CN220783395U - Alternating current brushless angle grinder - Google Patents

Abstract

An ac brushless angle grinder includes a motor including at least a rotating shaft extending along a first axis; a handle comprising a grip; an output shaft for driving a work attachment, the output shaft extending along a second axis; a control assembly for controlling the operation of the angle grinder; the output shaft is far away from work annex one side is provided with first friction disc, still is provided with the stall button, sets up on the casing through first elastomeric element, the stall button tip is provided with the second friction disc with first friction disc is arranged in on the same axis. The stop button is arranged, and the angle grinder can be started after stopping, so that the blade can be stopped rapidly, and dangers are avoided; when the angle grinder is started, the locking component locks the stop button to prevent false touch.

Description

Alternating current brushless angle grinder

Technical Field

The application relates to the technical field of electric tools, in particular to an alternating current brushless angle grinder.

Background

The angle grinder is also called as grinder or disc grinder, is a grinding tool for cutting and polishing glass fibre reinforced plastic, and is a portable electric tool, and is mainly used for cutting, grinding and brushing metal and stone material. After the existing angle grinder is stopped, the blade can not stop immediately due to inertia or continuous rotation, and if an operator is careless, the blade which is continuously rotated is easy to generate danger, so that certain potential safety hazard exists.

Disclosure of Invention

Aiming at the defects of the prior art, the application provides an alternating current brushless angle grinder.

The technical scheme adopted for solving the technical problems is as follows: an ac brushless angle grinder, comprising: a motor including at least a rotating shaft extending along a first axis; a handle comprising a grip; an output shaft for driving a work attachment, the output shaft extending along a second axis; a control assembly for controlling the operation of the angle grinder; the output shaft is far away from work annex one side is provided with first friction disc, still is provided with the stall button, sets up on the casing through first elastomeric element, the stall button tip is provided with the second friction disc with first friction disc is arranged in on the same axis.

In the above technical solution, further, when the stop button is pressed, the second friction plate contacts with the first friction plate, and when the stop button is reset under the action of the first elastic component, the second friction plate is separated from the first friction plate.

In the above technical scheme, further, the stall button is provided with locking subassembly, locking subassembly includes locking pin, second elastomeric element and electro-magnet, when stall button is placed in reset state, the locking pin can stretch out and the joint is in the casing outside.

In the above technical scheme, further, the locking pin moves along the axis under the action of the electromagnet, and the electromagnet is controlled by the switch trigger.

In the above technical scheme, further, when the switch trigger is closed, the electromagnet is powered off, and the locking pin stretches out under the action of the second elastic component, so that the stalling button is locked; when the switch trigger is released and reset, the electromagnet is powered, and the locking pin compresses the second elastic component, so that the stall button is unlocked.

In the above technical scheme, further, one end of the motor, which is close to the output shaft, is provided with a fan, and the end part of the rotating shaft is provided with a first bevel gear which is meshed with a second bevel gear of the output shaft for transmission.

In the above technical scheme, further, the control assembly is provided with a fault lamp and a maintenance indicator lamp.

The beneficial effects of this application lie in: 1. the stop button is arranged, and the angle grinder can be started after stopping, so that the blade can be stopped rapidly, and dangers are avoided; 2. when the angle grinder is started, the locking component locks the stop button to prevent false touch.

Drawings

The present application is further described below with reference to the drawings and examples.

Fig. 1 is a schematic view of the internal structure of the present application.

Fig. 2 is a schematic view of the structure of the inside of another angle of the present application.

Fig. 3 is an enlarged partial schematic view of fig. 2 a of the present application.

In the drawings, 1. Motor, 11. Rotating shaft, 12. Fan, 13. First bevel gear, 2. Handle, 21. Grip portion, 3. Output shaft, 31. Work attachment, 32. First friction plate, 33. Second bevel gear, 4. Control assembly, 41. Failure light, 42. Maintenance indicator light, 5. Stop button, 51. First resilient member, 52. Second friction plate, 6. Locking assembly, 61. Locking pin, 62. Second resilient member, 63. Electromagnet, 7. Housing.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

Referring to fig. 1-3, in this embodiment, an ac brushless angle grinder includes: a motor 1, said motor 1 comprising at least a rotation shaft 11 extending along a first axis; a handle 2, said handle 2 comprising a grip 21; an output shaft 3 for driving a working attachment 31, said output shaft 3 extending along a second axis; a control assembly 4 for controlling the operation of the angle grinder; the output shaft 3 is provided with a first friction plate 32 at the side far away from the working accessory 31, and is also provided with a stop button 5, the stop button is arranged on the shell 7 through a first elastic component 51, and the end part of the stop button 5 is provided with a second friction plate 52 and the first friction plate 32 are arranged on the same axis.

In order to enable the working attachment 31 to be actively stopped, the working attachment 31 is stopped from rotating by the friction plates which are matched with each other, the second friction plate 52 is contacted with the first friction plate 32 when the stop button 5 is pressed, and the second friction plate 52 is separated from the first friction plate 32 when the stop button 5 is reset under the action of the first elastic member 51.

In order to enable the motor 1 to be in a locking state when being driven, a locking assembly 6 is arranged, the locking assembly 6 comprises a locking pin 61, a second elastic component 62 and an electromagnet 63, when the motor 1 is in a reset state, the locking pin 61 can extend out of the shell 7 and is clamped outside the shell, the locking pin 61 moves along an axis under the action of the electromagnet 63, the electromagnet 63 is controlled by a switch trigger, when the switch trigger is closed, the electromagnet 63 is powered off, and the locking pin 61 extends out under the action of the second elastic component 62, so that the motor 1 is locked; when the switch trigger is released and reset, the electromagnet 63 is powered, and the locking pin 61 compresses the second elastic member 62, so that the stop button is unlocked.

The motor 1 is provided with a fan 12 near one end of the output shaft 3, and the end part of the rotating shaft 11 is provided with a first bevel gear 13 which is meshed with a second bevel gear 33 of the output shaft 3 for transmission.

The control assembly 4 is provided with the fault lamp 41 and the maintenance indicator lamp 42, and the fault lamp 41 twinks several times and corresponds different fault codes, and research personnel can more intuitively know the fault point, practices thrift the time of maintenance, and the maintenance indicator lamp 42 twinks and can remind the user in time to clean the inside of the machine.

In the method, a stall button is arranged and can be started after the angle grinder is stopped, so that the blade is stopped rapidly, and dangers are avoided; when the angle grinder is started, the locking component locks the stop button to prevent false touch.

The foregoing description is only a preferred embodiment of the present application and is not intended to limit the present application in any way, and simple modifications, equivalent changes or modifications can be made without departing from the technical solutions of the present application, all falling within the scope of the present application.

Claims (7)

1. An ac brushless angle grinder, comprising:

a motor including at least a rotating shaft extending along a first axis;

a handle comprising a grip;

an output shaft for driving a work attachment, the output shaft extending along a second axis;

the control assembly is used for controlling the operation of the angle grinder;

it is characterized in that a first friction plate is arranged on one side of the output shaft far away from the working accessory,

the novel anti-theft device is characterized by further comprising a stall button, wherein the stall button is arranged on the shell through a first elastic component, and the end part of the stall button is provided with a second friction plate and the first friction plate which are arranged on the same axis.

2. The ac brushless angle grinder of claim 1, wherein the second friction plate is in contact with the first friction plate when the stall button is pressed, and the second friction plate is separated from the first friction plate when the stall button is reset by the first elastic member.

3. The ac brushless angle grinder of claim 1, wherein the stall button is provided with a locking assembly comprising a locking pin, a second elastic member, and an electromagnet, the locking pin being capable of extending out and being snapped outside the housing when the stall button is placed in a reset state.

4. An ac brushless angle grinder according to claim 3, wherein the locking pin is movable along the axis by an electromagnet controlled by a switch trigger.

5. The ac brushless angle grinder of claim 4, wherein when the switch trigger is closed, the electromagnet is de-energized, the locking pin is extended by the second elastic member, so that the stall button is locked; when the switch trigger is released and reset, the electromagnet is powered, and the locking pin compresses the second elastic component, so that the stall button is unlocked.

6. The ac brushless angle grinder of claim 1, wherein a fan is disposed at an end of the motor adjacent to the output shaft, and a first bevel gear is disposed at an end of the rotation shaft to be engaged with a second bevel gear of the output shaft.

7. An ac brushless angle grinder according to claim 1, wherein the control assembly is provided with a fault light and a maintenance indicator light.