Asynchronous motor lifting brush type collector ring device

Abstract

The utility model relates to an asynchronous motor lifting brush type collector ring device comprising a sleeve, the outer surface of the sleeve is provided with a plurality of conducting rings, two ends of the sleeve are respectively and rotatably provided with a first side plate and a second side plate, and four mounting rods are coaxially arranged between the first side plate and the second side plate in an array manner. A plurality of mounting mechanisms are arranged on the outer surface of the mounting rod, the plurality of mounting mechanisms are in one-to-one correspondence with the plurality of conductive rings, two L-shaped rods are rotatably mounted on the outer surface of each mounting mechanism, and carbon brushes are mounted at the ends of the L-shaped rods. Through the arrangement of the four groups of carbon brushes and the four driving mechanisms, the purpose that the four groups of carbon brushes are used in turn can be achieved, the problem that abrasion is aggravated due to long-time continuous use of the carbon brushes is avoided, the service life of the carbon brushes is prolonged, and when the carbon brushes are abraded and need to be replaced, the other group of carbon brushes can be switched to be continuously used, so that the replacement frequency of the carbon brushes can be reduced, and the cost is reduced. The workload of workers and the downtime of equipment are reduced, and the production efficiency and the usability of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of collector rings, in particular to a brush-lifting collector ring device for an asynchronous motor. Background Art

[0002] A slip ring is a device used in electrical equipment, mainly used to transfer electrical energy or signals from a stationary part to a rotating part. It consists of a rotating metal ring and a fixed brush, which transmits current through contact with the slip ring. It is widely used in equipment such as motors, generators and wind turbines.

[0003] When the rotor inside the motor rotates, the collector ring also rotates, and the friction between the carbon brush and the collector ring creates an electrical connection, thereby realizing the transmission of electricity. However, the friction between the carbon brush and the collector ring will cause the carbon brush to gradually wear out, thereby reducing the service life of the carbon brush. The carbon brush needs to be replaced frequently. Frequent replacement not only increases the workload of workers, but also requires shutdown for maintenance when replacing carbon brushes, which in turn affects production efficiency and equipment availability. Utility Model Content

[0004] The utility model aims to provide an asynchronous motor brush-lifting collector ring device which can reduce the replacement frequency of carbon brushes, the workload of workers and the downtime of equipment.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0006] A brush-lifting collector ring device for an asynchronous motor comprises a sleeve, a plurality of conductive rings are arranged on the outer surface of the sleeve, a first side plate and a second side plate are rotatably mounted on both ends of the sleeve respectively, four mounting rods are coaxially arrayed between the first side plate and the second side plate, a plurality of mounting mechanisms are arranged on the outer surface of the mounting rods, and the plurality of mounting mechanisms correspond one-to-one to the plurality of conductive rings, two L-shaped rods are rotatably mounted on the outer surface of the mounting mechanisms, carbon brushes are mounted on the ends of the L-shaped rods, a vertical plate is arranged on the outer surface of the mounting mechanisms, a tension spring is connected between the L-shaped rods and the vertical plate, four groups of rotating shafts are rotatably connected on the coaxial array between the first side plate and the second side plate, each group of rotating shafts comprises two rotating shafts and are respectively arranged on both sides of the mounting rod, a plurality of shifting blocks are arranged on the outer surface of the rotating shafts, and the plurality of shifting blocks correspond one-to-one to the plurality of L-shaped rods, and a driving mechanism capable of driving the two rotating shafts to rotate simultaneously is arranged on the outer side of the first side plate.

[0007] It can be seen that by setting up four groups of carbon brushes and four driving mechanisms, the purpose of using the four groups of carbon brushes in turn can be achieved, avoiding the problem of increased wear of the carbon brushes due to long-term continuous use, and increasing their service life. When the carbon brushes are worn and need to be replaced, they can be switched to another group of carbon brushes for continued use. Therefore, the frequency of replacing the carbon brushes can be reduced, the workload of workers and equipment downtime can be reduced, and production efficiency and equipment availability can be improved.

[0008] Furthermore, the mounting mechanism includes an upper jacket, a lower jacket and bolts. The upper jacket and the lower jacket are mounted on the outside of the mounting rod by bolts, and the L-shaped rod and the vertical plate are both mounted on the outer surface of the lower jacket.

[0009] When replacing the carbon brush, the bolts can be unscrewed, and then the upper jacket and the lower jacket can be separated, so that the carbon brush can be removed. When installing the carbon brush, the upper jacket and the lower jacket can be respectively sleeved on the outer surface of the mounting rod, and then they are connected together with bolts to complete the replacement of the carbon brush.

[0010] Furthermore, the driving mechanism includes a first side block installed on the outer surface of the first side plate, a motor is installed on the outer surface of the first side block, the end of the motor output shaft is connected to a connecting shaft, two first bevel gears are installed on the outer surface of the connecting shaft, the end of the rotating shaft passes through the outer side of the first side plate and is installed with a second bevel gear, and the second bevel gear is meshingly connected with the first bevel gear.

[0011] When the motor is started, its output shaft drives the connecting shaft to rotate, and the connecting shaft drives the two first bevel gears on its surface to rotate. Since the first bevel gear and the second bevel gear are meshed with each other, they can drive the two rotating shafts to rotate and drive the shifting block on its surface to flip, and shift the L-shaped rod upward to separate the carbon brush from the conductive ring. When the rotating shaft rotation angle exceeds a certain amplitude, the shifting block can be separated from the L-shaped rod, so that the elastic force of the tension spring can make the carbon brush contact with the conductive ring again. Therefore, when switching the carbon brush, the carbon brush to be switched is first brought into contact with the conductive ring through the driving mechanism, and then the carbon brush to be switched is separated from the conductive ring.

[0012] Furthermore, four through slots are coaxially arranged on the surfaces of the second side plate and the first side plate, an abutment block is installed at one end of the mounting rod in the length direction, and a nut is threadedly connected at the other end of the mounting rod in the length direction.

[0013] By providing the through slots, the abutment blocks and the nuts, when installing the mounting rod, it can be clamped in the two through slots, and then the nuts are screwed in so that the abutment blocks are pressed against the outer surface of the second side plate.

[0014] Furthermore, a controller is disposed on the outer surface of the first side plate, and the controller is electrically connected to the motor.

[0015] Through the setting of the controller, it is convenient to uniformly control the four motors and flexibly switch the carbon brushes.

[0016] Furthermore, positioning grooves are provided on both the upper and lower side surfaces of the mounting rod, and positioning blocks are installed on the inner side surfaces of the upper jacket and the lower jacket, and the positioning blocks are matched with the positioning grooves.

[0017] By setting the positioning groove and the positioning block, the position and angle of the carbon brush can be positioned when the carbon brush is installed through the installation mechanism, which not only improves the installation speed, but also makes all the carbon brushes on the installation rod at the same angle, resulting in better effect.

[0018] Furthermore, four second side blocks (3011) are installed on the outer surface of the first side plate, and the end of the connecting shaft is rotatably connected to the second side block (3011).

[0019] By setting the second side block (3011), support can be provided for the other end of the connecting shaft, making it more stable and smooth when rotating.

[0020] Furthermore, the two first bevel gears on the connecting shaft are arranged on the inner sides of the two second bevel gears meshing therewith.

[0021] Since the two second bevel gears are located on the inner side, when the motor drives the connecting shaft to rotate, the two rotating shafts can rotate in opposite directions, so that the shifting block can shift the L-shaped rod upward to separate the carbon brush from the conductive ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model;

[0023] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 3 It is a partial structural schematic diagram of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the driving mechanism in the utility model;

[0026] Figure 5 It is a structural schematic diagram of the rotating shaft of the utility model;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the mounting rod in the utility model.

[0028] In the figure: 100, sleeve; 101, conductive ring; 102, first side plate; 103, mounting rod; 104, L-shaped rod; 105, vertical plate; 106, carbon brush; 107, tension spring; 108, rotating shaft; 109, shift block; 110, second side plate; 200, mounting mechanism; 201, upper jacket; 202, lower jacket; 203, bolt; 300, driving mechanism; 301, first side block; 3011, second side block; 302, connecting shaft; 303, first bevel gear; 304, second bevel gear; 305, motor; 400, through groove; 401, abutment block; 402, nut; 500, controller; 600, positioning groove; 601, positioning block. DETAILED DESCRIPTION

[0029] The utility model is described in detail below with reference to the accompanying drawings.

[0030] like Figure 1-6 As shown, an asynchronous motor brush-type collector ring device includes a sleeve 100, a plurality of conductive rings 101 are arranged on the outer surface of the sleeve 100, a first side plate 102 and a second side plate 110 are rotatably mounted on both ends of the sleeve 100, four mounting rods 103 are arranged in a coaxial array between the first side plate 102 and the second side plate 110, a plurality of mounting mechanisms 200 are arranged on the outer surface of the mounting rod 103, and the plurality of mounting mechanisms 200 correspond to the plurality of conductive rings 101 one by one, two L-shaped rods 104 are rotatably mounted on the outer surface of the mounting mechanism 200, and the ends of the L-shaped rods 104 are mounted There are carbon brushes 106, and a vertical plate 105 is installed on the outer surface of the mounting mechanism 200. A tension spring 107 is connected between the L-shaped rod 104 and the vertical plate 105. Four groups of rotating shafts 108 are connected in a coaxial array between the first side plate 102 and the second side plate 110. Each group of rotating shafts 108 includes two rotating shafts 108 and are respectively arranged on both sides of the mounting rod 103. A plurality of shift blocks 109 are installed on the outer surface of the rotating shaft 108, and the plurality of shift blocks 109 correspond one by one to the plurality of L-shaped rods 104. A driving mechanism 300 that can drive the two rotating shafts 108 to rotate simultaneously is arranged on the outer side of the first side plate 102.

[0031] When in use, the first side plate 102 and the second side plate 110 are installed. Since the sleeve 100 is rotatably connected with the first side plate 102 and the second side plate 110, when the sleeve 100 rotates, the carbon brush 106 is in a stationary state. Through the elastic force of the tension spring 107, the L-shaped rod 104 can be pulled to drive the carbon brush 106 to contact the conductive ring 101 to achieve power transmission. When the driving mechanism 300 drives the two rotating shafts 108 to rotate, the shifting block 109 on the surface thereof can be driven to shift the L-shaped rod 104 upward, thereby enabling the carbon brush 106 to be in a stationary state. The brush 106 is separated from the surface of the conductive ring 101. Therefore, by setting up four groups of carbon brushes 106 and four driving mechanisms 300, the purpose of using the four groups of carbon brushes 106 in turn can be achieved, avoiding the problem of increased wear of the carbon brushes 106 due to long-term continuous use, and increasing its service life. When the carbon brush 106 is worn and needs to be replaced, it can be switched to another group of carbon brushes 106 for continued use. Therefore, the replacement frequency of the carbon brush 106 can be reduced, the workload of workers and equipment downtime can be reduced, and production efficiency and equipment availability can be improved.

[0032] Specifically, the installation mechanism 200 includes an upper jacket 201, a lower jacket 202, and a bolt 203. The upper jacket 201 and the lower jacket 202 are installed on the outer side of the installation rod 103 through the bolt 203, and both the L-shaped rod 104 and the vertical plate 105 are installed on the outer surface of the lower jacket 202. When replacing the carbon brush 106, the bolt 203 can be unscrewed, and then the upper jacket 201 and the lower jacket 202 can be separated, so that the carbon brush 106 can be removed. When installing the carbon brush 106, the upper jacket 201 and the lower jacket 202 can be respectively sleeved on the outer surface of the installation rod 103, and then they are connected together by the bolt 203, that is, the replacement of the carbon brush 106 is completed.

[0033] Specifically, the driving mechanism 300 includes a first side block 301 installed on the outer surface of the first side plate 102. A motor 305 is installed on the outer surface of the first side block 301. The end of the output shaft of the motor 305 is connected to a connecting shaft 302. Two first bevel gears 303 are installed on the outer surface of the connecting shaft 302. The end of the rotating shaft 108 penetrates to the outside of the first side plate 102 and is installed with a second bevel gear 304, and the second bevel gear 304 is meshed with the first bevel gear 303. When the motor 305 is started, its output shaft drives the connecting shaft 302 to rotate. The connecting shaft 302 drives the two first bevel gears 303 on its surface to rotate. Since the first bevel gear 303 and the second bevel gear 304 are meshed with each other, the two rotating shafts 108 can be driven to rotate, and the dial block 109 on their surface can be driven to flip, so as to push the L-shaped rod 104 upward and separate the carbon brush 106 from the conductive ring 101. When the rotating shaft 108 rotates by an angle exceeding a certain amplitude, the dial block 109 can be separated from the L-shaped rod 104. Therefore, under the elastic force of the tension spring 107, the carbon brush 106 can be brought into contact with the conductive ring 101 again. Therefore, when switching the carbon brush 106, first bring the carbon brush 106 to be switched into contact with the conductive ring 101 through the driving mechanism 300, and then separate the carbon brush 106 to be switched from the conductive ring 101.

[0034] Specifically, four through grooves 400 are coaxially and arrayedly opened on the surfaces of the second side plate 110 and the first side plate 102. An abutting block 401 is installed at one end of the installation rod 103 in the length direction, and a nut 402 is threadedly connected to the other end of the installation rod 103 in the length direction. Through the settings of the through groove 400, the abutting block 401, and the nut 402, when installing the installation rod 103, it can be clamped in the two through grooves 400, and then the nut 402 is screwed in so that the abutting block 401 abuts tightly against the outer surface of the second side plate 110.

[0035] Specifically, a controller 500 is arranged on the outer surface of the first side plate 102. The controller 500 is electrically connected to the motor 305. Through the setting of the controller 500, it is convenient to uniformly control the four motors 305 and facilitate the flexible switching of the carbon brush 106.

[0036] Specifically, positioning grooves 600 are provided on the upper and lower side surfaces of the mounting rod 103, and positioning blocks 601 are installed on the inner sides of the upper jacket 201 and the lower jacket 202, and the positioning blocks 601 are adapted to the positioning grooves 600. By setting the positioning grooves 600 and the positioning blocks 601, the position and angle of the carbon brush 106 can be positioned when it is installed through the mounting mechanism 200, which not only improves the installation speed, but also makes all the carbon brushes 106 on the mounting rod 103 at the same angle, resulting in better effect.

[0037] Specifically, four second side blocks 3011 are installed on the outer surface of the first side plate 102, and the end of the connecting shaft 302 is rotatably connected to the second side block 3011. Through the setting of the second side block 3011, support can be provided for the other end of the connecting shaft 302, making it more stable and smooth when rotating.

[0038] Specifically, the two first bevel gears 303 on the connecting shaft 302 are arranged on the inner side of the two second bevel gears 304 meshing therewith. Since the two second bevel gears 304 are on the inner side, when the motor 305 drives the connecting shaft 302 to rotate, the two rotating shafts 108 can rotate in the opposite direction, so that the shifting block 109 can shift the L-shaped rod 104 upward to separate the carbon brush 106 from the conductive ring 101.

[0039] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the utility model are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the utility model, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A brush-type collector ring device for an asynchronous motor, comprising a sleeve (100), characterized in that: The outer surface of the sleeve (100) is provided with a plurality of conductive rings (101); a first side plate (102) and a second side plate (110) are rotatably mounted on both ends of the sleeve (100); four mounting rods (103) are coaxially arrayed between the first side plate (102) and the second side plate (110); a plurality of mounting mechanisms (200) are provided on the outer surface of the mounting rod (103); and the plurality of mounting mechanisms (200) correspond one-to-one to the plurality of conductive rings (101); two L-shaped rods (104) are rotatably mounted on the outer surface of the mounting mechanism (200); a carbon brush (106) is mounted on the end of the L-shaped rod (104); A vertical plate (105) is installed on the outer surface, a tension spring (107) is connected between the L-shaped rod (104) and the vertical plate (105), four groups of rotating shafts (108) are connected in a coaxial array between the first side plate (102) and the second side plate (110), each group of the rotating shafts (108) includes two rotating shafts (108) and are respectively arranged on both sides of the installation rod (103), a plurality of shifting blocks (109) are installed on the outer surface of the rotating shaft (108), and the plurality of shifting blocks (109) correspond to the plurality of L-shaped rods (104) one by one, and a driving mechanism (300) capable of driving the two rotating shafts (108) to rotate simultaneously is arranged on the outer side of the first side plate (102).

2. The brush-type collector ring device for an asynchronous motor according to claim 1, characterized in that: The mounting mechanism (200) comprises an upper jacket (201), a lower jacket (202) and bolts (203); the upper jacket (201) and the lower jacket (202) are mounted on the outside of the mounting rod (103) via the bolts (203), and the L-shaped rod (104) and the vertical plate (105) are both mounted on the outer surface of the lower jacket (202).

3. The brush-type collector ring device for an asynchronous motor according to claim 2, characterized in that: The driving mechanism (300) comprises a first side block (301) mounted on the outer surface of the first side plate (102); a motor (305) is mounted on the outer surface of the first side block (301); the end of the output shaft of the motor (305) is connected to a connecting shaft (302); two first bevel gears (303) are mounted on the outer surface of the connecting shaft (302); the end of the rotating shaft (108) passes through the outer side of the first side plate (102) and is mounted with a second bevel gear (304); and the second bevel gear (304) is meshingly connected with the first bevel gear (303).

4. The brush-type collector ring device for an asynchronous motor according to claim 3, characterized in that: The surfaces of the second side plate (110) and the first side plate (102) are both provided with four through slots (400) in a coaxial array, an abutment block (401) is installed at one end of the mounting rod (103) in the length direction, and a nut (402) is threadedly connected to the other end of the mounting rod (103) in the length direction.

5. The brush-type collector ring device for an asynchronous motor according to claim 4, characterized in that: A controller (500) is provided on the outer surface of the first side plate (102), and the controller (500) is electrically connected to the motor (305).

6. The brush-type collector ring device for an asynchronous motor according to claim 5, characterized in that: The upper and lower side surfaces of the mounting rod (103) are both provided with positioning grooves (600), and the inner side surfaces of the upper jacket (201) and the lower jacket (202) are both provided with positioning blocks (601), and the positioning blocks (601) are adapted to the positioning grooves (600).

7. The brush-type collector ring device for an asynchronous motor according to claim 5, characterized in that: Four second side blocks (3011) are mounted on the outer surface of the first side plate (102), and the end of the connecting shaft (302) is rotatably connected to the second side blocks (3011).

8. The brush-type collector ring device for an asynchronous motor according to claim 5, characterized in that: The two first bevel gears (303) on the connecting shaft (302) are arranged on the inner sides of the two second bevel gears (304) meshing therewith.

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