixing assembly; 4. commutator segment; 5. threaded ring; 7. first insulating ring; 8. bolt; 9. clamping ring; 10. second insulating ring; 11. positioning seat; 12. second fixing ring; 13. limiting ring; 14. mica sheet. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4As shown, an embodiment of the utility model provides a commutator that is easy to install, including: a mounting seat 1, on which a first fixing ring 2 and a fixing assembly 3 are fixedly mounted, a plurality of commutator segments 4 are arranged on the circumference of the mounting seat 1, a threaded ring 5 is threadedly arranged on the circumference of the first fixing ring 2, a first insulating ring 7 corresponding to the threaded ring 5 is fixedly mounted on the lower surface of the threaded ring 5, two bolts 8 are rotatably arranged in the fixing assembly 3, one end of the two bolts 8 are threadedly arranged with a clamping ring 9, and a second insulating ring 10 sleeved on the circumference of the plurality of commutator segments 4 is arranged between the clamping ring 9 and the fixing assembly 3.

[0025] In this embodiment, specifically: the mounting seat 1 is a hollow tube structure, and a plurality of positioning seats 11 are fixedly installed on the bottom circumference of the mounting seat 1 for positioning the plurality of commutator segments 4 respectively. The tops of the plurality of positioning seats 11 are all truncated cone structures. The installation of the positioning seats 11 can position the commutator segments 4 during the installation process, and the first insulating ring 7 is made of rubber.

[0026] In the present embodiment, specifically: a plurality of commutator segments 4 are provided with positioning notches corresponding to the positioning seat 11 at their bottoms, the fixing assembly 3 comprises a second fixing ring 12 fixedly mounted inside the mounting seat 1, and a limiting ring 13 fixedly mounted on the periphery of the second fixing ring 12, two bolts 8 are rotatably arranged at both ends of the limiting ring 13, and the installation of the bolts 8 facilitates driving the clamping ring 9 to slide and squeeze the second insulating ring 10.

[0027] In this embodiment, specifically: the second insulating ring 10 is arranged in a triangular structure, and the side where the limiting ring 13 and the clamping ring 9 are close to each other is provided with an inclination angle corresponding to the second insulating ring 10, and the second insulating ring 10 is made of rubber material. The installation of the second insulating ring 10 facilitates the extrusion and fixation of the commutator segment 4.

[0028] In the present embodiment, specifically: a mica sheet 14 is provided between every two adjacent commutator segments 4, an annular groove is provided on the top of the plurality of commutator segments 4, the first insulating ring 7 is located in the annular groove, a first inclination angle is provided on both sides of the bottom of the first insulating ring 7, a second inclination angle corresponding to the first inclination angle is provided on both sides of the top of the annular groove, and the installation of the mica sheet 14 makes it difficult for the plurality of commutator segments 4 to contact each other.

[0029] In this embodiment, specifically: an external thread is provided on the circumferential side of the first fixing ring 2, and a threaded hole is provided on the inner wall of the threaded ring 5 to cooperate with the external thread. The threaded hole is provided to facilitate the threaded cooperation between the first fixing ring 2 and the threaded ring 5, and to facilitate the threaded ring 5 to drive the first insulating ring 7 to slide.

[0030] When the utility model is working: when it is necessary to press and fix the bottom of the commutator segment 4, the bolt 8 needs to be rotated at this time, and the rotation of the bolt 8 drives the clamping ring 9 to slide toward the side close to the fixing assembly 3, and the clamping ring 9 during the sliding process presses and fixes the second insulating ring 10, and the compressed second insulating ring 10 at this time presses and fixes the bottoms of multiple commutator segments 4, and the commutator segment 4 at this time is fixed on the commutator, and the disassembly is similar;

[0031] When the first insulating ring 7 limits and fixes the top of the commutator segment 4, the first insulating ring 7 is rotated at this time. The first insulating ring 7 is driven to slide downward during the rotation. The first insulating ring 7 fixes multiple commutator segments 4 during the sliding process. When the commutator segment 4 is not fixed, it is not easy for the commutator segment 4 to separate from the commutator when it moves.

[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A commutator that is easy to install, comprising a mounting seat (1), characterized in that: The mounting seat (1) is fixedly mounted with a first fixing ring (2) and a fixing assembly (3); a plurality of commutator segments (4) are arranged on the peripheral side of the mounting seat (1); a threaded ring (5) is arranged on the peripheral side of the first fixing ring (2) in a threaded manner; and a first insulating ring (7) corresponding to the threaded ring (5) is fixedly mounted on the lower surface of the threaded ring (5); Two bolts (8) are rotatably arranged in the fixing assembly (3), one end of each of the two bolts (8) is threadedly arranged with a clamping ring (9), and a second insulating ring (10) sleeved on the circumference of the plurality of commutator segments (4) is arranged between the clamping ring (9) and the fixing assembly (3).

2. A commutator that is easy to install according to claim 1, characterized in that: The mounting seat (1) is a hollow tube structure, and a plurality of positioning seats (11) for positioning a plurality of commutator segments (4) are fixedly mounted on the bottom circumference of the mounting seat (1), and the tops of the plurality of positioning seats (11) are all truncated cone structures.

3. A commutator that is easy to install according to claim 2, characterized in that: The bottoms of the plurality of commutator segments (4) are each provided with a positioning notch corresponding to the positioning seat (11); the fixing assembly (3) comprises a second fixing ring (12) fixedly mounted inside the mounting seat (1), a limiting ring (13) fixedly mounted on the circumference of the second fixing ring (12); and two bolts (8) are rotatably arranged at both ends of the limiting ring (13).

4. A commutator that is easy to install according to claim 3, characterized in that: The second insulating ring (10) is arranged in a triangular structure, and the side where the limiting ring (13) and the pressing ring (9) are close to each other is provided with an inclination angle corresponding to the second insulating ring (10).

5. A commutator that is easy to install according to claim 1, characterized in that: A mica sheet (14) is provided between each two adjacent commutator segments (4), an annular groove is provided on the top of the plurality of commutator segments (4), a first insulating ring (7) is located in the annular groove, a first inclination angle is provided on both sides of the bottom of the first insulating ring (7), and a second inclination angle corresponding to the first inclination angle is provided on both sides of the top of the annular groove.

6. A commutator that is easy to install according to claim 5, characterized in that: The first fixing ring (2) is provided with an external thread on its circumference, and the inner wall of the threaded ring (5) is provided with a threaded hole that is matched with the external thread.

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