CN105382704B - Valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device and method - Google Patents
Valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device and method Download PDFInfo
- Publication number
- CN105382704B CN105382704B CN201510717269.6A CN201510717269A CN105382704B CN 105382704 B CN105382704 B CN 105382704B CN 201510717269 A CN201510717269 A CN 201510717269A CN 105382704 B CN105382704 B CN 105382704B
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- cavity volume
- grinding
- valve pocket
- volume
- gas
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- 238000000227 grinding Methods 0.000 title claims abstract description 77
- 238000002156 mixing Methods 0.000 title claims abstract description 51
- 239000012530 fluid Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005498 polishing Methods 0.000 title claims abstract description 21
- 239000007787 solid Substances 0.000 title claims abstract description 16
- 239000006061 abrasive grain Substances 0.000 claims abstract description 39
- 239000002245 particle Substances 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 230000010349 pulsation Effects 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 7
- 230000030279 gene silencing Effects 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000032258 transport Effects 0.000 abstract description 5
- 238000005520 cutting process Methods 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005111 flow chemistry technique Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention discloses valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device and method.Conventional valve pocket burr removing method actual effect is undesirable.The air compressor output high pressure air of apparatus of the present invention leads to variable volume cavity, mixing cavity volume, grinding cavity volume and filtering cavity volume successively；It is arranged on eccentric wheel apparatus in variable volume cavity and drives piston；Micro-nano abrasive grains and stirring wheel are arranged in mixing cavity volume；Filter is arranged in the middle part of grinding cavity volume.The abrasive polishing method of the present invention：Air compressor is opened, high pressure air transports to mixing cavity volume after variable volume cavity；Stirring wheel makes micro-nano abrasive grains be suspended in mixing cavity volume and high pressure air to be uniformly mixed to form gas-particle two-phase abrasive fluid, and exports to grinding cavity volume high-speed impact valve pocket to be ground；After gas-particle two-phase abrasive fluid outflow grinding cavity volume, the separation of micro-nano abrasive grains and high pressure air is realized through filtering cavity volume filtering.The present invention is applied to the various complicated micro- burr removings of contact surface.
Description
Technical field
The invention belongs to finishing technology field, and in particular to a kind of valve pocket contact surface gas-solid mixing formula fluid grinding and polishing
Device and method.
Background technology
Sealing part abrasion speed is to influence the biggest factor of pneumatic operated valve life and reliability, if valve sleeving inner wall has burr and incited somebody to action
The abrasion of seal can be aggravated.However, the valve pocket with through hole is in process, it is inevasible that tiny hair occurs
Thorn, thus deburring just becomes a procedure essential in valve pocket process.Conventional traditional burr removing method has
Scraper deburring and brush finishing method etc., but to be only applicable to Workpiece structure relatively simple for such method, and position to be processed compared with
Few occasion, when workpiece draw ratio is larger, or position to be processed it is more when do not apply to then.
Abrasive Flow deburring is the most commonly used method of current removal complex-shaped workpieces inwall burr.Such as application publication number
Just include the device that a kind of utilization high-pressure fluid removes complex parts inwall burr, the device for CN103097082A patent
By the way that the nozzle insert of spray gun is extended to inside workpiece to be processed to realize the removal of high-pressure fluid burr.Such as Granted publication
Number CN102166735B patent also includes the device that a kind of utilization soft abrasive fluid constraint runner removes flash removed, and the device leads to
Crossing structure constraint runner makes soft abrasive fluid reach turbulent condition, so as to realize the removal of Work-piece burr to be added.Such as Shen Qing Publication
Number include the device that a kind of use abrasive Flow removes burr at deep hole annular groove for CN103659619A patent, the device leads to
Cross and constraint runner is formed between upper material hole, work piece and lower material hole, guiding abrasive material is flowed through with certain speed to be added
At the sharp side of workpiece and burr, so as to realize the processing of part.As application publication number also includes for CN104325411A patent
A kind of device by spirally constraining abrasive Flow deburring, the device, which passes through, to be built spiral constraint processing unit (plant) and realizes mill
Grain stream makes abrasive Flow as close to wall with turbulent condition by workpiece to be processed, and using the centrifugal force of high speed rotation, from
And realize the cleaning of workpiece to be processed inwall burr.Patent if application publication number is CN103612211A includes a kind of abrasive particle
Turbulent flow processing unit (plant) is flowed, the device sets multigroup abrasive Flow gateway by the controlled profiling runner of abrasive Flow in structure, realized
Uniform processing at curved surface flex point and singular point.
But, above patent all has the disadvantage that：Need to design relatively reasonable stream according to the characteristics of workpiece to be processed
Road and fixture realize the processing of workpiece surface；Due to using the liquid such as the higher hydraulic oil of viscosity to be carried as the transport of abrasive particle
Body so that abrasive grains are difficult to reach turbulent condition in process of lapping, cause that the speed of near wall particle is small, cutting power compared with
Difference, burr cleaning is not thorough；Because near wall particle cutting speed in process and cutting power difference are larger, work to be processed
Substantially, actual processing effect is unsatisfactory for the cutting output difference of part everywhere.
The content of the invention
There is poor universality, burr with valve element contact surface microtriche thorn clearance technique for existing all kinds valve pocket in the present invention
Remove not thoroughly, surface roughness difference is larger etc. not enough is thrown there is provided a kind of grinding of valve pocket contact surface gas-solid mixing formula fluid
Electro-optical device and method.Apparatus of the present invention are a kind of using micro-nano abrasive grains as milling cutter, using compressed gas as transport agent
Fluid grinding and polishing device；It is a kind of device that can be achieved to be distributed in micro-nano abrasive grains in air-flow body；It is a kind of variable
Pressure and changeable flow air-flow body lapping device；It is that a kind of grinding and polishing suitable for the various complicated micro- burr removings of contact surface is filled
Put.
The technical proposal for solving the technical problem of the invention is：
Apparatus of the present invention include air compressor, gas pressure Flow-rate adjustment component, mixing cavity volume, micro-nano abrasive grains,
Covered on stirring wheel, grinding cavity volume, filtering cavity volume, filter and grinding cavity volume；Described gas pressure Flow-rate adjustment component by
Variable volume cavity, eccentric wheel apparatus and piston composition；The air outlet of the air compressor is connected with the air intake vent of variable volume cavity；Institute
The eccentric wheel apparatus and piston stated are arranged in variable volume cavity；The eccentric wheel of eccentric wheel apparatus is driven by motor；Described work
Plug constitutes cam pair with eccentric wheel end face, and constitutes sliding pair with variable volume cavity；The air outlet of the variable volume cavity is with mixing appearance
The air intake vent connection of chamber；Described micro-nano abrasive grains and stirring wheel are arranged in mixing cavity volume；Described stirring wheel is by electricity
Machine drives.The air outlet of the mixing cavity volume is connected with grinding the air intake vent of cavity volume；Provided with to be ground in described grinding cavity volume
Valve pocket axial securing means for impeller；Lid is sealed at the top of grinding cavity volume on described grinding cavity volume；The air outlet and mistake of the grinding cavity volume
The air intake vent connection of cavity volume is filtered, described filter is arranged in the middle part of grinding cavity volume.
Provided with circumferential position limiting structure in described grinding cavity volume.
Described valve pocket axial securing means for impeller to be ground includes pressing plate and spring, and described pressing plate leads to grinding cavity volume bottom
Cross spring connection.
Lid is bolted with end face at the top of grinding cavity volume on described grinding cavity volume.
The air outlet of the filtering cavity volume is provided with silencing apparatus.
The top of the filtering cavity volume sets gas receiver.
The valve pocket contact surface gas-solid mixing formula fluid abrasive polishing method of the present invention, is comprised the following steps that：
Step 1: valve pocket to be ground is fixed in grinding cavity volume；It is thick according to the position and surface of valve pocket burr to be ground
The rotating speed of eccentric wheel in rough degree, adjustment variable volume cavity, eccentric wheel drive piston changes position to set pressure, the stream of air inlet
Measure the pulsation period；The rotating speed of stirring wheel in mixing cavity volume is set and held so as to set micro-nano abrasive grains in mixing cavity volume into grinding
The speed of chamber.
Step 2: opening air compressor, high pressure air realizes the periodicity of pressure and flow by variable volume cavity
After pulsation, output to mixing cavity volume；Motor drives stirring wheel high speed elevator, disperses micro-nano abrasive grains, is suspended in mixing appearance
In chamber, and uniformly mixed with the high pressure air of periodically pulsing, form gas-particle two-phase abrasive fluid, and export to grinding appearance
Chamber.The inner surface of gas-particle two-phase abrasive fluid high-speed impact valve pocket to be ground from different perspectives, realizes valve pocket inner surface to be ground
Attrition process.
Step 3: after gas-particle two-phase abrasive fluid outflow grinding cavity volume, through filtering the filtration of filter in cavity volume,
Realize the separation of micro-nano abrasive grains and high pressure air；Micro-nano abrasive grains are recycled, and high pressure compressed gas is then flowed through
Discharged after silencing apparatus.Filter the gas receiver at the top of cavity volume and absorb unnecessary pulsation energy.
Beneficial effects of the present invention：
1. the present invention is using the less micro-nano abrasive grains of size as milling cutter, it is possible to achieve micro cutting, both can be effective
The microtriche thorn at valve pocket cross bore is removed, abrasive particle scratch valve sleeving inner wall is avoided again.The present invention is with viscosity is low, the small characteristic of resistance
Compressed gas as transport agent, can be achieved abrasive grains valve pocket to be processed is flowed through with turbulent condition, so as to ensure near wall
Abrasive particle keep higher cutting speed and stronger cutting power, realize effective processing of inner surface.
2. the present invention can realize micro-nano particle being uniformly distributed in high speed and high pressure air-flow by injection apparatus, so as to ensure
Valve pocket inner surface cuts the uniformity of removal amount everywhere, improves the finish of work piece inner surface, reduces its roughness.
3. the present invention can be by adjusting the size of charge flow rate and pressure and the quantity of micro-nano abrasive grains, so that real
The adjustment of existing micro-cutting power and micro-cutting amount.
4. the high-voltage high-speed airflow of low viscosity can realize that micro-nano particle passes through variously-shaped section and micro- with turbulent condition
Hole, it is adaptable to micro- burr removing of various complicated contact surfaces.
Brief description of the drawings
Fig. 1 is the structure principle chart of apparatus of the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device, including air compressor 1, gas
Pressure flow adjusting part, mixing cavity volume 5, micro-nano abrasive grains 6, stirring wheel 7, grinding cavity volume 9, pressing plate 10, spring 11, filtering
Lid 18 on cavity volume 13, filter 14, silencing apparatus 15, gas receiver 16 and grinding cavity volume；Gas pressure Flow-rate adjustment component by
Variable volume cavity 2, eccentric wheel apparatus 3 and piston 4 are constituted；The air outlet of air compressor 1 is connected with the air intake vent of variable volume cavity 2；
Eccentric wheel apparatus 3 and piston 4 are arranged in variable volume cavity 2；The eccentric wheel of eccentric wheel apparatus 3 is driven by motor；Piston 4 with partially
Heart wheel end face constitutes cam pair, and constitutes sliding pair with variable volume cavity 2；Eccentric wheel band piston 4 moves up and down, and its effect is to change
Become the volume size of variable volume cavity 2, to change the pressure and flow of air inlet, and then realize the micro-cutting of gas-particle two-phase fluid-mixing 8
The adjustment of power and micro-cutting amount.The air outlet of variable volume cavity 2 is connected with mixing the air intake vent of cavity volume 5；Micro-nano abrasive grains 6 and stir
Wheel 7 is mixed to be arranged in mixing cavity volume 5；Stirring wheel 7 is driven by motor, makes that micro-nano abrasive grains 6 are fully dispersed, be suspended in air
In；After high pressure air flows into mixing cavity volume 5, micro-nano abrasive grains 6 are involved in swiftly flowing high pressure air
In be uniformly distributed, form gas-particle two-phase fluid-mixing 8.
It using compressed gas as transport agent, with micro-nano abrasive grains 6 is the mixed of milling cutter that gas-particle two-phase fluid-mixing 8, which is,
Polishing fluid is closed, its effect is the reduction for the removal and roughness for realizing the inner surface microtriche of valve pocket 12 thorn to be ground.With easily appearance
The liquid transporting carrier of laminar flow phenomenon is compared, and air has the characteristics of viscosity is low, resistance is small, can be remained in flow process
Turbulent condition, be distributed in micro-nano abrasive grains 6 therein close to the inner surface of valve pocket 12 to be ground place can still keep compared with
High flowing velocity, i.e., in the wall close to valve pocket 12 to be ground, micro-nano abrasive grains 6 still have very strong machining energy
Power.Because the diversity of gas-particle two-phase fluid-mixing 8 is stronger, without setting specific runner to realize in valve pocket to be ground
The attrition process of surface different parts, drastically increases the scope of application of the device.
The air outlet for mixing cavity volume 5 is connected with grinding the air intake vent of cavity volume 9；Grind provided with circumferential position limiting structure in cavity volume 9,
Realize the circumferentially fixed of valve pocket 12 to be ground；Pressing plate 10 is arranged in grinding cavity volume 9, and passes through spring with grinding cavity volume 9 bottom
11 connections；Lid 18 is connected with the grinding top end face of cavity volume 9 by bolt 17 on grinding cavity volume, seals grinding cavity volume 9；Grind cavity volume
Upper lid 18, pressing plate 10 and spring 11 realize the axial restraint of valve pocket 12 to be ground, to avoid because of the stream of gas-particle two-phase fluid-mixing
It is dynamic to cause the collision of valve pocket 12 grinding cavity volume 9 to be ground；Lid 18 on grinding cavity volume need to only be fixed or removed, you can correspondence is laid or taken
Go out valve pocket 12 to be ground.The effect for grinding cavity volume 9 is fixation and the attrition process for realizing valve pocket 12 to be ground.
The air outlet for grinding cavity volume 9 is connected with filtering the air intake vent of cavity volume 13, and the air outlet of filtering cavity volume 13 is provided with noise elimination
Device 15；Gas receiver 16 is arranged on the top of filtering cavity volume 13, can sponge unnecessary pulsation energy, reduce pulsation to external world
Impact noise；Filter 14 is arranged on the middle part of grinding cavity volume 9.
The course of work of the valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device is as follows：
1. process of lapping
During early-stage preparations, according to the position of the burr of valve pocket 12 to be ground and surface roughness, adjustment eccentric wheel and stirring
The rotating speed of wheel 7, so as to set the pressure of air inlet and the speed of flow pulsation cycle and the entrance grinding cavity volume 9 of micro-nano abrasive grains 6
Rate.During grinding, air compressor 1 is opened, high pressure air realizes the periodically pulsing of pressure and flow by variable volume cavity 2
Afterwards, output extremely mixing cavity volume 5.In the case where motor drives the high speed elevator effect of stirring wheel 7, micro-nano abrasive grains 6 are made to disperse, suspend
In mixing cavity volume 5, and uniformly mixed with the compressed air of periodically pulsing, form gas-particle two-phase abrasive fluid 8, and export extremely
Grind cavity volume 9.Because the viscosity of air is low, resistance is small, the gas-particle two-phase abrasive fluid 8 of near wall is in turbulent condition, will be with
Higher speed hits the inner surface of valve pocket 12 to be ground from different perspectives, realizes that the grinding of the inner surface of valve pocket 12 to be ground adds
Work；And the single cutting output of abrasive grains 6 of microsize is smaller, scratch will not be caused for the inner surface of valve pocket 12 to be ground, together
When due to its continual impact, it is possible to achieve the thorough removal of the inner surface microtriche of valve pocket 12 to be ground thorn and roughness compared with
The skin processing of large surface.After the outflow grinding cavity volume 9 of gas-particle two-phase abrasive fluid 8, through filtering filter 14 in cavity volume 13
Filtration, realizes the separation of micro-nano abrasive grains 6 and high pressure air, to realize the recovery of micro-nano abrasive grains 6, high
Pressure compressed gas is then flowed through and discharged after silencing apparatus 15.Gas receiver 16 can then sponge unnecessary pulsation energy, reduce device
Pulsatile impact noise to external world.
2. cleaning process
After surface grinding completion, it might have a small amount of micro-nano abrasive grains 6 and stay in inside valve pocket 12 to be ground,
It is unfavorable for the normal of workpiece to use.Therefore, after surface grinding completion, the rotating speed for adjusting stirring wheel 7 (now, mixes cavity volume
Micro-nano abrasive grains 6 are not placed in 5), while the rotating speed by adjusting eccentric wheel, improves the pressure and stream velocity fluctuation frequency of gas
Rate, removes the micro-nano abrasive grains 6 residued in inside valve pocket 12 to be ground, realizes the cleaning of valve pocket 12 to be ground.
The method that the valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device realizes grinding and polishing, specific steps are such as
Under：
Step 1: valve pocket 12 to be ground is fixed in grinding cavity volume 9；According to the position of the burr of valve pocket 12 to be ground and table
The rotating speed of eccentric wheel in face degree of roughness, adjustment variable volume cavity 2, eccentric wheel drive piston 4 changes position to set air inlet
Pressure, flow pulsation cycle；The rotating speed of stirring wheel 7 in mixing cavity volume 5 is set to set micro-nano grinding in mixing cavity volume 5
Grain 6 enters the speed of grinding cavity volume 9.
Step 2: opening air compressor 1, high pressure air realizes the cycle of pressure and flow by variable volume cavity 2
Property pulsation after, output to mixing cavity volume 5；Motor drive the high speed elevator of stirring wheel 7, disperse micro-nano abrasive grains 6, be suspended in it is mixed
Close in cavity volume 5, and uniformly mixed with the high pressure air of periodically pulsing, form gas-particle two-phase abrasive fluid 8, and export extremely
Grind cavity volume 9.The inner surface of the high-speed impact valve pocket 12 to be ground from different perspectives of gas-particle two-phase abrasive fluid 8, is realized to be ground
The attrition process of the inner surface of valve pocket 12.
Step 3: after the outflow grinding cavity volume 9 of gas-particle two-phase abrasive fluid 8, through the mistake for filtering filter 14 in cavity volume 13
Filter is acted on, and realizes the separation of micro-nano abrasive grains 6 and high pressure air；Micro-nano abrasive grains 6 are recycled, high pressure compressed gas
Body is then flowed through and discharged after silencing apparatus 15.The gas receiver 16 at the top of filtering cavity volume 13 absorbs unnecessary pulsation energy.
Claims (7)
1. valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device, including air compressor, gas pressure Flow-rate adjustment group
Covered on part, mixing cavity volume, micro-nano abrasive grains, stirring wheel, grinding cavity volume, filtering cavity volume, filter and grinding cavity volume, it is special
Levy and be：Described gas pressure Flow-rate adjustment component is made up of variable volume cavity, eccentric wheel apparatus and piston；The air compression
The air outlet of machine is connected with the air intake vent of variable volume cavity；Described eccentric wheel apparatus and piston is arranged in variable volume cavity；Partially
The eccentric wheel of heart wheel apparatus is driven by motor；Described piston constitutes cam pair with eccentric wheel end face, and is constituted with variable volume cavity
Sliding pair；The air outlet of the variable volume cavity is connected with mixing the air intake vent of cavity volume；Described micro-nano abrasive grains and stirring wheel
It is arranged in mixing cavity volume；Described stirring wheel is driven by motor；The air outlet of the mixing cavity volume enters with grinding cavity volume
Air port is connected；Valve pocket axial securing means for impeller to be ground is provided with described grinding cavity volume；Lid, which is sealed, on described grinding cavity volume grinds
Grind at the top of cavity volume；The air outlet of the grinding cavity volume is connected with filtering the air intake vent of cavity volume, and described filter, which is arranged on, to be ground
Grind in the middle part of cavity volume.
2. valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device according to claim 1, it is characterised in that：It is described
Grinding cavity volume in provided with circumferential position limiting structure.
3. valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device according to claim 1, it is characterised in that：It is described
Valve pocket axial securing means for impeller to be ground include pressing plate and spring, described pressing plate is connected with grinding cavity volume bottom by spring.
4. valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device according to claim 1, it is characterised in that：It is described
Grinding cavity volume on lid with grinding cavity volume top end face be bolted.
5. valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device according to claim 1, it is characterised in that：It is described
The air outlet for filtering cavity volume is provided with silencing apparatus.
6. valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device according to claim 1, it is characterised in that：It is described
The top for filtering cavity volume sets gas receiver.
7. the valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device according to any of claim 1 to 6 is realized
The method of grinding and polishing, is comprised the following steps that：
Step 1: valve pocket to be ground is fixed in grinding cavity volume；According to the position of valve pocket burr to be ground and rough surface journey
The rotating speed of eccentric wheel in degree, adjustment variable volume cavity, eccentric wheel drive piston changes position to set pressure, the flow arteries and veins of air inlet
The dynamic cycle；The rotating speed of stirring wheel in mixing cavity volume is set and enters grinding cavity volume so as to set micro-nano abrasive grains in mixing cavity volume
Speed；
Step 2: opening air compressor, high pressure air realizes the periodically pulsing of pressure and flow by variable volume cavity
Afterwards, output extremely mixing cavity volume；Motor drives stirring wheel high speed elevator, disperses micro-nano abrasive grains, is suspended in mixing cavity volume,
And uniformly mixed with the high pressure air of periodically pulsing, gas-particle two-phase abrasive fluid is formed, and export to grinding cavity volume；Gas
Gu the inner surface of two-phase abrasive fluid high-speed impact valve pocket to be ground from different perspectives, realizes the grinding of valve pocket inner surface to be ground
Processing；
Step 3: after gas-particle two-phase abrasive fluid outflow grinding cavity volume, through filtering the filtration of filter in cavity volume, realizing
The separation of micro-nano abrasive grains and high pressure air；Micro-nano abrasive grains are recycled, and high pressure compressed gas then flows through noise elimination
Discharged after device；Filter the gas receiver at the top of cavity volume and absorb unnecessary pulsation energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717269.6A CN105382704B (en) | 2015-10-29 | 2015-10-29 | Valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717269.6A CN105382704B (en) | 2015-10-29 | 2015-10-29 | Valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105382704A CN105382704A (en) | 2016-03-09 |
| CN105382704B true CN105382704B (en) | 2017-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510717269.6A Active CN105382704B (en) | 2015-10-29 | 2015-10-29 | Valve pocket contact surface gas-solid mixing formula fluid grinding and polishing device and method |
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| CN (1) | CN105382704B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109129192B (en) * | 2018-09-13 | 2021-02-02 | 山东理工大学 | Polishing processing device and method for pneumatic suspension grinding material pool |
| CN110605655B (en) * | 2019-10-16 | 2024-04-30 | 浙江工业大学 | Pumping air polishing device and method for blind hole polishing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SE9201117D0 (en) * | 1992-04-08 | 1992-04-08 | Svemo Mekaniska Ab | DEVICE FOR DISHWASHERS |
| CN201979404U (en) * | 2010-11-30 | 2011-09-21 | 金川集团有限公司 | Device for removing oxidizing layer on surface of copper ingot with high-pressure water |
| CN103447971A (en) * | 2013-09-12 | 2013-12-18 | 厦门四缘环保技术有限公司 | Sand sprayer |
| CN203726349U (en) * | 2014-03-20 | 2014-07-23 | 北京中联信达金属结构有限公司 | Sand-blasting machine for metal pieces |
| CN204135901U (en) * | 2014-10-11 | 2015-02-04 | 江西高安超鹰齿轮制造有限公司 | A kind of gear shot-blast equipment |
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| Publication number | Publication date |
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| CN105382704A (en) | 2016-03-09 |
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