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Handheld type grinding machine capable of preventing fall of grinding wheel

A hand-held, grinding machine technology, which is applied to the fixed grinding wheel device, portable grinding machine, grinding machine parts, etc., which can solve the problems of not very firm fastening of the grinding wheel, strong destructive force, and falling off of the grinding wheel, and reduce the temperature. , prolong life, prevent falling off effect

Pending Publication Date: 2017-02-22
成都蓝吉星科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hand-held grinder in the prior art is equipped with a shield at the grinding wheel to prevent the falling sand from splashing toward the human body, thereby playing a protective function. However, when the operator is using it, due to the fastening of the grinding wheel on the main shaft Not very firm, leading to the risk of the grinding wheel falling off when rotating, and the high-speed rotating grinding wheel has a strong destructive force after falling off, so there is a risk of causing unnecessary losses

Method used

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  • Handheld type grinding machine capable of preventing fall of grinding wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 As shown, in this embodiment, a hand-held grinder that prevents the grinding wheel from falling off includes a housing 1, a handle 2 connected to the bottom of the housing 1, a driving part 3 installed in the housing 1, and a handle connected to the output end of the driving part 3. The main shaft 4, the grinding wheel 5 installed on the main shaft 4, the main shaft 4 runs through the end face of the shell 1, the main shaft 4 is connected with a stopper 7 for the post grinding wheel 5, and the side where the stopper 7 contacts the grinding wheel 5 is arranged There is a sensor 8, and also includes a signal processing unit 9 connected to the sensor 8, the signal processing unit 9 is connected to the driving part 3, and the sensor 8 is a wireless pressure sensor.

[0018] When the grinding wheel 5 is fixed on the main shaft 4 by the stopper 7, the stopper 7 and the grinding wheel 5 need to be tightly attached, usually by screwing the stopper 7 to the main...

Embodiment 2

[0020] This embodiment is further improved on the basis of Embodiment 1. In this embodiment, a hand-held grinder that prevents the grinding wheel from falling off includes a casing 1, a handle 2 connected to the bottom of the casing 1, and a drive installed in the casing 1. Part 3, the main shaft 4 connected to the output end of the driving part 3, the grinding wheel 5 installed on the main shaft 4, the main shaft 4 runs through the end face of the housing 1, and the main shaft 4 is connected with a stopper 7 for the column grinding wheel 5, in A sensor 8 is arranged on the side where the block 7 contacts with the grinding wheel 5, and also includes a signal processing unit 9 connected to the sensor 8, the signal processing unit 9 is connected to the driving part 3, and the sensor 8 is a wireless pressure sensor. Ventilation openings 10 in the shape of a mesh are provided at corresponding positions on the casing 1 .

[0021] The present invention is provided with a vent 10 on ...

Embodiment 4

[0023] This embodiment is further improved on the basis of the above embodiments. In this embodiment, a hand-held grinder that prevents the grinding wheel from falling off includes a casing 1, a handle 2 connected to the bottom of the casing 1, and a The driving part 3 in the housing 1, the main shaft 4 connected to the output end of the driving part 3, the grinding wheel 5 installed on the main shaft 4, the main shaft 4 runs through the end face of the housing 1, and the main shaft 4 is connected with a stopper for the column grinding wheel 5 The block 7 is provided with a sensor 8 on the side where the block 7 is in contact with the grinding wheel 5, and also includes a signal processing unit 9 connected to the sensor 8, the signal processing unit 9 is connected to the driving part 3, and the sensor 8 is wireless For the pressure sensor, mesh-shaped vents 10 are provided at corresponding positions on the housing 1 , and a switch 6 for starting and stopping the drive unit 3 is...

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Abstract

The invention discloses a handheld type grinding machine capable of preventing the fall of a grinding wheel. The handheld type grinding machine comprises a shell (1), a handle (2) connected with the bottom of the shell (1), a driving part (3) mounted in the shell (1), a main shaft (4) connected with the output end of the driving part (3), a grinding wheel (5) mounted on the main shaft (4), a stop block (7) connected to the main shaft (4) and used for blocking the grinding wheel (5) and a sensor (8) arranged at the side in contact with the grinding wheel (5) of the stop block (7). The handheld type grinding machine further comprises a signal processing unit (9) connected with the sensor (8), and the signal processing unit (9) is connected with the driving part (3). By adopting the structure, when the grinding wheel (5) is about to fall, the sensor (8) detects that pressure decreases. When the pressure is smaller than a certain degree, the signal processing unit (9) disconnects a power supply system of the driving part (3), the grinding wheel (5) is prevented from continuously rotating, and accordingly, the fall of the grinding wheel (5) is prevented.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to a hand-held grinder that prevents the grinding wheel from falling off. Background technique [0002] Grinding machine is a common equipment used to sharpen various knives and tools. It is a kind of sand grinding electric tool, which is widely used in the production activities of industrial and mining enterprises. The overall transmission mechanism is very simple and perfect, which makes the grinding process more convenient and smooth and improves the grinding efficiency of the overall grinder. The hand-held grinder in the prior art is equipped with a shield at the grinding wheel to prevent the falling sand from splashing towards the human body, thereby playing a protective function. However, when the operator is using it, due to the fastening of the grinding wheel on the main shaft It is not very firm, causing the risk of the grinding wheel falling off when rotating, and the high-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B23/02B24B45/00B24B55/00
CPCB24B23/02B24B45/003B24B55/00
Inventor 何金蓉
Owner 成都蓝吉星科技有限公司