CN112388416A

CN112388416A - Novel grinding machine

Info

Publication number: CN112388416A
Application number: CN202011058015.5A
Authority: CN
Inventors: 叶志浩; 李挺进; 徐宛柘; 潘旭峰; 周浩; 陈敏
Original assignee: Zhejiang Burley Tools Co ltd
Current assignee: Zhejiang Burley Tools Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-02-23
Also published as: WO2022068131A1

Abstract

The invention discloses a novel grinding machine which comprises a grinding disc, a support and a main handle, wherein a rotating seat is arranged on the grinding disc, the support is movably connected to the rotating seat through a locking piece and forms a rotating fulcrum of the grinding disc and the support, and the main handle is movably connected to the other end of the support; the polishing device is characterized by further comprising a driving mechanism, wherein the driving mechanism is vertically arranged above the polishing disc, and the center of the driving mechanism is located on the upper side of the polishing disc. Through vertically putting actuating mechanism in the top of rotatory fulcrum, and the position of vertically putting is actuating mechanism's focus in the upside side of rotatory fulcrum in the top of rotatory fulcrum promptly, compare with the horizontal focus motor that is at the polishing dish center of tradition under, can realize that the polisher can switch in a flexible way between wall and the wall crown of polishing, labour saving and time saving, and exempt from the instrument and switch, improved the efficiency of polishing, strengthened user's the experience of polishing, be favorable to above-mentioned polisher popularization and application on market.

Description

Novel grinding machine

Technical Field

The invention relates to the technical field of wall surface grinding machines, in particular to a novel grinding machine.

Background

The wall polisher is a tool for replacing traditional workers to polish walls by sand paper, articles, so as to achieve the purpose of leveling, dustless and protecting physical and mental health of workers, the working environment is optimized, the working efficiency is improved, the decoration quality is improved, wall polishing is divided into dustless polishing and dustless polishing, machines for polishing the walls are collectively called as the wall polisher, also called as 'wall polisher', 'putty polisher', 'wall grinder', 'white polisher', 'dust-absorbing sander', 'sand paper machine', the names of all the places are different, and the standard name is wall polisher.

The actuating mechanism of traditional polisher is horizontal setting in the top central point department of putting of polishing dish usually, leads to the polishing dish to switch the degree of difficulty between wall and the wall crown of polishing big, and is smooth and easy nimble inadequately, still needs use tools to switch it sometimes, leads to polishing inefficiency, has reduced user's use and has experienced, is unfavorable for above-mentioned polisher popularization and application on market.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the novel grinding machine which is ingenious in structure, can be flexibly switched between a wall to be ground and a wall top, is time-saving and labor-saving, avoids tool switching, improves grinding efficiency, enhances grinding experience of a user, and is beneficial to popularization and application of the grinding machine in the market.

In order to achieve the purpose, the novel grinding machine adopts the following technical scheme that the novel grinding machine comprises a grinding disc, a support and a main handle, wherein a rotating seat is arranged on the grinding disc, the support is movably connected to the rotating seat through a locking piece and forms a rotating fulcrum of the grinding disc and the support, and the main handle is movably connected to the other end of the support; the device also comprises a driving mechanism, wherein the driving mechanism is vertically arranged above the rotating fulcrum, and the center of the driving mechanism is positioned above the rotating fulcrum. Through with actuating mechanism vertical in the top of rotatory fulcrum, and the position of putting vertically is actuating mechanism's focus in the upside side of rotatory fulcrum and is located the upside side of polishing dish in the top of rotatory fulcrum promptly, compare with the horizontal motor that is inclined to the lower at the focus at polishing dish center of tradition, can realize that the polisher can switch in a flexible way between wall and the wall crown of polishing, labour saving and time saving, and exempt from the instrument and switch, the efficiency of polishing has been improved, user's the experience of polishing has been strengthened, be favorable to above-mentioned polisher popularization and application on market.

As a preferable mode of the present invention, the rotation fulcrum is located on a central axis of the polishing disk. The rotary fulcrum is arranged on the central axis of the polishing disc, so that the force applied to the polishing disc is more uniform, the polishing effect of the polishing disc is better, and the use experience of a user can be further enhanced.

In a preferred embodiment of the present invention, the central axis of the driving mechanism and the central axis of the polishing disc are parallel to each other, and the distance between the central axis of the driving mechanism and the central axis of the polishing disc is less than 2/3 times the diameter of the polishing disc. Can effectively guarantee the stability of actuating mechanism in the drive grinding disc rotation in-process, further guarantee the effect of polishing of grinding disc.

As a preferable scheme of the invention, the portable terminal further comprises an auxiliary handle, and the auxiliary handle is detachably connected to the main handle. The length of vice handle can freely alternate length according to user's needs to make the polisher utilization ratio wider, can further strengthen user's use experience.

As a preferable aspect of the present invention, the rotation fulcrum, the bracket, the main handle, and the sub handle have center axes all located on the same straight line. Traditional polisher is when polishing, and the power of applying on the dish of polishing often is not enough even, and the dish of polishing can appear beating in the removal process, hard, the not enough scheduling problem of flexibility ratio, through the central axis setting with rotatory fulcrum, support, main handle and vice handle lie in same straight line, can effectively solve above-mentioned technical problem, can also improve the efficiency of polishing simultaneously greatly, labour saving and time saving reduces the operation degree of difficulty of polisher, and reinforcing user's use is experienced.

As a preferable scheme of the present invention, a movable rod is further disposed at the rotating seat, and the movable rod is detachably inserted into the rotating seat. Through setting up the movable rod, with support demountable installation in roating seat department, the labour saving and time saving reduces the installation degree of difficulty in the time, further guarantees the result of use of polisher.

As a preferable scheme of the invention, a detachable grinding disc cover is arranged on the side edge of the grinding disc, a grinding disc cover is arranged above the grinding disc cover, a dust outlet is arranged at the grinding disc cover, and a dust suction hose is arranged at the dust outlet. Can dismantle the setting of mill cover and further protect the mill, guarantee the result of use of mill simultaneously, reduce the probability that the mill appears beating at the in-process of polishing, the dust outlet can be emptyd the dust centralized processing that produces of mill department with dust absorption hose's setting, further guarantees the cleanliness of the mill service environment of polishing, and the use of reinforcing user is experienced.

As a preferable scheme of the present invention, a head shell is disposed between the rotary seat and the polishing disc, a large gear is installed in the head shell, and a tooth of an output shaft of the driving mechanism drives the large gear. Compare with traditional gear, the gear ratio grow of gear wheel, and transmission efficiency is higher, and the setting of gear wheel further guarantees to polish the stability of the rotation in-process of mill, guarantees the result of use of polisher.

In a preferred embodiment of the present invention, the number of teeth of the motor shaft of the drive mechanism is 3. The gear teeth matched with the large gear are formed on the output shaft, and the number of the gear teeth is 3, so that the gear ratio is increased, and the transmission efficiency is higher.

As a preferable scheme of the present invention, a large end cover is further disposed between the rotary seat and the polishing disc, the large end cover and the head shell form a cavity, and the large gear is mounted in the cavity. The influence of external substances on the large gear is reduced, the service life of the large gear is ensured, and the use cost of a user is reduced.

As a preferred scheme of the present invention, the driving mechanism includes a stator, a rotor, and a heat dissipation blade, and the heat dissipation blade is mounted at the other end of the rotor that rotates at a reduced speed. Install the heat dissipation fan blade in rotor speed reduction's the other end, can effectively reduce actuating mechanism's operation stable, improve actuating mechanism's performance and life, further guarantee the result of use of polisher.

As a preferred scheme of the present invention, the driving mechanism further includes a casing and a heat dissipation blade, and the stator, the rotor and the heat dissipation blade are all installed in the casing. The arrangement of the casing further ensures the service life of the stator, the rotor, the heat dissipation fan blades and the rotor commutator arranged in the casing, and reduces the influence of external substances on the stator, the rotor and the heat dissipation fan blades.

As a preferable scheme of the present invention, a rear cover is provided on an outer cover of the driving mechanism away from the polishing disc, and the driving mechanism is installed in the rear cover. The effect of protection motor is played in the setting of back shroud, further guarantees actuating mechanism's life, reduces user's use cost, and simultaneously, the setting of back shroud makes the whole pleasing to the eye degree of polisher higher, is favorable to the popularization and the application of polisher on market.

Compared with the prior art, the novel grinding machine has the beneficial effects that: according to the novel grinding machine, the driving mechanism is vertically arranged above the rotating fulcrum, the vertically arranged position is above the support, namely the gravity center of the driving mechanism is located above the rotating fulcrum and above the grinding disc, compared with a traditional horizontal motor with the gravity center of the grinding disc below, the novel grinding machine can be flexibly switched between a grinding wall and a wall top, time and labor are saved, tool switching is avoided, grinding efficiency is improved, grinding experience of a user is enhanced, and popularization and application of the grinding machine in the market are facilitated.

Drawings

FIG. 1 is a front view of the novel sander in an embodiment of the present invention;

FIG. 2 is a top view of the novel sander in an embodiment of the present invention;

FIG. 3 is a schematic illustration of a novel sander according to an embodiment of the present invention, shown disassembled;

FIG. 4 is a cross-sectional view of the structure at the grinding disc in the novel sander according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of the attachment of the drive mechanism to the sanding disc of the novel sander in an embodiment of the present invention;

FIG. 6 is a cross-sectional view of the structure taken along line D of FIG. 5;

FIG. 7 is a perspective view of a connecting structure of a driving mechanism and a polishing disc in the novel polishing machine according to the embodiment of the invention;

FIG. 8 is a schematic view of the use of the sanding top of the new sander in an embodiment of the present invention;

fig. 9 is a schematic view of a use state of the novel grinding machine for grinding the side wall in the embodiment of the invention.

Reference numerals: 1. a stator; 2. a rotor; 3. a heat dissipation fan blade; 4. a housing; 5. a rear cover; 6. a rotor commutator; 7. a movable rod; 8. a locking member; 9. a rotation fulcrum; 10. a rotating base; 11. a head shell; 12. a bull gear; 13. a grinding disc cover; 14. a removable burr cover; 15. a support; 16. a main handle; 17. an auxiliary handle; 18. grinding disc; 19. a large end cap; 20. a drive mechanism; 21. a dust outlet; 22. a dust collection hose.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Example (b): as shown in fig. 1 to 9, the novel sander comprises a sanding disc 18, a bracket 15 and a main handle 16, wherein the sanding disc 18 is provided with a rotary base 10 which can enable free rotation between the sanding disc 18 and the bracket 15, the bracket 15 is movably connected to the rotary base 10 through a locking member 8 and forms a rotary fulcrum 9 between the sanding disc 18 and the bracket 15, the locking member 8 can be a locking screw or a locking bolt with a simple structure, so that the installation is facilitated, the manufacturing cost of the sander is reduced, and further, the use cost of a user is reduced, the main handle 16 is movably connected to the other end of the bracket 15, when the sander is in an unused state, the main handle 16 can be detached from the bracket 15, the placement of the sander is facilitated, and the occupation of space by the sander is reduced.

The rotary fulcrum 9 is located on the central axis of the polishing disc 18, and the rotary fulcrum 9 is arranged on the central axis of the polishing disc 18, so that the force applied to the polishing disc 18 is more uniform, the polishing effect of the polishing disc 18 is better, and the use experience of a user can be further enhanced.

The central axis of the driving mechanism 20 and the central axis of the polishing disc 18 are parallel to each other, and the distance C between the central axis of the driving mechanism 20 and the central axis of the polishing disc 18 is less than 2/3 of the diameter B of the polishing disc 18, so that the stability of the driving mechanism 20 in the rotating process of the driving polishing disc 18 can be effectively ensured, and the polishing effect of the polishing disc 18 is further ensured.

Because in the actual use process, the side wall and the ceiling are usually polished, the side wall polishing can be realized in the products on the market, and no additional component is needed, but the ceiling polishing needs to be installed with a topping device instead, the operation is complex and not durable, in order to solve the technical problems, the polisher also comprises a driving mechanism 20 for driving the polishing disc 18 to rotate, the driving mechanism 20 in the embodiment is a series motor, the series motor is vertically arranged above the rotating fulcrum 9, as shown in a part A in figure 4, namely, the mounting position of the driving mechanism 20 is vertically arranged in a way that the gravity center of the series motor is in the middle position, and the position of the series motor is at the forefront of the polishing disc 18, so when the polisher polishes the top, the polishing surface naturally faces upwards, and a certain preset angle also exists when the side wall is polished, simple to use, the convenience can effectively strengthen user's use and experience, and compare with the horizontal motor that is at the focus off-centre at the dish center of polishing of tradition, can realize that the polisher can switch in a flexible way between wall and the wall crown of polishing, and labour saving and time saving, and exempt from the instrument and switch, improved the efficiency of polishing, strengthened user's the experience of polishing, be favorable to above-mentioned polisher popularization and application on market.

The polisher in this embodiment has still set up vice handle 17, and vice handle 17 can dismantle the connection on above-mentioned main handle 16, and the length of vice handle 17 can freely change length according to user's needs to make the polisher utilization ratio wider, can further strengthen user's use experience.

Traditional polisher is when polishing, the power of applying on the dish of polishing often is not enough even, and the dish of polishing can appear beating in the removal process, hard, the scheduling problem inadequately of flexibility ratio, the central axis setting through with fulcrum of rotation 9, support 15, main handle 16 and vice handle 17 lies in same straight line in this implementation, can effectively solve above-mentioned technical problem, can also improve the efficiency of polishing simultaneously greatly, time saving and labor saving reduces the operation degree of difficulty of polisher, the use of reinforcing user is experienced.

The roating seat 10 department still is equipped with the movable rod 7, and above-mentioned movable rod 7 can be dismantled and wear to establish on above-mentioned roating seat 10, through setting up movable rod 7, with support 15 demountable installation in roating seat 10 department, reduces the installation degree of difficulty when labour saving and time saving, further guarantees the result of use of polisher.

Make 18 sides of mill and be equipped with detachable mill cover 14 and be equipped with mill cover 13 with the top, and mill cover 13 department is equipped with out dirt mouth 21, it is equipped with dust absorption hose 22 to go out dirt mouth 21 department, detachable mill cover 14 further guarantees the result of use of making 18 with setting up of mill cover 13, reduce the probability that 18 of making the mill jumped at the in-process of polishing, it can empty the dust centralized processing that 18 departments of making the mill produced to go out dirt mouth 21 and dust absorption hose 22, further guarantee the cleanliness of 18 service environment of making the mill, strengthen user's use experience.

Be equipped with first shell 11 between roating seat 10 and the above-mentioned mill 18, install gear wheel 12 in the above-mentioned first shell 11, the gear of actuating mechanism's output shaft drives the gear wheel, further number of teeth with actuating mechanism's motor shaft sets up to 3 teeth, compares with traditional gear, the gear ratio grow of gear wheel 12, and transmission efficiency is higher, and the setting of gear wheel 12 further guarantees to polish 18 the stability of rotation in-process, guarantees the result of use of polisher. A large end cover 19 is further arranged between the rotary seat 10 and the polishing disc 18, the large end cover 19 and the head shell 11 form a cavity, and the large gear 12 is installed in the cavity, so that the influence of external substances on the large gear 12 is reduced, the service life of the large gear is ensured, and the use cost of a user is reduced.

The grinding machine is usually provided with a single-phase series motor, which is commonly called a series motor and is named after an excitation winding and an excitation winding are connected in series to work together. The single-phase series motor belongs to AC and DC dual-purpose motor, which can work by AC power supply and DC power supply.

The single-phase series motor has high rotating speed, small volume, light weight and convenient speed regulation, is used as a power source in most electric tools, but the single-phase series motor used by the electric tools is frequently started, has high rotating speed, large vibration, uneven load and easy stalling, so that the temperature rise of an armature is rapidly increased.

The motor mainly comprises a stator, a rotor and a bracket, wherein the stator comprises a salient pole iron core and an excitation winding, the rotor comprises a non-salient pole iron core, an armature winding, a commutator, a rotating shaft, a heat dissipation fan blade and the like, a series circuit is formed between the excitation winding and the armature winding through an electric brush and the commutator, however, the commutator is arranged at one end of the non-salient pole iron core in the existing rotor, and the heat dissipation fan blade is far away from the commutator.

In order to solve the technical problem, the series motor in this embodiment includes a stator 1, a rotor 2, a heat dissipation fan blade 3 and a rotor commutator 6, the rotor commutator 6 is installed near the heat dissipation fan blade 3 and installed on the same side of the series motor as the heat dissipation fan blade 3, the rotor commutator 6 and the heat dissipation fan blade 3 are installed on the same side of the series motor, and the heat dissipation fan blade 3 is installed on the other end of the rotor in speed reduction transmission, so that the operation stability of the series motor can be effectively guaranteed, the service performance and the service life of the series motor are improved, and the use effect of the polishing machine is further guaranteed. The series motor further comprises a machine shell 4, the stator 1, the rotor 2, the heat dissipation fan blades 3 and the rotor commutator 6 are all arranged in the machine shell 4, the arrangement of the machine shell 4 further ensures the service lives of the stator 1, the rotor 2, the heat dissipation fan blades 3 and the rotor commutator 6 which are arranged in the machine shell, and the influence of external substances on the stator 1, the rotor 2, the heat dissipation fan blades 3 and the rotor commutator 6 is reduced.

Keep away from above-mentioned series excited machine dustcoat of above-mentioned polishing dish 18 and be equipped with back shroud 5, above-mentioned series excited machine is installed in above-mentioned back shroud 5, and the effect of protection series excited machine is played in the setting of back shroud 5, further guarantees the life of series excited machine, reduces user's use cost, and simultaneously, the setting up of back shroud 5 makes the whole pleasing to the eye degree of polisher higher, is favorable to the popularization and the application of polisher on market.

Fig. 5 is a schematic view of a usage state of the novel sander for sanding the top of the wall top in this embodiment, and fig. 6 is a schematic view of a usage state of the novel sander for sanding the side surface of the wall surface in this embodiment, and the sanding disc 18 can be freely switched between the side surface of the wall and the top of the wall, so that the operation difficulty of the sander is effectively reduced, and the usage effect of the user is enhanced.

The novel polisher in this embodiment, through putting the series machine in the top of polishing dish 18 immediately, and the position of putting immediately is the focus of series machine in the top of support 15 and is in the side of the upside of polishing dish 18, compare with the horizontal focus motor on the off-centre at the center of polishing dish of tradition, can realize that the polisher can switch in a flexible way between wall and the wall crown of polishing, labour saving and time saving, and exempt from the instrument and switch, the efficiency of polishing has been improved, user's the experience of polishing has been strengthened, be favorable to above-mentioned polisher popularization and application on market.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more here: 1. a stator; 2. a rotor; 3. a heat dissipation fan blade; 4. a housing; 5. a rear cover; 6. a rotor commutator; 7. a movable rod; 8. a locking member; 9. a rotation fulcrum; 10. a rotating base; 11. a head shell; 12. a bull gear; 13. a grinding disc cover; 14. a removable burr cover; 15. a support; 16. a main handle; 17. an auxiliary handle; 18. grinding disc; 19. a large end cap; 20. a drive mechanism; 21. a dust outlet; 22. dust hoses, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. Novel polisher, its characterized in that: the grinding disc type grinding machine comprises a grinding disc (18), a support (15) and a main handle (16), wherein a rotating seat (10) is arranged on the grinding disc (18), the support (15) is movably connected to the rotating seat (10) through a locking piece (8) and forms a rotating fulcrum (9) of the grinding disc (18) and the support (15), and the main handle (16) is movably connected to the other end of the support (15); the device is characterized by further comprising a driving mechanism (20), wherein the driving mechanism (20) is vertically arranged above the rotating fulcrum (9), and the gravity center of the driving mechanism (20) is positioned on the upper side of the rotating fulcrum (9).

2. The new sander of claim 1, wherein: the rotating fulcrum (9) is positioned on the central axis of the polishing disc (18).

3. A new grinding machine according to claim 2, characterized in that: the central axis of the driving mechanism (20) and the central axis of the polishing disc (18) are arranged in parallel, and the distance between the central axis of the driving mechanism (20) and the central axis of the polishing disc (18) is less than 2/3 of the diameter of the polishing disc (18).

4. A novel sander according to claim 1 or 3, characterized in that: the multifunctional electric toothbrush further comprises an auxiliary handle (17), wherein the auxiliary handle (17) is detachably connected to the main handle (16).

5. The novel sander according to claim 4, characterized in that: the central axes of the rotating fulcrum (9), the bracket (15), the main handle (16) and the auxiliary handle (17) are all positioned on the same straight line.

6. The new sander of claim 1, wherein: make mill (18) side be equipped with can dismantle mill cover (14) and be equipped with mill cover (13) with the top, just mill cover (13) department is equipped with out dirt mouth (21), it is equipped with dust absorption hose (22) to go out dirt mouth (21) department.

7. The novel sander according to claim 6, characterized in that: a head shell (11) is arranged between the rotary seat (10) and the polishing disc (18), a large gear (12) is installed in the head shell (11), and the gear of an output shaft of the driving mechanism (20) drives the large gear (12).

8. The novel sander according to claim 7, characterized in that: the number of teeth of the motor shaft of the driving mechanism (20) is 3.

9. The novel sander according to claim 7, characterized in that: a large end cover (19) is further arranged between the rotary seat (10) and the polishing disc (18), the large end cover (19) and the head shell (11) form a cavity, and the large gear (12) is installed in the cavity.

10. The new sander of claim 1, wherein: the driving mechanism (20) comprises a stator (1), a rotor (2) and a heat dissipation fan blade (3), wherein the heat dissipation fan blade (3) is arranged at the other end of the rotor in speed reduction transmission; the driving mechanism (20) further comprises a casing (4), and the stator (1), the rotor (2) and the heat dissipation fan blade (3) are all installed in the casing (4).