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Jack device directly driven by frameless permanent magnet synchronous motor

A permanent magnet synchronous motor and permanent magnet synchronous technology, applied to synchronous motors with stationary armatures and rotating magnets, electromechanical devices, lifting devices, etc., can solve the problem of low lifting height of hydraulic jacks, complex screw jack structures, Complicated structure and other issues, to achieve the effect of flexible selection, simple structure, and simplified driving mode

Pending Publication Date: 2018-06-29
HUBEI HUANYEE ELECTROMAGNETIC EQUIP ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the structure of the screw jack is more complicated; the hydraulic jack is only suitable for lifting operations with a small lifting height and oil leakage will occur; since the jack device is composed of a hydraulic cylinder and an electric pump station, oil leakage will also occur Phenomenon, and the structure is relatively complex and inconvenient to install

Method used

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  • Jack device directly driven by frameless permanent magnet synchronous motor
  • Jack device directly driven by frameless permanent magnet synchronous motor
  • Jack device directly driven by frameless permanent magnet synchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 1~5 As shown, a jack device directly driven by a frameless permanent magnet synchronous motor includes a jack base 1 and a motor 2, the motor 2 is a frameless permanent magnet synchronous direct drive motor, and the frameless permanent magnet synchronous The direct drive motor includes a stator assembly 21 and a rotor assembly 22, the stator assembly 21 includes a first stator core 211 and a first stator winding 212 wound on the first stator core 211, the first stator The iron core 211 is an integrally formed annular column; the stator assembly 21 of the frameless permanent magnet synchronous direct drive motor is fixedly connected to the jack base 1; the rotor assembly 22 is connected to the screw rod 4 of the jack through a nut 3 .

[0044] The present invention uses a frameless permanent magnet synchronous motor to directly drive the screw 4, and the rotor assembly 22 rotates through a nut 3 and is connected to the screw 4 of the jack. When the motor...

Embodiment 2

[0052] Such as Figure 6-8 As shown, a jack device directly driven by a frameless permanent magnet synchronous motor. The structure and principle of this embodiment are similar to those of Embodiment 1. The difference between this embodiment and Embodiment 1 is that the cross-section It is cross-shaped or square or the guide rod 11 is a cylinder, and four protrusions are arranged in the circumferential direction; the guide rod 4 is provided with a slideway 43 adapted to the guide rod.

Embodiment 3

[0054] Such as Figure 9 As shown, a jack device directly driven by a frameless permanent magnet synchronous motor, the structure and working principle of this embodiment are similar to that of embodiment 1 or embodiment 2, and the difference with embodiment 1 or embodiment 2 is that the A cooling unit 12 is provided on the inner wall of the jack base 1 in the circumferential direction. When the motor is running, it will generate a lot of heat, which affects the normal operation of the equipment. The cooling unit can quickly take away the heat to ensure the stable operation of the equipment.

[0055] The cooling unit 12 is a cooling water pipe. The circulating water flowing inside the cooling water pipe can take out the heat generated by the equipment in time, so that the equipment can maintain a very stable and suitable temperature, and the cooling effect is good.

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Abstract

The invention discloses a jack device directly driven by a frameless permanent magnet synchronous motor. The jack device comprises a jack base and the motor, the motor is the frameless permanent magnet synchronous direct-driving motor, and the direct-driving motor comprises a stator assembly and a rotor assembly; the stator assembly comprises a stator iron core and a stator winding which winds thestator iron core, and the stator iron core is an annular column or an annular disc which is integrally formed; the stator assembly of the direct-driving motor is fixedly connected with the jack base;the rotor assembly is connected to a lead screw of a jack through a nut. According to the jack device, the frameless permanent magnet synchronous motor is adopted for directly driving the lead screw,the stator assembly is connected to the lead screw of the jack through the nut, after the motor is powered on, a rotor rotates to drive the nut to rotate, the lead screw connected with the nut ascends or descends, an intermediate transmission link is reduced, the energy consumption is lowered, and the jack device is simple in structure and convenient to install and maintain.

Description

technical field [0001] The invention relates to the technical field of jacks, in particular to a jack device directly driven by a frameless permanent magnet synchronous motor. Background technique [0002] Jack refers to the light and small lifting equipment that uses a rigid top lifting part as a working device, and the weight is lifted in a small stroke by a top bracket or a bottom claw. The jack is mainly used in factories, mines, transportation and other departments as vehicle repair and other lifting, support and other work. Its structure is light and strong, flexible and reliable, and can be carried and operated by one person. Among them, the commonly used jacks include screw jacks, hydraulic jacks, and jack devices. In principle, the most basic principle of hydraulic transmission is Pascal's law, that is to say, the pressure of the liquid is the same everywhere. Thus, in a balanced system, the smaller piston exerts less pressure and the larger piston exerts more pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/14H02K7/06H02K21/14B66F3/44
CPCH02K7/06H02K7/14H02K21/14B66F3/44
Inventor 黄诚杨勇强
Owner HUBEI HUANYEE ELECTROMAGNETIC EQUIP ENG TECH CO LTD
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