CN113334261B - Sand blowing device and method for large-length-diameter-ratio gas cylinder - Google Patents
Sand blowing device and method for large-length-diameter-ratio gas cylinder Download PDFInfo
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- CN113334261B CN113334261B CN202110588438.6A CN202110588438A CN113334261B CN 113334261 B CN113334261 B CN 113334261B CN 202110588438 A CN202110588438 A CN 202110588438A CN 113334261 B CN113334261 B CN 113334261B
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- sand
- gas cylinder
- blowing
- sand blowing
- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to the technical field of aviation flight gas cylinder processing, in particular to a sand blowing device and method for a large-length-diameter ratio gas cylinder. The two sand blowing guns are matched with each other to carry out sand blasting on the inner wall of the bottle body, after the first sand blasting, the positions of the gas cylinders are exchanged, sand blasting is carried out again, and dead angles generated in the previous step of processing are clear. The invention can improve the sand blowing efficiency of the gas cylinders, can process two gas cylinders simultaneously, avoids the processing blind angle of the inner wall of the cylinder body, seals gravel and dust in the case, and improves the workshop operation environment.
Description
Technical Field
The invention relates to a gas cylinder processing device for an aviation aircraft.
Background
At present, the shape of a gas cylinder for an aviation aircraft is a long body with a thin mouth, the shape of the gas cylinder is generally formed by welding two sections or three sections of cylinders, the inner wall of the gas cylinder needs to be processed after welding is finished, certain smoothness is maintained, the most effective mode is sand blowing, the inner wall of the gas cylinder is polished by utilizing high-pressure gas to drive gravel, and the bottle mouth of the gas cylinder is very thin, so that two problems are caused, firstly, the sand blowing angle is not easy to adjust, a processing dead angle is easy to leave, secondly, the bottle mouth is too thin, and the sand flows out of the bottle mouth after falling down and is easy to be blocked. The existing mode is to manually hold the sand blowing gun, rotate and pull the sand blowing pipe, keep no processing dead angle as much as possible, pause sand blowing when more sand grains are accumulated in the bottle, and enable the sand grains to flow out of the bottle body and then continue sand blowing. Moreover, the sand blowing work site has a severe environment and more sand and dust, and operators need to wear protective articles for intermittent operation. The processing efficiency, the processing precision and the working environment are all in need of improvement.
Disclosure of Invention
The invention solves the technical problem of providing the sand blowing device for the aviation aircraft gas cylinder, which has high processing efficiency and safe processing site environment.
The technical scheme adopted by the invention is that the sand blowing device for the large-length-diameter-ratio gas cylinder comprises a case, wherein a gas cylinder support is arranged on the case, two sand blowing guns are further arranged on the case, two gas cylinders are clamped on the gas cylinder support, each gas cylinder corresponds to one sand blowing gun, and each sand blowing gun is independently connected with a lifting driving device.
The two sand blowing guns are respectively provided with a main spray head and a corner spray head, the main spray head is in a cylinder shape, the top end of the cylinder shape is cut into an inclined plane, an inclined sand outlet nozzle is formed, the inclined plane and the horizontal plane are 30-60 degrees, the corner spray head is in a cylinder shape with a closed top end, a large sand outlet nozzle and a small sand outlet nozzle are arranged on the side wall of the corner spray head, the large sand outlet nozzle is close to the top end, and the lower edges of the small sand outlet nozzle and the large sand outlet nozzle are flush.
The ratio of the diameters of the sand blowing pipes connected with the main nozzle and the corner nozzle is 12:10.
The case comprises a closed shell, and the two sand blowing pipes are driven by the same sand blowing machine.
The gas cylinder support is still including being located the sealing disk of gas cylinder oral area, and the sealing disk is the ascending tube-shape of opening, has offered the installation opening on the section of thick bamboo wall, and the sealing disk middle part is equipped with the trompil, and the blowing sand pipe passes from the sealing disk.
The sealing disk is made of ceramic material.
The gas cylinder support is provided with a gas cylinder pressure head for applying downward pressure to the gas cylinder.
The bottom of the case is in an inverted cone shape, and a gravel recovery port is arranged at the top end of the cone.
The method for blowing sand for the large-length-diameter-ratio gas cylinder comprises the following steps: installing gas cylinders, namely installing the two gas cylinders on a gas cylinder bracket respectively, and pressing the gas cylinders downwards by using a gas cylinder pressure head;
and a second step of: starting a sand blasting gun and moving two sand blasting pipes up and down;
and a third step of: after sand blasting is completed, exchanging the mounting positions of the two gas cylinders;
fourth step: starting the sand blasting gun, and moving the two sand blasting pipes up and down until sand blasting is completed.
The gas cylinder support is connected with a driving device, and the gas cylinder is driven to rotate along the axis of the gas cylinder support.
The invention has the advantages that the sand blowing efficiency of the gas cylinders is improved, two gas cylinders can be processed simultaneously, the processing blind angle of the inner wall of the gas cylinder body is avoided, gravel dust is sealed in the case, and the workshop operation environment is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a block diagram of a main spray head;
FIG. 3 is a block diagram of a corner sprayer;
FIG. 4 is a schematic diagram of the mating of a cylinder and a lance;
FIG. 5 is a schematic illustration of the mating of a cylinder with another blowpipe;
fig. 6 is a schematic view of a sealing disk mechanism.
Marked in the figure as: 1-gas cylinder, 211-corner nozzle, 2111-big sand outlet nozzle, 2112-small sand outlet nozzle, 212-main nozzle, 2121-inclined sand outlet nozzle, 22-sand blowing pipe, 3-case, 4-gas cylinder bracket, 41-sealing disk, 411-installation opening, 42-gas cylinder pressure head, 5-gas source and sand blasting device.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the sand blowing device for the large-length-diameter-ratio gas cylinder comprises a case, wherein a gas cylinder support is arranged on the case, two gas cylinders are clamped on the gas cylinder support, two sand blowing guns are also arranged on the case, each gas cylinder corresponds to one sand blowing gun, and each sand blowing gun is independently connected with a lifting driving device.
The inner wall of the gas cylinder is divided into three sections, and the circular arc section part of the bottom of the inner wall of the cylinder body is hereinafter referred to as the bottom of the cylinder body, and the bottom of the cylinder is positioned above during processing; the middle part of the inner wall of the bottle body is a cylindrical part, and is simply called the middle part of the bottle body; the arc part of the inner wall of the gas cylinder close to the bottle mouth is called the bottle mouth.
Embodiment one: the two sand blowing guns are connected with the same general sand blowing pipe, the general sand blowing pipe is divided into two sand blowing pipes 22 after entering the machine box, one coarse sand blowing pipe and one fine sand blowing pipe, and the diameter ratio of the coarse sand blowing pipe to the fine sand blowing pipe is 12:10. Wherein the main nozzle 212 is installed at the end of the coarse sand-blast pipe, and the corner nozzle 211 is installed at the end of the fine sand-blast pipe. The main nozzle 212 is cylindrical with a beveled top end to form an inclined sand outlet 2121, the beveled top end forms an included angle of 30-60 degrees with the horizontal surface, sand is sprayed out from the main nozzle 212 and flies obliquely upwards, the sand blasting pipe moves up and down to cover the middle part and the bottom of the bottle body, but the mouth part of the bottle body is a blind spot of the sand outlet and cannot be related to the sand outlet. The corner nozzle 211 is a cylinder with a closed top end, a large sand outlet nozzle 2111 and a small sand outlet nozzle 2112 are arranged on the side wall of the corner nozzle 211, the large sand outlet nozzle 2111 is close to the top end, the small sand outlet nozzle 2112 is flush with the lower edge of the large sand outlet nozzle 2111, sand is sprayed out from the large sand outlet nozzle and then is sprayed out towards the direction slightly upwards of the horizontal, and the sand blasting range covers the middle part of the bottle body and the mouth part of the bottle body. The two spray heads are matched, so that the inner wall of the bottle body can be covered on the whole surface. The main sand blowing pipe is made of flexible materials, the front ends of the thick sand blowing pipe and the thin sand blowing pipe are also made of flexible materials, the sand blowing pipe clamped by the driving mechanism and the rear end of the thick sand blowing pipe and the thin sand blowing pipe are made of hard materials, and the flexible sand blowing pipe can move along with the movement of the driving mechanism.
The gas cylinder support is arranged on the case and comprises a sealing disc positioned at the mouth of the gas cylinder and a gas cylinder pressure head positioned at the bottom of the gas cylinder. The sealing disk is in an upward opening cylindrical shape, the cylinder wall is provided with a mounting notch, during mounting, the bottle opening passes through the mounting notch, the middle of the sealing disk is provided with a hole, the sand blowing pipe 22 passes through the sealing disk, and falling gravel falls from a gap between the sealing disk and the sand blowing pipe 22, so that the sealing disk is made of a material with good wear resistance, such as ceramic material. The pressure head of the gas cylinder applies downward pressure to the gas cylinder, and the gas cylinder is pressed towards the sealing disc.
The case comprises a closed shell, a sand blowing pipe 22 and a driving mechanism of the sand blowing pipe are arranged in the shell, the bottom of the shell is in a funnel shape, dropping grits are collected at the funnel, and when the stored grits are large in quantity, a valve at the bottom of the funnel can be opened to recover the grits. The recovered gravel can enter a gas source and a sand blasting device, and the gas source and the sand blasting device provide high-pressure gas source and gravel for sand blasting, including but not limited to high-pressure gas pumps, sand boxes, sand guiding pipes and other common sand blasting components.
The sand blowing device can process two gas cylinders simultaneously.
The first step: installing gas cylinders, namely installing the two gas cylinders on a gas cylinder bracket respectively, and pressing the gas cylinders downwards by using a gas cylinder pressure head;
and a second step of: starting a sand blasting gun and moving two sand blasting pipes up and down; the air cylinders corresponding to the main spray heads 212 can finish sand blasting at the middle part and the top of the bottle, and the air cylinders corresponding to the corner spray heads 211 can finish sand blasting at the middle part and the mouth of the bottle.
And a third step of: after the sand blasting of the last step is completed, the bottoms of the two air cylinders and the mouth part of the air cylinder are not processed, the mounting positions of the two air cylinders are exchanged, and the rest positions are subjected to complementary processing.
Fourth step: after the installation in place, the sand blasting gun is started, the two sand blasting pipes are moved up and down, and the main spray head 212 and the corner spray head 211 respectively perform sand blasting on the bottom of the remaining bottle body and the mouth of the bottle body until the sand blasting is completed.
During the blasting process, the gun is rotated along its own axis while moving up and down, as shown in fig. 4. The sand nozzle cannot cover the whole circle of circumference. After the sand particles hit the inner wall, the sand blowing pipe 22 can be rotated continuously to enable the sand particles to uniformly fall on the whole bottle body, because the inner diameter of the mouth of the gas bottle is smaller, the sand blowing pipe 22 cannot be too thin in order to protect the sand blowing effect and impact force, the gap between the sand blowing pipe 22 and the inner wall of the bottle mouth is smaller, the space is very limited, and the sand particles uniformly fall to keep the gap is very important. The sand blowing pipe and the bottle mouth rotate continuously, so that the dropping of gravel can be quickened, and the sand blowing pipe is not easy to accumulate. Otherwise, the sand accumulation of the bottle mouth is excessive, shutdown and sand removal are needed, and the processing progress is delayed.
The two sand blowing pipes 22 are respectively connected with respective driving devices, the driving devices realize up-and-down movement and autorotation of the sand blowing pipes 22, and because the environment in a machine case is bad, the environment is bad in the sand blowing process, more sand and dust exist, and the screw is easy to stagnate, the driving devices of the sand blowing pipes need to keep additionally arranging dustproof rubber, and the ball screw is adopted for up-and-down movement, so that the dustproof rubber needs to be additionally arranged around the screw. The rotation of the sand blowing pipe 22 is realized by adopting a bearing, and then the transmission mechanism and the bearing are also sleeved with dustproof rubber.
Embodiment two: the first difference from the embodiment is that the sand-blowing pipe driving device only realizes the up-and-down movement of the sand-blowing pipe 22, the sand-blowing pipe 22 and the spray head do not rotate, and the air bottle rotates. At this time, the gas cylinder pressure head and the sealing disc both rotate with the gas cylinder, the driving device adopts a stepping motor, and is connected to the gas cylinder pressure head part by a transmission mechanism to drive the gas cylinder pressure head to rotate and drive the gas cylinder and the sealing disc to rotate. A dustproof bearing is arranged between the sealing disc and the case. The structure has the advantages that the complexity of the sand blowing pipe driving device is simplified, the device for driving the rotation is placed outside the machine case, the environment outside the machine case is relatively good, the dust-proof requirement is not as high as that in the machine case, the equipment requirement is reduced, and the fault occurrence rate and the overhaul difficulty are reduced.
Claims (9)
1. The utility model provides a big draw ratio is blowing sand device for gas cylinder, includes the quick-witted case, is equipped with gas cylinder support, its characterized in that on the machine case: two sand blowing guns are also arranged on the case, two air cylinders are clamped on the air cylinder support, each air cylinder corresponds to one sand blowing gun, and each sand blowing gun is independently connected with a lifting driving device;
one of the two sand blowing guns is provided with a main spray head, the other is provided with a corner spray head, the main spray head is in a cylinder shape, the top end of the cylinder is cut into an inclined plane, an inclined sand outlet nozzle is formed, the inclined plane forms 30-60 degrees with the horizontal plane, the corner spray head is in a cylinder shape with a closed top end, the side wall of the corner spray head is provided with a large sand outlet nozzle and a small sand outlet nozzle, the large sand outlet nozzle is close to the top end, and the lower edges of the small sand outlet nozzle and the large sand outlet nozzle are flush.
2. The sand blowing device for a large aspect ratio gas cylinder as claimed in claim 1, wherein: the ratio of the diameters of the sand blowing pipes connected with the main spray head and the corner spray head is 12:10.
3. The sand blowing device for a large aspect ratio gas cylinder as claimed in claim 1, wherein: the machine case comprises a closed shell, and two sand blowing pipes are driven by the same sand blowing machine.
4. The sand blowing device for a large aspect ratio gas cylinder as claimed in claim 1, wherein: the gas cylinder support is characterized by further comprising a sealing disc positioned at the mouth of the gas cylinder, the sealing disc is in a cylinder shape with an upward opening, a mounting notch is formed in the cylinder wall, an opening is formed in the middle of the sealing disc, and the sand blowing pipe penetrates through the sealing disc.
5. The sand blowing device for a large length-diameter ratio gas cylinder as set forth in claim 4, wherein: the sealing disk is made of ceramic material.
6. The sand blowing device for a large length-diameter ratio gas cylinder as set forth in claim 4, wherein: the gas cylinder support is provided with a gas cylinder pressure head for applying downward pressure to the gas cylinder.
7. The sand blowing device for a large length-diameter ratio gas cylinder as set forth in claim 4, wherein: the bottom of the case is in an inverted cone shape, and a gravel recovery port is arranged at the top end of the cone.
8. The method for blowing sand for the large-length-diameter-ratio gas cylinder, which is characterized in that the device for blowing sand for the large-length-ratio gas cylinder according to claim 1 comprises a case, wherein a gas cylinder support is arranged on the case, and a sand blowing gun is arranged on the gas cylinder support, and the method is characterized in that: the two sand blowing guns are arranged, two air cylinders are clamped on the air cylinder support, each air cylinder corresponds to one sand blowing gun, the number of the two sand blowing guns is two, and each sand blowing gun is respectively connected with a lifting driving device;
the first step: installing gas cylinders, namely installing the two gas cylinders on a gas cylinder bracket respectively, and pressing the gas cylinders downwards by using a gas cylinder pressure head;
and a second step of: starting a sand blasting gun and moving two sand blasting pipes up and down;
and a third step of: after sand blasting is completed, exchanging the mounting positions of the two gas cylinders;
fourth step: starting the sand blasting gun, and moving the two sand blasting pipes up and down until sand blasting is completed.
9. The method for blowing sand for a large aspect ratio gas cylinder as claimed in claim 8, wherein: the gas cylinder support is connected with a driving device, and the gas cylinder is driven to rotate along the axis of the gas cylinder support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588438.6A CN113334261B (en) | 2021-05-28 | 2021-05-28 | Sand blowing device and method for large-length-diameter-ratio gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588438.6A CN113334261B (en) | 2021-05-28 | 2021-05-28 | Sand blowing device and method for large-length-diameter-ratio gas cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN113334261A CN113334261A (en) | 2021-09-03 |
| CN113334261B true CN113334261B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110588438.6A Active CN113334261B (en) | 2021-05-28 | 2021-05-28 | Sand blowing device and method for large-length-diameter-ratio gas cylinder |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237499A (en) * | 1998-05-08 | 1999-12-08 | 铃木株式会社 | Method for blasting inside surface of cylinder |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2649998A1 (en) * | 1976-10-30 | 1978-05-03 | Ind Gmbh & Co Kg | High pressure gas bottles cleaning machine - performs sand blasting of end of steel bottle and bottle end is enclosed in hood |
| CN201267961Y (en) * | 2008-09-27 | 2009-07-08 | 重庆斯普瑞涂装设备有限公司 | Novel abrasive blaster nozzle |
| CN201439183U (en) * | 2009-06-17 | 2010-04-21 | 成都格瑞特高压容器有限责任公司 | Dual-head steel cylinder inner wall shot blasting machine |
| CN102626905A (en) * | 2012-04-26 | 2012-08-08 | 天津昭阳科技有限公司 | Shot peening system for inner wall of steel cylinder |
| CN203125335U (en) * | 2013-01-22 | 2013-08-14 | 浙江金盾压力容器有限公司 | Nozzle for internal throwing of air cylinder and air cylinder shot blasting unit |
| CN203993566U (en) * | 2014-07-30 | 2014-12-10 | 天津市利友管业制造有限公司 | Ball blast spray gun in a kind of steel pipe |
| CN205465750U (en) * | 2016-01-12 | 2016-08-17 | 江苏久维压力容器制造有限公司 | Bottle inner wall rust cleaning device |
| CN112476253A (en) * | 2020-12-30 | 2021-03-12 | 岳阳凯美特电子特种稀有气体有限公司 | Steel gas cylinder inner wall rust cleaning device |
-
2021
- 2021-05-28 CN CN202110588438.6A patent/CN113334261B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237499A (en) * | 1998-05-08 | 1999-12-08 | 铃木株式会社 | Method for blasting inside surface of cylinder |
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| CN113334261A (en) | 2021-09-03 |
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