Double-speed double-winding structure of high-power asynchronous motor

Abstract

The utility model discloses a double-speed double-winding structure of a high-power asynchronous motor, and relates to the technical field of double-voltage winding structures. The motor comprises a motor body, the bottom end of the motor body is fixedly connected with a base, the side end of the base is fixedly connected with a side plate, the side plate is located at one end of the output end of the motor body, and vertical cylinders are symmetrically and fixedly connected to the positions, close to the center, of the top end of the side plate. Automatic telescopic winding rolls are symmetrically and fixedly connected to the top ends of the side plates and located in the vertical cylinder, and a wire outlet hole is formed in the position, close to the center, of the top end of the vertical cylinder. According to the utility model, the sliding shaft is pulled, and then the clamping plate I, the clamping plate II, the wire outlet hole, the automatic telescopic winding roll and the spring are matched with one another, so that the problems that a single-coil winding structure only has one voltage structure, and terminal interfaces with different voltages cannot be selectively connected according to a power supply when the motor is connected with the power supply; and the phenomenon that two power lines are intertwined is easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of dual-voltage winding group structures, in particular to a high-power asynchronous motor dual-speed dual-winding structure. Background Art

[0002] Asynchronous motor, also known as induction motor, is an AC motor that generates electromagnetic torque by the interaction between the air gap rotating magnetic field and the rotor winding induced current, thereby realizing the conversion of electromechanical energy into mechanical energy. Three-phase asynchronous motors are mainly used as motors to drive various production machinery, such as fans, pumps, compressors, machine tools, light industry and mining machinery, threshers and crushers in agricultural production, processing machinery for agricultural and sideline products, etc. It has simple structure, easy manufacturing, low price, reliable operation, durability, high operating efficiency and applicable working characteristics;

[0003] The single-coil winding structure in the previous motor only has one voltage structure, so when the motor is connected to the power supply, it cannot select the terminal interface of different voltages according to the power supply, and it is easy for the two power lines to be entangled with each other. At the same time, a self-heating mechanism is generally provided in the dual-winding motor, and the rotor drives the fan blades to rotate to achieve the purpose of heat dissipation. However, this mechanism will accumulate a lot of dust on the fan blades after long-term use, and the heat dissipation fan blades on the existing brushless motor are not convenient to disassemble and replace, so they cannot be cleaned quickly. In view of the above problems, the inventor proposes a high-power asynchronous motor with a dual-speed dual-winding structure to solve the above problems. Utility Model Content

[0004] In order to solve the problems that a single-coil winding structure has only one voltage structure, so that when the motor is connected to the power supply, the terminal interface of different voltages cannot be connected according to the power supply selection, and the two power lines are easily entangled with each other, and the heat dissipation fan blades on the existing brushless motor are not convenient to disassemble and replace, making it impossible to clean quickly; the purpose of the utility model is to provide a high-power asynchronous motor with a dual-speed dual-winding structure.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a high-power asynchronous motor dual-speed dual-winding structure, including a motor body, a base fixedly connected to the bottom end of the motor body, a side plate fixedly connected to the side end of the base, and the side plate is located at one end of the output end of the motor body, a vertical cylinder symmetrically fixedly connected to the top of the side plate near the center, an automatic retractable cable reel symmetrically fixedly connected to the top of the side plate and located inside the vertical cylinder, a wire outlet hole is provided near the center of the top of the vertical cylinder, a rotor is rotatably connected to the center of one end of the motor body away from the vertical cylinder, a limiting plate is fixedly connected to the outer ring of the rotor near the center, a fan assembly is detachably provided on the outer ring of the rotor near the limiting plate, an external thread is provided on the outer ring of the rotor near the fan assembly, and the outer ring of the rotor is threadedly rotatably connected to a limiting block near the fan assembly.

[0006] Preferably, the limiting plate is symmetrically provided with positioning holes at one end close to the fan assembly and close to the center, and the fan assembly is symmetrically fixedly connected with positioning columns at one end close to the limiting plate and close to the center, and the positioning columns are adapted to the positioning holes.

[0007] Preferably, the end of the motor body away from the vertical cylinder is detachably connected to a rear cover, the inner center of the end of the rear cover away from the motor body is fixedly connected to a filter screen, and the top of the vertical cylinder is fixedly connected to a clamping plate 1 near the wire outlet hole.

[0008] Preferably, an L-shaped sliding block is fixedly connected to the top of the vertical cylinder near the wire outlet hole, and a second clamping plate is slidably connected to the center of the top of the L-shaped sliding block.

[0009] Preferably, a sliding shaft is slidably connected to the inner side end of the L slider near the center, and the side end of the sliding shaft is fixedly connected to the second clamp, the end of the sliding shaft away from the second clamp is fixedly connected to a pull plate, the end of the second clamp away from the first clamp and close to the sliding shaft is fixedly connected to a spring, and the other end of the spring is fixedly connected to the side end of the L slider.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model solves the problem that the single coil winding structure has only one voltage structure, when the motor is powered on, the terminal interface of different voltages cannot be connected according to the power selection, and the two power lines are easily entangled with each other by pulling the sliding shaft and then cooperating between the clamping plate 1 and the clamping plate 2, the outlet hole, the automatic telescopic winding drum and the spring;

[0012] 2. In the utility model, the limit block is rotated, and then the positioning column, the positioning hole and the rotor cooperate with each other to achieve the replacement of the fan assembly, thereby solving the problem that the heat dissipation fan blades on the existing brushless motor are inconvenient to disassemble and replace, making it impossible to clean quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the vertical tube of the utility model.

[0016] Figure 3 This is a schematic diagram of the rotor structure of the utility model.

[0017] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. Motor body; 11. Base; 12. Side panel; 2. Back cover; 21. Rotor; 22. Limit plate; 23. Positioning hole; 24. External thread; 25. Fan assembly; 26. Positioning column; 27. Limit block; 29. ​​Filter; 3. Vertical cylinder; 31. Automatic telescopic cable reel; 32. Wire outlet hole; 33. Clamp one; 34. L slider; 35. Clamp two; 36. Spring; 37. Sliding shaft. DETAILED DESCRIPTION

[0019] 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.

[0020] Example: Figure 1-4 As shown, the utility model provides a technical solution: a high-power asynchronous motor dual-speed dual-winding structure, including a motor body 1, a base 11 is fixedly connected to the bottom end of the motor body 1, a side plate 12 is fixedly connected to the side end of the base 11, and the side plate 12 is located at one end of the output end of the motor body 1, a vertical cylinder 3 is symmetrically fixedly connected to the top of the side plate 12 near the center, an automatic telescopic winding drum 31 is symmetrically fixedly connected to the top of the side plate 12 and located inside the vertical cylinder 3, a wire outlet hole 32 is provided at the top of the vertical cylinder 3 near the center, a rotor 21 is rotatably connected to the center of one end of the motor body 1 away from the vertical cylinder 3, a limiting plate 22 is fixedly connected to the outer ring of the rotor 21 near the center, a fan assembly 25 is detachably provided at the outer ring of the rotor 21 near the limiting plate 22, an external thread 24 is provided at the outer ring of the rotor 21 near the fan assembly 25, and a limiting block 27 is threadedly rotatably connected to the outer ring of the rotor 21 near the fan assembly 25.

[0021] Positioning holes 23 are symmetrically formed at one end of the limiting plate 22 close to the fan assembly 25 and close to the center.

[0022] By adopting the above technical solution, a positioning hole 23 is provided at the side end of the limiting plate 22 to cooperate with the positioning column 26, thereby achieving the installation and fixing of the fan assembly 25.

[0023] A positioning column 26 is symmetrically fixedly connected to one end of the fan assembly 25 close to the limiting plate 22 and close to the center, and the positioning column 26 is matched with the positioning hole 23 .

[0024] By adopting the above technical solution, the positioning column 26 is provided to cooperate with the positioning hole 23, so as to fix the installation position of the fan assembly 25.

[0025] The end of the motor body 1 away from the vertical cylinder 3 is detachably connected to the rear cover 2 , and the inner center of the end of the rear cover 2 away from the motor body 1 is fixedly connected to the filter screen 29 .

[0026] By adopting the above technical solution, a filter screen 29 is arranged inside the side end of the rear cover 2 to prevent debris from entering when ventilating the rear cover 2.

[0027] A clamping plate 33 is fixedly connected to the top of the vertical tube 3 near the wire outlet hole 32.

[0028] By adopting the above technical solution, the clamping plate 1 33 is provided to cooperate with the clamping plate 2 35, thereby achieving the function of limiting the high and low voltage resistance wires.

[0029] An L-shaped sliding block 34 is fixedly connected to the top of the vertical tube 3 near the wire outlet hole 32 , and a second clamping plate 35 is slidably connected to the center of the top of the L-shaped sliding block 34 .

[0030] By adopting the above technical solution, the L slider 34 is provided to achieve the normal movement of the second clamping plate 35.

[0031] A sliding shaft 37 is slidably connected to the inner side end of the L sliding block 34 near the center, and the side end of the sliding shaft 37 is fixedly connected to the second clamping plate 35 , and the end of the sliding shaft 37 away from the second clamping plate 35 is fixedly connected to a pull plate.

[0032] By adopting the above technical solution, the sliding shaft 37 is provided to pull the second clamping plate 35 to slide at the bottom end of the L sliding block 34.

[0033] A spring 36 is fixedly connected to one end of the second clamping plate 35 away from the first clamping plate 33 and close to the sliding shaft 37 , and the other end of the spring 36 is fixedly connected to the side end of the L sliding block 34 .

[0034] By adopting the above technical solution, a spring 36 is provided at the second clamping plate 35 and the sliding shaft 37 in order to achieve the reset work of the L sliding block 34 .

[0035] Working principle: When the device needs to use high and low voltage resistance wires, the sliding shaft 37 is first pulled, so that the fixedly connected clamping plate 2 35 moves away from the clamping plate 1 33 under the action of the L slider 34, and then the wire harness can be pulled upward through the wire outlet hole 32, and then the high and low voltage resistance wires are released under the action of the automatic retractable winding drum 31, and then the force of the sliding shaft 37 is released, and then under the action of the spring 36, the clamping plate 2 35 moves toward the clamping plate 1 33 under the action of the L slider 34, thereby achieving the limit work of the wire harness, and at the same time, the phenomenon of high and low voltage resistance wire winding can be avoided, thereby solving the problem that the single coil winding structure has only one voltage structure. When the motor is powered on, the terminal interface of different voltages cannot be connected according to the power selection, and the two power lines are prone to entanglement with each other.

[0036] When the fan assembly 25 needs to be replaced, the rear cover 2 is first removed, and then the limit block 27 is rotated and, under the action of the external thread 24, the limit block 27 is separated from the outer ring of the rotor 21, thereby the fan assembly 25 can be removed and replaced, and then the positioning column 26 at the side end of the replaced fan assembly 25 is inserted into the positioning hole 23, and then the limit block 27 is rotated in the opposite direction on the outer ring of the rotor 21, thereby realizing the replacement of the fan assembly 25, thereby solving the problem that the heat dissipation fan blades on the existing brushless motor are inconvenient to disassemble and replace, making it impossible to clean quickly.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A high-power asynchronous motor with dual speed and dual winding structure, comprising a motor body (1), characterized in that: The bottom end of the motor body (1) is fixedly connected to a base (11), the side end of the base (11) is fixedly connected to a side plate (12), and the side plate (12) is located at one end of the output end of the motor body (1), the top of the side plate (12) is symmetrically fixedly connected to a vertical cylinder (3) near the center, the top of the side plate (12) is symmetrically fixedly connected to the vertical cylinder (3), the top of the side plate (12) is symmetrically fixedly connected to an automatic telescopic winding drum (31) located inside the vertical cylinder (3), and the top of the vertical cylinder (3) is provided with a wire outlet hole (32) near the center. A rotor (21) is rotatably connected to the center of one end of the motor body (1) away from the vertical cylinder (3); the outer ring of the rotor (21) is fixedly connected to a limiting plate (22) near the center; a fan assembly (25) is detachably provided on the outer ring of the rotor (21) near the limiting plate (22); an external thread (24) is provided on the outer ring of the rotor (21) near the fan assembly (25); and the outer ring of the rotor (21) is rotatably connected to a limiting block (27) through a thread near the fan assembly (25).

2. A high-power asynchronous motor dual-speed dual-winding structure as claimed in claim 1, characterized in that: The limiting plate (22) is symmetrically provided with positioning holes (23) at one end close to the fan assembly (25) and close to the center.

3. A high-power asynchronous motor dual-speed dual-winding structure as claimed in claim 2, characterized in that: A positioning column (26) is symmetrically fixedly connected to one end of the fan assembly (25) close to the limiting plate (22) and close to the center, and the positioning column (26) is matched with the positioning hole (23).

4. A high-power asynchronous motor dual-speed dual-winding structure as claimed in claim 1, characterized in that: The end of the motor body (1) away from the vertical cylinder (3) is detachably connected to a rear cover (2), and the inner center of the end of the rear cover (2) away from the motor body (1) is fixedly connected to a filter screen (29).

5. A high-power asynchronous motor dual-speed dual-winding structure as claimed in claim 1, characterized in that: A clamping plate 1 (33) is fixedly connected to the top of the vertical tube (3) near the wire outlet hole (32).

6. A high-power asynchronous motor dual-speed dual-winding structure as claimed in claim 5, characterized in that: An L-shaped sliding block (34) is fixedly connected to the top of the vertical cylinder (3) near the wire outlet hole (32), and a second clamping plate (35) is slidably connected to the center of the top of the L-shaped sliding block (34).

7. A high-power asynchronous motor dual-speed dual-winding structure as claimed in claim 6, characterized in that: A sliding shaft (37) is slidably connected to the inner side of the L sliding block (34) near the center, and the side end of the sliding shaft (37) is fixedly connected to the second clamping plate (35), and the end of the sliding shaft (37) away from the second clamping plate (35) is fixedly connected to a pull plate.

8. A high-power asynchronous motor dual-speed dual-winding structure as claimed in claim 7, characterized in that: A spring (36) is fixedly connected to one end of the second clamping plate (35) away from the first clamping plate (33) and close to the sliding shaft (37), and the other end of the spring (36) is fixedly connected to the side end of the L sliding block (34).

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