CN2604275Y

CN2604275Y - Dust extraction hood no polishing machine

Info

Publication number: CN2604275Y
Application number: CN 03228696
Authority: CN
Inventors: 陈美青
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-30
Filing date: 2003-01-30
Publication date: 2004-02-25
Anticipated expiration: 2013-01-30

Abstract

The utility model provides a polisher dust hood, belonging to mechanical technique fields, which solves the problems of present polisher dust hood of low working efficiency and others caused by no considering about the flow direction of air within the hood. The polisher dust hood includes a hood body, the driving wheel of polisher is disposed in the hood body, an upper windshield is arranged above the driving wheel and on the anterior hood body, the upper windshield is connected with the hood body, an adjusting mechanism for upper and lower movement of the upper windshield is arranged between the upper windshield and the hood body. The adjusting mechanism is two grooves arranged on the joint of the upper windshield and the hood body, the upper windshield is inserted into two grooves, can move up and down in the grooves, and is located by a location device. The utility model has the advantages that the polisher dust hood can prevent the excretion of air in hook from the driving wheel, and can maximally realize the function of the dust hood; meanwhile, the utility model also play the functions of reduction of the power of dust absorption fan and power savings.

Description

The dust shield of polishing machine

Technical field

The utility model belongs to field of mechanical technique, the dust shield that uses on particularly a kind of polishing machine.

Background technology

Polishing machine is a kind of plant equipment that is in daily use, and is used widely in industries such as five metals, hot-water heatings.Polishing machine in use can produce a lot of dust, not only environment is polluted, and directly influences the healthy of workman.Particularly some throw copper spare product, in the copper that is produced ash as the long-term suction body, will cause multiple diseases such as pulmonary tuberculosis.

In existing polishing machine, some does not install dust cover, and only ventilating fan is loaded onto in the position near polishing machine.In the polishing machine use, ventilating fan can only be with seldom a part of dust sucking-off, and most of dust will influence environment and workers'health.The other polishing machine is equipped with dust shield, and at air outlet dust absorption fan is installed, thereby has obtained certain dustproof effect.

But existing polishing machine dust shield is only considered the active wheel of polishing machine is covered, and does not consider the flow direction of the interior air-flow of dust shield when the polishing machine active wheel turns round, so that the dust in the cover is discharged by the air outlet of dust shield.Therefore, the efficient of existing dust shield is not high, needs powerful dust absorption fan, and exists the phenomenon that the air-flow that is partly with dust is discharged by the active wheel place.

Summary of the invention

The purpose of this utility model is in order to address the above problem, a kind of dust shield of novel polishing machine is provided, makes it be designed to rational structure according to the characteristics of air-flow in the dust shield, obtaining the highest operating efficiency, and prevent that air-flow from being discharged by the active wheel place.

The purpose of this utility model realizes by following technical proposal: the dust shield of this polishing machine comprises a cover body, the driving wheel of polishing machine is positioned at cover body, the front portion of the top cover body of driving wheel is provided with one and goes up deep bead, last deep bead and cover body link, and are being provided with a governor motion that deep bead is moved up and down between last deep bead and the cover body.

Driving wheel and driven pulley are arranged on the polishing machine.When polishing machine is worked, the air in the dust cover will flow along with the rotation of driving wheel and driven pulley.

In the dust shield of above-mentioned polishing machine, described governor motion is that cover body is provided with two grooves in the connection place with last deep bead, last deep bead is stuck in these two grooves, and can be up and down in groove, and makes the deep bead location by a positioner.

In the dust shield of above-mentioned polishing machine, described positioner is a spring catch that is arranged on the cover body, this spring catch can roof pressure on last deep bead.Suppress deep bead by spring catch, deep bead can not moved.

For the wind in the dust cover is put together, preferably at the width of driving wheel place cover body width less than other position of cover body.Like this, air-flow in the cover can be concentrated on the both sides of driving wheel effectively,, and discharge from the exhaust outlet of dust cover along with the rotation of driving wheel flows to the bottom of driving wheel.

In the dust shield of above-mentioned polishing machine, in the middle of the bottom of described upward deep bead a breach is arranged.In use, according to the position of deep bead on the big or small up-down adjustment of driving wheel, the edge of polishing machine driving wheel is passed through by the indentation, there of last deep bead.Like this, can be reduced to bottom line to the space at driving wheel place, change the flow direction of air-flow in the dust shield, the air-flow of the overwhelming majority is discharged by the exhaust outlet of dust shield.

Compare with common dust shield, advantage of the present utility model is:

1,,, brings into play the effect of dust shield to greatest extent so prevented that air-flow is discharged by the driving wheel place in the cover owing to the space with the driving wheel place is reduced to minimum degree.

2, because the width of driving wheel place cover body is less, be convenient to make the air-flow in the cover to concentrate the exhaust outlet place that flows to dust shield, can play the effect that reduces dust absorption fan power, energy savings.

Description of drawings

Fig. 1 is the structural representation of the dust shield of the polishing machine that provides of the utility model.

Fig. 2 is the partial top view of the dust shield of the polishing machine that provides of the utility model at the driving wheel place.

Fig. 3 is the profile of Fig. 1 along A-A.

Fig. 4 is the outline drawing that deep bead is provided in the dust shield of the polishing machine that provides of the utility model.

Among the figure, 1, cover body; 11, groove; 2, go up deep bead; 21, breach; 3, driving wheel; 4, exhaust outlet; 5, drawer; 6, driven pulley; 7, regulating wheel; 8, abrasive band; 9, spring catch.

The specific embodiment

As shown in Figure 1, in the present embodiment, the dust shield of polishing machine comprises cover body 1, goes up deep bead 2 and exhaust outlet 4.Except driving wheel 3, also have driven pulley 6 and regulating wheel 7 in the polishing machine.Cover body 1 all covers in these three wheels wherein.

In the present embodiment, polishing machine is a belt sander, is with an abrasive band 8 on driving wheel 3, driven pulley 6 and the regulating wheel 7.The driving wheel 3 of polishing machine directly connects with the rotating shaft of motor.Regulating wheel 7 is used to regulate the rate of tension in abrasive band 8.

As shown in Figure 2, at the width of driving wheel 3 place's cover bodies 1 width less than cover body 1 other position.Usually, the abrasive band 8 of polishing machine is to rotate counterclockwise by direction shown in Figure 1.Therefore, the air-flow in the cover body 1 also flows by this direction.When air-flow flows to driving wheel 3 by regulating wheel 7, by dwindling of cover body 1 width, air-flow is stopped in the concentrated area more by last deep bead 2, flow to driven pulley 6 places, below, and flow out exhaust outlet 4 at last.

Last deep bead 2 wheel 3 the top that has the initiative, and be positioned at the forward position of cover body 1.As shown in Figure 3, last deep bead 2 is stuck in two grooves 11 of cover body 1, and can move up and down in groove 11, in order to regulate the position of deep bead 2.

As shown in Figure 4, a breach 21 is arranged in the middle of the bottom of last deep bead 2.Preferably regulate and go up deep bead 2, the edge of driving wheel 3 is embedded in this breach 21.Like this, last deep bead 2 can also reduce the space of driving wheel 3 both sides, makes the more concentrated outflow of air-flow.

As shown in Figure 2, a spring catch 9 is arranged on the cover body 1 at last deep bead 2 places.After last deep bead 2 upper-lower positions mix up, pass cover body 1 and roof pressure on last deep bead 2 by spring catch 9, deep bead 2 is fixed.

The exhaust outlet 4 of this polishing machine dust shield is positioned at the rear of cover body 1 bottom.Usually at exhaust outlet 4 places a dust absorption fan is set, the air-flow that will have dust is extracted cover body 1 out.

In the present embodiment, in the bottom of cover body 1 drawer 5 is set also.This drawer 5 can collect particle heavier in the dust, so that recycle.Simultaneously, in process, there is product to drop because of carelessness, can in drawer 5, gets back.But the more important thing is the power that reduced dust absorption fan, play a part energy-conservationly, and make the air-flow of sucking-off cover body 1 contain less dust, help saving the expense that is used for these air-flows of environmental protection treatment.

Claims

1, a kind of dust shield of polishing machine, it comprises a cover body (1), the driving wheel of polishing machine (3) is positioned at cover body (1), the front portion that it is characterized in that the top cover body (1) of described driving wheel (3) is provided with a upward deep bead (2), last deep bead (2) links with cover body (1), and is provided with a governor motion that deep bead (2) is moved up and down between last deep bead (2) and cover body (1).

2, the dust shield of polishing machine according to claim 1, it is characterized in that described governor motion is that cover body (1) is provided with two grooves (11) in the connection place with last deep bead (2), last deep bead (2) is stuck in these two grooves (11), and can be up and down in groove (11), and make deep bead (2) location by a positioner.

3, the dust shield of polishing machine according to claim 2 is characterized in that described positioner is a spring catch (9) that is arranged on the cover body (1), this spring catch (9) can roof pressure on last deep bead (2).

4,, it is characterized in that locating the width of the width of cover body (1) less than other position of cover body (1) at driving wheel (3) according to the dust shield of claim 1,2 or 3 described polishing machines.

5,, it is characterized in that there is a breach (21) centre, bottom of described last deep bead (2) according to the dust shield of claim 1,2 or 3 described polishing machines.

6,, it is characterized in that a drawer (5) being set in the bottom of cover body (1) according to the dust shield of claim 1,2 or 3 described polishing machines.