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

A 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 technique

In order to pursue higher power, the traditional 100-type angle grinder sets the motor speed above 35000r/min, and at the same time reduces the output speed to about 11000r/min through the gear ratio. The motor speed is high, and the suction and exhaust of the rotor fan produce relatively loud noise. Therefore propose a kind of low-noise and be more suitable for household grinder.

Utility model content

Aiming at the deficiencies of the existing technology, the purpose of this utility model is to provide a household low-noise angle grinder. By inputting 220v alternating current, the control switch is turned on, so that the alternating current is connected to the stator and passed through the stator and fixed on the rotor on the right casing. Cooperating with the adjustment of the motor parameters, the motor speed is reduced to within 11000, the noise is reduced, and it is more suitable for household and small-scale grinding.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a household low-noise angle grinder, including a left casing and a right casing, the left casing and the right casing are movably connected, the left casing and the right casing are respectively installed with an inner flange, a grinding wheel, a grinding wheel cover and an outer flange after being connected, and a driving mechanism is arranged inside the left casing and the right casing. The child is fixed in the left casing and the right casing, and carbon brushes and brush holders are installed inside the right casing.

By adopting the above technical scheme, after the first bearing and the second bearing are press-fitted at both ends of the rotor, they pass through the stator and are fixed on the right casing. Self-locking pins, springs and self-locking caps are installed on the outside of the right casing. Control switches, carbon brushes, brush holders and protective sleeves for protecting power lines are all arranged inside the right casing. Finally, the left casing is installed through the corresponding mounting holes on the right casing, and the fixed left and right casings are fixed by self-tapping screws. Finally, the outer flange, inner flange, grinding wheel and grinding wheel cover are installed After installation, plug in the power supply, input 220v AC, and turn on the control switch to connect the AC to the stator, so that the rotor rotates in the designed direction and generates speed and torque.

The utility model is further configured as follows: a control assembly is arranged inside the right casing, and the control assembly includes a control switch and a power cord for connecting the power supply with the control switch.

By adopting the above technical scheme, after the power cord is plugged in, the control switch is turned on to connect the stator and supply power through the carbon brush, and drives the rotor to rotate for external output, thereby driving the grinding wheel installed on the cornea machine to perform grinding work.

The utility model is further configured as: the outer sheath of the power cord is provided with a protective sheath.

By adopting the above technical solution, the connection position between the power cord and the left and right housings is protected by the protective sleeve, so as to improve the connection stability and prolong the service life of the power cord.

The utility model is further configured as follows: a self-locking pin, a spring and a self-locking cap matched with the self-locking pin are respectively installed on the outside of the right casing, and the spring is sheathed on the self-locking pin.

By adopting the above technical solution, the self-locking pin, the spring and the self-locking cap are installed on the outside of the right casing together, which further improves the safety of use.

The utility model is further configured as: the left casing and the right casing are fixed by self-tapping screws.

By adopting the above technical solution, the left casing and the right casing are connected and fixed by self-tapping screws, so as to improve the connection stability of the left casing and the right casing.

The utility model is further configured as: the stator is connected to 220v alternating current.

By adopting the above-mentioned technical scheme, the 220v alternating current is commonly used in households and is suitable for household use.

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

This technical solution reduces the motor speed to less than 11,000 by adjusting the motor parameters and winding scheme, thereby canceling the setting of the reduction gear, and changing the front section of the rotor shaft to make an M10 thread for direct output, which reduces noise and is more suitable for small-scale household grinding.

Description of drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

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

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of no conflict, the embodiments of the application and the features in the embodiments can be combined with each other.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" and "top/bottom" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "set with", "set/connected", "connected", etc. should be understood in a broad sense, such as "connected", which can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Below in conjunction with accompanying drawing, the utility model is described in detail.

A household low-noise angle grinder, comprising a left casing 16 and a right casing 8, which are movably connected. After the left casing 16 and the right casing 8 are connected, an inner flange 2, a grinding wheel, a grinding wheel cover 3 and an outer flange 1 are installed respectively. The left casing 16 and the right casing 8 are provided with a driving mechanism. 9. The first bearing 4 adopts 6001 bearings, the second bearing 9 adopts 607 bearings, and the rotor 14 passes through the stator 15 and is fixed in the left casing 16 and the right casing 8 .

A carbon brush 10 and a brush holder 11 are installed on the inside of the right casing 8. The carbon brush 10 is also called a brush, and as a sliding contact, it is widely used in many electrical equipment. Carbon brush 10 mainly includes graphite, fat impregnated graphite, metal (containing copper, silver) graphite in product application materials. The carbon brush 10 is a device for transmitting energy or signals between the fixed part and the rotating part of a motor or generator or other rotating machinery. It is generally made of pure carbon plus a coagulant.

There is a control component on the inside of the right case 8. The control component includes the control switch 12 and the control switch 12 for the power cord used to connect to the power supply. The external set of the power cord is equipped with a protective cover 13, the outside of the right case 8 is installed with self -lock sales 5, spring 6 and self -locking 5 -phase self -lock cap. Shell 16 and right case 8 are fixed by self -attack screws to improve the connection stability of the left shell 16 and right case 8.

How to use: After the first bearing 4 and the second bearing 9 are press-fitted at both ends of the rotor 14, pass through the stator 15 and fix it on the right casing 8, the self-locking pin 5, the spring 6 and the self-locking cap 7 are installed on the outside of the right casing 8, the control switch 12, the carbon brush 10, the brush holder 11 and the protective cover 13 for protecting the power line are all arranged on the inside of the right casing 8, and finally the left casing 16 is correspondingly installed through the corresponding installation hole provided on the right casing 8, and the fixed left casing 16 is fixed by self-tapping screws Fix with the right casing 8, and finally install the outer flange 1, the inner flange 2, the grinding wheel and the grinding wheel cover 3 to realize the installation. After the installation, plug in the power supply, input 220v alternating current, and turn on the control switch 12 to connect the alternating current to the stator 15, so that the rotor 14 rotates according to the design direction and generates speed and torque.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the 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.