CN201971445U - High-pressure-environment powder transmitting device with controllable flow - Google Patents
High-pressure-environment powder transmitting device with controllable flow Download PDFInfo
- Publication number
- CN201971445U CN201971445U CN2011200187024U CN201120018702U CN201971445U CN 201971445 U CN201971445 U CN 201971445U CN 2011200187024 U CN2011200187024 U CN 2011200187024U CN 201120018702 U CN201120018702 U CN 201120018702U CN 201971445 U CN201971445 U CN 201971445U
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- powder
- tube
- piston
- pressure
- powder tube
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Abstract
The utility model provides a high-pressure-environment powder transmitting device with controllable flow, comprising a powder cylinder, a piston, a powder transmitting screw rod and a powder container. As the piston is arranged in the powder cylinder, one path of high-pressure gas is introduced to the back part of the piston, the powder cylinder works in the environment with certain pressure, and the work pressure and the powder transmitting pressure of the powder cylinder can be guaranteed, and a stepping motor drives the powder transmitting screw rod to discharge powder, so that the flow and total quantity of the powder can be controlled accurately. The device can be widely applied to combustion powder injecting technology of a novel powder rocket engine.
Description
Technical field
The utility model relates to powder loading technique field, is specially the controlled hyperbaric environment dust feeder of a kind of flow.
Background technology
In present industrial circle, many production and experiment aspect all be unable to do without the powder loading technique, as the visual trace particle filling of combustion powder filling, the high pressure flow field PIV of later-model powder rocket engine, the powder filling of powder metallurgy industry and powder feeding of cladding laser surfaces rapid shaping or the like.At present, existing powder loading technique master uses pooled applications in the powder feeding of powder metallurgy industry, cladding laser surfaces rapid shaping and the powder feeding in the thermal spraying industry, the powder apparatus for filling of using in these industries, often only powder need be sent into atmospheric pressure environment, perhaps powder can be sent into hyperbaric environment, but the powder feeding flow is difficult for regulating.In the combustion powder loading technique of later-model powder rocket engine, need a kind of can be in hyperbaric environment controlled powder powder feeding technology to the powder feeding flow.
The utility model content
The technical matters that solves
For realizing the utility model proposes the controlled hyperbaric environment dust feeder of a kind of flow controlled to the powder feeding flow in hyperbaric environment, its technical scheme is:
Technical scheme
The hyperbaric environment dust feeder that described a kind of flow is controlled includes the powder tube, it is characterized in that: also include piston, powder feeding screw and the powder tube that falls; Described powder tube two ends are fixed with end cap seal respectively, have through hole on the end cap of an end therein, piston guide rod passes through hole and end cap seal transition fit, piston guide rod one end is captiveed joint with piston, piston and powder tube inner wall sealing transition fit, and piston can slide along powder tube inwall under loading, piston has been divided into the powder tube for powder chamber and non-for the powder chamber, have the equilibrium of pressure admission port non-the confession on the barrel of powder chamber, on for powder chamber barrel, have two coaxial powder feeding screw mounting holes, one of them mounting hole is fixed with the powder tube outward, powder feeding screw inserts the powder tube and the powder tube that falls, and adopts bearing to cooperate with the powder tube and the powder tube that falls respectively, and the thread segment of powder feeding screw is positioned at for the powder chamber and the powder tube that falls, the powder feeding screw power end links to each other with stepping motor, and stepping motor drives powder feeding screw and rotates and will send into the powder tube for powder in the powder chamber; The powder tube both sides that fall are connected with high-pressure air pipe and flour extraction pipe, and it is non-for the equilibrium of pressure admission port on the powder chamber that high-pressure air pipe has a bypass to connect in addition.
Beneficial effect
The utility model is by being provided with piston in the powder tube, high pressure gas are drawn one road back to piston, the powder tube is operated under certain pressure environment, the operation pressure and the powder feeding pressure of powder tube have been guaranteed, drive powder feeding screw control powder delivery by stepping motor, thus can accuracy control powder feeding flow and total amount.Device of the present utility model has been applied in the combustion powder loading technique of novel powder rocket engine.
Description of drawings
Fig. 1: structural representation of the present utility model;
Fig. 2: structure cutaway view of the present utility model; (A-A to)
Wherein: 1, powder feeding screw; 2, rear side housing; 3, tapered roller bearing; 4, powder tube; 5, piston; 6, piston guide rod; 7, upper end cover; 8, piston stop nut; 9, the powder tube that falls; 10, plain bearing; 11, front end cover; 12, bottom end cover; 13, high-pressure air pipe; 14, equilibrium of pressure breather pipe; 15, flour extraction pipe.
The specific embodiment
Below in conjunction with specific embodiment the utility model is described:
The utility model can be implemented in that to carry out granularity under the hyperbaric environment of 0.1MPa-5MPa be the accurate controlled powder feeding of micron-sized flow.
Embodiment:
Present embodiment is the dust-firing powder feeder unit that is applied on the novel powder rocket engine principle tests machine, and powder is that particle size is 39 microns a metal powder, adopts CO
2As high pressure gas, pressure is 0.45MPa.
With reference to accompanying drawing 2, device includes powder tube 4, piston 5, powder feeding screw 1 and the powder tube 9 that falls; Powder tube 4 lower ends and bottom end cover 12 bolt, and on the contact surface of powder tube 4 inwalls and bottom end cover 12, seal with O type circle; Powder tube 4 upper ends and upper end cover 7 screw threads are fixed, and seal with O type circle on the contact surface of powder tube 4 inwalls and upper end cover 7; Upper end cover 7 centers have axially extending bore, piston guide rod 6 passes through hole, there is the piston stop nut outer end of piston guide rod 6, the range of movement that is used for limited piston, captive joint with piston 5 screw threads in the inner of piston guide rod 6, piston guide rod 6 is a transition fit with upper end cover 7 through holes, and seals with O type circle on contact surface; Piston 5 and powder tube 4 inwall transition fit, and on contact surface, seal with O type circle, and piston 5 can slide along powder tube inwall under the effect of external load.
Piston 5 is non-for the powder chamber for powder chamber and top for the bottom with powder tube 4 minutes, with reference to accompanying drawing 1, has the equilibrium of pressure admission port on the non-sidewall for the powder chamber in top, is used to introduce high pressure gas, guarantees the operation pressure of powder tube.With reference to accompanying drawing 2, on the bottom sidewall of bottom, have two coaxial through-holes for the powder chamber, be used to place powder feeding screw 1, through hole therein, have the powder of falling tube 9 fixing with 4 welding of powder tube, the powder tube 9 that falls is three-port structure, and one of them path is coaxial for the sidewall through hole in powder chamber with the bottom; Powder feeding screw 1 passes the coaxial through-hole of bottom for the powder chamber, thread segment is positioned at the bottom for the powder chamber and the powder tube 9 that falls, the cylindrical section of powder feeding screw 1 thread segment front portion cooperates with the powder tube 9 that falls by plain bearing 10, and with front end cover 11 with plain bearing 10 axial restraints, front end cover 11 adopts bolted connection with the powder tube 9 that falls, the cylindrical section at powder feeding screw 1 thread segment rear portion adopts tapered roller bearing 3 to cooperate with powder tube 4, and with rear side housing 2 with tapered roller bearing 3 axial restraints, rear side housing 2 is connected with bolt with the powder tube, all adopts the sealing of O type circle on the contact surface of powder feeding screw 1 front and back cylindrical section and the powder tube 4 and the powder tube 9 that falls; Powder feeding screw 1 power termination stepping motor rotating shaft, stepping motor drive powder feeding screw 1 and rotate, and the screw thread on the powder feeding screw 1 supplies that powder send in the powder tube 9 the powder chamber from the bottom.
With reference to accompanying drawing 1, the path of powder tube 9 both sides of falling connects high-pressure air pipe 13 and flour extraction pipe 15 respectively, also have a bypass equilibrium of pressure breather pipe 14 on the high-pressure air pipe 13 and connect the non-equilibrium of pressure admission port of portion for the powder chamber, thereby can guarantee the operation pressure and the powder feeding pressure of powder tube simultaneously, the powder tube under the effect of piston high pressure to outside hyperbaric environment powder feeding, piston makes the bottom tight for powder in the powder chamber, guaranteed powder feeding screw 1 quantitative powder feeding, and by regulating stepping motor, flow and powder feeding total amount that can the accuracy control powder feeding.
Claims (1)
1. the hyperbaric environment dust feeder that flow is controlled includes the powder tube, it is characterized in that: also include piston, powder feeding screw and the powder tube that falls; Described powder tube two ends are fixed with end cap seal respectively, have through hole on the end cap of an end therein, piston guide rod passes through hole and end cap seal transition fit, piston guide rod one end is captiveed joint with piston, piston and powder tube inner wall sealing transition fit, and piston can slide along powder tube inwall under loading, piston has been divided into the powder tube for powder chamber and non-for the powder chamber, have the equilibrium of pressure admission port non-the confession on the barrel of powder chamber, on for powder chamber barrel, have two coaxial powder feeding screw mounting holes, one of them mounting hole is fixed with the powder tube outward, powder feeding screw inserts the powder tube and the powder tube that falls, and adopts bearing to cooperate with the powder tube and the powder tube that falls respectively, and the thread segment of powder feeding screw is positioned at for the powder chamber and the powder tube that falls, the powder feeding screw power end links to each other with stepping motor, and stepping motor drives powder feeding screw and rotates and will send into the powder tube for powder in the powder chamber; The powder tube both sides that fall are connected with high-pressure air pipe and flour extraction pipe, and it is non-for the equilibrium of pressure admission port on the powder chamber that high-pressure air pipe has a bypass to connect in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200187024U CN201971445U (en) | 2011-01-20 | 2011-01-20 | High-pressure-environment powder transmitting device with controllable flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200187024U CN201971445U (en) | 2011-01-20 | 2011-01-20 | High-pressure-environment powder transmitting device with controllable flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971445U true CN201971445U (en) | 2011-09-14 |
Family
ID=44576551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200187024U Expired - Lifetime CN201971445U (en) | 2011-01-20 | 2011-01-20 | High-pressure-environment powder transmitting device with controllable flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152962A (en) * | 2011-01-20 | 2011-08-17 | 西北工业大学 | Flow controllable high-pressure environment powder conveying device |
| CN109779743A (en) * | 2019-01-31 | 2019-05-21 | 西北工业大学 | A kind of powder particle strength charging method and system |
-
2011
- 2011-01-20 CN CN2011200187024U patent/CN201971445U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152962A (en) * | 2011-01-20 | 2011-08-17 | 西北工业大学 | Flow controllable high-pressure environment powder conveying device |
| CN102152962B (en) * | 2011-01-20 | 2012-10-10 | 西北工业大学 | Flow controllable high-pressure environment powder conveying device |
| CN109779743A (en) * | 2019-01-31 | 2019-05-21 | 西北工业大学 | A kind of powder particle strength charging method and system |
| CN109779743B (en) * | 2019-01-31 | 2020-05-26 | 西北工业大学 | Powder particle pneumatic filling method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110914 Effective date of abandoning: 20121010 |