CN210099940U

CN210099940U - Electric hammer with heat dissipation function

Info

Publication number: CN210099940U
Application number: CN201920653944.7U
Authority: CN
Inventors: 王亮
Original assignee: NINGBO LIANGYE ELECTRIC APPLIANCE CO Ltd
Current assignee: NINGBO LIANGYE ELECTRIC APPLIANCE CO Ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-02-21
Anticipated expiration: 2029-05-09

Abstract

The utility model discloses an electric hammer with heat dissipation function, include electric hammer body, electric hammer main shaft and shake hands, the fixed surface of electric hammer main shaft is connected with driven bevel gear, driving motor's output fixedly connected with axis of rotation, the axis of rotation is close to the fixed surface at middle part and is connected with the flabellum, driving motor's the inside heat-conducting layer that has heat conduction silicone grease of packing of circumference fixed surface, the surface of heat-conducting layer is rotated through the bearing and is connected with the heat conduction post, the circumference fixed surface of heat conduction post is connected with the fin, the surface of fin is rotated through the bearing and is connected with heat dissipation mechanism. The utility model discloses an above-mentioned isotructure's cooperation has solved that current electric hammer radiating effect is relatively poor, and the heat is difficult to timely dissipation or discharge, causes its inside high temperature, causes the harm to driving motor or inside electronic components easily to the problem that the life to the electric hammer produced the influence.

Description

Electric hammer with heat dissipation function

Technical Field

The utility model relates to an electric tool technical field specifically is an electric hammer with heat dissipation function.

Background

The electric hammer is an electrodynamic type rotary hammer drill with a safety clutch attached with a pneumatic hammering mechanism, the electric hammer is a tool for punching, crushing and grooving on hard and brittle materials such as concrete and rock, the impact force is large, the punching speed is high, the hole forming precision is high, the electric hammer drill is generally used in building installation engineering, when the electric hammer is used for punching, a large amount of heat can be generated by high-speed rotation of a motor, the heat dissipation effect of the existing electric hammer is poor, the heat is difficult to dissipate or discharge in time, the internal temperature is overhigh, damage is easily caused to a driving motor or an internal electronic component, the service life of the electric hammer is influenced, and therefore improvement is needed.

Disclosure of Invention

The utility model aims to provide an electric hammer with heat dissipation function, which accelerates the convection speed between the outside air and the air in the electric hammer body through the arrangement of the fan blades, the air inlet and the air outlet, and simultaneously the fan blades rotate, the heat dissipation fins and the heat dissipation fins can be blown to rotate under the action of wind force, the heat conduction columns and the heat dissipation columns can be driven to rotate, the air flow is accelerated, make the heat conduction post, the fin, the heat dissipation post can be faster dissipated with the heat dissipation on heat dissipation fin surface, avoided this internal high temperature of electric hammer and led to the fact the advantage of harm to driving motor or inside electronic components, it is relatively poor to have solved current electric hammer radiating effect, the heat is difficult to timely dissipation or discharge, causes its inside high temperature, cause the harm to driving motor or inside electronic components easily, thereby produce the problem of influence to the life of electric hammer.

In order to achieve the above object, the utility model provides a following technical scheme: an electric hammer with a heat dissipation function comprises an electric hammer body, an electric hammer main shaft and a handle, wherein the handle is fixedly connected to the right side of the electric hammer body close to the top, the surface of the electric hammer main shaft is fixedly connected with a driven bevel gear, the bottom of the inner wall of the electric hammer body is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a rotating shaft, the surface of the rotating shaft close to the top end is fixedly connected with a driving bevel gear, the surface of the driving conical gear is meshed with the driven conical gear, the surface of the rotating shaft close to the middle part is fixedly connected with fan blades, the circumferential surface of the driving motor is fixedly connected with a heat conduction layer filled with heat conduction silicone grease, the surface of the heat conduction layer is rotationally connected with a heat conduction column through a bearing, the circumferential surface of the heat conduction column is fixedly connected with a radiating fin, and the surface of the radiating fin is rotatably connected with a radiating mechanism through a bearing.

Preferably, the front side of the electric hammer body close to the middle part is provided with an air inlet, and the left side and the right side of the electric hammer body and the bottom part are provided with air outlets.

Preferably, the inner walls of the air inlet and the air outlet are fixedly connected with dust screens.

Preferably, the number of the radiating fins on the same horizontal plane of the heat conduction column is two, and the two radiating fins are symmetrically distributed on the heat conduction column.

Preferably, the heat dissipation mechanism comprises a heat dissipation column, the heat dissipation column is rotatably connected to the heat dissipation plate through a bearing, and the surface of the heat dissipation column is fixedly connected with a heat dissipation fin.

Compared with the prior art, the beneficial effects of the utility model are that: possess and pass through the flabellum, air intake and air outlet cooperation, the convection velocity of the internal air of external air and electric hammer has been accelerated, make this internal heat of electric hammer can be better transmitted to the external world, simultaneously the flabellum rotates, can blow heat dissipation fin and fin under the effect of wind, can drive heat conduction post and heat dissipation post and rotate, the air flow has been accelerated, make the heat conduction post, the fin, the heat on heat dissipation post and heat dissipation fin surface can be faster dissipated, the radiating effect has been improved, avoided this internal high temperature of electric hammer and lead to the fact the harm to driving motor or inside electronic components, thereby produce the influence to the life of electric hammer body.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a front sectional view of the structure of the present invention;

fig. 3 is an enlarged view of the structure of the present invention at a.

In the figure: the electric hammer comprises an electric hammer body 1, an electric hammer main shaft 2, a handle 3, a driven bevel gear 4, a driving motor 5, a rotating shaft 6, a driving bevel gear 7, fan blades 8, a heat conduction layer 9, a heat conduction column 10, a heat radiating fin 11, an air inlet 12, an air outlet 13, a dust screen 14, a heat radiating column 15 and a heat radiating fin 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: an electric hammer with a heat dissipation function comprises an electric hammer body 1, an electric hammer main shaft 2 and a handle 3, wherein the handle 3 facilitates use of the electric hammer body 1, the handle 3 is fixedly connected to the right side, close to the top, of the electric hammer body 1, an air inlet 12 is formed in the front side, close to the middle, of the electric hammer body 1, air outlets 13 are formed in the left side, the right side and the bottom of the electric hammer body 1, when the electric hammer body 1 is used, a driving motor 5 can drive fan blades 8 to rotate, the fan blades 8 rotate, external air can enter from the air inlet 12 and be discharged from the air outlets 13, dust screens 14 are fixedly connected to the inner walls of the air inlet 12 and the air outlets 13, the dust screens 14 prevent external dust from entering the electric hammer body 1, a driven bevel gear 4 is fixedly connected to the surface of the electric hammer main shaft 2, a driving motor 5 is fixedly connected to the bottom of the inner wall of the electric hammer, the driving motor 5 rotates to drive the fan blades 8 and the rotating shaft 6 to rotate, so as to drive the driving bevel gear 7 to rotate, the driving bevel gear 7 drives the driven bevel gear 4 and the electric hammer spindle 2 to rotate, under the action of the fan blades 8, the phenomenon that the internal temperature of the electric hammer body 1 is overhigh during operation and influences the service life of the electric hammer body 1 is avoided, the output end of the driving motor 5 is fixedly connected with the rotating shaft 6, the surface of the rotating shaft 6 close to the top end is fixedly connected with the driving bevel gear 7, the surface of the driving bevel gear 7 is meshed with the driven bevel gear 4, the surface of the rotating shaft 6 close to the middle part is fixedly connected with the fan blades 8, the circumferential surface of the driving motor 5 is fixedly connected with a heat conduction layer 9 filled with heat conduction silicone grease, the surface of the heat conduction layer 9 is rotatably connected with heat conduction columns 10 through, the two heat dissipation fins are symmetrically distributed on the heat conduction column 10, the heat dissipation fins 11 are fixedly connected to the circumferential surface of the heat conduction column 10, the heat dissipation fins 11, the heat dissipation columns 15 and the heat dissipation fins 16 are all made of copper materials or aluminum materials with good heat dissipation performance, the surface of the heat dissipation fins 11 is rotatably connected with a heat dissipation mechanism through bearings, the heat dissipation mechanism comprises the heat dissipation columns 15, the heat dissipation columns 15 are rotatably connected to the heat dissipation fins 11 through bearings, the heat dissipation fins 16 are fixedly connected to the surface of the heat dissipation columns 15, the fan blades 8 rotate, the heat dissipation fins 16 and the heat dissipation fins 11 can be blown under the action of wind, the heat conduction columns 10 and the heat dissipation columns 15 can be driven to rotate, the air flowing speed around the heat conduction columns 10 and the heat dissipation columns 15 is accelerated, the heat on the surfaces of the heat conduction columns 10, the heat dissipation fins 11, the heat dissipation columns 15 and the heat dissipation fins 16 can be dissipated more quickly, the heat dissipation effect is improved And thus has an influence on the service life of the electric hammer body 1.

The working principle is as follows: when the electric hammer with the heat dissipation function is used, when the electric hammer body 1 is used, the driving motor 5 can drive the fan blades 8 to rotate, the fan blades 8 rotate, so that external air can enter from the air inlet 12 and be discharged from the air outlet 13, the dustproof net 14 prevents external dust from entering the electric hammer body 1, the convection speed of the electric hammer body 1 and the external air is accelerated, heat in the electric hammer body 1 can be well exchanged with the external air, the heat dissipation effect is improved, meanwhile, under the action of the heat conduction layer 9, heat on the surface of the driving motor 5 can be transmitted to the heat conduction column 10, the fan blades 8 rotate, the heat dissipation fins 16 and the heat dissipation fins 11 can be blown under the action of wind, the heat conduction column 10 and the heat dissipation columns 15 can be driven to rotate, the air flowing speed around the heat conduction column 10 and the heat dissipation columns 15 is accelerated, and the heat conduction column 10, the heat dissipation fins 11, The heat on the surfaces of the heat dissipation columns 15 and the heat dissipation fins 16 can be dissipated more quickly, so that the heat dissipation effect is improved, the damage to the driving motor 5 or the internal electronic components caused by overhigh temperature in the electric hammer body 1 is avoided, and the service life of the electric hammer body 1 is influenced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric hammer with heat dissipation function, includes electric hammer body (1), electric hammer main shaft (2) and (3) of shaking hands, and holds hand (3) fixed connection and be close to the right side at top in electric hammer body (1), its characterized in that: the surface of the electric hammer main shaft (2) is fixedly connected with a driven bevel gear (4), the bottom of the inner wall of the electric hammer body (1) is fixedly connected with a driving motor (5), the output end of the driving motor (5) is fixedly connected with a rotating shaft (6), the surface of the rotating shaft (6) close to the top end is fixedly connected with a driving bevel gear (7), the surface of the driving bevel gear (7) is meshed with the driven bevel gear (4), the surface of the rotating shaft (6) close to the middle part is fixedly connected with a fan blade (8), the circumferential surface of the driving motor (5) is fixedly connected with a heat conduction layer (9) filled with heat conduction silicone grease, the surface of the heat conduction layer (9) is rotationally connected with a heat conduction column (10) through a bearing, the heat-conducting column is characterized in that radiating fins (11) are fixedly connected to the circumferential surface of the heat-conducting column (10), and the surfaces of the radiating fins (11) are rotatably connected with radiating mechanisms through bearings.

2. An electric hammer having a heat dissipating function according to claim 1, wherein: an air inlet (12) is formed in the front side, close to the middle, of the electric hammer body (1), and air outlets (13) are formed in the left side, the right side and the bottom of the electric hammer body (1).

3. An electric hammer having a heat dissipating function according to claim 2, wherein: and the inner walls of the air inlet (12) and the air outlet (13) are fixedly connected with dust screens (14).

4. An electric hammer having a heat dissipating function according to claim 1, wherein: the number of the radiating fins (11) on the same horizontal plane of the heat conducting column (10) is two, and the two radiating fins are symmetrically distributed on the heat conducting column (10).

5. An electric hammer having a heat dissipating function according to claim 1, wherein: the heat dissipation mechanism comprises a heat dissipation column (15), the heat dissipation column (15) is rotatably connected to the heat dissipation sheet (11) through a bearing, and the surface of the heat dissipation column (15) is fixedly connected with a heat dissipation fin (16).