CN113842729B - Vacuum pumping mechanism for multi-shaft grinding machine and vacuum grinding method thereof - Google Patents
Vacuum pumping mechanism for multi-shaft grinding machine and vacuum grinding method thereof Download PDFInfo
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- CN113842729B CN113842729B CN202111120980.5A CN202111120980A CN113842729B CN 113842729 B CN113842729 B CN 113842729B CN 202111120980 A CN202111120980 A CN 202111120980A CN 113842729 B CN113842729 B CN 113842729B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- Food Science & Technology (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses a vacuum extraction mechanism for a multi-shaft grinding machine and a vacuum grinding method thereof, which relate to the technical field of multi-shaft grinding machines and aim to solve the problems that grinding materials of the multi-shaft grinding machine cannot be completely ground due to being pushed by foams and the grinding efficiency is reduced. The effects of increasing the processing effect and the processing efficiency, high environmental protection and quick switching function are achieved.
Description
Technical Field
The invention relates to the technical field of multi-shaft grinding machines, in particular to a vacuum pumping mechanism for a multi-shaft grinding machine and a vacuum grinding method thereof.
Background
The grinder is controlled by a stepless speed regulating system, the grinding speed suitable for grinding various parts can be easily regulated, and the pressure device can be independently regulated and controlled by adopting closed-loop feedback pressure control of an electric-gas proportional valve. The hanging wall sets up slowly and falls the function, the effectual breakage that prevents thin and brittle work piece. The grinding time and the number of grinding turns can be accurately set and controlled according to the processing requirement through a time relay and a grinding counter. The pressure mode can be adjusted during working, the automatic shutdown alarm prompt can be realized when the set time or the circle speed of grinding is reached, the semi-automatic operation is realized, the grinding machine control system takes the PLC as a control core, the text display is the control mode of the human-computer conversation interface, the human-computer conversation interface can be in conversation with people about information such as equipment maintenance, operation, faults and the like, the operation interface is visual and convenient, program control and simple operation, all-round safety consideration is realized, the misoperation in an abnormal state is invalid, real-time monitoring is realized, the fault and error alarm is realized, and the maintenance is convenient.
The existing multi-shaft grinding machine comprises a frame, wherein a stirring barrel used for placing steel balls and materials is fixedly connected with the inside of the frame, a stirring cover body used for covering the stirring barrel is detachably connected with the upper end of the stirring barrel, one end of the stirring cover body, away from the stirring barrel, of a fixedly connected driving mechanism, the output end of a stirring motor penetrates through the upper end of the stirring cover body and extends to the inside of the stirring barrel, a stirring shaft is fixedly connected with the output end of the stirring motor and is fixedly connected with a stirring blade, the stirring shaft is integrally and fixedly connected with the stirring blade, the stirring shaft and the stirring blade are inserted into the stirring barrel, then the driving mechanism drives the stirring shaft to rotate with the stirring blade, and therefore the stirring shaft and the stirring blade are guaranteed to fully stir and collide processing materials and the steel balls inside of the stirring barrel, the integral good stirring effect is guaranteed, and the integral collision grinding effect is achieved.
The above prior art solutions have the following drawbacks: multiaxis grinds machine can produce a large amount of foams at the in-process that carries out processing to the material, and the foam can not eliminate at the in-process that grinds, just leads to the foam can lead to the fact the influence to holistic grinding, and the foam can promote less, leads to many abrasive materials to be promoted by the foam and unable complete grinding, has reduced holistic grinding effect, and the in-process that the foam constantly promoted can reduce whole grinding number of times to grinding the abrasive material, has reduced holistic grinding efficiency.
Disclosure of Invention
The invention aims to provide a vacuum pumping mechanism for a multi-shaft grinding machine and a vacuum grinding method thereof, which can reduce foam accumulation in the whole.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a multiaxis is vacuum extraction mechanism for grinder, includes the processing jar body, the processing jar body upper end can be dismantled and be connected with the protection lid, the vacuum pump body that processing jar body one end fixedly connected with is used for extracting the bubble, protection lid upper end fixedly connected with mounting panel, the inside fixedly connected with of mounting panel is used for filtering the filtration box of dust, filter box upper end fixedly connected with outlet duct, the exhaust hole that supplies gas outgoing is seted up in the outlet duct outside, the outlet duct outside can be dismantled and be connected with the connecting pipe, the outlet duct communicates through the connecting pipe with the vacuum pump body end of breathing in each other, filter box diapire fixedly connected with bottom plate, the inside fixedly connected with transfer line of bottom plate, filter box inboard from interior to exterior fixedly connected with reference column and fixed inner tube in proper order, the reference column is located the transfer line outside, fixed inner tube communicates with the exhaust hole each other, filter box lateral wall sets up the dust absorption hole that is used for the dust to pass through, the lower terminal surface in dust absorption hole is higher than the upper end face, the inside swing joint of reference column has the piston rod that is used for adjusting transfer line department atmospheric pressure, the piston rod upper end of reference column passes through the inside and extends to filter box upper end, the inner tube, the piston rod, the inner tube is equipped with the annular hole at least two sets up at the fixed connection between fixed inner tube.
Through adopting above-mentioned technical scheme, use the vacuum pump body to absorb the bubble that produces in whole inside course of working to discharge the gas inside the bubble, make things convenient for wholly carry out abundant grinding to the processing material, increased holistic grinding effect.
Furthermore, the dust absorption holes are distributed on the outer side of the filtering box body at equal intervals in a ring shape.
Through adopting above-mentioned technical scheme, use the convenient whole in-process dust that feeds in raw material in exhaust hole to convenient whole internal portion carries out the dust fall and handles, has reduced the inside dust that contains when whole opening, has reduced the influence of dust to the environment.
Further, one end of the processing tank body close to the vacuum pump body is fixedly connected with a protection shell used for protecting the vacuum pump body, and the protection shell is located on the outer side of the vacuum pump body.
Through adopting above-mentioned technical scheme, use the protection casing to carry out abundant protection to the vacuum pump body, reduced the external injury to the vacuum pump body, increased holistic life to whole practicality has been increased.
Furthermore, the upper end of the piston rod is fixedly connected with a lifting block, and the lifting block is of a structure with anti-skid grains on the outer side.
Through adopting above-mentioned technical scheme, use the piston rod to remove inside the reference column to the liquid level of conveniently filtering box and transfer line is adjusted, and wholly conveniently adjusts, has increased holistic flexibility.
Furthermore, the piston rod is matched with the positioning column in shape and size, a sealing shaft sleeve used for sealing the joint of the piston rod and the positioning column is fixedly connected to the outer side of the piston rod, and the sealing shaft sleeve is matched with the piston rod in shape and size.
Through adopting above-mentioned technical scheme, sealed axle sleeve guarantees that the piston rod can keep good sealed effect in the whole inside of the inside in-process that removes of reference column to conveniently wholly carry out the atmospheric pressure and adjust, increased holistic practicality.
Furthermore, at least two groups of filtering components are distributed in the fixed inner cylinder, and the annular holes are annularly distributed at equal intervals at the lower end of the fixed inner cylinder.
Through adopting above-mentioned technical scheme, can stab the bubble at the annular hole of fixed inner tube lower extreme annular equidistant distribution to the bubble that produces in the whole course of working is eliminated to the convenience, has reduced the influence that the bubble produced to whole processing.
Further, the inside annular fixed plate that is included of filtering component, annular fixed plate is inside hollow structure, annular fixed plate upper end fixedly connected with filter core, the filter core laminates with fixed inner tube inside wall and reference column lateral wall respectively.
Through adopting above-mentioned technical scheme, filtering component can carry out abundant filtration to whole inside dust and the inside gas of bubble, prevents that the dust that produces from causing the influence to the environment in the course of working, has increased holistic environmental protection effect.
Further, the using method comprises the following steps:
a1: assembling and fixing, namely fixing the mounting plate and the filter box body in the protective cover body through fixing screws distributed at equal intervals in an annular mode, connecting the air suction end and the air outlet pipe of the vacuum pump body through a connecting pipe, and sealing the joint of the air suction end and the air outlet pipe of the vacuum pump body, so that the integral assembly is completed;
a2: the suction of bubbles, through filling the processing material in the processing tank body, the liquid level of the processing material in the whole body is ensured to be higher than the lower end surface of the filtering tank body, and the liquid level is ensured to be lower than the lower end surface of the dust suction hole, because the liquid level of the processing material in the whole body is higher than the lower end surface of the filtering tank body, the filtering tank body takes a liquid conveying pipe as a communicating pipe, the liquid in the tank body is ensured to be sucked by the filtering tank body, but the air pressure is not enough to integrally generate siphon reaction, a vacuum pump body can be opened to quickly reduce the air pressure in the filtering tank body, the liquid level in the filtering tank body is convenient to be consistent with the liquid level of the processing tank body, and simultaneously, the bubbles generated in the whole body enter the filtering tank body through the liquid conveying pipe and are filtered by the components of the filtering component and then discharged;
a3: the absorption of dust, move inside the reference column through control piston rod, thereby highly adjust the liquid of fixed inner tube inside, because the space between transfer line and the reference column is in liquid seal state, when the piston rod rises, space atmospheric pressure between transfer line and the reference column reduces, filter the inside water of box and move toward the space between transfer line and the reference column, thereby guarantee that the liquid level is less than the lower terminal surface of fixed inner tube, the vacuum pump body is to filtering the box inside suction of applying simultaneously, and with the dust that produces in the whole reinforced in-process through the dust absorption hole inside the suction filtration box, the dust falls inside filtering the box through filtering component's filtration whereabouts, thereby reduce the dust that produces in the whole course of working.
Through adopting above-mentioned technical scheme, conveniently absorb bubble and dust that produce in the whole course of working, carry out abundant filtration to the dust simultaneously, when guaranteeing the whole processing effect, reduced the harm of dust to the air.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the vacuum pump body and the filtering box body are adopted, so that bubbles generated in the grinding process inside the grinding machine can be conveniently and fully absorbed integrally, and meanwhile, dust is filtered, so that the integral good processing effect is ensured, and the effect of increasing the processing effect and the processing efficiency is generated;
2. the dust collection hole and the filter element are adopted, so that the whole body can fully absorb dust generated in the feeding process of the processing tank body, and meanwhile, the whole body can fully filter the dust, the influence of the dust on the environment is reduced, and the effect of high environmental protection is generated;
3. the piston rod and the sealing shaft sleeve are adopted, the position of the piston rod is conveniently and integrally adjusted, so that the liquid level inside the filtering box body is conveniently and integrally adjusted, the function conversion is conveniently and integrally carried out, and the effect of the quick conversion function is generated.
Drawings
FIG. 1 is a schematic perspective view of a multi-spindle grinder according to the present invention;
FIG. 2 is a schematic view showing the internal structure of the multi-shaft grinder of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic cross-sectional view of the filter housing of the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention.
In the figure, 1, processing a tank body; 2. a protective cover body; 3. a vacuum pump body; 4. mounting a plate; 5. a filter box body; 6. a dust collection hole; 7. a piston rod; 8. a filter assembly; 31. a protective housing; 51. an air outlet pipe; 52. an exhaust hole; 53. a connecting pipe; 54. a base plate; 55. a transfusion tube; 56. a positioning column; 57. fixing the inner cylinder; 58. an annular aperture; 71. lifting the block; 72. sealing the shaft sleeve; 81. an annular fixing plate; 82. and (3) a filter element.
Detailed Description
The present invention will be described in further detail below.
Referring to fig. 1 and 2, a vacuum pumping mechanism for a multi-axis grinder comprises a processing tank body 1, wherein the upper end of the processing tank body 1 is detachably connected with a protective cover body 2, one end of the processing tank body 1 is fixedly connected with a vacuum pump body 3 for pumping bubbles, the upper end of the protective cover body 2 is fixedly connected with a mounting plate 4, the interior of the mounting plate 4 is fixedly connected with a filtering tank body 5 for filtering dust, the upper end of the filtering tank body 5 is fixedly connected with an air outlet pipe 51, the outer side of the air outlet pipe 51 is provided with an exhaust hole 52 for exhausting gas, the outer side of the air outlet pipe 51 is detachably connected with a connecting pipe 53, the air outlet pipe 51 is communicated with the air suction end of the vacuum pump body 3 through the connecting pipe 53, the bottom wall of the filtering tank body 5 is fixedly connected with a bottom plate 54, the interior of the bottom plate 54 is fixedly connected with a transfusion pipe 55, the interior of the filtering tank body 5 is fixedly connected with a positioning column 56 and a fixed inner cylinder 57 in turn from inside to outside, the transfusion pipe 55, the fixed inner cylinder 57 is communicated with the exhaust hole 52, the exhaust holes 52 are distributed in the exhaust pipe 51 at equal intervals in an annular shape, the joint of the exhaust pipe 51 and the vacuum pump body 3 is sealed, so that the overall good vacuum pumping effect is ensured, meanwhile, in the process of integrally performing pipeline connection, the piston rod 7 needs to be leaked, namely, the outer side of the exhaust pipe 51 is covered by the cover body, so that the cover body is sealed with the outer side of the exhaust pipe 51, then the cover body is connected with the air outlet end of the vacuum pump body 3, the side wall of the filtering box body 5 is provided with dust suction holes 6 for dust to pass through, the lower end face of the dust suction holes 6 is higher than the upper end face of the infusion tube 55, the dust suction holes 6 are distributed at equal intervals in an annular shape outside the filtering box body 5, so that the dust generated in the feeding process of the processing tank body 1 can be conveniently and integrally discharged, one end of the processing tank body 1 close to the vacuum pump body 3 is fixedly connected with the protective shell 31 for protecting the vacuum pump body 3, the protection casing 31 is located the outside of the vacuum pump body 3, the protection casing 31 is matched with the shape and size of the vacuum pump body 3, and the protection casing 31 is of an upper end and lower end communicating structure, so that the whole pipeline connection is facilitated.
Referring to fig. 3 and 4, the inside swing joint of reference column 56 has a piston rod 7 that is used for adjusting the atmospheric pressure of transfer line 55 department, piston rod 7 upper end passes the inside extension of reference column 56 to filter the upper end of box 5, piston rod 7 upper end fixedly connected with is carried and is drawn piece 71, it takes anti-skidding line structure for the outside to carry and draw piece 71, the outside takes anti-skidding line structure to carry and draws piece 71 makes things convenient for wholly snatch, thereby conveniently adjust the inside liquid level of filtering box 5, piston rod 7 and reference column 56's shape size looks adaptation, piston rod 7 outside fixedly connected with is used for the sealed axle sleeve 72 of sealed piston rod 7 and reference column 56 junction, the shape size looks adaptation of sealed axle sleeve 72 and piston rod 7, the one end that piston rod 7 is close to transfer line 55 is the great cylinder structure of diameter, the main part of piston rod 7 is the cylinder of thinner cylinder, thereby make things convenient for wholly to remove, guarantee that whole conveniently adjusts.
Referring to fig. 5, fixedly connected with is used for filtering assembly 8 of bubble and dust between fixed inner tube 57 inside wall and the reference column 56 lateral wall, filtering assembly 8 distributes at least two sets ofly in fixed inner tube 57 inside, annular hole 58 has been seted up to fixed inner tube 57 lower extreme, annular hole 58 is at fixed inner tube 57 lower extreme annular equidistant distribution, annular hole 58 at fixed inner tube 57 lower extreme annular equidistant distribution can stab the bubble, thereby make things convenient for whole gas that produces to discharge in the course of working, guarantee whole good exhaust effect, filtering assembly 8 is inside including annular fixed plate 81, annular fixed plate 81 is inside hollow structure, annular fixed plate 81 upper end fixedly connected with filter core 82, filter core 82 laminates with fixed inner tube 57 inside wall and reference column 56 lateral wall respectively, annular fixed plate 81 can fix filtering assembly 8, the inside hollow part of annular fixed plate 81 can guarantee wholly to carry out abundant discharge to gas.
The working principle is as follows: firstly, fixing the mounting plate 4 and the filtering box body 5 in the protective cover body 2 through fixing screws distributed at equal intervals in an annular shape, connecting the air suction end of the vacuum pump body 3 with the air outlet pipe 51 through a connecting pipe 53, and sealing the joint of the air suction end of the vacuum pump body 3 and the air outlet pipe 51, thereby completing the integral assembly and the absorption of air bubbles, ensuring that the liquid level of the processing material in the integral body is higher than the lower end surface of the filtering box body 5 and the liquid level is lower than the lower end surface of the dust suction hole 6 by filling the processing material in the processing tank body 1, ensuring that the liquid level of the processing material in the integral body is higher than the lower end surface of the filtering box body 5, ensuring that the filtering box body 5 absorbs the liquid in the integral body, but the air pressure is not enough to integrally generate siphon reaction, opening the vacuum pump body 3 to quickly reduce the air pressure in the filtering box body 5, the liquid level in the filtering box body 5 is convenient to be consistent with the liquid level in the processing tank body 1, meanwhile, bubbles generated in the whole body enter the filtering box body 5 through the liquid conveying pipe 55, are filtered by the components of the filtering component 8 and then are discharged, the liquid level in the fixed inner cylinder 57 is adjusted by controlling the piston rod 7 to move in the positioning column 56, because the space between the liquid conveying pipe 55 and the positioning column 56 is in a liquid sealing state, when the piston rod 7 rises, the air pressure in the space between the liquid conveying pipe 55 and the positioning column 56 is reduced, water in the filtering box body 5 moves towards the space between the liquid conveying pipe 55 and the positioning column 56, so that the liquid level is lower than the lower end face of the fixed inner cylinder 57, meanwhile, the vacuum pump body 3 applies suction to the inside of the filtering box body 5, and sucks dust generated in the whole feeding process into the filtering box body 5 through the dust suction hole 6, the dust falls inside the filter box 5 through the filtration of filter assembly 8 to reduce the dust that produces in the whole course of working.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a vacuum pumping mechanism for multi-axis grinder, includes the processing jar body (1), its characterized in that: the processing tank is characterized in that a protective cover body (2) is detachably connected to the upper end of the processing tank body (1), one end of the processing tank body (1) is fixedly connected with a vacuum pump body (3) used for pumping bubbles, a mounting plate (4) is fixedly connected to the upper end of the protective cover body (2), a filtering box body (5) used for filtering dust is fixedly connected to the inside of the mounting plate (4), an air outlet pipe (51) is fixedly connected to the upper end of the filtering box body (5), an exhaust hole (52) for exhausting air is formed in the outer side of the air outlet pipe (51), a connecting pipe (53) is detachably connected to the outer side of the air outlet pipe (51), the air inlet end of the air outlet pipe (51) and the air suction end of the vacuum pump body (3) are communicated with each other through the connecting pipe (53), a bottom plate (54) is fixedly connected to the bottom wall of the filtering box body (5), a positioning column (56) and a fixed inner cylinder (57) are fixedly connected to the inner side of the filtering box body (5) from inside to outside, the positioning column (56) is located outside the infusion pipe (55), and the fixed inner cylinder (57) and the exhaust hole (52) are communicated with each other;
the side wall of the filtering box body (5) is provided with a dust suction hole (6) for dust to pass through, and the lower end surface of the dust suction hole (6) is higher than the upper end surface of the infusion tube (55);
the interior of the positioning column (56) is movably connected with a piston rod (7) used for adjusting air pressure at the position of the infusion tube (55), and the upper end of the piston rod (7) penetrates through the interior of the positioning column (56) and extends to the upper end of the filtering box body (5);
and a filtering component (8) for filtering bubbles and dust is fixedly connected between the inner side wall of the fixed inner cylinder (57) and the outer side wall of the positioning column (56), and an annular hole (58) is formed in the lower end of the fixed inner cylinder (57).
2. The vacuum pumping mechanism for a multi-axis grinder as set forth in claim 1, wherein: the dust absorption holes (6) are distributed at equal intervals in a ring shape on the outer side of the filtering box body (5).
3. The vacuum pumping mechanism for a multi-axis grinder as set forth in claim 1, wherein: one end of the processing tank body (1) close to the vacuum pump body (3) is fixedly connected with a protective shell (31) used for protecting the vacuum pump body (3), and the protective shell (31) is located on the outer side of the vacuum pump body (3).
4. The vacuum pumping mechanism for a multi-axis grinder as set forth in claim 1, wherein: the upper end of the piston rod (7) is fixedly connected with a lifting block (71), and the lifting block (71) is of a structure with anti-skid grains on the outer side.
5. The vacuum pumping mechanism for a multi-axis grinder as set forth in claim 4, wherein: the piston rod (7) is matched with the positioning column (56) in shape and size, a sealing shaft sleeve (72) used for sealing the joint of the piston rod (7) and the positioning column (56) is fixedly connected to the outer side of the piston rod (7), and the sealing shaft sleeve (72) is matched with the piston rod (7) in shape and size.
6. The vacuum pumping mechanism for a multi-axis grinder as set forth in claim 1, wherein: at least two groups of filtering components (8) are distributed in the fixed inner cylinder (57), and the annular holes (58) are distributed at equal intervals in an annular mode at the lower end of the fixed inner cylinder (57).
7. The vacuum pumping mechanism for a multi-axis grinder as set forth in claim 6, wherein: the filter assembly (8) is inside including annular fixed plate (81), annular fixed plate (81) are inside hollow structure, annular fixed plate (81) upper end fixedly connected with filter core (82), filter core (82) laminate with fixed inner tube (57) inside wall and reference column (56) lateral wall respectively.
8. A vacuum grinding method of a vacuum pumping mechanism for a multi-axis grinder as set forth in any one of claims 1 to 7, characterized in that: the method comprises the following steps:
a1: assembling and fixing, namely fixing the mounting plate (4) and the filter box body (5) in the protective cover body (2) through fixing screws distributed at equal intervals in an annular mode, connecting the air suction end of the vacuum pump body (3) with the air outlet pipe (51) through a connecting pipe (53), and sealing the connection position of the air suction end of the vacuum pump body (3) and the air outlet pipe (51), so that integral assembling is completed;
a2: the suction of air bubbles, through filling the processing material in the processing tank body (1), the liquid level of the processing material in the whole body is ensured to be higher than the lower end surface of the filtering tank body (5), and the liquid level is ensured to be lower than the lower end surface of the dust suction hole (6), because the liquid level of the processing material in the whole body is higher than the lower end surface of the filtering tank body (5), the filtering tank body (5) takes an infusion tube (55) as a communicating tube, the liquid in the tank body is ensured to be sucked by the filtering tank body (5), but the air pressure is not enough to integrally generate siphon reaction, the vacuum pump body (3) can be opened to quickly reduce the air pressure in the filtering tank body (5), the liquid level in the filtering tank body (5) is convenient to be consistent with the liquid level of the processing tank body (1), meanwhile, the air bubbles generated in the whole body enter the filtering tank body (5) through the infusion tube (55), and are filtered by components of the filtering component (8) and then discharged;
a3: the absorption of dust, move in reference column (56) inside through control piston rod (7), thereby highly adjust the liquid of fixed inner tube (57) inside, because the space between transfer line (55) and reference column (56) is in liquid seal state, when piston rod (7) rose, space atmospheric pressure between transfer line (55) and reference column (56) reduces, filter the inside water of box (5) and move toward the space between transfer line (55) and reference column (56), thereby guarantee that the liquid level is less than the lower terminal surface of fixed inner tube (57), vacuum pump body (3) exert suction to filtering box (5) inside simultaneously, and pass through dust absorption hole (6) with the dust that whole reinforced in-process produced and inhale inside filtering box (5), the dust falls inside filtering box (5) through the filtration of filter assembly (8), thereby reduce the dust that produces in the whole course of working.
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| CN202111120980.5A CN113842729B (en) | 2021-09-24 | 2021-09-24 | Vacuum pumping mechanism for multi-shaft grinding machine and vacuum grinding method thereof |
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| CN202111120980.5A CN113842729B (en) | 2021-09-24 | 2021-09-24 | Vacuum pumping mechanism for multi-shaft grinding machine and vacuum grinding method thereof |
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| CN113842729B true CN113842729B (en) | 2022-11-25 |
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