CN117142752A - Spout adjustment mechanism of gas jet spray pipe - Google Patents
Spout adjustment mechanism of gas jet spray pipe Download PDFInfo
- Publication number
- CN117142752A CN117142752A CN202311111299.3A CN202311111299A CN117142752A CN 117142752 A CN117142752 A CN 117142752A CN 202311111299 A CN202311111299 A CN 202311111299A CN 117142752 A CN117142752 A CN 117142752A
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- jet
- nozzle
- spout
- hinge
- connecting rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 239000007921 spray Substances 0.000 title claims description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
Abstract
The invention belongs to the field of optical freeform surface manufacturing, and particularly discloses a nozzle adjusting mechanism of a gas jet nozzle, which comprises a jet platform and a nozzle fixed through the jet platform; and a nozzle adjusting mechanism for adjusting the diameter of the tail end of the nozzle of the jet pipe is arranged outside the nozzle below the jet flow platform. Compared with the prior art, the method has the advantages that the diameter of the jet nozzle is adjusted, the forming range of the jet forming method is increased, the frequent replacement of the jet nozzle is avoided, the experimental efficiency is improved, and the method has a pushing significance for the development of the forming mode of jet forming.
Description
Technical Field
The invention relates to the field of optical freeform surface manufacturing, in particular to a nozzle adjusting mechanism of a gas jet nozzle.
Background
The optical free-form surface is a special free-form surface, and can effectively improve the performance of an optical system, such as correcting aberration, improving image quality, expanding field of view and the like, due to a brand-new optical design concept, so that the optical free-form surface becomes a core key device of a new generation optical system. The optical free-form surface has the particularity that the design and application requirements put very strict requirements on the surface quality and the shape precision, the shape precision is required to reach the micron or even submicron level, and the surface roughness is required to reach the nanometer or even sub-nanometer level. However, the common basic theory and technology of optical free-form surface manufacturing are not established yet, so that the development of the optical free-form surface manufacturing technology is seriously affected, and the wide application of the optical free-form surface is hindered.
In the prior art, a jet forming mode is studied from a numerical simulation mode, and a mode of blowing the surface of molten glass is adopted to form a high-precision complex curved surface meeting optical requirements on the surface of the molten glass, and the forming process is studied through the numerical simulation mode. The processing mode has the advantages of no-die forming, high surface type precision, short processing period, no need of subsequent grinding processing, capability of changing the surface shape by adjusting the relevant gas flow velocity parameters of the cluster vector jet pipe, and suitability for flexible manufacturing. When the relevant gas flow speed parameters of the spray pipes are adjusted, the spray pipes with different nozzle diameters are required to be replaced, and the spray pipes are frequently replaced, so that the machining efficiency is affected.
Chinese patent application No. 201510799795.1 discloses an ejector and a jet system, wherein the ejector comprises: a spraying part and a diffusion part connected with the spraying part; wherein the spraying part is provided with a nozzle which is communicated with the diffusion cavity; the diffusion cavity is an inner cavity of the diffusion part; the nozzle is provided with an adjusting device for adjusting the size of the nozzle, and the adjusting device is an adjusting valve; according to the ejector, the adjusting device for adjusting the size of the nozzle is arranged at the nozzle of the spraying part, so that the applicability of the ejector is improved. However, the ejector and ejector system are for a jet pump, and although it is disclosed that the size of the jet orifice can be adjusted, the size of the jet orifice is adjusted by a valve, the size of the interior of the jet orifice is adjusted by the valve, and the diameter of the end of the jet orifice is not adjusted, obviously, this mode is not suitable for jet forming of an optical free-form surface.
Accordingly, there is a need to develop a jet adjustment mechanism for a gas jet nozzle.
Disclosure of Invention
In order to solve the technical problems, the invention provides a nozzle adjusting mechanism of a gas jet nozzle.
In order to achieve the above purpose, the invention is implemented according to the following technical scheme:
a nozzle adjusting mechanism of a gas jet nozzle comprises a jet platform and a nozzle fixed through the jet platform; and a nozzle adjusting mechanism for adjusting the diameter of the tail end of the nozzle of the jet pipe is arranged outside the nozzle below the jet flow platform.
Further, the nozzle adjusting mechanism comprises a connecting piece, a bearing seat, a bearing, a transmission shaft, a coupler, a screw and a nozzle adjusting unit, wherein the connecting piece is sleeved outside the spray pipe from top to bottom in a rotating mode, the top end of the connecting piece is fixed on the lower end face of the jet platform, the top end of the bearing seat is fixedly connected with the lower end of the connecting piece, the bearing is installed in the bearing seat in an interference fit mode, the top end of the transmission shaft is fixed on the inner ring of the bearing, the lower end of the transmission shaft is axially and fixedly connected with the top end of the screw through the coupler, and a power unit is connected outside the transmission shaft so as to drive the transmission shaft and the screw to rotate; the nozzle adjusting unit is connected to the lower end of the screw rod and used for adjusting the diameter of the nozzle end of the spray pipe.
Further, the nozzle adjusting unit comprises a nut seat, a first connecting rod, a polygonal hinge, a second connecting rod and a nozzle supporting framework, the lower end of the screw is in threaded fit with the inner wall of the nut seat, the polygonal hinge is arranged below the nut seat, and a plurality of hinge supports are arranged on the upper end face and the lower end face of the polygonal hinge; meanwhile, a plurality of hinge supports are correspondingly arranged on the peripheral side of the nut seat and the upper end surface of the polygonal hinge, and a connecting rod I is hinged between the two corresponding hinge supports; the nozzle supporting framework is hinged with the tail end of the spray pipe, a plurality of hinge supports are correspondingly arranged on the periphery of the nozzle supporting framework and the lower end face of the polygonal hinge, a connecting rod II is hinged between the two corresponding hinge supports, and a layer of skin is wrapped outside the nozzle supporting framework; the screw rod rotates to drive the nut seat to do linear motion, and the nut seat drives the first connecting rod to fold the polygonal hinge, and in the folding process of the polygonal hinge, the second lower end of the connecting rod drives the spout support framework to rotate towards the center relative to the spout opening to realize folding.
Further, the power unit comprises a motor, a pinion and a bull gear, wherein the motor is arranged in parallel with the spray pipe, the pinion is axially fixed at the end part of an output shaft of the motor, the bull gear is fixed on a transmission shaft, the pinion is meshed with the bull gear, and the motor is fixed on the lower end surface of the jet platform through a motor mounting frame.
Further, the upper end face of the jet flow platform is symmetrically fixed with supporting plates, and the upper end of the jet pipe is fixed by connecting the two supporting plates through bolts and nuts.
Preferably, the large gear is connected to the transmission shaft by a key.
Preferably, the motor is a servo motor.
Compared with the prior art, the method has the advantages that the diameter of the jet nozzle is adjusted, the forming range of the jet forming method is increased, the frequent replacement of the jet nozzle is avoided, the experimental efficiency is improved, and the method has a pushing significance for the development of the forming mode of jet forming.
Drawings
Fig. 1 is a front view of a gas jet nozzle adjustment mechanism of the present invention.
Fig. 2 is a structural view of a jet adjusting unit of the gas jet adjusting mechanism of the present invention.
FIG. 3 shows the upper end structure of the jet platform of the gas jet nozzle adjusting mechanism of the invention.
FIG. 4 shows a nozzle bottom end hinge support structure of the gas jet nozzle adjustment mechanism of the present invention.
FIG. 5 is a schematic view of a polygonal hinge 903 of the gas jet nozzle adjusting mechanism according to the present invention
FIG. 6 is a schematic view of a jet support skeleton 905 of a gas jet nozzle adjusting mechanism according to the present invention
Reference numerals in the drawings: 1. a spray pipe; 2. a support plate; 3. a jet platform; 4. a motor mounting rack; 5. a power unit; 501. a motor; 502. a pinion gear; 503. a key; 504. a large gear; 505. a transmission shaft; 506. a coupling; 507. a screw; 6. a connecting piece; 7. a bearing seat; 8. a bearing; 9. a spout adjusting unit; 901. a nut seat; 902. a first connecting rod; 903. a polygonal hinge; 904. a second connecting rod; 905. a spout support skeleton; 906. and a hinge support.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. The specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1-4, the embodiment specifically discloses a nozzle adjusting mechanism of a gas jet nozzle, which comprises a jet platform 3 and a nozzle 1 fixed through the jet platform 3; the nozzle adjusting mechanism for adjusting the diameter of the nozzle end of the nozzle 1 is arranged outside the nozzle 1 below the jet platform 3.
The purpose of this embodiment is to realize adjusting the diameter of jet nozzle through above-mentioned structure, increases the shaping scope of jet shaping method, has avoided frequent change spray tube.
Specifically, with continued reference to fig. 1 and 2, the spout adjusting mechanism includes a connecting piece 6, a bearing seat 7, a bearing 8, a transmission shaft 505, a coupling 506, a screw 507 and a spout adjusting unit 9, which are rotatably sleeved outside the spout 1 from top to bottom, wherein the top end of the connecting piece 6 is fixed on the lower end surface of the jet platform 2, the top end of the bearing seat 7 is fixedly connected with the lower end of the connecting piece 6, the bearing 8 is installed in the bearing seat 7 in an interference fit manner, the top end of the transmission shaft 505 is fixed on the inner ring of the bearing 8, the lower end of the transmission shaft 505 is axially and fixedly connected with the top end of the screw 507 through the coupling 506, and a power unit 5 is connected outside the transmission shaft 505 to drive the transmission shaft 505 and the screw 507 to rotate; the nozzle adjusting unit 9 is connected to the lower end of the screw 507 for adjusting the nozzle tip diameter of the nozzle 1.
In this embodiment, the power unit 5 includes a motor 501 with a parallel arrangement of the spray pipes, a pinion 502 axially fixed at the end of the output shaft of the motor 501, and a large gear 504 fixed on a transmission shaft 505, where the large gear 504 is connected to the transmission shaft 505 by a key 503, the pinion 502 is meshed with the large gear 504, and the motor 501 is fixed on the lower end surface of the jet platform 3 by a motor mounting frame 4, so that in order to control the forward and reverse rotation of the motor, the motor 501 adopts a servo motor.
Illustratively, when the motor 501 rotates clockwise, the pinion 502 is driven to rotate, which in turn drives the large gear 504 and the drive shaft 505 and the screw 507 to rotate counterclockwise.
In this embodiment, in order to describe the process of adjusting the diameter of the nozzle in detail, with continued reference to fig. 2, the nozzle adjusting unit 9 includes a nut seat 901, a first connecting rod 902, a polygonal hinge 903, a second connecting rod 904, and a nozzle supporting frame 905, the lower end of the screw 507 is in threaded engagement with the inner wall of the nut seat 901, the polygonal hinge 903 is disposed below the nut seat 901, and with reference to fig. 5, both the upper and lower end surfaces of the polygonal hinge 903 are provided with a plurality of hinge supports 906; meanwhile, a plurality of hinge supports 906 are arranged on the periphery side of the nut seat 901 and correspond to the hinge supports 906 on the upper end face of the polygonal hinge 903, and a connecting rod I902 is hinged between the two corresponding hinge supports 906; the spout support skeleton 905 is hinged to the tail end of the spout 1, referring to fig. 6, a plurality of hinge supports 906 are arranged on the periphery of the spout support skeleton 905 and correspond to the lower end face of the polygonal hinge 903, a connecting rod two 904 is hinged between the two corresponding hinge supports 906, and a layer of skin is wrapped outside the spout support skeleton 905 to ensure the closure of the spout.
For example, when the motor 501 rotates clockwise, the pinion 502 is driven to rotate, and then the large gear 504, the transmission shaft 505 and the screw 507 are driven to rotate anticlockwise, the screw 507 drives the nut seat 901 to do downward linear motion, and the first connecting rod 902 is driven by the nut seat 901 to descend by adopting hinge connection with the polygonal hinge 903, and meanwhile, the outer side of the polygonal hinge 903 and the lower end of the first connecting rod 902 rotate relatively, so that the polygonal hinge 903 swings downward to realize folding. Further, in the process that the inner side of the lower end of the polygonal hinge 903 and the hinge connection of the second connecting rod 904 are hinged to the polygonal hinge 903 to swing downwards, the second connecting rod 904 is driven to be pulled upwards and approach to the center, meanwhile, the lower end of the second connecting rod 904 is hinged to the spout supporting framework 905, and as the freedom degree of the y-axis direction of the second connecting rod 904 is limited when the second connecting rod 904 is lifted upwards, the lower end of the second connecting rod drives the spout supporting framework 905 to rotate towards the center relative to the opening of the spout 1 to realize folding, so that the diameter of the spout is reduced.
As shown in fig. 3, the support plates 2 are symmetrically fixed on the upper end surface of the jet platform 3 in this embodiment, and the two support plates 2 are connected by bolts and nuts to fix the upper end of the jet pipe 1, and the upper end of the jet pipe 1 is directly fixed between the two support plates 2, so that the jet pipe 1 is convenient to disassemble and assemble when the jet pipe 1 needs to be replaced.
Referring to fig. 1, when the nozzle diameter is adjusted by using the nozzle adjusting mechanism of the gas jet nozzle, the nozzle diameter is reduced by taking an example as an illustration, and the specific operation process is as follows:
when the motor 501 rotates clockwise, the pinion 502 is driven to rotate, then the large gear 504, the transmission shaft 505 and the screw 507 are driven to rotate anticlockwise, the nut seat 901 is driven to do linear motion downwards when the screw 507 rotates, the nut seat 901 drives the first connecting rod 902 to fold the polygonal hinge 903, and in the process of swinging the polygonal hinge 903 downwards, the second connecting rod 904 is driven to be pulled upwards and approach to the center, so that the lower end of the second connecting rod 904 drives the spout support skeleton 905 to rotate towards the center relative to the opening of the spray pipe 1 to achieve folding, the diameter of the spray hole is reduced, and the outer part of the spout support skeleton 905 is wrapped with a layer of skin, so that the closure of the spray hole is ensured.
The technical scheme of the invention is not limited to the specific embodiment, and all technical modifications made according to the technical scheme of the invention fall within the protection scope of the invention.
Claims (7)
1. A nozzle adjusting mechanism of a gas jet nozzle comprises a jet platform (3), and the nozzle (1) which penetrates through the jet platform (3) to be fixed; the method is characterized in that: the nozzle adjusting mechanism for adjusting the diameter of the nozzle end of the nozzle (1) is arranged outside the nozzle (1) below the jet platform (3).
2. The spout adjustment mechanism of a gas jet spout of claim 1, wherein: the jet adjusting mechanism comprises a connecting piece (6), a bearing seat (7), a bearing (8), a transmission shaft (505), a coupler (506), a screw (507) and a jet adjusting unit (9), wherein the connecting piece (6) is sleeved outside the jet pipe (1) from top to bottom in a rotating mode, the top end of the connecting piece (6) is fixed on the lower end face of the jet platform (2), the top end of the bearing seat (7) is fixedly connected with the lower end of the connecting piece (6), the bearing (8) is installed in the bearing seat (7) in an interference fit mode, the top end of the transmission shaft (505) is fixed on the inner ring of the bearing (8), the lower end of the transmission shaft (505) is fixedly connected with the top end of the screw (507) in an axial mode through the coupler (506), and a power unit (5) is connected outside the transmission shaft (505) so as to drive the transmission shaft (505) and the screw (507) to rotate; the nozzle adjusting unit (9) is connected to the lower end of the screw (507) and used for adjusting the diameter of the nozzle tail end of the nozzle (1).
3. The spout adjustment mechanism of a gas jet spout of claim 2, wherein: the spout adjusting unit (9) comprises a nut seat (901), a first connecting rod (902), a polygonal hinge (903), a second connecting rod (904) and a spout supporting framework (905), wherein the lower end of the screw rod (507) is in threaded fit with the inner wall of the nut seat (901), the polygonal hinge (903) is arranged below the nut seat (901), and a plurality of hinge supports (906) are arranged on the upper end face and the lower end face of the polygonal hinge 903; meanwhile, a plurality of hinge supports (906) are correspondingly arranged on the peripheral side of the nut seat 901 and the upper end surface of the polygonal hinge 903, and a connecting rod I (902) is hinged between the two corresponding hinge supports (906); the spout support framework (905) is hinged with the tail end of the spray pipe (1), a plurality of hinge supports are correspondingly arranged on the periphery of the spout support framework (905) and the lower end face of the polygonal hinge 903, a connecting rod II (904) is hinged between the two corresponding hinge supports (906), and a layer of skin is wrapped outside the spout support framework (905); the screw rod (507) drives the nut seat (901) to do linear motion when rotating, the nut seat (901) drives the first connecting rod (902) to fold the polygonal hinge (903), and in the folding process of the polygonal hinge (903), the second connecting rod (904) is driven to be pulled upwards and approach the center, so that the lower end of the second connecting rod (904) drives the spout support framework (905) to rotate towards the center relative to the opening of the spray pipe (1) to realize folding.
4. The spout adjustment mechanism of a gas jet spout of claim 2, wherein: the power unit (5) comprises a motor (501) with spray pipes arranged in parallel, a pinion (502) axially fixed at the end part of an output shaft of the motor (501), and a large gear (504) fixed on a transmission shaft (505), wherein the pinion (502) is meshed with the large gear (504), and the motor (501) is fixed on the lower end face of the jet platform (3) through a motor mounting frame (4).
5. The spout adjustment mechanism of a gas jet spout of claim 1, wherein: the upper end face of the jet flow platform (3) is symmetrically fixed with support plates (2), and the upper ends of the jet pipes (1) are fixed by connecting the two support plates (2) through bolts and nuts.
6. The spout adjustment mechanism of a gas jet spout of claim 4 wherein: the large gear (504) is connected to a transmission shaft (505) through a key (503).
7. The spout adjustment mechanism of a gas jet spout of claim 4 wherein: the motor (501) is a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311111299.3A CN117142752B (en) | 2023-08-31 | 2023-08-31 | Spout adjustment mechanism of gas jet spray pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311111299.3A CN117142752B (en) | 2023-08-31 | 2023-08-31 | Spout adjustment mechanism of gas jet spray pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117142752A true CN117142752A (en) | 2023-12-01 |
| CN117142752B CN117142752B (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311111299.3A Active CN117142752B (en) | 2023-08-31 | 2023-08-31 | Spout adjustment mechanism of gas jet spray pipe |
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| Country | Link |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5850974A (en) * | 1996-05-02 | 1998-12-22 | Grafotec Gmbh | Device to produce an adjustable fluid jet |
| CN106762859A (en) * | 2015-11-19 | 2017-05-31 | 中国石油天然气股份有限公司 | Ejector and fluidic system |
-
2023
- 2023-08-31 CN CN202311111299.3A patent/CN117142752B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5850974A (en) * | 1996-05-02 | 1998-12-22 | Grafotec Gmbh | Device to produce an adjustable fluid jet |
| CN106762859A (en) * | 2015-11-19 | 2017-05-31 | 中国石油天然气股份有限公司 | Ejector and fluidic system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117142752B (en) | 2024-02-27 |
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