Wear-resistant and corrosion-resistant commutator

Abstract

The utility model discloses a wear-resistant and corrosion-resistant commutator in the technical field of commutators, which comprises a spiral outer ring, a commutator segment fixedly connected to the bottom of the spiral outer ring, a base fixedly connected to the bottom of the commutator segment, a limiting groove arranged in an inner cavity of the spiral outer ring, and mica tooth grooves arranged around the spiral outer ring. According to the utility model, through the cooperation of the spiral outer ring, the commutator segment, the pedestal, the mica tooth grooves and the commutator tooth grooves, a commutator device is constructed, the commutator can be fixedly installed on a motor through the threaded ring, and the commutator can be installed on the motor through the guide ring. And through the arrangement of the insulating coating mechanism, when the motor leaks electricity during working, the damage to people caused by electrical conduction can be prevented, the working safety is ensured, the heat dissipation through holes are added to prevent the coating from falling off caused by overheating of the commutator, the wear resistance and corrosion resistance of the commutator can be ensured, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of commutators, in particular to a wear-resistant and corrosion-resistant commutator. Background Art

[0002] An important part of the armature of DC motors and AC commutator motors. It plays a commutation role when the motor rotates. It is a component on DC motors and AC series motors that commutates the current and allows the motor to continue to rotate. It is commonly known as a commutator. As an important and basic equipment that is indispensable in industry, transportation, national defense and daily life, its downstream industries include almost all basic industries of the national economy. As one of the core components of the motor, the commutator is also growing with the development of the motor industry.

[0003] The original one was assembled plastic, which resulted in low structural strength and easy damage after a period of use. In addition, the electrode brush and the electrode ring of the previous commutator needed to be rubbed repeatedly. After a long period of use, the electrode brush and the electrode ring would be worn out by friction, which also required frequent maintenance and care of the parts of the equipment, wasting a lot of manpower. Therefore, those skilled in the art provided a wear-resistant and corrosion-resistant commutator. Utility Model Content

[0004] The purpose of the utility model is to provide a wear-resistant and corrosion-resistant commutator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant and corrosion-resistant commutator, comprising a spiral outer ring, a commutator segment is fixedly connected to the bottom of the spiral outer ring, a base is fixedly connected to the bottom of the commutator segment, a limiting groove is provided in the inner cavity of the spiral outer ring, mica grooves are provided around the spiral outer ring, commutator segments are provided around the commutator segment, a guide ring is provided in the inner cavity of the limiting groove, a threaded ring is provided on the surface of the base, and an insulating coating mechanism is provided inside the base.

[0006] As a further solution of the utility model: the insulating coating mechanism includes an insulating layer, a wear-resistant layer is provided on the side of the insulating layer away from the base, a corrosion-resistant layer is provided on the side of the wear-resistant layer away from the insulating layer, an anti-oxidation layer is provided on the side of the corrosion-resistant layer away from the wear-resistant layer, and a high-temperature resistant layer is provided on the side of the anti-oxidation layer away from the corrosion-resistant layer.

[0007] As a further solution of the utility model: a heat dissipation hole is opened on the top of the spiral outer ring, and the bottom of the heat dissipation hole passes through the spiral outer ring, the commutator segment and the base and extends to the bottom of the base. The number of the heat dissipation holes is not less than eight.

[0008] As a further solution of the utility model: the commutation tooth grooves are evenly distributed around the commutation segment and have consistent specifications and sizes.

[0009] As a further solution of the utility model: the mica teeth are evenly distributed around the spiral outer ring and have the same specifications and sizes.

[0010] As a further solution of the utility model: the thickness of the insulating layer is greater than the thickness of the wear-resistant layer, and the thickness of the insulating layer is 1CM.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, a commutator device is constructed by the cooperation of the spiral outer ring, the commutator segments, the base, the mica tooth grooves and the commutator tooth grooves, wherein the commutator can be fixedly mounted on the motor through the threaded ring, and then the insulating coating mechanism is set to prevent the harm caused by electrical conduction to people when the motor leaks electricity during work, thereby ensuring the safety of work. At the same time, the spraying of corrosion-resistant materials can ensure the corrosion resistance of the commutator and improve its service life.

[0013] 2. In the utility model, through the arrangement of the insulating layer, the wear-resistant layer, the corrosion-resistant layer, the anti-oxidation layer and the high-temperature resistant layer, the insulating layer can prevent the harm to people caused by electrical conduction when the motor leaks electricity during operation, the wear-resistant layer can ensure the wear resistance of the commutator and will not be scratched during use, thereby ensuring the safety of work, the corrosion-resistant layer and the anti-oxidation layer ensure the corrosion resistance and oxidation resistance of the commutator, and the high-temperature resistant layer can protect the commutator when the commutator rubs; through the arrangement of the heat dissipation through-holes, the heat generated inside the commutator can be better dissipated; through the arrangement of the commutation tooth grooves, the use efficiency can be improved, and through the arrangement of the mica tooth grooves, it can be better used in conjunction with the motor. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a top view of the structure in the utility model;

[0016] Figure 3 It is a front view of the structure in the utility model;

[0017] Figure 4 It is a top view of the base structure in the utility model;

[0018] Figure 5 It is a schematic diagram of the coating structure in the utility model.

[0019] In the figure: 1. spiral outer ring; 2. commutator segment; 3. base; 4. mica tooth groove; 5. commutator tooth groove; 6. limit groove; 7. heat dissipation hole; 8. threaded ring; 9. guide ring; 10. insulation coating mechanism; 101. insulation layer; 102. wear-resistant layer; 103. corrosion-resistant layer; 104. anti-oxidation layer; 105. high temperature resistant layer. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 5 In the embodiment of the utility model, a wear-resistant and corrosion-resistant commutator comprises a spiral outer ring 1, a commutator segment 2 is fixedly connected to the bottom of the spiral outer ring 1, a base 3 is fixedly connected to the bottom of the commutator segment 2, a limiting groove 6 is provided in the inner cavity of the spiral outer ring 1, mica tooth grooves 4 are provided around the spiral outer ring 1, commutator segment 2 is provided around commutator tooth grooves 5, a guide ring 9 is provided in the inner cavity of the limiting groove 6, a threaded ring 8 is provided on the surface of the base 3, and an insulating coating mechanism 10 is provided inside the base 3. A commutator device is jointly constructed by the cooperation of the spiral outer ring 1, the commutator segment 2, the base 3, the mica tooth grooves 4 and the commutator tooth grooves 5, wherein the commutator can be fixedly installed on the motor through the threaded ring 8, and then through the setting of the insulating coating mechanism 10, when the motor leaks electricity during work, the damage caused to people by electrical conduction can be prevented, thereby ensuring the safety of work. At the same time, the spraying of corrosion-resistant materials can ensure the corrosion resistance of the commutator and improve the service life.

[0022] Among them, the insulating coating mechanism 10 includes an insulating layer 101, a wear-resistant layer 102 is arranged on the side of the insulating layer 101 away from the base 3, a corrosion-resistant layer 103 is arranged on the side of the wear-resistant layer 102 away from the insulating layer 101, an anti-oxidation layer 104 is arranged on the side of the corrosion-resistant layer 103 away from the wear-resistant layer 102, and a high-temperature resistant layer 105 is arranged on the side of the anti-oxidation layer 104 away from the corrosion-resistant layer 103; through the arrangement of the insulating layer 101, the wear-resistant layer 102, the corrosion-resistant layer 103, the anti-oxidation layer 104 and the high-temperature resistant layer 105, the insulating layer 101 can prevent the harm to people caused by electrical conduction when the motor leaks during work, the wear-resistant layer 102 can ensure the wear resistance of the commutator and will not be scratched during use, thereby ensuring the safety of work, the corrosion-resistant layer 103 and the anti-oxidation layer 104 ensure the corrosion resistance and oxidation resistance of the commutator, and the high-temperature resistant layer 105 can protect the commutator when the commutator rubs.

[0023] Among them, a heat dissipation hole 7 is opened at the top of the spiral outer ring 1, and the bottom of the heat dissipation hole 7 passes through the spiral outer ring 1, the commutator segment 2 and the base 3 and extends to the bottom of the base 3. The number of the heat dissipation holes 7 is not less than eight; through the setting of the heat dissipation holes 7, the heat generated inside the commutator can be better dissipated.

[0024] The commutation tooth grooves 5 are evenly distributed around the commutation segment 2 and have the same size. The use efficiency can be improved by setting the commutation tooth grooves 5.

[0025] The mica teeth 4 are evenly distributed around the spiral outer ring 1 and have the same size. The arrangement of the mica teeth 4 enables better coordination with the motor.

[0026] The thickness of the insulating layer 101 is greater than the thickness of the wear-resistant layer 102 , and the thickness of the insulating layer 101 is 1 cm.

[0027] The working principle of the utility model is: the commutator body can be fixedly installed on the motor through the threaded ring 8 of the base 3, and the commutator is die-cast, which changes the material of the original assembled plastic. This design greatly reduces the production cost of the commutator, and the commutator body is made of aluminum alloy material, which has high structural strength and stable chemical properties. It can still maintain good performance after being used for a period of time and will not be easily damaged. The insulating layer 101 is a polyimide material, which has a certain high temperature resistance and can increase the service life. When the motor leaks electricity during work, it can prevent the harm caused by electrical conduction to people. The wear-resistant layer 102 is a glass fiber material. The wear resistance of the commutator can be guaranteed, and it will not be scratched during use, thereby ensuring the safety of work. The setting of the corrosion-resistant layer 103 and the anti-oxidation layer 104, wherein the corrosion-resistant layer 103 is made of polyurethane material and the anti-oxidation layer 104 is made of polytetrachloroethylene material, can ensure the corrosion resistance and oxidation resistance of the commutator. The high-temperature resistant layer 105 is made of ceramic fiber material, which can protect the commutator when the commutator is rubbed to avoid damage to the commutator due to high temperature; then, through the setting of the heat dissipation through-hole 7, the heat generated inside the commutator can be better dissipated, thereby ensuring the safety of work. At the same time, the spraying of the corrosion-resistant material can ensure the corrosion resistance of the commutator and improve the service life.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wear-resistant and corrosion-resistant commutator, comprising a spiral outer ring (1), characterized in that: The bottom of the spiral outer ring (1) is fixedly connected to a commutator segment (2), the bottom of the commutator segment (2) is fixedly connected to a base (3), the inner cavity of the spiral outer ring (1) is provided with a limiting groove (6), the spiral outer ring (1) is provided with mica tooth grooves (4) on all sides, the commutator segment (2) is provided with commutator tooth grooves (5) on all sides, the inner cavity of the limiting groove (6) is provided with a guide ring (9), the surface of the base (3) is provided with a threaded ring (8), and the interior of the base (3) is provided with an insulating coating mechanism (10), the insulating coating mechanism (10) comprises an insulating layer (101), and the insulating layer (101) is away from the bottom. A wear-resistant layer (102) is provided on one side of the seat (3), a corrosion-resistant layer (103) is provided on the side of the wear-resistant layer (102) away from the insulating layer (101), an oxidation-resistant layer (104) is provided on the side of the corrosion-resistant layer (103) away from the wear-resistant layer (102), and a high-temperature-resistant layer (105) is provided on the side of the oxidation-resistant layer (104) away from the corrosion-resistant layer (103). A heat dissipation through hole (7) is provided on the top of the spiral outer ring (1), and the bottom of the heat dissipation through hole (7) penetrates the spiral outer ring (1), the commutator segment (2) and the seat (3) and extends to the bottom of the seat (3). The number of the heat dissipation through holes (7) is not less than eight.

2. A wear-resistant and corrosion-resistant commutator according to claim 1, characterized in that: The commutation tooth grooves (5) are evenly distributed around the commutation segment (2) and have uniform specifications and sizes.

3. A wear-resistant and corrosion-resistant commutator according to claim 1, characterized in that: The mica tooth grooves (4) are evenly distributed around the spiral outer ring (1) and have the same specifications and sizes.

4. A wear-resistant and corrosion-resistant commutator according to claim 1, characterized in that: The thickness of the insulating layer (101) is greater than the thickness of the wear-resistant layer (102), and the thickness of the insulating layer (101) is 1 cm.

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