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Sealing structure of angle grinder gear box lubricated by lubricating oil and angle grinder

A technology of sealing structure and lubricating oil, which is applied in the direction of gear transmission, gear lubrication/cooling, belt/chain/gear, etc. It can solve the problems of poor fluidity and poor lubricating effect of semi-solid lubricating oil, so as to ensure long-term lubrication, The effect of reducing operating noise and accelerating the transfer of frictional heat

Pending Publication Date: 2020-12-11
WUYI HENGYOU ELECTROCHEM ZHEJIANG PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional angle grinders use semi-solid lubricating oil to lubricate bearings and gears. Limited by the poor fluidity of semi-solid lubricating oil, the traditional lubrication method has poor lubrication effect.

Method used

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  • Sealing structure of angle grinder gear box lubricated by lubricating oil and angle grinder
  • Sealing structure of angle grinder gear box lubricated by lubricating oil and angle grinder
  • Sealing structure of angle grinder gear box lubricated by lubricating oil and angle grinder

Examples

Experimental program
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Effect test

Embodiment 1

[0039] This embodiment provides an angle grinder gearbox filled with liquid lubricating oil, see Figure 1-Figure 4 , is a schematic structural diagram of the gearbox of this embodiment.

[0040] In this embodiment, the gearbox includes a housing 100, a transmission mechanism assembled in the housing 100, and a sealing assembly; the housing 100 has a first assembly hole 110a and a second assembly hole 110b, and the transmission mechanism includes a motor shaft for driving a motor 112 111, the driving gear 104, the driven gear 107, the drive output shaft 106, the motor shaft 111 passes through the first assembly hole 110a and is rotatably supported in the housing 100, the drive output shaft 106 passes through the second assembly hole 110b and is rotatably supported in the In the housing 100; the driving gear 104 is assembled on the end of the motor shaft 111, the driven gear 107 is assembled on the drive output shaft 106, and the driving gear 104 and the driven gear 107 are mes...

Embodiment 2

[0058] This embodiment provides an angle grinder filled with liquid lubricating oil, see Figure 5 , Image 6 It is a schematic structural view of the angle grinder of this embodiment, wherein the angle grinder of this embodiment includes the gear box described in Embodiment 1, the drive motor 112 and the grinding head 114, the drive motor 112 is a drive motor, and the drive motor can be It is a brushed motor, or a brushless motor with electronic drive. The drive motor 112 is installed in the motor housing 113 , and the motor shaft 111 is rotatably supported in the main housing 105 . A grinding head 114 is fixed at the end of the drive output shaft 106, and the grinding head 114 works for cutting or grinding tools such as cutting discs and friction discs.

[0059] In this embodiment, an auxiliary handle 116 is configured on the angle grinder for easy handling during work.

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Abstract

The invention discloses a sealing structure of an angle grinder gear box lubricated by lubricating oil and an angle grinder. The sealing structure of the angle grinder gear box lubricated by the lubricating oil comprises a shell, a transmission mechanism, a sealing assembly and liquid lubricating oil for lubrication. The transmission mechanism comprises a motor shaft, a driving gear, a driven gearand a driving output shaft, and the motor shaft and the driving output shaft are rotatably supported in the shell. The driving gear is assembled at the end of the motor shaft, the driven gear is assembled on the driving output shaft, and the driving gear and the driven gear are meshed and connected to form a rotary gear pair. The sealing assembly comprises an oil separation pressure reduction ring and a sealing ring, gap sealing is formed between the oil separation pressure reduction ring and the shaft, and contact sealing is achieved between the sealing ring and the shaft. The liquid lubricating oil is used in the gear box for the first time, the liquid lubricating oil can completely infiltrate and fully lubricate the meshed rotary gear pair, effective sealing can be achieved in the working state and the static state of the angle grinder, the sealing effect of the sealing assembly is matched, and therefore the service life of the angle grinder can be remarkably prolonged.

Description

technical field [0001] The invention relates to the technical field of electric tools, in particular to a gear box and an angle grinder filled with liquid lubricating oil. Background technique [0002] Angle grinder is a power tool mainly used for cutting, grinding and polishing metal parts, stone and wood. The angle grinder is mainly driven by the motor to drive the cutting disc or friction disc at the end of the output shaft by driving the gear installed on the output shaft. Therefore, the angle grinder is generally provided with housing structures such as a motor housing and a gear box. The motor casing is used to accommodate the motor and its associated electrical components, and the gearbox is used to accommodate the gear at the end of the motor shaft, the output shaft, the driven gear and its bearings for rotational support. [0003] During the working process of the angle grinder, in order to increase the working life of the meshing gear pair and reduce the operatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04F16H57/021F16H57/023F16H57/029F16H1/12B24B23/02B24B47/12B24B41/04B24B55/00
CPCF16H57/0471F16H57/0467F16H57/0493F16H57/04F16H57/021F16H57/023F16H57/029F16H1/12B24B23/028B24B47/12B24B41/04B24B55/00
Inventor 吕艳孔浩姚永杰任翔
Owner WUYI HENGYOU ELECTROCHEM ZHEJIANG PROV
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