CN210388708U

CN210388708U - Angle sanding machine

Info

Publication number: CN210388708U
Application number: CN201921178048.6U
Authority: CN
Inventors: 林小艳
Original assignee: Beijing Bodong Bo Civil Engineering Co Ltd
Current assignee: Beijing Bodong Bo Civil Engineering Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-24
Anticipated expiration: 2029-07-24

Abstract

The utility model relates to an angle grinder, which comprises a driving device, one end of the driving device is rotationally connected with a grinding and cutting device, a casing and a head casing are sleeved outside the driving device and the polishing and cutting device, the head casing is fixedly connected with the casing, the casing sleeves the driving device inside, the driving device comprises a rotor and a rotating shaft rotationally connected with the rotor, the head casing sleeves the polishing and cutting device inside, the polishing and cutting part of the polishing and cutting device is exposed out of the head casing, the polishing and cutting part is a grinding wheel, the driving device is fixedly connected with a heat dissipation device, the heat dissipation device comprises a fixed frame and fan blades, the fixed frame is fixedly connected with the rotating shaft and surrounds the rotor, the side wall of the fixed frame opposite to the rotor is fixedly connected with the fan blades, an air inlet and an air outlet are arranged on the side wall of the shell, and the air inlet and the air outlet are oppositely arranged on two sides of the length direction of the heat dissipation device. The utility model discloses high-efficient radiating effect has.

Description

Angle sanding machine

Technical Field

The utility model belongs to the technical field of electric tool's technique and specifically relates to an angle grinder is related to.

Background

In the process of steel bonding reinforcement construction, before bonding, an adherend is firstly subjected to surface treatment, so that the surface is clean, free of oil, floating ash and loose structure, and kept dry and rough. Wherein the surface of the steel part is polished by a polishing machine until the metal luster appears.

However, the polishing machine usually generates a large amount of heat during the operation, and the polishing machines on the market only have some heat dissipation holes on the casing opposite to the power device, so that the heat cannot be dissipated efficiently after the polishing machine works for a long time, thereby reducing the working efficiency of the polishing machine and shortening the service life of the polishing machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an angle grinder, it has high-efficient radiating effect.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an angle grinder, including drive arrangement, drive arrangement's one end is rotated and is connected with and polishes cutting device, be equipped with casing and head shell at drive arrangement and polishing cutting device overcoat, head shell and casing fixed connection, the casing is established drive arrangement cover in inside, drive arrangement includes rotor and the axis of rotation of being connected with the rotor rotation, head shell will polish the cutting device cover and establish inside, polish cutting device's polishing cutting part and expose from the head shell, polish cutting part and be the emery wheel, fixedly connected with heat abstractor on the drive arrangement, heat abstractor includes mount and flabellum, the mount encloses with axis of rotation fixed connection and establish the rotor, mount and relative lateral wall and flabellum fixed connection of rotor, air intake and air outlet have been seted up on the casing lateral wall, the air intake sets up the both sides at heat abstractor's length direction with the air outlet relatively.

Through adopting above-mentioned technical scheme, through heat abstractor's setting, realize high efficiency's heat dissipation.

The utility model discloses further set up to: the mount includes solid fixed ring and stationary blade, gu fixed ring cover establish in the axis of rotation and with axis of rotation fixed connection, gu fixed ring sets up with the rotor relatively, gu fixed ring's diameter is greater than the width of rotor and is less than the inside width of casing, gu on fixed ring and the rotor relative lateral wall and along gu fixed ring's circumference equidistance set up and with stationary blade fixed connection, stationary blade one end and solid fixed ring fixed connection, the other end stretches out to the direction of keeping away from the stationary blade, and the stationary blade encloses the rotor and establishes.

Through adopting above-mentioned technical scheme, through the setting of mount, realize enclosing drive arrangement and establish, be convenient for effectively dispel the heat.

The utility model discloses further set up to: the fan blades are spiral.

Through adopting above-mentioned technical scheme, be spiral helicine setting through the flabellum, realize producing bigger wind-force in the flabellum rotation process.

The utility model discloses further set up to: the fixing piece is provided with a plurality of ventilation holes.

Through adopting above-mentioned technical scheme, through the setting of ventilation hole, realize that the wind part that gets into from the air intake gets into through the ventilation hole to the mobility of messenger's increase wind.

The utility model discloses further set up to: an auxiliary handle is fixedly connected to one end, close to the head shell, of the outer side wall of the machine shell, one end of the auxiliary handle is fixedly connected with the machine shell, and the other end of the auxiliary handle extends out in the direction far away from the machine shell.

Through adopting above-mentioned technical scheme, through the setting of vice handle, realize being convenient for better control emery wheel and polish cutting operation.

The utility model discloses further set up to: the auxiliary handle is in threaded connection with the side wall of the shell.

Through adopting above-mentioned technical scheme, through vice handle and casing threaded connection, realize the nimble dismantlement of vice handle.

The utility model discloses further set up to: one side of the auxiliary handle facing the grinding wheel is fixedly connected with a protection plate, the length direction of the protection plate is the same as that of the auxiliary handle, and the length of the protection plate is larger than that of the auxiliary handle.

Through adopting above-mentioned technical scheme, through the setting of guard plate, realize getting up the protection of sub-handle, prevent that the spark that is splashed from hindering when the staff holds sub-handle.

The utility model discloses further set up to: one end of the protection plate, which is far away from the machine shell, is bent towards the direction of the auxiliary handle.

Through adopting above-mentioned technical scheme, through the guard plate to the bending of sub handle direction, realize better enclosing sub handle and establish to better protection sub handle.

The utility model discloses further set up to: a support ring is fixedly connected between the auxiliary handle and the protection plate, and the axial direction of the support ring is vertical to the length direction of the auxiliary handle.

Through adopting above-mentioned technical scheme, through the setting of support ring, realize fixing guard plate and vice handle in a flexible way, thereby and make the finger insert better fixed guard plate on the support ring.

To sum up, the utility model discloses a beneficial technological effect does:

1. the driving device is conveniently surrounded by the fixing frame and the fan blades in a matched manner, so that the driving device can effectively dissipate heat;

2. through the arrangement of the vent holes, more wind flows, so that more effective heat dissipation is realized;

3. through the arrangement of the protection plate, the hand held on the auxiliary handle is flexibly protected.

Drawings

Figure 1 is a schematic view of the construction of an angle grinder;

FIG. 2 is a schematic view of the configuration of the polishing and cutting device;

FIG. 3 is a schematic view of the structure of the driving device;

FIG. 4 is a schematic structural diagram of a heat dissipation device;

fig. 5 is an exploded view of the secondary handle.

In the figure, 1, a driving device; 11. a rotor; 12. a commutator; 13. a rotating shaft; 14. a first gear; 15. a second gear; 2. polishing the cutting device; 21. a grinding wheel; 22. an output shaft; 23. a front cover; 24. pressing the mixture into tablets; 3. a housing; 31. an air inlet hole; 32. an air outlet; 4. a head shell; 5. a protective cover; 6. a heat sink; 61. a fixed mount; 611. a fixing ring; 612. a fixing sheet; 6121. a vent hole; 62. a fan blade; 7. an auxiliary handle; 8. a protection plate; 9. and (3) supporting the ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to the figures 1, 3, for the utility model discloses an angle grinder, including drive arrangement 1, drive arrangement 1's one end is rotated and is connected with and polishes cutting device 2, be equipped with casing 3 and head shell 4 at drive arrangement 1 with polish 2 overcoat of cutting device, casing 3 is established drive arrangement 1 cover in inside, head shell 4 will polish 2 covers of cutting device and establish in inside, thereby it is convenient for polish the cutting operation to expose from head shell 4 to polish cutting device 2 polishes cutting part wherein, and head shell 4 and casing 3 fixed connection, drive through drive arrangement 1 and polish cutting device 2 and realize polishing to the steel surface.

Referring to fig. 2 and 3, the polishing and cutting device 2 includes a grinding wheel 21, an output shaft 22 fixedly connected to the grinding wheel 21 and penetrating through the grinding wheel 21, one end of the output shaft 22 is fixedly connected to the driving device 1, a front cover 23 and an upper pressing plate 24 are further sleeved on a free end of the output shaft 22, the front cover 23 sleeved on the output shaft 22 is fixedly connected to the output shaft 22, the grinding wheel 21 is sleeved on one end of the output shaft 22 penetrating through the front cover 23 and rotatably connected to the output shaft 22, the upper pressing plate 24 is sleeved on one end of the output shaft 22 penetrating through the grinding wheel 21, so that the grinding wheel 21 is disposed between the upper pressing plate 24 and the front cover 23, and the grinding wheel 21 is fixedly. The front cover 23 is fixedly connected with a protective cover 5, the protective cover 5 is covered on one side of the grinding wheel 21, and a part of the grinding wheel 21 is covered by the protective cover 5, so that the grinding wheel 21 which rotates rapidly is prevented from damaging people.

The driving device 1 comprises a rotor 11, a commutator 12 is fixedly connected with one end of the rotor 11 in the length direction, a rotating shaft 13 is rotatably connected with the other end of the rotor 11, a first gear 14 is rotatably connected with the free end of the rotating shaft 13, a second gear 15 is meshed with the first gear 14, and the second gear 15 is fixedly connected with an output shaft 22 of the polishing and cutting device 2. After the driving device 1 is started, the rotating shaft 13 rotates to drive the first gear 14 to rotate, so that the second gear 15 meshed with the first gear 14 rotates to drive the output shaft 22 fixedly connected with the second gear 15 to rotate, and the grinding wheel 21 fixedly connected with the output shaft 22 rotates rapidly.

Referring to fig. 4, a heat sink 6 is disposed on the output shaft 22 of the rotor 11 opposite to the rotor 11, the heat sink 6 is fixedly connected to the rotating shaft 13, and the heat generated by the rotor 11 is dissipated in time by the heat sink 6. The heat dissipation device 6 includes a fixing frame 61 and fan blades 62, the fixing frame 61 includes a fixing ring 611 and a fixing piece 612, the fixing ring 611 is sleeved on the rotating shaft 13 and is fixedly connected with the rotating shaft 13, the fixing ring 611 is arranged opposite to the rotor 11, and the diameter of the fixing ring 611 is greater than the width of the rotor 11 and smaller than the width inside the casing 3. The fixing ring 611 is fixedly coupled to the fixing piece 612 on a side wall opposite to the rotor 11 and at an equal distance in a circumferential direction of the fixing ring 611. One end of the fixing piece 612 is fixedly connected with the fixing ring 611, the other end extends in a direction away from the fixing piece 612, and the rotor 11 is surrounded by the fixing pieces 612 arranged along the circumferential direction of the fixing ring 611. The side wall of the fixing plate 612 opposite to the rotor 11 is fixedly connected with a plurality of fan blades 62, and the fan blades 62 are spiral. The fixing plate 612 is provided with a plurality of vent holes 6121. Referring to fig. 1, the housing 3 covering the outside of the driving device 1 is provided with an air inlet hole 31 and an air outlet hole 32, wherein the air inlet hole 31 is provided with one side of the heat sink 6 close to the polishing and cutting device 2, and the air outlet hole 32 is provided with one side of the heat sink 6 far from the polishing and cutting device 2. Air enters the inside of the machine shell 3 from the air inlet hole 31, passes through the fixing plate 612 through the air vent 6121 on the fixing plate 612, rotates with the fixing frame 61 fixedly connected with the rotating shaft 13, further drives the fan blades 62 to rotate, and the heat generated by the rotor 11 is quickly taken away by the airflow generated by the rotation of the fan blades 62 and discharged from the air outlet hole 32, so that efficient and quick heat dissipation is realized.

Referring to fig. 5, an auxiliary handle 7 is fixedly connected to an end of the outer side wall of the housing 3 close to the head housing 4, the auxiliary handle 7 is in threaded connection with the side wall of the housing 3, one end of the auxiliary handle 7 is fixedly connected to the housing 3, and the other end of the auxiliary handle 7 extends out in a direction away from the housing 3. A protection plate 8 is fixedly connected to one side, facing the grinding wheel 21, of the auxiliary handle 7, the length direction of the protection plate 8 is the same as that of the auxiliary handle 7, the length of the protection plate 8 is larger than that of the auxiliary handle 7, and one end, far away from the machine shell 3, of the protection plate 8 is bent towards the auxiliary handle 7, so that the whole auxiliary handle 7 is protected from one side, facing the grinding wheel 21, of the auxiliary handle 7. A support ring 9 is fixedly connected between the auxiliary handle 7 and the protection plate 8, the axial direction of the support ring 9 is perpendicular to the length direction of the auxiliary handle 7, and the support ring 9 is fixed at the midpoint position of the length direction of the auxiliary handle 7, so that when a person holds the auxiliary handle 7 by hand, one finger can be inserted into the support ring 9, and the trend of the grinding wheel 21 can be controlled more flexibly through the auxiliary handle 7. The arrangement of the guard plate 8 prevents the hand held by the sub-handle 7 from being injured by sparks generated when the grinding wheel 21 cuts and grinds the steel material.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an angle grinder, including drive arrangement (1), the one end of drive arrangement (1) is rotated and is connected with and polishes cutting device (2), be equipped with casing (3) and first shell (4) at drive arrangement (1) and polishing cutting device (2) overcoat, first shell (4) and casing (3) fixed connection, casing (3) are established drive arrangement (1) cover inside, drive arrangement (1) include rotor (11) and rotate axis of rotation (13) of being connected with rotor (11), first shell (4) will polish cutting device (2) cover and establish inside, polish the polishing cutting part of cutting device (2) and expose from first shell (4), polish the cutting part and be emery wheel (21), its characterized in that: fixedly connected with heat abstractor (6) on drive arrangement (1), heat abstractor (6) are including mount (61) and flabellum (62), mount (61) and axis of rotation (13) fixed connection and enclose rotor (11) and establish, mount (61) and the relative lateral wall of rotor (11) and flabellum (62) fixed connection, air intake and air outlet have been seted up on casing (3) lateral wall, the air intake sets up the both sides in the length direction of heat abstractor (6) with the air outlet relatively.

2. The angle grinder of claim 1, wherein: the fixing frame (61) comprises a fixing ring (611) and a fixing piece (612), the fixing ring (611) is sleeved on the rotating shaft (13) and is fixedly connected with the rotating shaft (13), the fixing ring (611) is arranged opposite to the rotor (11), the diameter of the fixing ring (611) is larger than the width of the rotor (11) and smaller than the width of the inner part of the casing (3), the fixing ring (611) is arranged on the side wall opposite to the rotor (11) at equal intervals along the circumferential direction of the fixing ring (611) and is fixedly connected with the fixing piece (612), one end of the fixing piece (612) is fixedly connected with the fixing ring (611), the other end of the fixing piece (612) extends out in the direction far away from the fixing piece (612), and the fixing piece (612.

3. The angle grinder of claim 1, wherein: the fan blades (62) are helical.

4. The angle grinder of claim 2, wherein: the fixing plate (612) is provided with a plurality of vent holes (6121).

5. The angle grinder of claim 1, wherein: one end of the outer side wall of the machine shell (3) close to the head shell (4) is fixedly connected with an auxiliary handle (7), one end of the auxiliary handle (7) is fixedly connected with the machine shell (3), and the other end of the auxiliary handle (7) extends out in the direction far away from the machine shell (3).

6. The angle grinder of claim 5, wherein: the auxiliary handle (7) is in threaded connection with the side wall of the machine shell (3).

7. The angle grinder of claim 5, wherein: one side of the auxiliary handle (7) facing the grinding wheel (21) is fixedly connected with a protection plate (8), the length direction of the protection plate (8) is the same as that of the auxiliary handle (7), and the length of the protection plate (8) is larger than that of the auxiliary handle (7).

8. The angle grinder of claim 7, wherein: one end of the protection plate (8) far away from the machine shell (3) is bent towards the direction of the auxiliary handle (7).

9. The angle grinder of claim 7, wherein: a support ring (9) is fixedly connected between the auxiliary handle (7) and the protection plate (8), and the axial direction of the support ring (9) is perpendicular to the length direction of the auxiliary handle (7).