CN111537292A - Double-channel cutter - Google Patents
Double-channel cutter Download PDFInfo
- Publication number
- CN111537292A CN111537292A CN202010172411.4A CN202010172411A CN111537292A CN 111537292 A CN111537292 A CN 111537292A CN 202010172411 A CN202010172411 A CN 202010172411A CN 111537292 A CN111537292 A CN 111537292A
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- China
- Prior art keywords
- cutter
- eccentric shaft
- sliding block
- dual
- cutter part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 230000009977 dual effect Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000005070 sampling Methods 0.000 abstract description 6
- 239000003570 air Substances 0.000 description 9
- 230000005250 beta ray Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Dispersion Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a double-channel cutter which comprises an upper cutter part and a lower cutter part, wherein the upper cutter part is connected with the hollow structure of the lower cutter part, a sliding block is arranged in the hollow structure inside the upper cutter part, a through hole is formed in the middle of the sliding block, the sliding block is connected with a control assembly in a mode that a rolling bearing is arranged in a groove of the sliding block and drives the sliding block to do linear reciprocating motion through the circumferential rotation of an eccentric shaft, the control assembly comprises a direct current motor, a supporting bearing, an eccentric shaft and the rolling bearing, the direct current motor is connected with the eccentric shaft through a motor shaft and an eccentric shaft hole, the bearing is sleeved at the shaft shoulder of the eccentric shaft, the rolling bearing is fixed at the shaft end of the eccentric shaft, and the rolling bearing. The invention can simultaneously have two sampling modes of PM10 and PM2.5, and realizes the simultaneous monitoring of two parameters of PM10 and PM 2.5.
Description
Technical Field
The invention belongs to the technical field of air particulate matter monitoring, and particularly relates to a double-channel cutter.
Background
In order to monitor real-time data of PM10 and PM2.5 in ambient air, the existing on-line monitoring method approved by national standards is to use a beta-ray monitor to monitor PM10 and PM2.5 in air respectively by equipping different cutters (i.e. a PM10 cutter and a PM2.5 cutter).
According to the traditional monitoring method, only one cutter (PM10 cutter or PM2.5 cutter) can be installed on each beta-ray monitor, and in order to reduce cost and improve monitoring efficiency, the company invented a dual-channel cutter, so that each beta-ray monitor can monitor PM10 and PM2.5 simultaneously only by installing one cutter.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a dual-channel cutter for simultaneously sampling PM10 and PM2.5 particulate matters, and the specific scheme is as follows: a dual-channel cutter comprises an upper cutter part and a lower cutter part, wherein the upper cutter part is arranged at the upper end of the lower cutter part, the middle part of the upper cutter part is of a hollow structure, an air inlet is formed in the upper end of the upper cutter part, the middle part of the lower cutter part is of a hollow structure, an air outlet is formed in the lower end of the lower cutter part, the upper cutter part is connected with the hollow structure of the lower cutter part, a sliding block is arranged in the hollow structure inside the upper cutter part, a through hole is formed in the middle of the sliding block, the sliding block is connected with a control assembly, the control assembly comprises a direct current motor, a supporting bearing, an eccentric shaft and a rolling bearing, the direct current motor is connected with the eccentric shaft through a motor shaft and an eccentric shaft hole, the bearing is sleeved at the shaft shoulder of the eccentric shaft, the rolling bearing is arranged in the groove of the sliding block, and the rolling bearing is arranged in the groove of the sliding block and drives the sliding block to do linear reciprocating motion through the circumferential rotation of the eccentric shaft.
Preferably, a cutter guide pipe is arranged on the side wall of the cutter upper part opposite to the direct current motor, and the end part of the cutter guide pipe is connected with the cutter side cover assembly.
In any of the above schemes, preferably, the shaft sleeve is provided with a photoelectric switch, the dc motor is fixed on the motor bracket, and the eccentric shaft is provided with a baffle.
In any of the above embodiments, preferably, the motor bracket is fixed to a shaft sleeve by a screw, and the shaft sleeve is fixed to a side wall of the upper cutter member by a screw.
In any of the above embodiments, preferably, a pressure plate is disposed between the cutter upper member and the cutter lower member, and the slider is disposed on the pressure plate.
In any of the above embodiments, a tetrafluoro spacer is preferably provided at a connecting portion between the pressure plate and the cutter upper member and the cutter lower member.
In any of the above embodiments, preferably, two opposite end surfaces of the upper side of the cutter upper member are respectively connected to the cutter right-side screw cap and the cutter left-side screw cap.
In any of the above solutions, preferably, the cutter right-handed cap, the cutter left-handed cap and the cutter side cover assembly are connected with the cutter upper component in a threaded manner and sealed by O-rings.
The dual-channel cutter provided by the invention can simultaneously have two sampling modes of PM10 and PM2.5, and realizes the simultaneous monitoring of two parameters of PM10 and PM 2.5.
Drawings
FIG. 1 is a front view of a preferred embodiment of a dual port cutter according to the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a cross-sectional view taken along plane A-A of FIG. 2;
FIG. 4 is a right side view of FIG. 1;
FIG. 5 is a top view of FIG. 1;
FIG. 6 is a bottom view of FIG. 1;
the figures are labeled as follows: 1 cutter upper part; 2. screwing a cover on the right side of the cutter; 3. screwing a cover on the left side of the cutter; 4. a cutter side cover assembly; 5. a tetrafluoro spacer; 6. a photoelectric switch; 7, an O-shaped ring; 8. a support bearing; 9. a slider; 10. a cutter catheter; 11. a cutter lower member; 12. pressing a plate; 13. a direct current motor; 14. an eccentric shaft; 15. a screw; 16. a motor bracket; 17. a shaft sleeve; 18. a baffle plate; 19. an air inlet; 20 air outlets; 21 rolling bearing.
Detailed Description
In order that the invention may be further understood, the invention will now be described in detail with reference to specific examples.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1 to 6, the dual-channel cutter of the present invention comprises a cutter upper part 1 and a cutter lower part 11, two opposite end surfaces of the upper side of the cutter upper part 1 are respectively connected with a cutter right screw cap 2 and a cutter left screw cap 3, the cutter right screw cap 2, the cutter left screw cap 3 and the cutter side cap assembly 4 are connected with the cutter upper part 1 in a threaded manner and sealed by an O-ring 7, the cutter upper part 1 is arranged at the upper end 11 of the cutter lower part, the cutter upper part 1 and the cutter lower part 11 are fixedly connected by screws, the middle of the cutter upper part 1 is a hollow structure, the upper end of the cutter upper part 11 is provided with an air inlet 19, the middle of the cutter lower part 11 is also a hollow structure, the lower end of the cutter lower part 11 is provided with an air outlet 20, the hollow structures of the upper cutter part 1 and the lower cutter part 11 are connected, a pressure plate 12 is arranged between the upper cutter part 1 and the lower cutter part 11, a polytetrafluoroethylene gasket 5 is arranged at the connecting part of the pressure plate 12 and the upper cutter part 1 and the lower cutter part 11, wherein a slide block 9 is arranged in the hollow structure inside the upper cutter part 1, a through hole is arranged in the middle of the slide block 9, the slide block 9 is arranged on the pressure plate 12, the slide block 9 is connected with a control assembly, the control assembly comprises a direct current motor 13, a manufactured bearing 8, a rolling bearing 21 and an eccentric shaft 14, a rotating shaft of the direct current motor 13 is connected with the eccentric shaft 14 and fixed by a jackscrew, the supporting bearing 8 is sleeved at the shaft shoulder of the eccentric shaft 14, the rolling bearing 21 is fixed at the shaft end of the eccentric shaft 14, and the rolling bearing 21 is arranged in a groove of the, the rolling bearing 21 is arranged in a groove of the sliding block 9 and drives the sliding block 9 to do linear reciprocating motion through the circumferential rotation of the eccentric shaft 14, a cutter guide pipe 10 is arranged on the side wall of the cutter upper part 1 opposite to the direct current motor 13, the end part of the cutter guide pipe 10 is connected with the cutter side cover assembly 4, the shaft sleeve 17 is provided with a photoelectric switch 6, the direct current motor 13 is fixed on the motor bracket 16, the eccentric shaft 14 is provided with a baffle plate 18, the motor bracket 16 is fixed on the shaft sleeve 17 through a screw 15, and the shaft sleeve 17 is fixed on the side wall of the cutter upper part 11 through a screw.
On the double channel cutter is arranged a photoelectric switch 6 as a signal for controlling the start and stop of the motor, which is screwed to a bushing 17 on the underside of the eccentric shaft 14 and which ensures that a stop 18 is placed at the intermediate signal of the photoelectric switch.
When the device is used, after a program detects a signal of the photoelectric switch 6, the direct current motor 13 is started, the motor places the sliding block 9 in a PM2.5 channel through the eccentric shaft 14, at the moment, gas enters the cutter upper part 1 through the gas inlet 19 of the double-channel cutter, and then enters the gas outlet 20 through the cutter left spiral cover 3, the cutter side cover assembly 4, the cutter guide pipe 10, the pressure plate 12 and the cutter lower part 11 in sequence; when the slider is placed in the path of PM10, gas enters the cutter upper part 1 through the cutter inlet 19, then enters the cutter lower part 11 through the center hole in the slider 9, and then enters the outlet 19.
The contact surfaces of the sliding block 9 and the cutter upper part 1 are sealed by tetrafluoro gaskets, so that the air passage tightness is ensured, the friction force of the contact surfaces can be reduced, the operation is smooth and reliable, and the stability of the equipment is ensured.
The dual-channel cutter is a component, needs to be connected in series to a sampling pipeline and is connected with the upper pipeline and the lower pipeline in a splicing way, so that the dual-channel cutter is convenient to disassemble; meanwhile, the dual-channel cutter needs to be cleaned regularly, and the cleaning steps are as follows: after disassembly, the cutter lower part 2 is directly screwed off, the pressing plate 11, the sliding block 9 and the like are sequentially taken out, the left and right side screw caps can be screwed off, the side cap assembly can be pulled off, and finally the parts are placed in a container and scrubbed by alcohol.
In summary, the present invention provides a new cutter structure, which can have two sampling modes of PM10 and PM 2.5; the direct current motor is started or stopped by acquiring a signal of the photoelectric switch through a program, so that the switching of two sampling modes is realized; the structure is simple to disassemble, convenient to clean, long in service life and high in reliability.
According to the invention, all required peripheral parts are integrated together through the upper part and the lower part of the cutter, and the materials are high-performance aluminum alloy, so that the cutter has high service performance and completely meets the environmental use requirements.
It will be understood by those skilled in the art that the dual port cutter of the present invention includes any combination of the inventive concepts and the detailed description of the invention set forth above and illustrated in the accompanying drawings, which are not intended to be limited to the space and which, for the sake of brevity of this description, do not describe every aspect which constitutes a combination of these features. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A dual-channel cutter comprises an upper cutter part and a lower cutter part, wherein the upper cutter part is arranged at the upper end of the lower cutter part, the middle part of the upper cutter part is of a hollow structure, an air inlet is formed in the upper end of the upper cutter part, the middle part of the lower cutter part is of a hollow structure, an air outlet is formed in the lower end of the lower cutter part, and the upper cutter part is connected with the hollow structure of the lower cutter part, the rolling bearing is arranged in the groove of the sliding block.
2. The dual channel cutter of claim 1, wherein a cutter tube is disposed on a side wall of the cutter upper member opposite the DC motor, an end of the cutter tube being connected to a cutter side cover assembly.
3. The dual channel cutter as claimed in claim 2, wherein the shaft sleeve is provided with an electro-optical switch, the dc motor is fixed on the motor bracket, and the eccentric shaft is provided with a baffle.
4. The dual port cutter of claim 3, wherein the motor bracket is secured to a bushing by screws, the bushing being secured to a sidewall of the upper cutter member by screws.
5. The dual port cutter of claim 1, wherein a pressure plate is disposed between the cutter upper and lower components, the slide block being disposed on the pressure plate.
6. The dual port cutter of claim 5, wherein the connection of the pressure plate to the upper and lower cutter members is provided by tetrafluoro shims.
7. The dual port cutter of claim 1, wherein the two opposing faces of the upper side of the cutter upper member are connected to the cutter right cap and the cutter left cap, respectively.
8. The dual port cutter of claim 7, wherein the cutter right cap, cutter left cap, cutter side cover assembly are threadably connected to the cutter upper member and are sealed by O-rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172411.4A CN111537292A (en) | 2020-03-12 | 2020-03-12 | Double-channel cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172411.4A CN111537292A (en) | 2020-03-12 | 2020-03-12 | Double-channel cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111537292A true CN111537292A (en) | 2020-08-14 |
Family
ID=71979972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010172411.4A Pending CN111537292A (en) | 2020-03-12 | 2020-03-12 | Double-channel cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111537292A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114158180A (en) * | 2021-10-08 | 2022-03-08 | 中国安全生产科学研究院 | Driver with heat dissipation function and infrared detector applying same |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2507002Y (en) * | 2000-11-03 | 2002-08-21 | 青岛崂山电子仪器总厂 | Vortex cutter |
| CN202522449U (en) * | 2012-04-11 | 2012-11-07 | 铜陵蓝光电子科技有限公司 | Whirlwind PM2.5 atmospheric particulate cutter |
| CN102818905A (en) * | 2012-09-11 | 2012-12-12 | 河北先河环保科技股份有限公司 | Automatic two-channel atmospheric particulate monitoring device |
| CN202793861U (en) * | 2012-09-11 | 2013-03-13 | 河北先河环保科技股份有限公司 | Whirlwind cutting and sampling device for fine particulates |
| CN103196707A (en) * | 2012-01-04 | 2013-07-10 | 武汉宇虹环保产业发展有限公司 | Double-channel bypass-type air particle cutter |
| CN103759988A (en) * | 2014-01-16 | 2014-04-30 | 深圳市华测检测技术股份有限公司 | Atmospheric particulate collection device |
| CN104502147A (en) * | 2014-04-11 | 2015-04-08 | 上海创塔电子科技有限公司 | Automatic switching device for PM2.5, PM10 and SPM cutters |
| CN104502244A (en) * | 2014-12-29 | 2015-04-08 | 上海创塔电子科技有限公司 | Automatic switching device |
| CN205941281U (en) * | 2016-06-22 | 2017-02-08 | 淮南润成科技股份有限公司 | Binary channels raise dust monitor |
| CN106769250A (en) * | 2016-12-28 | 2017-05-31 | 安徽庆宇光电科技有限公司 | A kind of binary channels particle sampling module and the monitoring device containing the sampling module |
| CN206339465U (en) * | 2016-12-28 | 2017-07-18 | 广州铭沁环保科技有限公司 | A kind of binary channels air detection instrument |
| CN107219155A (en) * | 2017-05-31 | 2017-09-29 | 青岛众瑞智能仪器有限公司 | A kind of device for automatically determining binary channels particulate matter quality concentration |
| CN207096021U (en) * | 2017-08-28 | 2018-03-13 | 太原海纳辰科仪器仪表有限公司 | atmospheric dust particle monitoring device |
-
2020
- 2020-03-12 CN CN202010172411.4A patent/CN111537292A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2507002Y (en) * | 2000-11-03 | 2002-08-21 | 青岛崂山电子仪器总厂 | Vortex cutter |
| CN103196707A (en) * | 2012-01-04 | 2013-07-10 | 武汉宇虹环保产业发展有限公司 | Double-channel bypass-type air particle cutter |
| CN202522449U (en) * | 2012-04-11 | 2012-11-07 | 铜陵蓝光电子科技有限公司 | Whirlwind PM2.5 atmospheric particulate cutter |
| CN102818905A (en) * | 2012-09-11 | 2012-12-12 | 河北先河环保科技股份有限公司 | Automatic two-channel atmospheric particulate monitoring device |
| CN202793861U (en) * | 2012-09-11 | 2013-03-13 | 河北先河环保科技股份有限公司 | Whirlwind cutting and sampling device for fine particulates |
| CN103759988A (en) * | 2014-01-16 | 2014-04-30 | 深圳市华测检测技术股份有限公司 | Atmospheric particulate collection device |
| CN104502147A (en) * | 2014-04-11 | 2015-04-08 | 上海创塔电子科技有限公司 | Automatic switching device for PM2.5, PM10 and SPM cutters |
| CN104502244A (en) * | 2014-12-29 | 2015-04-08 | 上海创塔电子科技有限公司 | Automatic switching device |
| CN205941281U (en) * | 2016-06-22 | 2017-02-08 | 淮南润成科技股份有限公司 | Binary channels raise dust monitor |
| CN106769250A (en) * | 2016-12-28 | 2017-05-31 | 安徽庆宇光电科技有限公司 | A kind of binary channels particle sampling module and the monitoring device containing the sampling module |
| CN206339465U (en) * | 2016-12-28 | 2017-07-18 | 广州铭沁环保科技有限公司 | A kind of binary channels air detection instrument |
| CN107219155A (en) * | 2017-05-31 | 2017-09-29 | 青岛众瑞智能仪器有限公司 | A kind of device for automatically determining binary channels particulate matter quality concentration |
| CN207096021U (en) * | 2017-08-28 | 2018-03-13 | 太原海纳辰科仪器仪表有限公司 | atmospheric dust particle monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114158180A (en) * | 2021-10-08 | 2022-03-08 | 中国安全生产科学研究院 | Driver with heat dissipation function and infrared detector applying same |
| CN114158180B (en) * | 2021-10-08 | 2023-09-05 | 中国安全生产科学研究院 | Driver with heat dissipation function and infrared detector applying driver |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20200814 Assignee: Guangdong weiruidi Technology Co.,Ltd. Assignor: BEIJING VIREADY TECHNOLOGY Co.,Ltd. Contract record no.: X2022990001008 Denomination of invention: Dual-channel cutter License type: Common License Record date: 20230103 |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200814 |