Commutator

Abstract

The utility model relates to the technical field of commutators, and discloses a commutator which comprises a base body, commutator segments arranged at equal intervals are arranged on the outer circumferential surface of the base body, insulating strips arranged at equal intervals are fixedly connected to the outer circumferential surface of the base body, the outer surfaces of the commutator segments make contact with the outer surfaces of the insulating strips, and a base is fixedly connected to the bottom surface of the base body. Threaded rods arranged at equal intervals are rotationally inserted into the base. According to the commutator, a driving gear drives a driven gear to rotate in the rotating process, a threaded rod is promoted to drive a threaded pipe to move, and then a positioning rod is moved into or out of a positioning groove, so that the effects of conveniently positioning a commutator segment, conveniently disassembling and assembling the commutator segment, reducing the maintenance burden of workers and improving the working efficiency are achieved; the commutator solves the problem that the commutator segments are troublesome to disassemble and replace although the commutator segments can be prevented from sliding out in the radial direction of the base body and normal operation of the commutator is guaranteed in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of commutators, and in particular to a commutator. Background Art

[0002] The commutator is an indispensable component in a DC motor. When the motor is working, the commutator rotates with the rotor, and the brushes contact different commutator segments at different times, thereby ensuring that the motor rotor can continue to rotate in a single direction while the current direction remains unchanged, so that the motor can work normally.

[0003] The existing patent (Announcement No.: CN216563942U) discloses a new type of commutator, which includes a substrate and multiple commutator segments; the commutator segments are mounted on the outer peripheral surface of the substrate and fixed relative to the substrate in the radial direction of the substrate, the commutator segments are parallel to the axial direction of the substrate, and two adjacent commutator segments are arranged at intervals; the substrate is provided with multiple slide grooves, and the multiple slide grooves are evenly distributed on the peripheral surface of the substrate, the extension direction of the slide grooves is parallel to the axial direction of the substrate, and one end of the slide grooves penetrates to one side end surface of the substrate to form a card interface; a slider is provided on one side of the commutator segment, and the slider is slidably connected to the slide groove through the card interface. In this application, the commutator segments can be replaced, and the commutator segments are not easy to slide out along the radial direction of the substrate, which is conducive to the safe and stable operation of the commutator.

[0004] Although the above commutator can prevent the commutator segments from sliding out radially along the base body and ensure the normal operation of the commutator, the commutator segments are troublesome to disassemble and replace, which is not conducive to the maintenance of the commutator segments, increases the workload of workers and reduces work efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides a commutator having the advantages of convenient disassembly and replacement of the commutator segments, convenient maintenance of the commutator, and reduced workload of workers. It solves the problem that although the existing commutator can prevent the commutator segments from sliding out radially along the base and ensure the normal operation of the commutator, the commutator segments are troublesome to disassemble and replace, which is not conducive to the maintenance of the commutator segments, increases the workload of workers, and reduces work efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a commutator, comprising a substrate, the outer circumferential surface of the substrate is provided with commutator segments arranged at equal intervals, the outer circumferential surface of the substrate is fixedly connected with insulating strips arranged at equal intervals, the outer surface of the commutator segments contacts the outer surface of the insulating strips, the bottom surface of the substrate is fixedly connected with a base, the interior of the base is rotatably plugged with threaded rods arranged at equal intervals, the outer circumferential surface of each threaded rod is threadedly connected with a threaded tube, the outer circumferential surface of the threaded tube is fixedly connected with a fixing plate, and the interior of the base is rotatably plugged with a control rod.

[0007] Through the above scheme, although the existing commutator can prevent the commutator segments from sliding out along the radial direction of the base body and ensure the normal operation of the commutator, the commutator segments are troublesome to disassemble and replace, which is not conducive to the maintenance of the commutator segments, increases the workload of workers, and reduces the work efficiency. The active gear drives the driven gear to rotate during the rotation process, prompting the threaded rod to drive the threaded tube to move, and then the positioning rod moves into or out of the positioning groove, which is convenient for positioning the commutator segments, facilitating the disassembly and installation of the commutator segments, reducing the maintenance burden of workers, and improving work efficiency.

[0008] Furthermore, a slider is fixedly connected to the inner wall of the commutator segment, and equidistantly arranged sliding grooves are provided inside the base body, and the outer surface of the slider is slidably connected to the base body through the sliding grooves.

[0009] Through the above solution, the commutator segments can be conveniently installed through the slider and the slide groove, and the commutator segments can be laterally limited.

[0010] Furthermore, the interior of the fixed plate is fixedly plugged with equidistantly arranged positioning rods, the interior of the commutator segment is provided with equidistantly arranged positioning grooves, and the outer circumferential surface of the positioning rod is slidably plugged with the commutator segment through the positioning grooves.

[0011] Through the above scheme, the commutator segments are positioned by the positioning rods and the positioning grooves, so as to avoid longitudinal sliding of the commutator segments, increase the stability of the commutator segments during operation, and facilitate the positioning and removal of the commutator segments.

[0012] Furthermore, the interior of the base is provided with equidistantly arranged limiting grooves, and the outer surface of the fixing plate is slidably connected to the base via the limiting grooves.

[0013] Through the above solution, the threaded tube is restricted to prevent the threaded tube from rotating along with the threaded rod, so that the fixing plate is always moved laterally.

[0014] Furthermore, a first limiting ring is fixedly sleeved on the outer circumferential surface of each threaded rod, and the outer circumferential surface of the first limiting ring is rotatably connected to the inside of the base.

[0015] Through the above solution, the threaded rod is restricted to prevent the threaded rod from sliding and deviating, thereby increasing the stability of the threaded rod movement.

[0016] Furthermore, a driven gear is fixedly sleeved on the outer circumferential surface of each threaded rod, a driving gear is fixedly sleeved on the outer circumferential surface of the control rod, and the driven gear is meshed with the driving gear.

[0017] Through the above solution, when the driving gear rotates, it is possible to drive multiple threaded rods to rotate simultaneously through the driven gear, thereby performing positioning operations on all the commutator segments at the same time.

[0018] Furthermore, a second limiting ring is fixedly sleeved on the outer circumferential surface of the control rod, and the outer circumferential surface of the second limiting ring is rotatably connected to the inside of the base.

[0019] Through the above solution, the control rod is restricted to prevent the control rod from sliding longitudinally, thereby increasing the stability of the control rod movement.

[0020] Furthermore, a hand wheel is fixedly sleeved on the outer circumferential surface of the control rod, and the outer circumferential surface of the hand wheel is provided with anti-skid grooves arranged at equal distances.

[0021] Through the above solution, it is convenient for workers to rotate the control rod through the hand wheel and prevent their hands from slipping, thus providing convenience for the workers.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The commutator drives the driven gear to rotate during the rotation of the driving gear, prompting the threaded rod to drive the threaded tube to move, thereby causing the positioning rod to move into or out of the positioning groove, thereby facilitating the positioning of the commutator segments, facilitating the removal and installation of the commutator segments, reducing the maintenance burden of workers, and improving work efficiency. The problem that the existing commutator can prevent the commutator segments from sliding out along the radial direction of the base body and ensure the normal operation of the commutator, but the commutator segments are more troublesome to remove and replace, is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall three-dimensional structure diagram of this application;

[0025] Figure 2 This is a three-dimensional assembly structure diagram for this application;

[0026] Figure 3 This is the base structure diagram for this application;

[0027] Figure 4 This is a diagram of the control rod structure for this application.

[0028] In the figure:

[0029] 1. Base; 2. Commutator; 3. Slider; 4. Slide; 5. Insulation strip; 6. Base; 7. Threaded rod; 8. Threaded tube; 9. Fixed plate; 10. Positioning rod; 11. Positioning groove; 12. Limiting groove; 13. First limiting ring; 14. Driven gear; 15. Control rod; 16. Driving gear; 17. Second limiting ring; 18. Handwheel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] See also Figure 1 , Figure 2 and Figure 3 A commutator in this embodiment includes a substrate 1, an outer circumferential surface of the substrate 1 is provided with commutator segments 2 arranged at equal intervals, the outer circumferential surface of the substrate 1 is fixedly connected with insulating strips 5 arranged at equal intervals, the outer surface of the commutator segment 2 contacts the outer surface of the insulating strip 5, the bottom surface of the substrate 1 is fixedly connected with a base 6, the inner part of the base 6 is rotatably plugged with threaded rods 7 arranged at equal intervals, the outer circumferential surface of each threaded rod 7 is threadedly connected with a threaded tube 8, the outer circumferential surface of the threaded tube 8 is fixedly connected with a fixing plate 9, and the inner part of the base 6 is rotatably plugged with a control rod 15.

[0032] See also Figure 1 and Figure 2 The inner wall of the commutator segment 2 is fixedly connected with a slider 3, and the interior of the base 1 is provided with equally spaced slide grooves 4. The outer surface of the slider 3 is slidably connected to the base 1 through the slide groove 4. The slider 3 and the slide groove 4 facilitate the installation of the commutator segment 2 and the lateral position limitation of the commutator segment 2.

[0033] See also Figure 2 , Figure 3 and Figure 4 The interior of the fixed plate 9 is fixedly plugged with equidistantly arranged positioning rods 10, and the interior of the commutator segment 2 is provided with equidistantly arranged positioning grooves 11. The outer circumferential surface of the positioning rod 10 is slidably plugged with the commutator segment 2 through the positioning groove 11. The commutator segment 2 is positioned by the positioning rod 10 and the positioning groove 11 to prevent the commutator segment 2 from sliding longitudinally, increase the stability of the commutator segment 2 during operation, and facilitate the positioning and disassembly of the commutator segment 2.

[0034] See also Figure 3 and Figure 4 The interior of the base 6 is provided with equally spaced limiting grooves 12, and the outer surface of the fixing plate 9 is slidably connected to the base 6 through the limiting grooves 12, which restricts the threaded tube 8 and prevents the threaded tube 8 from rotating with the threaded rod 7, so that the fixing plate 9 always moves horizontally.

[0035] See also Figure 3 and Figure 4The outer circumference of each threaded rod 7 is fixedly sleeved with a first limiting ring 13, and the outer circumference of the first limiting ring 13 is rotatably connected to the inside of the base 6 to limit the threaded rod 7, prevent the threaded rod 7 from sliding and deviating, and increase the stability of the threaded rod 7 movement.

[0036] See also Figure 3 and Figure 4 A driven gear 14 is fixedly sleeved on the outer circumference of each threaded rod 7, and a driving gear 16 is fixedly sleeved on the outer circumference of the control rod 15. The driven gear 14 is meshed with the driving gear 16, so that the driving gear 16 can drive multiple threaded rods 7 to rotate through the driven gear 14 when rotating, thereby positioning all the commutator segments 2 at the same time.

[0037] See also Figure 4 The outer circumference of the control rod 15 is fixedly sleeved with a second limiting ring 17, and the outer circumference of the second limiting ring 17 is rotatably connected to the inside of the base 6 to limit the control rod 15, prevent the control rod 15 from sliding longitudinally, and increase the stability of the movement of the control rod 15.

[0038] See also Figure 4 The outer circumference of the control rod 15 is fixedly sleeved with a hand wheel 18, and the outer circumference of the hand wheel 18 is provided with equidistantly arranged anti-skid grooves, which facilitates workers to rotate the control rod 15 through the hand wheel 18 and prevents hand slipping, providing convenience for workers.

[0039] A commutator in the present embodiment drives the driven gear 14 to rotate during the rotation of the driving gear 16, prompting the threaded rod 7 to drive the threaded tube 8 to move, and then the positioning rod 10 moves into or out of the positioning groove 11, so as to facilitate the positioning of the commutator segment 2, facilitate the disassembly and installation of the commutator segment 2, reduce the maintenance burden of workers, and improve work efficiency. It solves the problem that although the existing commutator can prevent the commutator segment 2 from sliding out radially along the base 1 and ensure the normal operation of the commutator, the commutator segment 2 is more troublesome to disassemble and replace.

[0040] It should be noted that the slider 3 and the slide groove 4 are isosceles trapezoidal in shape, so that the slider 3 can only slide longitudinally inside the slide groove 4, thereby preventing the commutator segment 2 from moving laterally during operation.

[0041] The working principle of the above embodiment is:

[0042] When it is necessary to disassemble and replace the commutator segments 2 of the commutator, the control rod 15 and the driving gear 16 are rotated by the hand wheel 18. The driving gear 16 drives the threaded rod 7 to rotate through the driven gear 14. The threaded rod 7 drives the fixing plate 9 to move through the threaded tube 8. The fixing plate 9 then drives the positioning rod 10 to move out from the inside of the positioning groove 11, and the positioning restriction on all commutator segments 2 is cancelled. At this time, the commutator segment 2 to be replaced can be directly removed from the base 1, and then a new commutator segment 2 is replaced. The hand wheel 18 is rotated in the opposite direction to cause the threaded rod 7 to rotate and drive the threaded tube 8 to move back. Then the fixing plate 9 drives the positioning rod 10 to move into the commutator segment 2 to position all the commutator segments 2.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A commutator, comprising a substrate (1), characterized in that: The outer circumferential surface of the base body (1) is provided with commutator segments (2) arranged at equal intervals, the outer circumferential surface of the base body (1) is fixedly connected to insulating strips (5) arranged at equal intervals, the outer surface of the commutator segments (2) contacts the outer surface of the insulating strips (5), the bottom surface of the base body (1) is fixedly connected to a base (6), the inside of the base (6) is rotatably plugged with threaded rods (7) arranged at equal intervals, the outer circumferential surface of each threaded rod (7) is threadedly connected to a threaded tube (8), the outer circumferential surface of the threaded tube (8) is fixedly connected to a fixing plate (9), and the inside of the base (6) is rotatably plugged with a control rod (15).

2. A commutator according to claim 1, characterized in that: The inner wall of the commutator segment (2) is fixedly connected with a slider (3), the interior of the base body (1) is provided with equidistantly arranged slider grooves (4), and the outer surface of the slider (3) is slidably connected to the base body (1) via the slider grooves (4).

3. A commutator according to claim 1, characterized in that: The interior of the fixed plate (9) is fixedly plugged with equidistantly arranged positioning rods (10), the interior of the commutator segment (2) is provided with equidistantly arranged positioning grooves (11), and the outer circumferential surface of the positioning rod (10) is slidably plugged with the commutator segment (2) via the positioning grooves (11).

4. A commutator according to claim 1, characterized in that: The base (6) is provided with equidistantly arranged limiting grooves (12) inside, and the outer surface of the fixing plate (9) is slidably connected to the base (6) via the limiting grooves (12).

5. A commutator according to claim 1, characterized in that: A first limiting ring (13) is fixedly sleeved on the outer circumferential surface of each threaded rod (7), and the outer circumferential surface of the first limiting ring (13) is rotatably connected to the inside of the base (6).

6. A commutator according to claim 1, characterized in that: A driven gear (14) is fixedly sleeved on the outer circumferential surface of each threaded rod (7), a driving gear (16) is fixedly sleeved on the outer circumferential surface of the control rod (15), and the driven gear (14) is meshed with the driving gear (16).

7. A commutator according to claim 1, characterized in that: A second limiting ring (17) is fixedly sleeved on the outer circumferential surface of the control rod (15), and the outer circumferential surface of the second limiting ring (17) is rotatably connected to the inside of the base (6).

8. A commutator according to claim 1, characterized in that: A hand wheel (18) is fixedly sleeved on the outer circumferential surface of the control rod (15), and the outer circumferential surface of the hand wheel (18) is provided with anti-slip grooves arranged at equal intervals.

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