Iron core mounting and pressing process method achieved without relying on oil press
A process method and technology of hydraulic presses, which are applied in the manufacture of stator/rotor bodies, etc., can solve the problems of inability to precisely control the output pressure of hydraulic presses, insufficient precision of iron core pressing force, insufficient iron core pressing force, etc. The effect of high work efficiency and low equipment cost
Pending Publication Date: 2022-04-12
HARBIN ELECTRIC MASCH CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The disadvantage of using the hydraulic press is that the output pressure of the hydraulic press cannot be accurately controlled, and the accuracy of the core pressing force is insufficient. It is not suitable for products with a small design value of the iron core pressing force, and it is easy to exceed the design range of the iron core pressing force; use according to the torque The disadvantage of the process of tightening the screw rod is that the pressure output is uneven during the tightening process of the bolt, and the mechanical friction during the tightening process causes a part of the torque loss, resulting in insufficient pressing force of the iron core.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] Such as figure 1 As shown, when it is applied to pressurize the rotor core of an induction motor, the design height of the central column 1 is higher than that of the upper bead 2, and there is an external thread on the top. When the iron core 3 is stacked, the central column 1 is placed first, and then the lower bead 4 is assembled, and the central column 1 axially limits the lower bead 4. After the iron core 3 is stacked on the lower bead 4, the upper bead 2 and the pressure cap 5 are installed in sequence to axially limit the upper bead 2. The compression nut 6 is screwed into the top thread of the center column 1, and the bolt hydraulic tensioner 7 is sleeved on the outside of the compression nut 6, and screwed into the top thread of the center column 1. The central column 1 is stretched by the bolt hydraulic tensioner 7, so that the upper bead 2 and the lower bead 4 exert a compressive force on the iron core 3. The pressure value output by the bolt hydraulic tens...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an iron core mounting and pressing process method achieved without an oil press. A mounting and pressing center column is used as a pull rod, and a bolt hydraulic stretcher is used as a piston to drive an upper pressing tire and a lower pressing tire to mount and press an iron core. Before the iron core is sleeved with the rotor, the screw and the nut are tensioned through the outer ring to replace a compression nut to maintain the pressure between iron core sheets; the center column press-dismounting tool is fixed on an upper press tire through a bolt and is matched with a jack to press and dismount a center column. When the process method is applied to iron core pressing, the dependence on oil press equipment can be avoided, the stress in the iron core pressing process is more uniform, and the pressing force of the iron core is more accurately controlled.
Description
technical field [0001] The invention relates to the field of pressing the iron core of a motor, in particular to an iron core pressing process which does not rely on a hydraulic press. Background technique [0002] Take the traditional process of pressing the rotor core of an induction motor as an example: the core is positioned by the center column, the center column is designed to be lower than the upper bead, the punching sheet is stacked on the lower bead, and the upper bead is buckled after the core is stacked . When the design value of the pressing force of the iron core is large, use the hydraulic press to apply the pressing force to the iron core; force. [0003] The disadvantage of using the hydraulic press is that the output pressure of the hydraulic press cannot be precisely controlled, and the accuracy of the core pressing force is insufficient. It is not suitable for products with a small design value of the iron core pressing force, and it is easy to exceed t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H02K15/02
Inventor 贺云龙王亮张健牛彦文张海新王翼飞
Owner HARBIN ELECTRIC MASCH CO LTD