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Auxiliary driving device of spindle motor

A technology of auxiliary drive and spindle motor, which is applied to pump devices, parts of pumping devices for elastic fluids, machines/engines, etc. It can solve the problems of long acceleration and deceleration time, difficult maintenance, and excessive temperature rise, etc., to achieve Reduce friction, facilitate operation, and increase air pressure

Active Publication Date: 2022-07-22
常州市昌隆电机股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the spindle speed is too fast, there are some problems, such as long acceleration and deceleration time, loud noise, too fast temperature rise, difficult maintenance, etc.

Method used

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  • Auxiliary driving device of spindle motor
  • Auxiliary driving device of spindle motor
  • Auxiliary driving device of spindle motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like Figure 1-Figure 3 As shown, the present invention provides an auxiliary drive device for a spindle motor, comprising a mounting plate 1 and a spindle case 2, an encoder 3 is provided outside the spindle case 2, a junction box 4 is provided on one side of the encoder 3, and the spindle Both sides of the box body 2 are provided with a bearing group 5, the inner part of the bearing group 5 is sleeved with a main shaft 6, the outer end of the main shaft 6 is provided with a main shaft motor 7, one side of the main shaft motor 7 is provided with a heat dissipation mechanism 8, and the mounting plate 1 The bottom end is provided with a lubricating mechanism 9, the lubricating mechanism 9 includes an oil pot 91, the open end of the oil pot 91 is provided with a gear pump 92, the output end of the gear pump 92 is provided with a high-pressure hose 93, and the high-pressure hose 93 is provided with an electromagnetic The valve 94 and the shunt joint 95 are connected to the...

Embodiment 2

[0035] like Figure 4-Figure 5As shown, the present invention provides an auxiliary drive device for a spindle motor. The bearing group 5 includes an angular contact bearing 51 , a deep groove ball bearing 52 and a first graphite oil seal 53 . The spacer ring 54 has an oil hole 55 at the center of the bottom end of the spacer ring 54. The outer sides of the angular contact bearing 51 and the deep groove ball bearing 52 are provided with a first graphite oil seal 53, and the high-pressure hose 93 connected by the shunt joint 95 passes through to the inside of the spindle housing 2 and connected to the oil hole 55 .

[0036] Further, the spacer ring 54 is in fixed contact with the outer rings of the angular contact bearing 51 and the deep groove ball bearing 52 , and a gap is left between the spacer ring 54 and the main shaft 6 .

[0037] Specifically, on the basis of Embodiment 1, the angular contact bearing 51 and the deep groove ball bearing 52 are used to bear both radial l...

Embodiment 3

[0039] like Image 6 As shown, the present invention provides an auxiliary drive device for a spindle motor, an interference sleeve is provided between the rotor of the spindle motor 7 and the main shaft 6, a balance disc is provided on both sides of the rotor of the spindle motor 7, and the heat dissipation mechanism 8 includes a cooling jacket 81, the cooling jacket 81 is attached to the outer surface of the stator of the spindle motor 7, the surface of the cooling jacket 81 is provided with a circulation pipe 82, one side of the lubricating mechanism 9 is provided with a refrigeration assembly, and the refrigeration assembly includes a terminal joint 83 and an external circulating water cooler, The circulation pipe 82 extends through and extends to the outside of the spindle housing 2 and is connected to the terminal joint 83, and the terminal joint 83 is connected with an external circulating water cooler.

[0040] Specifically, on the basis of Embodiment 1, during the wor...

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Abstract

The invention discloses an auxiliary driving device of a main shaft motor, which comprises a mounting disc and a main shaft box body, an encoder is arranged outside the main shaft box body, a junction box is arranged on one side of the encoder, bearing packs are arranged on two sides of the main shaft box body, a main shaft is sleeved in the bearing packs, and a main shaft motor is arranged at the outer end of the main shaft. A heat dissipation mechanism is arranged on one side of the spindle motor, a lubricating mechanism is arranged at the bottom end of the mounting disc and comprises an oil can, a gear pump is arranged at the opening end of the oil can, a high-pressure hose is arranged at the output end of the gear pump, an electromagnetic valve and a flow dividing connector are arranged on the high-pressure hose, and the flow dividing connector is connected with the bearing set through the high-pressure hose. Lubricating oil in the oil can is injected into the bearing pack, so that the joint of the main shaft and the bearing is fully lubricated, friction between the main shaft and the bearing is reduced, and the joint of the main shaft and the bearing cannot deform due to overheating in the high-speed rotation process of the main shaft motor.

Description

technical field [0001] The invention relates to the field of spindle motors, in particular to an auxiliary drive device of the spindle motor. Background technique [0002] The principle of the spindle motor is to convert electrical energy into mechanical energy. High-speed CNC machine tool (CNC) is one of the technical foundations and development directions of the equipment manufacturing industry, and is a strategic industry of the equipment manufacturing industry. The working performance of high-speed CNC machine tools first depends on the performance of the high-speed spindle. The high-speed electric spindle unit of CNC machine tools affects the precision, stability and application range of the machining system, and its dynamic performance and stability play a key role in high-speed machining. The types of high-speed spindle units mainly include electric spindles, pneumatic spindles, and hydraulic spindles. The output power of different types of high-speed spindle units...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q1/70B23B19/02F04D13/06F04D29/22
CPCB23Q1/70F04D13/0606F04D29/2222Y02P70/10
Inventor 高昱王建南黄丽萍王璐颖曹洲陆寒峰关正张平山
Owner 常州市昌隆电机股份有限公司
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