CN219005635U

CN219005635U - Polishing machine

Info

Publication number: CN219005635U
Application number: CN202320012400.9U
Authority: CN
Inventors: 贺永
Original assignee: Ningbo Angsi Tools Co ltd
Current assignee: Ningbo Angsi Tools Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-05-12
Anticipated expiration: 2033-01-04

Abstract

The polishing machine comprises a machine shell and a head shell arranged at the upper end of the machine shell, wherein a motor is arranged in the machine shell, and a first output shaft in linkage connection with a rotating shaft of the motor is arranged in the head shell; an inner shell is arranged at the upper end of the shell, and comprises a left shell and a right shell; the inner shell is internally provided with a containing cavity, the right shell is provided with a first through hole, a rotating shaft of the motor is coaxially connected with a second output shaft, the upper end of the second output shaft is provided with a first bevel gear, and the first bevel gear penetrates through the first through hole to extend into the containing cavity; the left shell is provided with a second through hole, the first output shaft penetrates through the second through hole to extend into the accommodating cavity, a second bevel gear is coaxially arranged on the first output shaft, and the second bevel gear is positioned in the accommodating cavity and meshed with the first bevel gear; the head shell is covered outside the inner shell; the polishing machine has the advantages of water resistance, shock resistance, good heat dissipation effect and convenient use.

Description

Polishing machine

Technical Field

The utility model relates to the technical field of polishing machines, in particular to a polishing machine.

Background

Polishers, also known as grinders, are often used for mechanical grinding, polishing and waxing. The working principle is as follows: the motor drives the sponge or wool polishing disc arranged on the polishing machine to rotate at a high speed, and the polishing disc and the polishing agent jointly act and rub the surface to be polished, so that the purposes of removing paint surface pollution, oxide layers and shallow marks can be achieved. The existing handheld polishing machine is generally powered by arranging a battery in the machine body or connecting a power line outside the machine body, so that the handheld polishing machine is inconvenient when the battery needs to be replaced or the power line is connected; after the handheld polishing machine works for a long time, the motor arranged in the handheld part is often high in temperature, the handheld polishing machine must stop working, and the handheld polishing machine can continue to operate after waiting for cooling, so that the working efficiency is greatly influenced. This is because the assembly relationship between the housing and the motor determines that there is always a gap between the motor and the housing, and thus the efficiency of heat conduction is low, so that the temperature of the motor often exceeds the temperature range for stable operation after a long period of operation. The existing polishing machine is generally provided with a heat dissipation hole on the shell to dissipate heat of the motor, but the heat dissipation hole causes the polishing machine to be easy to enter water and short-circuit, and the service life of the polishing machine is influenced.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a polishing machine with a more reasonable structure aiming at the problems existing in the prior art.

The technical scheme adopted for solving the technical problems is as follows:

the polishing machine comprises a machine shell and a head shell arranged at the upper end of the machine shell, wherein a motor is arranged in the machine shell, a first output shaft which is in linkage connection with a rotating shaft of the motor is arranged in the head shell, the output end of the first output shaft is in linkage connection with a polishing disc, and the polishing disc is positioned at the outer side of the head shell; an inner shell is arranged at the upper end of the shell, and comprises a left shell and a right shell which are mutually matched; the right shell is provided with a first through hole which is communicated with the shell and the accommodating cavity, a rotating shaft of the motor is coaxially connected with a second output shaft, a first bevel gear is arranged at the upper end of the second output shaft, and the first bevel gear penetrates through the first through hole and extends into the accommodating cavity; the left side of the left shell is provided with a second through hole, the first output shaft penetrates through the second through hole to extend into the accommodating cavity, a second bevel gear is coaxially arranged on the first output shaft, and the second bevel gear is positioned in the accommodating cavity and meshed with the first bevel gear; the first output shaft is rotatably connected with the inner shell through the bearing; the head shell is covered outside the inner shell and is detachably connected with the inner shell;

the lower extreme of casing can be dismantled and be connected with the battery, the lower extreme of casing is equipped with the draw-in groove, the battery be equipped with draw-in groove matched with clamping portion.

Preferably, the polishing device further comprises an eccentric block arranged between the first output shaft and the polishing disc, wherein the first output shaft is eccentrically connected with the polishing disc through the eccentric block, and a balancing weight which is balanced with the polishing disc is arranged on the eccentric block; the eccentric block and the balancing weight are positioned outside the inner shell and the head shell, the inner shell is connected with a protective cover at the inner side of the polishing disc, and the eccentric block and the balancing weight are positioned in the protective cover; the right end of the protective cover is matched with the head shell.

Preferably, the heat dissipation device further comprises a first heat dissipation hole arranged on the protective cover.

Preferably, the polishing device further comprises a limiting seat assembly arranged on the back surface of the polishing disc, and the limiting seat assembly is connected with the eccentric block through a screw.

Preferably, the portable electronic device further comprises a key module, a display screen and a circuit board, wherein the key module and the display screen are arranged at the outer end of the shell, the circuit board is arranged in the shell, and the circuit board is respectively connected with the motor, the key module, the battery and the display screen.

Preferably, the head shell is fixedly connected with the inner shell through a fastener.

Preferably, the right part of the head shell is detachably connected with a back plate, and the back plate is connected with the head shell through a buckle.

Preferably, the head cover further comprises a second heat dissipation hole formed in the head cover.

Preferably, the casing is provided with a hand-held part.

Preferably, an anti-skid sleeve is arranged outside the handheld part.

Preferably, the number of the bearings is two, and the bearings are respectively arranged at two sides of the second bevel gear.

Preferably, the motor is disposed at an inner upper end of the casing.

Compared with the prior art, the utility model has the beneficial effects that:

the polishing machine of the utility model is provided with the inner shell in the head shell, the clearance between the inner shell and the motor rotating shaft, the second output shaft, the first output shaft and the second bevel gear is smaller, the heat conduction efficiency is good, and the second heat dissipation holes arranged on the head shell can play a role in dissipating heat to the inner shell, so that the polishing machine can normally dissipate heat when in short-time use; meanwhile, the head shell and the inner shell are arranged, so that the polishing machine has a certain waterproof and shockproof effect; after the polishing machine is used for a long time, the heat conducted by the inner shell can be directly transferred to the outside of the polishing machine in a mode of disassembling the back plate of the head shell, so that the heat dissipation effect is good, and the polishing machine can be used in a normal temperature range for a long time; the battery is connected to the bottom of the shell through a buckle, so that the battery is convenient to detach and replace; the battery can serve as a base of the polishing machine, so that the polishing machine can be vertically placed; the lateral part of casing is equipped with the display screen, can show battery power, motor rotational speed, convenient to use.

Drawings

Fig. 1 is a perspective view of a polishing machine according to the present utility model.

Fig. 2 is a cross-sectional view of the polishing machine of the present utility model.

Fig. 3 is an exploded view of the polishing machine of the present utility model.

Fig. 4 is a disassembled view of the polishing machine of the present utility model.

Fig. 5 is a battery view of the polishing machine of the present utility model.

Fig. 6 is a disassembled view of the polishing machine of the present utility model.

Reference numerals: 1. a housing; 1a, a first shell; 1b, a second shell; 2. a head shell; 3. a battery; 4. a motor; 41. a rotating shaft; 5. a right housing; 6. a first protective cover; 7. a second output shaft; 8. a first output shaft; 81. a limiting block; 9. an eccentric block; 10. balancing weight; 11. a second bevel gear; 12. a first bearing; 13. a second bearing; 14. polishing disk; 15. a circuit board; 16. a display screen; 17. a left housing; 18. a limit seat assembly; 19. a second protective cover; 20. a first screw; 21. a second screw; 22. an anti-skid sleeve; 231. a rotating speed key; 232. a power switch; 24. a clamping groove.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 6, the polishing machine comprises a machine shell 1 and a head shell 2 arranged at the upper end of the machine shell 1, wherein a motor 4 is arranged in the machine shell 1, the motor 4 is arranged at the upper end of the inner side of the machine shell 1, a first output shaft 8 in linkage connection with a rotating shaft 41 of the motor 4 is arranged in the head shell 2, the output end of the first output shaft 8 is in linkage connection with a polishing disc 14, and the polishing disc 14 is positioned at the outer side of the head shell 2.

An inner shell is arranged at the upper end of the shell 1, and comprises a left shell 17 and a right shell 5 which are matched with each other; the inner shell is internally provided with a containing cavity, the right shell 5 is provided with a first through hole which is communicated with the shell 1 and the containing cavity, a rotating shaft 41 of the motor 4 is coaxially connected with the second output shaft 7, the upper end of the second output shaft 7 is provided with a first bevel gear, and the first bevel gear extends into the containing cavity through the first through hole; the left side of the left shell 17 is provided with a second through hole, the first output shaft 8 passes through the second through hole and extends into the accommodating cavity, the first output shaft 8 is coaxially provided with a second bevel gear 11, and the second bevel gear 11 is positioned in the accommodating cavity and meshed with the first bevel gear; the bearing is arranged in the inner shell, the first output shaft 8 is rotationally connected with the inner shell through the bearing, the number of the bearings is two, the bearing comprises a first bearing 12 and a second bearing 13, and the two bearings are respectively arranged on two sides of the second bevel gear 11; a limiting block 81 is arranged between the first bearing 12 and the second bevel gear 11 in the circumferential direction of the first output shaft 8; the utility model discloses a heat dissipation device, including inner shell, shell 2, fastener, backplate, the shell 2 cover is located the right side casing 5 outsides of inner shell, shell 2 pass through the fastener with inner shell fixed connection, the back of shell 2 is connected with the backplate through the buckle, be equipped with anti-skidding stripe on the backplate, accessible anti-skidding stripe opens the backplate to dispel the heat to the inner shell.

An eccentric block 9 is arranged between the first output shaft 8 and the polishing disk 14, the first output shaft 8 is eccentrically connected with the polishing disk 14 through the eccentric block 9, a balancing weight 10 which is balanced with the polishing disk 14 is arranged on the eccentric block 9, and the balancing weight 10 is connected with the eccentric block 9 through a second screw 21; the eccentric block 9 and the balancing weight 10 are positioned at the outer sides of the inner shell and the head shell 2, the inner shell is connected with a protecting cover at the inner side of the polishing disc 14, the eccentric block 9, the balancing weight 10 and the left shell 17 are positioned in the protecting cover, and the right end of the protecting cover is matched with the head shell 2; the protective cover comprises a first protective cover 6 and a second protective cover 19 which are connected through threads; the back of the polishing disk 14 is provided with a limiting seat assembly 18, and the limiting seat assembly 18 is connected with the eccentric block 9 through a first screw 20.

The lower extreme of casing 1 can be dismantled and be connected with battery 3, the lower extreme of casing 1 is equipped with draw-in groove 24, battery 3 be equipped with draw-in groove 24 matched with clamping portion.

The outer end of the casing 1 is provided with a key module and a display screen 16, the casing 1 is internally provided with a circuit board 15, the circuit board 15 is respectively connected with the motor 4, the key module, the battery 3 and the display screen 16, the key module comprises a rotating speed key 231 and a power switch 232, and the display screen 16 is used for displaying electric quantity information of the battery 3 and rotating speed information of the motor 4.

The casing 1 comprises a first casing 1a and a second casing 1b which are detachably connected, a handheld part is arranged on the casing 1, and an anti-skid sleeve 22 is arranged outside the handheld part.

When the electric quantity display device is used, the holding part of the polishing machine is held by hands, the polishing machine is turned on through the power switch, and the electric quantity of the polishing machine is displayed on the display screen; the rotation speed of the motor is regulated through the rotation speed key, the rotation speed of the motor is displayed on the display screen, meanwhile, under the regulation of the rotation speed key, the motor drives the first output shaft to rotate through the second output shaft, and the first output shaft drives the polishing disc to eccentrically rotate through the eccentric block, so that an object to be polished can be polished through the polishing disc; when the polishing machine is long in service time, the back plate can be opened through the anti-slip stripes so as to radiate heat of the inner shell.

Finally, it should be noted that: the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The polishing machine comprises a machine shell and a head shell arranged at the upper end of the machine shell, wherein a motor is arranged in the machine shell, a first output shaft which is in linkage connection with a rotating shaft of the motor is arranged in the head shell, the output end of the first output shaft is in linkage connection with a polishing disc, and the polishing disc is positioned at the outer side of the head shell; the device is characterized in that an inner shell is arranged at the upper end of the shell, and comprises a left shell and a right shell which are matched with each other; the right shell is provided with a first through hole which is communicated with the shell and the accommodating cavity, a rotating shaft of the motor is coaxially connected with a second output shaft, a first bevel gear is arranged at the upper end of the second output shaft, and the first bevel gear penetrates through the first through hole and extends into the accommodating cavity; the left side of the left shell is provided with a second through hole, the first output shaft penetrates through the second through hole to extend into the accommodating cavity, a second bevel gear is coaxially arranged on the first output shaft, and the second bevel gear is positioned in the accommodating cavity and meshed with the first bevel gear; the first output shaft is rotatably connected with the inner shell through the bearing; the head shell is covered outside the inner shell and is detachably connected with the inner shell;

2. The polishing machine according to claim 1, further comprising an eccentric block arranged between the first output shaft and the polishing disc, wherein the first output shaft is eccentrically connected with the polishing disc through the eccentric block, and a balancing weight balancing the polishing disc is arranged on the eccentric block; the eccentric block and the balancing weight are positioned outside the inner shell and the head shell, the inner shell is connected with a protective cover at the inner side of the polishing disc, and the eccentric block and the balancing weight are positioned in the protective cover; the right end of the protective cover is matched with the head shell.

3. The polisher according to claim 2, further comprising a first heat sink aperture provided on the protective housing.

4. The polishing machine of claim 2, further comprising a retainer assembly disposed on a back surface of the polishing disc, the retainer assembly being connected to the eccentric mass by a screw.

5. The polishing machine of claim 1, further comprising a key module, a display screen, and a circuit board disposed in the housing, wherein the circuit board is connected to the motor, the key module, the battery, and the display screen, respectively.

6. The polisher according to claim 1, wherein the right portion of the head housing is detachably connected with a back plate, the back plate being connected with the head housing by a snap fit.

7. The polisher according to claim 6, further comprising a second heat sink aperture provided on the head housing.

8. The polishing machine of claim 1, wherein the housing is provided with a handle.

9. The polishing machine of claim 8, wherein an anti-slip sleeve is disposed outside the handle.

10. The polishing machine according to claim 1, wherein the number of the bearings is two, and the bearings are provided on both sides of the second bevel gear, respectively.