CN204677242U - Turbine internal shutoff - Google Patents
Turbine internal shutoff Download PDFInfo
- Publication number
- CN204677242U CN204677242U CN201520320608.2U CN201520320608U CN204677242U CN 204677242 U CN204677242 U CN 204677242U CN 201520320608 U CN201520320608 U CN 201520320608U CN 204677242 U CN204677242 U CN 204677242U
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- valve
- guide rod
- driveshaft
- turbine
- turbine shroud
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Abstract
The purpose of this utility model is to provide turbine internal shutoff, comprise turbine shroud, spiral case, motor, driveshaft, guide rod, valve, spiral case is fixed on turbine shroud, valve is arranged in turbine shroud, the end of valve is arranged to trapezoidal, the ingress of spiral case arranges the dovetail groove coordinated with valve end, valve and guide rod are connected, guide rod extend out to turbine shroud outside by the guiding groove on turbine shroud and is connected with driveshaft, driveshaft is provided with tooth bar, motor connects and actuation gear, and wheel and rack is meshed.The utility model is by the opening and closing of step motor control valve, fast response time, pressurized machine can be realized freely cut and cut out, the sealing surface of dovetail groove and valve composition not only realizes good seal action, and dovetail groove can also play automatic positioning action to the closedown of valve within the scope of certain machining error and alignment error.
Description
Technical field
The utility model relates to a kind of turbosupercharger, specifically control the valve of turbine opening and closing.
Background technique
In modern diesel engine, the use of pressurized machine is more and more extensive, and turbosupercharger can improve the power of diesel engine and improve Economy.In order to realize the matched well of pressurized machine and diesel engine, there is pressurization system miscellaneous, as consecutive pressurization system, two turbocharging systems, they control the incision of pressurized machine and cut out by designing valve on pipeline, can improve the Economy of diesel engine under different load.But there are some defects in the method that this traditional control pressurized machine cuts out, as valve seal does not sternly cause gas leakage, the not only bulky but also actual flow area of valve on pipeline is little, cause the restriction loss of gas flow, and the handoff procedure of valve is slow, this series of problem makes the matching result of pressurized machine and diesel engine undesirable.
Summary of the invention
The purpose of this utility model is to provide and can realizes pressurized machine and freely cut the turbine internal shutoff cut out.
The purpose of this utility model is achieved in that
The utility model turbine internal shutoff, it is characterized in that: comprise turbine shroud, spiral case, motor, driveshaft, guide rod, valve, spiral case is fixed on turbine shroud, valve is arranged in turbine shroud, the end of valve is arranged to trapezoidal, the ingress of spiral case arranges the dovetail groove coordinated with valve end, valve and guide rod are connected, guide rod extend out to turbine shroud outside by the guiding groove on turbine shroud and is connected with driveshaft, driveshaft is provided with tooth bar, motor connects and actuation gear, and wheel and rack is meshed.
The utility model can also comprise:
1, valve is arranged the spacing shaft shoulder, guide rod is under the effect of motor, when forward moves to the limit position of guiding groove side, the spacing shaft shoulder withstands on spiral case, the end of valve is positioned in dovetail groove, and turbine cuts out, and guide rod is oppositely movement under the effect of motor, the end of valve departs from dovetail groove, and turbine is opened.
Advantage of the present utility model is: the utility model is by the opening and closing of step motor control valve, fast response time, pressurized machine can be realized freely cut and cut out, the sealing surface of dovetail groove and valve composition not only realizes good seal action, and dovetail groove can also play automatic positioning action to the closedown of valve within the scope of certain machining error and alignment error.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model is in closed condition;
Fig. 2 is the schematic diagram that the utility model is in full-gear;
Fig. 3 is the schematic diagram that the utility model is in handoff procedure.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Composition graphs 1 ~ 3, Fig. 1 is that valve is in closed condition, and the dovetail groove now on valve left end trapezium structure and spiral case engages, and realize seal action, now waste gas can not flow through turbosupercharger expansion work, and pressurized machine does not work and is in the state of cutting out.Fig. 2 is that valve is in full-gear, and the trapezium structure now on valve departs from dovetail groove completely, and valve moves to the rightmost side, and pressurized machine is cut, and waste gas flows through turbosupercharger expansion work, and pressurized machine is started working.Fig. 3 is that valve is in handoff procedure.Stepper motor 1 is connected by key with gear 2, the tooth bar of gear 2 and driveshaft 5 left end coordinates, the convert rotational motion of stepper motor 1 is become the bilateral reciprocation of driveshaft 5, driveshaft 5 right-hand member has screw thread, with bolt, driveshaft 5 and guide rod 7 are coupled together, when control system receive pressurized machine need incision or cut out signal time, stepper motor 1 starts action, drive driveshaft 5 to the right or to left movement by gear 2, driveshaft 5 drives guide rod 7 again, because guide rod 7 is connected with valve 9, valve 9 together moves along with guide rod 7, so realize the opening and closing of valve 9, reach control object, gear 2 is connected by key with stepper motor 1, and is meshed with the left end tooth bar of driveshaft 5, the convert rotational motion of stepper motor 1 is become the bilateral reciprocation of driveshaft 5, spiral case 3 pairs of waste gas of turbosupercharger have leading role, and play a supporting role to package unit, valve 9 is just arranged in spiral case simultaneously, dovetail groove 4 on spiral case 3 is processing loop configuration on spiral case 3, and dovetail groove 4 uses high machining accuracy with the junction plane of valve 9, and such dovetail groove 4 can coordinate closely with the trapezium structure of valve 9, thus ensures the sealing of turbine internal shutoff, driveshaft 5 left end is processed with tooth bar, coordinates with gear 2, and driveshaft 5 right-hand member is processed with screw thread, and use bolt to be connected with guide rod 7, such driveshaft 5 just can drive guide rod 7 to be synchronized with the movement, guide rod 7 can only move in guiding groove 6, and guiding groove 6 plays leading role, guide rod 7 upper end and driveshaft 5 are bolted, and guide rod 7 lower end is arranged in a hole on valve 9, and the action of stepper motor 1 is just delivered on valve 9 by such guide rod 7, the control action of real motor stepper motor 1 pair of valve 9, the spacing shaft shoulder 8 plays safety protection effect, avoids the closed ground of turbine internal shutoff too tight, improves working life, the valve 9 of turbine internal shutoff is the structure being similar to sleeve, and valve 9 left end is designed to trapezium structure, the surface roughness that trapezium structure processing is higher, cooperatively interacts, can ensure the sealing that turbine internal shutoff is good with dovetail groove 4.
The utility model, at turbine indoor design valve, by the opening and closing of stepper motor 1 control valve 9, realizes pressurized machine and freely cuts and cut out.First, the position of the spacing shaft shoulder 8 is determined in position when being in closedown according to valve 9, when valve 9 is all opened, determine the stroke of valve 9, namely valve 9 is from closed condition to the displacement of movement when opening completely, this displacement parameter will be input to the stroke for control valve 9 in the control system of stepper motor 1, guide rod 7 is installed in the hole on valve 9, according to the length dimension of the displacement determination guiding groove 6 of valve 9, the length of guiding groove 6 is larger than the displacement of valve 9, the mounting point of stepper motor 1 is determined according to the position of guide rod 7, driveshaft 5 right-hand member is processed with screw thread, be convenient to adjust tooth bar on driveshaft 5 so when mounted relative to gear 2 position.When needs throttle down 9, stepper motor 1 receives the signal that valve 9 needs to close, start action, stepper motor 1 drives driveshaft 5 to be moved to the left, guide rod 7 is forced to and driveshaft 5 associated movement simultaneously, such guide rod 7 is with movable valve 9 to left movement, when driveshaft 5 motion reaches the displacement that valve 9 pre-sets, stepper motor 1 stops action, now the trapezium structure of valve 9 left end just in time engages with dovetail groove 4, turbine internal shutoff is in closed condition, and turbine is air inlet no longer, and pressurized machine cuts out system; When valve 9 opened by needs, stepper motor 1 receives the signal that valve 9 is opened, and starts action, stepper motor 1 counterrotating, gear 2 drives driveshaft 5 and guide rod 7 jointly to move right, and valve 9 left end trapezium structure starts to depart from dovetail groove 4, and valve 9 is opened gradually, turbine starts air inlet, when reaching the displacement of the valve 9 pre-set, stepper motor 1 stops the rotation, and now valve 9 moves to low order end, and valve 9 is opened completely, pressurized machine incision system, starts working.
Claims (2)
1. turbine internal shutoff, it is characterized in that: comprise turbine shroud, spiral case, motor, driveshaft, guide rod, valve, spiral case is fixed on turbine shroud, valve is arranged in turbine shroud, the end of valve is arranged to trapezoidal, the ingress of spiral case arranges the dovetail groove coordinated with valve end, valve and guide rod are connected, guide rod extend out to turbine shroud outside by the guiding groove on turbine shroud and is connected with driveshaft, driveshaft is provided with tooth bar, motor connects and actuation gear, and wheel and rack is meshed.
2. turbine internal shutoff according to claim 1, it is characterized in that: valve is arranged the spacing shaft shoulder, guide rod is under the effect of motor, when forward moves to the limit position of guiding groove side, the spacing shaft shoulder withstands on spiral case, and the end of valve is positioned in dovetail groove, turbine cuts out, guide rod is oppositely movement under the effect of motor, and the end of valve departs from dovetail groove, and turbine is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320608.2U CN204677242U (en) | 2015-05-18 | 2015-05-18 | Turbine internal shutoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320608.2U CN204677242U (en) | 2015-05-18 | 2015-05-18 | Turbine internal shutoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677242U true CN204677242U (en) | 2015-09-30 |
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ID=54176944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520320608.2U Active CN204677242U (en) | 2015-05-18 | 2015-05-18 | Turbine internal shutoff |
Country Status (1)
| Country | Link |
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| CN (1) | CN204677242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847420A (en) * | 2015-05-18 | 2015-08-19 | 哈尔滨工程大学 | Internal stop valve of turbine |
-
2015
- 2015-05-18 CN CN201520320608.2U patent/CN204677242U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847420A (en) * | 2015-05-18 | 2015-08-19 | 哈尔滨工程大学 | Internal stop valve of turbine |
| CN104847420B (en) * | 2015-05-18 | 2016-11-23 | 哈尔滨工程大学 | Turbine interior stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |