CN217475616U

CN217475616U - Portable hand-held type machinery polisher

Info

Publication number: CN217475616U
Application number: CN202220247492.4U
Authority: CN
Inventors: 丁朕
Original assignee: Neijiang Power Plant Of Huadian Sichuan Power Generation Co ltd
Current assignee: Neijiang Power Plant Of Huadian Sichuan Power Generation Co ltd
Priority date: 2022-01-31
Filing date: 2022-01-31
Publication date: 2022-09-23
Anticipated expiration: 2032-01-31

Abstract

The utility model relates to a handheld electric tool technical field, specifically speaking relates to a portable hand-held type machinery polisher. The grinding wheel comprises a grab handle, a shell arranged at the front end of the grab handle, a heat dissipation cover arranged at the top of the shell and a grinding wheel arranged at the bottom of the shell, wherein a fixer is arranged at the bottom of the grinding wheel, a heat dissipation fan is arranged below the heat dissipation cover, a motor is arranged inside the grab handle, a fan is arranged on an output shaft of the motor, an auxiliary handle is arranged outside the shell, and a baffle is connected to the bottom of the shell. The utility model relates to a stability when machine function is improved through at polisher internally mounted radiator fan to increase the temperature that the louvre reduced the machine in the machine main part, and the supplementary handle of installation reaches the absorbing effect, and the stability that increases the emery wheel reduces the emergence of accident.

Description

Portable hand-held type machinery polisher

Technical Field

The utility model relates to a handheld electric tool technical field, specifically speaking relates to a portable hand-held type machinery polisher.

Background

At the staff cutting, the working process of polishing, a handheld polisher can be used, and traditional polisher is because the long-time work of machine in the use, the inside can continuously generate heat of machine, if can not obtain timely cooling, the time has long back work efficiency can the step-down, the spare part of machine also can be ageing with higher speed, make the life cycle of machine shorten, and the machine can easily hinder in one's hands in the tiny material that the in-process of polishing splashes out, secondly at the long-time work of machine, incessant vibrations, the emery wheel very easily produces not hard up and drops, produce danger.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable hand-held type machinery polisher to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a portable hand-held mechanical polisher, which comprises a grab handle and a shell arranged at the front end of the grab handle, a heat dissipation cover at the top of the shell and a grinding wheel at the bottom of the shell, wherein a motor is arranged in the grab handle, a fan is arranged on the output shaft of the motor, a first bevel gear is fixedly arranged at one end of the output shaft of the motor, a second bevel gear is meshed below the first bevel gear, a fixed block is arranged below the second bevel gear, the second bevel gear is rotatably arranged at the center of the fixed block through a supporting rotating shaft, one end of the supporting rotating shaft penetrates through the fixed block and is provided with a grinding wheel, the outer side of the shell is provided with an auxiliary grip, the bottom of the shell is provided with a baffle plate below the grab handle, the heat dissipation fan is installed at the top of the supporting rotating shaft, and the grinding disc fixer is arranged at the bottom of the supporting rotating shaft.

As a further improvement of the technical scheme, the left side inside the grab handle is provided with a fixed sleeve ring, the fixed sleeve ring is provided with a plurality of air inlets, the right side wall of the grab handle is provided with a plurality of ventilation openings, the fan is installed in a nested manner on the motor output shaft, and the fan is close to one side of the motor and is fixedly attached with a cover plate.

As a further improvement of the technical scheme, the heat dissipation cover is internally hollow and hemispherical, and a plurality of heat dissipation holes are formed in the inner wall and the outer wall of the heat dissipation cover.

As a further improvement of the technical scheme, the two sides of the shell are symmetrically provided with screw connectors, and the screw connectors are in threaded connection with the auxiliary handle.

As a further improvement of the technical scheme, a first pressure plate is fixedly installed at the bottom thread of the supporting rotating shaft, a plurality of clamping supporting feet are symmetrically arranged at the bottom of the first pressure plate, and the clamping supporting feet are uniformly distributed around the threads at the bottom of the supporting rotating shaft.

As a further improvement of the technical scheme, a second pressure plate is arranged at the top of the grinding disc fixer, a nut is arranged at the bottom of the second pressure plate, the top of the nut is fixedly attached to the bottom of the second pressure plate, and installation knobs are arranged on the two symmetrical outer walls of the nut in a connecting mode.

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

in this portable hand-held type machinery polisher, through the stability when polisher internally mounted radiator fan improves the machine operation to increase the louvre and reduce the temperature of machine in the machine main part, and the supplementary handle of installation reaches absorbing effect, reduce the danger that the machine drops from the hand, the installation baffle prevents splash fish tail staff, and increases the stability of emery wheel and reduces the emergence of accident.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional structure of the utility model;

FIG. 3 is a schematic structural view of the millstone holder of the utility model;

fig. 4 is a schematic view of the structure of the fixing collar of the present invention.

The various reference numbers in the figures mean:

1. a handle; 11. a motor; 12. a vent; 111. a fixed collar; 1111. an air intake; 112. a fan; 113. a first bevel gear;

2. an auxiliary grip; 3. a heat dissipation cover; 31. a heat dissipation fan; 32. a second bevel gear; 33. a support shaft; 34. a fixed block;

4. a housing; 41. a screw interface; 5. a baffle plate; 6. a grinding wheel;

8. a millstone holder; 81. a first pressure plate; 82. a clamping supporting leg; 83. a second pressure plate; 84. installing a knob; 85. and a nut.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-4, the present embodiment provides a portable hand-held mechanical sander, which includes a handle 1 and a housing 4 installed at the front end of the handle 1, the handle 1 is cylindrical, and increases the contact area with the palm when in use, so as to facilitate the user to better hold, the housing 4 is embedded on the left side of the handle 1 and has a cylindrical shape, so that the heat can be dispersed, thereby preventing the machine from overheating, an auxiliary handle 2 is installed on the outer side of the housing 4, so that the risk of dropping the machine caused by vibration is reduced when the user uses the sander, and a plurality of openings are installed on the left side of the housing 4, so that the heat dissipated from the interior of the sander can be rapidly dissipated, in addition, a heat dissipating cover 3 is installed on the top of the housing 4, and has a plurality of heat dissipating openings at the top thereof, so that the heat can be dissipated better, and a heat dissipating fan 31 fixedly connected to a supporting shaft 33 is installed inside the heat dissipating cover 3, the heat generated during the operation of the machine is dissipated through the plurality of heat dissipating openings at the top of the heat dissipating cover 3, in addition, the motor 11 is installed inside the handle 1, the motor 11 is powered on to drive the machine to operate, the output shaft of the motor 11 is connected with the fan 112, the motor 11 is powered on to drive the fan 112 to rotate, so that the heat is discharged through the opening at the left side of the shell 4, the top of the output shaft of the motor 11 is fixedly installed with the first bevel gear 113, the lower part of the first bevel gear 113 is engaged with the second bevel gear 32, the first bevel gear 113 rotates to drive the second bevel gear 32 to rotate, the lower part of the second bevel gear 32 is provided with the fixing block 34 for increasing the stability of the second bevel gear 32, the second bevel gear 32 is rotatably installed at the center of the fixing block 34 through the supporting rotating shaft 33, one end of the supporting rotating shaft 33 penetrates through the fixing block 34 to be installed with the grinding wheel 6, the supporting rotating shaft 33 is used for driving the heat dissipating fan 31 to operate and fixing the grinding wheel 6 at the bottom, the bottom of the shell 4 is provided with a baffle 5 to prevent the hand from being scratched by splashes generated by the machine during working, and the bottom of the supporting rotating shaft 33 is provided with a grinding disc fixer 8 to improve the stability of the grinding wheel 6.

Furthermore, a fixed lantern ring 111 is arranged on the left side inside the grab handle 1, the outer wall of the fixed lantern ring 111 is fixedly attached to the inner wall of the grab handle 1, a plurality of air inlets 1111 are formed in the fixed lantern ring 111, and a plurality of ventilation openings 12 are formed in the right side wall of the grab handle 1, so that air circulation in the grab handle 1 is facilitated, heat dissipation is accelerated, in addition, the fixed lantern ring 111 is in a circular ring shape, the outer wall of the fixed lantern ring can be better attached to the inner wall of the grab handle 1, the stability of the motor 11 is improved, the danger that the motor 11 moves after long-time vibration is prevented, meanwhile, the vibration force of a palm contact surface is reduced, the safety is improved, a fan 112 is connected to an output shaft of the motor 11, a cover plate is arranged on one side, close to the motor 11, of the fan 112, partial dust and debris can be prevented from entering the grab handle 1, the failure rate of the motor 11 is reduced, and partial heat can be prevented from flowing into the grab handle 1, the motor 11 is prevented from overheating, and safety is increased.

In addition, the inside of the heat dissipation cover 3 is a hollow hemisphere, so that heat can not be gathered inside the machine to cause overheating, and a plurality of heat dissipation holes are formed in the inner wall and the outer wall of the heat dissipation cover 3, so that heat generated by the machine can be discharged more quickly through the heat dissipation fan 31 below the heat dissipation cover.

Besides, the spiral connectors 41 of the auxiliary handle 2 are symmetrically arranged on the two sides of the shell 4, the auxiliary handle 2 enables a worker to hold the machine with two hands at work, stability is improved, and the risk that the machine drops is reduced.

Still further, the bottom screw thread department fixed mounting who supports pivot 33 has first pressure plate 81, area of contact is bigger when making emery wheel 6 install in first pressure plate 81 bottom, increase frictional force, it is not hard up to reduce emery wheel 6 at the during operation, the potential safety hazard that drops the production, the bottom symmetry of first pressure plate 81 is provided with a plurality of screens spike 82, its evenly distributed is around the screw thread that supports the pivot 33 bottom, can be better and emery wheel 6 on the card hole carry on spacingly, make emery wheel 6 installation after can more stable.

Still further, the top of mill fixer 8 is provided with second pressure plate 83, increase the frictional force to emery wheel 6, make it more stable, the bottom of second pressure plate 83 is provided with nut 85, the top of nut 85 and the fixed laminating in bottom of second pressure plate 83, nut 85 and the screw thread rotation who supports the pivot 33 bottom are connected, form stable structure, make the better laminating of emery wheel 6 between first pressure plate 81 and second pressure plate 83, and the bilateral symmetry wall connection of nut 85 is provided with installation knob 84, traditional method of dismantling emery wheel 6 with the instrument can be abandoned to this installation knob 84, can directly trade the serious emery wheel 6 of wearing and tearing with the hand, increase the convenience that the machine used.

When the portable handheld sander of the embodiment is used specifically, after a worker turns on a power supply, the worker presses a switch, two hands respectively control the handle 1 and the auxiliary handle 2, a current causes the motor 11 to start working, the motor 11 drives the output shaft to work, and then the fan 112 mounted on the output shaft of the motor 11 starts working, heat generated inside the sander is discharged through the air outlet on the left side of the housing 4, the motor 11 drives the first bevel gear 113 on the output shaft to rotate, the first bevel gear 113 drives the second bevel gear 32 with the bottom engaged with the first bevel gear 113 to rotate, the fixing block 34 at the bottom of the second bevel gear 32 limits the second bevel gear 32, the second bevel gear 32 drives the supporting rotating shaft 33 connected with the second bevel gear to rotate, the heat-dissipating fan 31 at the top of the supporting rotating shaft 33 starts to discharge heat generated inside through the heat-dissipating holes on the heat-dissipating cover 3 at the top of the supporting rotating shaft 33, the first pressure plate 81 is fixed at the bottom of the supporting rotating shaft 33, the grinding wheel 6 is tightly attached between the first pressure plate 81 and the second pressure plate 83 on the top of the grinding disc holder 8, and the support rotating shaft 33 rotates to drive the grinding wheel 6 to work.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a portable hand-held type machinery polisher, includes grab handle (1) and installs casing (4) at grab handle (1) front end to and heat exchanger (3) and emery wheel (6) of casing (4) bottom at casing (4) top, its characterized in that: a motor (11) is arranged inside the grab handle (1), a fan (112) is arranged on an output shaft of the motor (11), one end of an output shaft of the motor (11) is fixedly provided with a first bevel gear (113), a second bevel gear (32) is meshed below the first bevel gear (113), a fixed block (34) is arranged below the second bevel gear (32), the second bevel gear (32) is rotatably arranged at the center of the fixed block (34) through a supporting rotating shaft (33), one end of the supporting rotating shaft (33) penetrates through the fixing block (34) and is provided with a grinding wheel (6), an auxiliary grip (2) is arranged on the outer side of the shell (4), a baffle (5) is arranged at the bottom of the shell (4) below the grip (1), the heat dissipation fan (31) is installed at the top of the supporting rotating shaft (33), and the grinding disc fixer (8) is arranged at the bottom of the supporting rotating shaft (33).

2. A portable hand-held machine sander as set forth in claim 1, wherein: the utility model discloses a fan, including grab handle (1), fixed cover ring (111) is provided with on the inside left side of grab handle (1), be provided with a plurality of inlet ports (1111) on the fixed cover ring (111), the right side wall of grab handle (1) is provided with a plurality of vents (12), nested fan (112) of installing on motor (11) output shaft, fan (112) are close to motor (11) one side fixed laminating and have the apron.

3. A portable hand-held machine sander as set forth in claim 1, wherein: the heat dissipation cover is characterized in that the inside of the heat dissipation cover (3) is in a hollow hemispherical shape, and a plurality of heat dissipation holes are formed in the inner wall and the outer wall of the heat dissipation cover (3).

4. A portable hand-held machine sander as set forth in claim 1, wherein: the two sides of the shell (4) are symmetrically provided with screw connectors (41), and the screw connectors (41) are in threaded connection with the auxiliary grip (2).

5. A portable hand-held machine sander as set forth in claim 1, wherein: the bottom screw thread department fixed mounting who supports pivot (33) has first pressure plate (81), the bottom symmetry of first pressure plate (81) is provided with a plurality of screens spike (82), a plurality of screens spike (82) evenly distributed is around the screw thread that supports pivot (33) bottom.

6. A portable hand-held machine sander as set forth in claim 1, wherein: the top of mill dish fixer (8) is provided with second pressure plate (83), the bottom of second pressure plate (83) is provided with nut (85), the top of nut (85) and the fixed laminating in bottom of second pressure plate (83), the bilateral symmetry wall connection of nut (85) is provided with installation knob (84).