Base structure of three-phase motor

Abstract

The utility model discloses a base structure of a three-phase motor, which belongs to the technical field of three-phase motor mounting bases, and comprises a base, an adjusting assembly is mounted inside the upper end of the base, and the adjusting assembly is composed of a sliding chute with an X-shaped structure, a driving box, a knob, a connecting shaft, a main gear, an auxiliary gear, a screw rod and a screw block. According to the utility model, by designing a group of adjusting mechanisms composed of the main gear, the auxiliary gear, the screw rods and the screw blocks, in the installation process of the three-phase motor, the main gear can be driven to rotate through the knob according to the specification of the three-phase motor and the position of the fixed lug seat, and then the main gear drives the four groups of screw rods to rotate synchronously through the auxiliary gear; the screw blocks drive the mounting bolts to move under the action of the threads, the positions of the mounting bolts are adjusted, the mounting bolts penetrate through the fixing lugs after the mounting bolts are adjusted in place, then the three-phase motor can be fixed through the nuts, the mode is suitable for the three-phase motors of different specifications, the adjusting process is simple and portable, and the practicability is high. The applicability and the use effect are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-phase motor mounting bases, and particularly relates to a base structure of a three-phase motor. Background Art

[0002] A three-phase motor refers to a motor in which when three-phase stator windings of the motor (each phase differing by 120 electrical degrees) are energized with three-phase alternating current, a rotating magnetic field will be generated. This rotating magnetic field cuts the rotor windings, thereby generating induced current in the rotor windings (the rotor windings are a closed circuit), and during the fixing process of the three-phase motor, it needs to be installed on a base.

[0003] In the existing base structure of a three-phase motor, during use, the reserved fixing lugs at the bottom end of the three-phase motor are aligned with the reserved fixing holes on the base, and then they are installed and fixed with bolts. In the above method, during the installation process, due to the different positions of the reserved fixing lugs of three-phase motors with different specifications, and the positions of the reserved fixing holes on the base are not adjustable, it results in the base being only applicable to a three-phase motor of one specification, leading to low applicability and affecting its use effect. Therefore, a base structure of a three-phase motor is urgently needed to solve the above problems. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a base structure of a three-phase motor.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] A base structure of a three-phase motor includes a base. An adjusting component is installed inside the upper end of the base. The adjusting component is composed of an X-shaped chute, a driving box, a knob, a connecting shaft, a main gear, a sub-gear, a screw rod, and a screw block. A shock-absorbing cavity is formed in the middle of the top end of the screw block, a shock absorber is fixed in the shock-absorbing cavity, and a mounting bolt is fixed at the upper end of the shock absorber.

[0007] Preferably, the chute is formed on the base, and the driving box is welded in the middle of the chute.

[0008] Preferably, the main gear is rotatably connected to the driving box. The connecting shaft is fixed in the middle of the main gear. The knob is welded to the other end of the connecting shaft. The connecting shaft is connected to the top wall of the driving box through a bearing.

[0009] Preferably, the sub-gear meshes with the main gear. There are four groups of sub-gears, which are distributed on the four side walls of the driving box. Both the sub-gear and the sub-gear are helical gears.

[0010] Preferably, one end of the screw rod is rotatably connected to the sliding groove, the other end of the screw rod is fixedly connected to the secondary gear, the screw rod is connected to the outer wall of the driving box through a bearing, the screw block is threadedly connected to the screw rod, and the specifications of the screw block and the sliding groove are matched.

[0011] Preferably, the shock absorption cavity is formed on the screw block, the shock absorber is fixed in the shock absorption cavity by bolts, the shock absorber is a rubber shock absorber, and the mounting bolt is welded to the top end of the shock absorber.

[0012] Preferably, mounting seats are fixed at the four corners of the base, and mounting holes are formed in the mounting seats.

[0013] The beneficial technical effects of the present utility model:

[0014] The present utility model designs a set of adjustment mechanism composed of a main gear, a secondary gear, a screw rod and a screw block. During the installation process of the three-phase motor, according to the specifications of the three-phase motor and the position of the fixed ear seat, the main gear can be driven to rotate by turning the knob, and the main gear drives the four screw rods to rotate synchronously through the secondary gear. Then, the screw block drives the mounting bolt to move under the action of the thread to adjust its position. After the adjustment is in place, the mounting bolt is passed through the fixed ear seat and then fixed to the three-phase motor through a nut. This method is not only applicable to three-phase motors of different specifications, but also the adjustment process is simple and portable, effectively improving its applicability and use effect. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of the base structure of a three-phase motor according to the present utility model;

[0016] Figure 2 It is a schematic internal structure diagram of the driving box in a preferred embodiment of the base structure of a three-phase motor according to the present utility model;

[0017] Figure 3 It is a main sectional view of the screw block in a preferred embodiment of the base structure of a three-phase motor according to the present utility model.

[0018] Explanation of the reference numerals in the drawings is as follows:

[0019] Base; 2. Mounting seat; 3. Adjustment assembly; 301. Sliding groove; 302. Screw rod; 303. Driving box; 304. Knob; 305. Screw block; 306. Connecting shaft; 307. Main gear; 308. Secondary gear; 4. Mounting bolt; 5. Shock absorber; 6. Shock absorption cavity. Detailed Description of the Invention

[0020] To make the technical solution of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings. However, the implementation manners of the present utility model are not limited thereto.

[0021] As Figures 1 - 3 shown, a base structure of a three-phase motor provided in this embodiment includes a base 1. An adjusting component 3 is installed inside the upper end of the base 1. The adjusting component 3 is composed of an X-shaped chute 301, a driving box 303, a knob 304, a connecting shaft 306, a main gear 307, a sub-gear 308, a screw 302, and a screw block 305. A shock-absorbing cavity 6 is formed in the middle of the top end of the screw block 305. A shock absorber 5 is fixed in the shock-absorbing cavity 6, and a mounting bolt 4 is fixed to the upper end of the shock absorber 5.

[0022] The chute 301 is formed on the base 1. The driving box 303 is welded to the middle of the chute 301. The chute 301 provides an installation space for the screw 302 and limits and guides the movement of the screw block 305.

[0023] The main gear 307 is rotatably connected to the driving box 303. The connecting shaft 306 is fixed to the middle of the main gear 307. The knob 304 is welded to the other end of the connecting shaft 306. The connecting shaft 306 is connected to the top wall of the driving box 303 through a bearing. The knob 304 can rotate the main gear 307 through the connecting shaft 306.

[0024] The sub-gear 308 meshes with the main gear 307. There are four groups of sub-gears 308, which are distributed on the four side walls of the driving box 303. Both the sub-gear 308 and the sub-gear 308 are helical gears. The main gear 307 can drive the sub-gear 308 to rotate.

[0025] One end of the screw 302 is rotatably connected to the chute 301, and the other end of the screw 302 is fixedly connected to the sub-gear 308. The screw 302 is connected to the outer wall of the driving box 303 through a bearing. The screw block 305 is threadedly connected to the screw 302. The screw block 305 matches the specifications of the chute 301. The sub-gear 308 can drive the four groups of screws 302 to rotate synchronously, so that the screw block 305 moves under the action of the thread and the chute 301 to adjust the position of the mounting bolt 4.

[0026] The shock-absorbing cavity 6 is formed on the screw block 305. The shock absorber 5 is fixed in the shock-absorbing cavity 6 by bolts. The shock absorber 5 is a rubber shock absorber 5. The mounting bolt 4 is welded to the top end of the shock absorber 5. The shock absorber 5 can play a shock-absorbing effect on the three-phase motor during its use. After passing the mounting bolt 4 through the mounting hole on the fixed ear seat of the three-phase motor, the three-phase motor can be installed and fixed by a nut.

[0027] Mounting seats 2 are fixed at the four corners of the base 1. Mounting holes are formed on the mounting seats 2. The mounting holes on the mounting seats 2 facilitate the installation and fixation of the base 1.

[0028] Working principle of this device: First, fix the base 1 through the mounting holes on the mounting base 2, and then fix the three-phase motor on the base 1. When installing and fixing, drive the main gear 307 to rotate through the knob 304 according to the specifications of the three-phase motor and the position of the fixed ear seat. The main gear 307 then drives the four groups of screw rods 302 to rotate synchronously through the secondary gear 308, so that the screw block 305 drives the mounting bolt 4 to move under the action of the thread and the chute 301 to adjust its position. After the adjustment is in place, pass the mounting bolt 4 through the fixing hole on the fixed ear seat and then use a nut to fix the three-phase motor. This method is not only applicable to three-phase motors of different specifications, but also the adjustment process is simple and portable. During the use of the three-phase motor, the shock absorber 5 can play a shock-absorbing effect on the three-phase motor.

[0029] The above is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the scope disclosed by the present utility model, according to the technical solution and concept of the present utility model, makes equivalent substitutions or changes, all belong to the protection scope of the present utility model.

Claims

1. A base structure of a three-phase motor, characterized in that: It includes a base (1). An adjustment component (3) is installed inside the upper end of the base (1). The adjustment component (3) is composed of an X-shaped chute (301), a drive box (303), a knob (304), a connecting shaft (306), a main gear (307), a sub-gear (308), a screw rod (302), and a screw block (305). A shock-absorbing cavity (6) is formed in the middle of the top end of the screw block (305). A shock absorber (5) is fixed in the shock-absorbing cavity (6). The upper end of the shock absorber (5) is fixed with a mounting bolt (4); the chute (301) is formed on the base (1), and the drive box (303) is welded in the middle of the chute (301); the main gear (307) is rotatably connected to the drive box (303), the connecting shaft (306) is fixed in the middle of the main gear (307), the knob (304) is welded to the other end of the connecting shaft (306), and the connecting shaft (306) is connected to the top wall of the drive box (303) through a bearing; the sub-gear (308) meshes with the main gear (307). There are four groups of sub-gears (308) and they are distributed on the four side walls of the drive box (303). The sub-gears (308) and the sub-gears (308) are both helical gears; one end of the screw rod (302) is rotatably connected to the chute (301), the other end of the screw rod (302) is fixed to the sub-gear (308), the screw rod (302) is connected to the outer wall of the drive box (303) through a bearing, the screw block (305) is threadedly connected to the screw rod (302), and the screw block (305) matches the specification of the chute (301).

2. The base structure of a three-phase motor according to claim 1, characterized in that: The shock-absorbing cavity (6) is formed on the screw block (305). The shock absorber (5) is fixed in the shock-absorbing cavity (6) by bolts. The shock absorber (5) is a rubber shock absorber (5), and the mounting bolt (4) is welded to the top end of the shock absorber (5).

3. The base structure of a three-phase motor according to claim 2, characterized in that: Mounting seats (2) are fixed at the four corners of the base (1), and mounting holes are formed on the mounting seats (2).

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