CN219403730U - Household low-noise angle grinder - Google Patents

Abstract

The utility model discloses a household low-noise angle grinder. The key points of the technical scheme are as follows: the utility model provides a domestic low noise angle grinder, including left casing and right casing, left casing and right casing swing joint, install respectively after left casing and the right casing are connected and to be equipped with actuating mechanism in left casing and the right casing, actuating mechanism is including setting up stator and the rotor in left casing and right casing, the both ends of rotor are pressed respectively and are equipped with first bearing and second bearing, the rotor passes the stator and is fixed in left casing and right casing, carbon brush and brush holder are installed to right casing inboard. According to the utility model, 220v alternating current is input, the control switch is turned on, so that the alternating current is connected into the stator and passes through the stator to be fixed on the rotor on the right shell, and the motor parameters are adjusted in a matching way, so that the motor rotating speed is reduced to be within 11000, the noise is reduced, and the motor is more suitable for household and small-range polishing.

Description

Household low-noise angle grinder

Technical Field

The utility model relates to the technical field of electric tools, in particular to a household low-noise angle grinder.

Background

In order to pursue higher power, the traditional 100-type angle grinder enables the rotating speed of a motor to be more than 35000r/min, meanwhile, the rotating speed of the motor is reduced to about 11000r/min through a gear ratio, the rotating speed of the motor is high, the rotor fan sucks air and exhausts air to generate larger noise, a reduction gear is a finished iron product, and meshing can generate stronger noise due to the accuracy problem. Therefore, a grinding machine is proposed which is low in noise and more suitable for household use.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the household low-noise angle grinder, and the control switch is turned on by inputting 220v alternating current, so that the alternating current is connected into a stator and passes through a rotor fixed on a right shell of the stator, and the motor parameters are matched and adjusted to reduce the motor rotating speed to within 11000, thereby reducing noise, and being more suitable for household and small-range grinding.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a domestic low noise angle grinder, includes left casing and right casing, left side casing and right casing swing joint, install flange, emery wheel cover and outward flange respectively after left side casing and right casing connect, be provided with actuating mechanism in left side casing and the right casing, actuating mechanism is including setting up stator and the rotor in left side casing and right casing, the both ends of rotor are pressed respectively and are equipped with first bearing and second bearing, the rotor passes the stator and is fixed in left side casing and right casing, carbon brush and brush holder are installed to right side casing inboard.

Through adopting above-mentioned technical scheme, after the both ends pressure equipment of rotor first bearing and second bearing, pass the stator and fix on the right casing, self-locking pin, spring and self-locking cap install in the outside of right casing, control switch, the carbon brush, the brush yoke and be used for protecting the lag of power cord all set up in the inboard of right casing, at last correspond the installation left casing through the mounting hole that sets up on the corresponding right casing, and fix left casing and right casing after fixing through the self-tapping screw, install outer flange at last, the installation is realized to emery wheel and wheel cover, through the grafting power after the installation, input 220v alternating current, through opening control switch, make the alternating current switch in the stator, make the rotor rotate according to the design direction and produce rotational speed and moment of torsion.

The utility model is further provided with: the right casing inboard is provided with control assembly, control assembly includes control switch and is used for the power cord of connecting the power with control switch.

By adopting the technical scheme, after the power line is plugged, the control switch is turned on to be connected with the stator through the carbon brush and supply power, and the rotor is driven to rotate to output the power, so that the grinding wheel arranged on the cornea machine is driven to grind.

The utility model is further provided with: the outside cover of power cord is equipped with the lag.

Through adopting above-mentioned technical scheme, protect the hookup location of power cord and left casing and right casing through the lag to when promoting connection stability, extension power cord's life.

The utility model is further provided with: the outer side of the right shell is respectively provided with a self-locking pin, a spring and a self-locking cap matched with the self-locking pin, and the spring is sleeved on the self-locking pin.

Through adopting above-mentioned technical scheme, install in the outside of right casing together from lockpin, spring and self-locking cap, further promotion safety in utilization.

The utility model is further provided with: the left casing and the right casing are fixed through self-tapping screws.

Through adopting above-mentioned technical scheme, connect fixedly through self-tapping screw to left casing and right casing to promote the connection stability of left casing and right casing.

The utility model is further provided with: the stator is connected with 220v alternating current.

By adopting the technical scheme, 220v alternating current is common electricity for families, and is suitable for the families.

In summary, the utility model has the following beneficial effects:

according to the technical scheme, the motor rotating speed is reduced to be within 11000 through adjusting motor parameters and a winding scheme, so that the setting of a reduction gear is canceled, the front section of a rotor shaft is changed into M10 threads, the M10 threads are directly output, the noise is reduced, and the motor rotating speed is more suitable for household small-range polishing.

Drawings

Fig. 1 is a schematic diagram of an explosive structure according to the present utility model.

In the figure: 1. an outer flange; 2. an inner flange; 3. a grinding wheel cover; 4. a first bearing; 5. a self-locking pin; 6. a spring; 7. a self-locking cap; 8. a right housing; 9. a second bearing; 10. a carbon brush; 11. a brush holder; 12. a control switch; 13. a protective sleeve; 14. a rotor; 15. a stator; 16. a left casing.

Detailed Description

In order to better understand the technical solutions of the present utility model, the following description will be made in detail with reference to the accompanying drawings and specific embodiments, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "sleeved," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The present utility model will be described in detail below with reference to the accompanying drawings.

The utility model provides a domestic low noise angle grinder, including left casing 16 and right casing 8, left side casing 16 and right casing 8 swing joint, install respectively behind left side casing 16 and the right casing 8 internal flange 2, the emery wheel, grinding wheel cover 3 and external flange 1, be provided with actuating mechanism in left side casing 16 and the right casing 8, actuating mechanism is including setting up stator 15 and the rotor 14 in left side casing 16 and right casing 8, the both ends of rotor 14 are pressed respectively and are equipped with first bearing 4 and second bearing 9, first bearing 4 adopts 6001 bearing, second bearing 9 adopts 607 bearing, rotor 14 passes stator 15 and is fixed in left side casing 16 and right casing 8.

Inside the right housing 8 are mounted a carbon brush 10 and a brush holder 11, the carbon brush 10 also called a brush, which is a sliding contact, and is widely used in many electrical devices. The carbon brush 10 is mainly made of graphite, impregnated graphite, and metal (copper and silver containing) graphite in the product application. The carbon brush 10 is a device for transmitting energy or signals between a fixed part and a rotating part of a motor or a generator or other rotary machinery, is generally made of pure carbon and a coagulant, is generally square in shape, is clamped on a metal bracket, is tightly pressed on a rotating shaft by a spring 6, and transmits electric energy to a coil through a phase changer when the motor rotates.

The inside control assembly that is provided with of right casing 8, control assembly includes control switch 12 and is used for connecting the power cord of power with control switch 12, the outside cover of power cord is equipped with lag 13, the outside of right casing 8 is installed respectively from lockpin 5, spring 6 and with self-locking cap 7 of self-locking pin 5 matched with, spring 6 cover is located on the lockpin 5, further promotion safety in utilization, left side casing 16 and right casing 8 are fixed through the self-tapping screw to promote the connection stability of left side casing 16 and right side casing 8.

The using method comprises the following steps: after the first bearing 4 and the second bearing 9 are pressed at two ends of the rotor 14, the rotor passes through the stator 15 and is fixed on the right casing 8, the self-locking pin 5, the spring 6 and the self-locking cap 7 are installed on the outer side of the right casing 8, the control switch 12, the carbon brush 10, the brush holder 11 and the protective sleeve 13 for protecting the power line are all arranged on the inner side of the right casing 8, the left casing 16 is correspondingly installed through the installation holes arranged on the corresponding right casing 8, the fixed left casing 16 and the right casing 8 are fixed through self-tapping screws, the outer flange 1, the inner flange 2, the grinding wheel and the grinding wheel cover 3 are installed, 220v of alternating current is input through the plugging power supply after the installation, and the control switch 12 is opened, so that the rotor 14 rotates according to the design direction and generates rotating speed and torque.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (6)

1. The utility model provides a domestic low noise angle grinder, includes left casing (16) and right casing (8), left side casing (16) and right casing (8) swing joint, install flange (2), emery wheel cover (3) and outward flange (1) respectively after left side casing (16) and right casing (8) are connected, be provided with actuating mechanism in left side casing (16) and the right casing (8), its characterized in that: the driving mechanism comprises a stator (15) and a rotor (14) which are arranged in a left casing (16) and a right casing (8), a first bearing (4) and a second bearing (9) are respectively pressed at two ends of the rotor (14), the rotor (14) penetrates through the stator (15) to be fixed in the left casing (16) and the right casing (8), and a carbon brush (10) and a brush holder (11) are arranged on the inner side of the right casing (8).

2. A household low noise angle grinder as defined in claim 1, wherein: the right casing (8) inboard is provided with control assembly, control assembly includes control switch (12) and is used for the power cord of connecting the power with control switch (12).

3. A household low noise angle grinder as defined in claim 2, wherein: the outside of the power line is sleeved with a protective sleeve (13).

4. A household low noise angle grinder as defined in claim 1, wherein: the outer side of the right casing (8) is provided with a self-locking pin (5), a spring (6) and a self-locking cap (7) matched with the self-locking pin (5), and the spring (6) is sleeved on the self-locking pin (5).

5. A household low noise angle grinder as defined in claim 1, wherein: the left casing (16) and the right casing (8) are fixed through self-tapping screws.

6. A household low noise angle grinder as defined in claim 1, wherein: the stator (15) is connected with 220v alternating current.