CN212287110U - Polishing device - Google Patents

Abstract

The scheme discloses a polishing device in the field of metal surface treatment equipment, which comprises a shell and a grinding wheel, wherein a rotating shaft is rotatably connected in the shell and is connected with a motor for driving the rotating shaft to rotate, and part or all of the grinding wheel is positioned outside the shell; the shell is fixedly connected with an exhaust fan and an air guide box, the rotating shaft penetrates through the air guide box, and the joint of the air guide box and the rotating shaft is closed; a closed cavity is arranged in the rotating shaft, a dust collection wheel for absorbing polishing dust is sleeved on the rotating shaft, a cavity is arranged inside the dust collection wheel, dust collection holes communicated with the cavity are formed in the circumferential surface of the dust collection wheel, and air guide holes communicated with the air guide box and the cavity of the dust collection wheel are formed in the bearing; the exhaust fan is communicated with the air guide box in a sealing way. Grinding device in this scheme has not only realized polishing to the pump body appearance, absorbs the dust that produces at the in-process of polishing moreover, greatly reduced the dust content of polishing among the operational environment, be favorable to ensureing that the staff's is healthy.

Description

Polishing device

Technical Field

The utility model belongs to metal surface treatment equipment field, in particular to grinding device.

Background

Polishing, which is one of surface modification techniques, generally refers to a processing method for changing physical properties of a material surface by friction with the aid of a rough object (sand paper, grinding wheel, etc. containing particles of relatively high hardness) mainly for the purpose of obtaining a specific surface roughness. The metal surface is polished by an electric polisher. The electric grinding machine generally comprises a protective cover, a motor and a grinding wheel, and when the electric grinding machine is used, the grinding wheel is driven by the motor to grind the surface of a product.

In the field of pumps, because the surface of a pump body is irregular in shape, the surface of the pump body is difficult to be completely polished by adopting an automatic polishing machine; therefore, a portable sander is manually used to sand a portion of the area of the pump body. The portable sander generally comprises a housing, a protective cover, a grinding wheel and a motor for driving the grinding wheel to rotate; the dust that produces because polish can spread in the air at the in-process of polishing, and the dust can enter into staff's internal through the respiratory track, and this dust passes through organs such as nasal cavity, upper respiratory track, can destroy human mucous membrane tissue, easily leads to a series of diseases such as staff's headache dizziness, visual deterioration, dyspnea, nerve membrane obstacle, pneumoconiosis to appear. Therefore, when the surface of the metal is polished, the content of polishing dust in the air is reduced, and the polishing dust has an important effect on ensuring the health of workers.

SUMMERY OF THE UTILITY MODEL

The utility model provides a grinding device to solve the problem that portable polisher among the prior art is difficult to absorb the dust dirt of polishing.

The grinding device comprises a shell and a grinding wheel, wherein a rotating shaft is rotatably connected in the shell and is connected with a motor for driving the rotating shaft to rotate, and part or all of the grinding wheel is positioned outside the shell; the shell is fixedly connected with an exhaust fan and an air guide box, the rotating shaft penetrates through the air guide box, and the joint of the air guide box and the rotating shaft is closed; a closed cavity is arranged in the rotating shaft, a dust collection wheel for absorbing polishing dust is sleeved on the rotating shaft, a cavity is arranged inside the dust collection wheel, dust collection holes communicated with the cavity are formed in the circumferential surface of the dust collection wheel, and air guide holes communicated with the air guide box and the cavity of the dust collection wheel are formed in the bearing; the exhaust fan is communicated with the air guide box in a sealing way.

The working principle and the beneficial effects of the scheme are as follows: when using grinding device to polish the pump body, starter motor and suction pump when the motor drives the grinding wheel and polishes the pump body, the pivot can be inhaled to the dust of production, specifically is: the exhaust fan works to enable external air flow to enter the cavity of the dust collection wheel through the dust collection hole and then enter the closed cavity of the rotating shaft from the cavity of the dust collection wheel. Grinding device in this scheme has not only realized polishing the pump body surface, absorbs the dust that produces at the in-process of polishing moreover, greatly reduced the dust content of polishing among the operational environment, be favorable to ensureing that the staff's is healthy.

Furthermore, be equipped with the multilayer in the wind-guiding case and be used for filtering the filter screen of dust, the filter screen is located between pivot and the air exhauster. Through the setting of filter screen, avoid the dust to enter into the fan, be favorable to prolonging the life of fan.

Furthermore, the pores among the filter screens are arranged in a staggered mode. The holes of the multiple layers of filter screens are arranged in a staggered mode, so that the dust interception effect of the filter screens is improved.

Furthermore, the number of the dust collection wheels is two, and the two dust collection wheels are respectively positioned on two sides of the grinding wheel. Dust suction wheels are arranged on two sides of the grinding wheel, so that dust generated by grinding can be more thoroughly sucked.

Furthermore, one end of the rotating shaft, which is far away from the grinding wheel, is provided with a threaded hole communicated with the closed cavity of the rotating shaft, and a plug is connected in the threaded hole in a threaded manner. Through the arrangement of the plug, after a certain amount of dust is generated in the rotating shaft, the plug is rotated and taken down, and the dust in the rotating shaft can be quickly removed.

Furthermore, a protective cover used for covering the plug is arranged on the shell. Because end cap threaded connection can drive the end cap at pivot pivoted in-process and rotate at the screwed hole, through the setting of protective cover, directly expose outside when having avoided the end cap to rotate, be favorable to ensureing staff's safety.

Further, air exhauster and wind-guiding case all are located the casing, are equipped with the ventilation hole rather than inside intercommunication on the casing. With air exhauster and wind-guiding case setting in the casing for grinding device structure is more succinct, and is more convenient during the use.

Furthermore, a protective cover is arranged on the shell and positioned above the grinding wheel and the dust collection wheel. Through the setting of protection casing, can greatly reduced grinding device probably to the injury that the staff caused in the course of the work.

Furthermore, the rotating shaft is in threaded connection with two limiting plates, and the grinding wheel and the dust collection wheel are located between the two limiting plates. Through the setting of limiting plate, can fix emery wheel and dust absorption wheel in the pivot fast, simultaneously, it is also more convenient to dismantle.

Drawings

Fig. 1 is a bottom partial cross-sectional view of a polishing device of the present invention;

FIG. 2 is a left side view of the suction wheel of FIG. 1;

figure 3 is a front view of the wheel of figure 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a cable 1, a handheld rod 2, a conducting wire 3, a shell 4, a motor 5, a protective cover 6, a plug 7, a bearing 8, a rotating shaft 9, a belt 10, a closed cavity 11, an air guide box 12, an air guide hole 13, a protective cover 14, a dust collection wheel 15, a grinding wheel 16, a limiting plate 17, a dust collection hole 18, a filter screen 19, an exhaust fan 20 and a connecting hole 21.

Example 1 is substantially as shown in figure 1: a grinding device comprises a shell 4, a grinding wheel 16 and a rotating shaft 9, the dust collecting device comprises a motor 5, an exhaust fan 20 and two dust collecting wheels 15, wherein the motor 5 and the exhaust fan 20 are installed in a shell 4 through installing seats, a handheld rod 2 is integrally formed on the outer wall of the shell 4, a cable 1 for connecting a power supply is laid in the handheld rod 2, the cable 1 is connected with two electric leads 3, the two electric leads 3 are respectively and electrically connected with the motor 5 and the exhaust fan 20, two bearings 8 are welded in the shell 4, a rotating shaft 9 is rotatably connected in the two bearings 8, one end of the rotating shaft 9 penetrates through the shell 4, the rotating shaft 9 and the motor 5 are in transmission connection through a belt 10, a closed cavity 11 is arranged in the rotating shaft 9, a threaded hole is formed in one end of the rotating shaft 9 in the shell 4, a plug 7 is in threaded connection with the threaded hole, the plug 7 extends out of the shell 4, and a protective;

two limiting plates 17 are connected to the rotating shaft 9 in a threaded manner, the two limiting plates 17 are positioned outside the shell 4, connecting holes 21 are formed in the centers of the grinding wheel 16 and the two dust collection wheels 15, the grinding wheel 16 and the dust collection wheels 15 are sleeved on the rotating shaft 9 through the connecting holes 21, and the grinding wheel 16 is positioned between the two dust collection wheels 15; the grinding wheel 16 and the dust collection wheel 15 are positioned between the two limiting plates 17, a cavity is arranged inside the dust collection wheel 15, and dust collection holes 18 (shown in attached figures 2-3) communicated with the cavity are formed in the circumferential surface of the dust collection wheel 15; a protective cover 14 is fixedly connected to the shell 4 through screws, and the protective cover 14 is positioned above the grinding wheel 16 and the dust collection wheel 15; an air guide box 12 is fixedly connected in the shell 4 through a mounting seat, the rotating shaft 9 penetrates through the air guide box 12, and the joint of the air guide box 12 and the rotating shaft 9 is hermetically connected through a rubber ring; the bearing 8 is provided with an air guide hole 13 communicated with the air guide box 12 and the cavity of the dust collection wheel 15; the exhaust fan 20 is communicated with the air guide box 12 in a sealed mode, multiple layers of filter screens 19 for filtering dust are welded in the air guide box 12, holes among the multiple layers of filter screens 19 are arranged in a staggered mode, and the multiple layers of filter screens 19 are located between the rotating shaft 9 and the exhaust fan 20.

A grinding apparatus of example 2 is different from that of example 1 only in that: mounted within the housing 4 is a battery for providing power to the motor 5 and suction fan 20. Through the setting of battery for grinding device's use no longer relies on external power source, and it is more convenient to use.

Taking example 1 as an example: during the use, through cable conductor 1 intercommunication external power supply, external power supply supplies power for motor 5 and air exhauster 20 simultaneously through cable conductor 1 and conductor wire 3, and motor 5 and air exhauster 20 work simultaneously. The motor 5 drives the rotating shaft 9 and the grinding wheel 16 and the dust collection wheel 15 which are fixed on the rotating shaft 9 to rotate, and the grinding wheel 16 polishes the surface of the pump body. In the process of polishing the pump body by the grinding wheel 16, external air is sucked from the dust suction hole 18 by suction force generated by the exhaust fan 20, so that dust generated around the grinding wheel 16 is sucked into a cavity of the dust suction wheel 15 by the grinding wheel 16, and the dust enters the rotating shaft 9 from the dust suction wheel 15; when the dust in the rotating shaft 9 is accumulated to a certain amount, the plug 7 is removed, and the dust in the rotating shaft 9 is poured out. When the grinding wheel 16 is ground to a smaller diameter, the limit plate 17 can be removed, and the grinding wheel 16 or the dust suction wheel 15 can be replaced quickly.

It should be emphasized that the polishing device in the present application is not only suitable for polishing the surface of the pump body, but also for polishing the surface of other suitable metal products.

Claims (9)

1. A polishing device comprises a shell and a grinding wheel, wherein a rotating shaft is rotatably connected in the shell and is connected with a motor for driving the rotating shaft to rotate, and part or all of the grinding wheel is positioned outside the shell; the method is characterized in that: the shell is fixedly connected with an exhaust fan and an air guide box, the rotating shaft penetrates through the air guide box, and the joint of the air guide box and the rotating shaft is closed; a closed cavity is arranged in the rotating shaft, a dust collection wheel for absorbing polishing dust is sleeved on the rotating shaft, a cavity is arranged inside the dust collection wheel, dust collection holes communicated with the cavity are formed in the circumferential surface of the dust collection wheel, and air guide holes communicated with the air guide box and the cavity of the dust collection wheel are formed in the bearing; the exhaust fan is communicated with the air guide box in a sealing way.

2. An abrading device according to claim 1, characterized in that: the wind-guiding incasement is equipped with the multilayer and is used for filtering the filter screen of dust, and the filter screen is located between pivot and the air exhauster.

3. An abrading device according to claim 2, characterized in that: the pores among the filter screens are arranged in a staggered mode.

4. A polishing device as set forth in any one of claims 1 to 3, characterized in that: the two dust absorption wheels are respectively positioned at two sides of the grinding wheel.

5. An abrading device according to claim 4, wherein: one end of the rotating shaft, which is far away from the grinding wheel, is provided with a threaded hole communicated with the closed cavity of the rotating shaft, and a plug is connected in the threaded hole in a threaded manner.

6. An abrading device according to claim 5, wherein: and the shell is provided with a protective cover for covering the plug.

7. An abrading device according to claim 6, wherein: the exhaust fan and the air guide box are both positioned in the shell, and the shell is provided with a ventilation hole communicated with the interior of the shell.

8. An abrading device according to claim 7, wherein: the shell is provided with a protective cover which is positioned above the grinding wheel and the dust collection wheel.

9. A grinding device as claimed in any one of claims 5 to 8, wherein: the rotating shaft is in threaded connection with two limiting plates, and the grinding wheel and the dust collection wheel are located between the two limiting plates.

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