CN210691814U - Engine model tail spouts extending structure - Google Patents
Engine model tail spouts extending structure Download PDFInfo
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- CN210691814U CN210691814U CN201921869062.0U CN201921869062U CN210691814U CN 210691814 U CN210691814 U CN 210691814U CN 201921869062 U CN201921869062 U CN 201921869062U CN 210691814 U CN210691814 U CN 210691814U
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Abstract
The utility model discloses an engine model tail spray telescopic structure, which comprises a tail spray blade, a tail spray barrel and a pulling ring; the tail spraying blade and the pulling ring are respectively arranged at two ends of the tail spraying cylinder; the tail spraying blades are arranged around the axis of the tail spraying cylinder; one end of the tail spraying blade facing the tail spraying barrel is movably connected to the end face of the tail spraying barrel; a push rod is movably connected between one side of the tail spraying blade facing the axis of the tail spraying cylinder and the pulling ring; the center of the pull ring is provided with a pushing center plate; at least two pull rods are movably connected between the pull ring and the push central plate; one side of the pushing central plate, which is back to the tail spraying cylinder, is connected with an output shaft of the motor; the utility model discloses, simple structure, cost reduction, simultaneously, can disperse the external force of the central board department of will concentrating on promoting in time on the pull rod.
Description
Technical Field
The utility model relates to an engine model tail spouts flexible technical field, specifically is engine model tail spouts extending structure.
Background
The tail jet is one of the components of the engine, mainly has the functions of jetting out products such as carbon dioxide, sulfur dioxide, carbon monoxide, nitrogen oxide and incompletely combusted micromolecule hydrocarbon substances after the fuel oil of the engine is combusted, playing a role of discharging waste gas, and simultaneously utilizing the reaction force generated by air during jetting to push the airplane.
In order to conveniently show and simulate the expansion process of engine tail jet propulsion, the tail jet real object is reduced according to a certain proportion to obtain a tail jet model.
The pushing ring of the tail spraying model at least needs three stress points to move simultaneously when moving, so that the stable advance of the pushing ring can be guaranteed, the blades are opened, and for the tail spraying model, three motors are needed to act on the three stress points of the pushing ring simultaneously, so that the tail spraying model is complex in structure and expensive in manufacturing cost.
According to the judgment of the common knowledge of the technical personnel in the field, the pushing ring is made into the pushing plate, and a motor pushing rod is adopted to act on the center of the pushing plate, so that the problems can be solved.
However, this method can concentrate the thrust of the motor push rod at the center of the push plate, which causes force concentration and leads to bending, damage or fracture of the push plate at the position after long-term use.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: how to solve in the tail-spraying model, the promotion ring stress point needs many motors more and the complicated costly problem of structure that causes.
In order to solve the technical problem, the utility model provides a following technical scheme: the engine model tail spray telescopic structure comprises a tail spray blade, a tail spray barrel and a pulling ring; the tail spraying blade and the pulling ring are respectively arranged at two ends of the tail spraying cylinder; the tail spraying blades are arranged around the axis of the tail spraying cylinder; one end of the tail spraying blade facing the tail spraying barrel is movably connected to the end face of the tail spraying barrel; a push rod is movably connected between one side of the tail spraying blade facing the axis of the tail spraying cylinder and the pulling ring; the center of the pull ring is provided with a pushing center plate; at least two pull rods are movably connected between the pull ring and the push central plate; one side of the pushing central plate, which is back to the tail spraying cylinder, is connected with an output shaft of the motor; the tail nozzle blade can be switched between a state A and a state B relative to the tail nozzle cylinder, and the state A: the length direction of the tail spraying blade is parallel to the axis of the tail spraying cylinder, and the state B is as follows: the tail spraying blades synchronously deviate from the axial direction of the tail spraying barrel outwards.
The output shaft of the motor is connected to the pushing central plate, the motor is started, the pushing central plate is pushed to enter the tail spraying cylinder along the axial direction of the tail spraying cylinder, the pushing central plate is pushed to pull the pulling ring to move through the pull rod, the moving direction is the same as that of the pushing central plate, the push rod movably connected to one side of the pulling ring is enabled to move, the tail spraying blade is driven to expand outwards under the conduction of force, the push rod deviates from the axial direction of the tail spraying cylinder, compared with a traditional engine tail spraying model, the stress point of the model is concentrated at the pushing central plate, the tail spraying blade can be driven to be opened only by adopting one motor, and when the pushing central plate is stressed, the thrust force applied by the pull rod is changed into the tensile force, the pulling ring is pulled to move, the external force concentrated at the pushing central plate can be dispersed on the pull rod in time, and the phenomenon that the thrust.
Preferably, the tail spraying blade is installed on the end face of the tail spraying barrel through a second hinge.
Preferably, the push rod is hinged and fixed with the tail spraying blade through a second hinge, and the other end of the push rod is hinged and fixed with the end face, facing the tail spraying barrel, of the pulling ring through a fourth hinge.
Preferably, one end of the pull rod is hinged and fixed with the inner wall of the pull ring through a first hinge, and the other end of the pull rod is hinged and fixed with the side wall of the push central plate through a fifth hinge.
Preferably, the pull rod and the end face of the pulling ring are provided with an included angle of 2-6 degrees.
The pull rod slope, the pulling force slope that the pull rod received, motor thrust partly turns into the pulling force, and partly turns into the turning force of hinge department, compares in not the pull rod that inclines, and the bending stress increase that hinge department received is easily suffered destruction.
Preferably, in the state a, the length direction of the inner surface of the tail spraying blade is parallel to the axis of the tail spraying cylinder, and one end of the tail spraying blade, which is far away from the tail spraying cylinder, forms a wedge-shaped included angle of 10 degrees inside and outside.
Preferably, in the state B, the plurality of tail spraying blades synchronously deviate outwards from the axial direction of the tail spraying cylinder, and the deviation angle ranges from 0 degree to 30 degrees.
Preferably, the number of the pull rods is six, and the pull rods are radially and uniformly distributed between the pulling ring and the pushing central plate.
The pushing force for pushing the central plate is uniformly divided into six parts to be applied to the pulling ring, so that the pulling force applied to the six parts of the pulling ring is one sixth of the pushing force, the component force is small, the pulling ring is easy to bear, the component forces are equal, and the pulling ring moves stably.
Connecting the output shaft of a motor to a pushing central plate, starting the motor, pushing the pushing central plate to enter the tail spraying cylinder along the axial direction of the tail spraying cylinder, simultaneously pushing the central plate to pull a pulling ring to move through a pull rod, wherein the moving direction of the pushing central plate is the same as that of the pushing central plate, and a push rod movably connected to one side of the pulling ring is enabled to move, and under the conduction of force, the pushing central plate is driven to expand outwards, the expanding angle deviates from the axial direction of the tail spraying cylinder and is slowly from 0 to 30 degrees, compared with the traditional engine tail spraying model, the stress point of the model is concentrated at the position of the pushing central plate, the tail spraying blade can be driven to expand by only adopting one motor, and simultaneously, when the pushing central plate is pushed to bear force, the thrust force borne by the pull rod is changed into pulling force, the pulling ring is pulled to move, the external force concentrated at the position of the pushing central plate, and is damaged.
Preferably, a locking cover for mounting the shaft end of the output shaft of the motor is welded on the right side of the pushing central plate; the locking cover is of a cylindrical structure coaxial with the tail spraying cylinder, and a through locking screw hole is formed in the cylinder wall of the locking cover; and a locking bolt is arranged in the locking screw hole.
Preferably, six locking screw holes are radially and uniformly distributed on the wall of the locking cover.
The motor output shaft is inserted into the locking cover, the locking bolt is screwed into the locking screw hole, the shaft end of the motor output shaft is locked, otherwise, the motor output shaft can be detached from the locking cover, and the motor output shaft and the tail spray telescopic structure of the engine model are convenient to disassemble and assemble.
Compared with the prior art, the beneficial effects of the utility model are that:
A. the stress points of the model are concentrated at the position of pushing the central plate, and the tail spraying blade can be driven to be opened by only adopting one motor, so that the structure is simple, the cost is greatly reduced, and meanwhile, when the central plate is pushed to bear the stress, the thrust force borne by the pull rod is changed into the tension force, the pull ring is pulled to move, the external force concentrated at the position of pushing the central plate can be dispersed on the pull rod in time, and the central plate is prevented from being damaged due to the concentration of the thrust force borne by the central plate;
B. the pulling ring is small in stress, uniform in stress and stable in movement; through setting up locking lid, locking bolt and locking screw, improve the convenient degree of dismouting that motor output shaft and this engine model tail spout extending structure.
Drawings
Fig. 1 is a schematic structural view of a tail jet telescopic structure of an engine model in an embodiment of the present invention;
FIG. 2 is a front sectional view of the present invention shown in FIG. 1;
fig. 3 is a schematic structural diagram of a tail-jet telescopic structure of an engine model in the second embodiment of the present invention;
fig. 4 is a front sectional view of fig. 3 according to the present invention.
In the figure: 1. tail spraying blades; 2. a tail spray cylinder; 3. pulling the ring; 4. a first hinge; 5. pushing the central plate; 6. a locking cover; 7. a pull rod; 8. a second hinge; 9. a third hinge; 10. a push rod; 11. a fourth hinge; 12. locking the screw hole; 13. and a fifth hinge.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
Referring to fig. 1 and 2, the embodiment discloses an engine model tail nozzle telescopic structure, which includes a tail nozzle blade 1, a tail nozzle barrel 2 and a pull ring 3. The tail spraying blade 1 and the pulling ring 3 are respectively arranged on the left side and the right side of the tail spraying cylinder 2. The tail spraying blades 1 are movably connected to the end face of the tail spraying barrel 2 around the axis of the tail spraying barrel 2. A push rod 10 is movably connected between one side of the tail spraying blade 1 facing the axis of the tail spraying cylinder 2 and the pulling ring 3. The center of the pulling ring 3 is provided with a pushing center plate 5. At least two pull rods 7 are movably connected between the pull ring 3 and the push central plate 5. One side of the push center plate 5 is connected to an output shaft (not shown) of a motor. The tail nozzle blade 1 can be switched between a state a and a state B with respect to the tail nozzle barrel 2, and the state a: the length direction of the tail spraying blade 1 is parallel to the axis of the tail spraying cylinder 2, and the state B is as follows: the tail spraying blades 1 are synchronously deviated from the axial direction of the tail spraying cylinder 2 outwards.
Connecting the output shaft of the motor to the pushing central plate 5, starting the motor, pushing the pushing central plate 5 to enter the tail spray cylinder 2 along the axial direction of the tail spray cylinder 2, simultaneously pushing the central plate 5 to pull the pull ring 3 to move through the pull rod 7, wherein the moving direction is the same as that of the pushing central plate 5, and enabling the push rod 10 movably connected to one side of the pull ring 3 to move, and under the conduction of force, driving the tail spray vane 1 to expand outwards and deviate from the axial direction of the tail spray cylinder 2, compared with the traditional engine tail spray model, the stress point of the model is concentrated on the pushing central plate 5, only one motor is needed to drive the tail spray vane 1 to open, and when the pushing central plate 5 is stressed, the thrust force is changed into the pulling force through the pull rod 7, the pulling pull ring 3 moves, and the external force concentrated on the pushing central plate 5 can be dispersed on the pull rod 7 in time, so as to avoid the concentration of the thrust force on the pushing central plate, and is damaged.
In this embodiment, six tie rods 7 are radially and uniformly distributed between the pulling ring 3 and the pushing central plate 5. The pushing force for pushing the central plate 5 is uniformly divided into six parts to be applied to the pulling ring 3, so that the pulling force applied to the six parts of the pulling ring 3 is one sixth of the pushing force, the component force is small, the pulling ring 3 is easy to bear, the component forces are equal, and the pulling ring 3 moves stably.
In the state B, the plurality of tail spraying blades 1 synchronously deviate from the axial direction of the tail spraying cylinder 2 outwards, and the deviation angle ranges from 0 degree to 30 degrees, namely 5 degrees in the embodiment.
The tail spraying blade 1 is arranged on the end surface of the tail spraying barrel 2 through a second hinge 9.
The push rod is hinged and fixed with the tail spraying blade through a second hinge, and the other end of the push rod is hinged and fixed with the end face of the pulling ring towards the tail spraying barrel through a fourth hinge.
One end of the pull rod is hinged and fixed with the inner wall of the pull ring through a first hinge, and the other end of the pull rod is hinged and fixed with the side wall of the push central plate through a fifth hinge.
And an included angle of 3 degrees is formed between the pull rod 7 and the end face of the pull ring 3.
The pull rod 7 inclines, the pulling force that the pull rod 7 received inclines, and motor thrust partly turns into the pulling force, and partly turns into the turning force of hinge department, compares in the pull rod 7 that does not incline, and the bending stress that receives at the hinge department increases, suffers destruction easily.
In the state A, the length direction of the inner surface of the tail spraying blade 1 is parallel to the axis of the tail spraying cylinder 2, and the inner surface and the outer surface of one end, far away from the tail spraying cylinder, of the tail spraying blade 1 form a wedge-shaped included angle of 10 degrees.
The working principle of the embodiment is as follows: connecting the output shaft of a motor to a pushing central plate 5, starting the motor, pushing the pushing central plate 5 to enter the tail spray cylinder 2 along the axial direction of the tail spray cylinder 2, simultaneously pushing the central plate 5 to pull a pull ring 3 to move through a pull rod 7, wherein the moving direction is the same as that of the pushing central plate 5, and enabling a push rod 10 movably connected to one side of the pull ring 3 to move, and under the conduction of force, driving the tail spray vane 1 to expand outwards and deviate from the axial direction of the tail spray cylinder 2, the expansion angle is slowly from 0 degree to 30 degrees, compared with a traditional engine tail spray model, the stress point of the model is concentrated at the pushing central plate 5, the tail spray vane 1 can be driven to expand by only adopting one motor, and simultaneously, when the pushing central plate 5 is stressed, the thrust force is changed into the tension force through the pull rod 7, the pulling pull ring 3 moves, and the external force concentrated at the pushing central plate 5 can be dispersed on the pull rod 7 in time, the central plate 5 is prevented from being damaged due to the concentration of the thrust force.
Example two
Referring to fig. 3 and 4, a locking cover 6 for mounting the shaft end of the motor output shaft is welded to the right side of the push center plate 5. The locking cover 6 is of a cylindrical structure coaxial with the tail spraying cylinder, and a through locking screw hole 12 is formed in the wall of the locking cover. A locking bolt (not shown) is arranged in the locking screw hole 12.
Six locking screw holes 12 are radially and uniformly distributed on the wall of the locking cover 6.
The motor output shaft is inserted into the locking cover 6, the locking bolt is screwed into the locking screw hole 12, the shaft end of the motor output shaft is locked, otherwise, the motor output shaft can be detached from the locking cover 6, and the motor output shaft and the tail jet telescopic structure of the engine model are convenient to disassemble and assemble.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above embodiments only show the embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (10)
1. Engine model tail spouts extending structure, its characterized in that: comprises a tail spray blade, a tail spray cylinder and a pull ring; the tail spraying blade and the pulling ring are respectively arranged at two ends of the tail spraying cylinder; the tail spraying blades are arranged around the axis of the tail spraying cylinder; one end of the tail spraying blade facing the tail spraying barrel is movably connected to the end face of the tail spraying barrel; a push rod is movably connected between one side of the tail spraying blade facing the axis of the tail spraying cylinder and the pulling ring; the center of the pull ring is provided with a pushing center plate; at least two pull rods are movably connected between the pull ring and the push central plate; one side of the pushing central plate, which is back to the tail spraying cylinder, is connected with an output shaft of the motor; the tail nozzle blade can be switched between a state A and a state B relative to the tail nozzle cylinder, and the state A: the length direction of the tail spraying blade is parallel to the axis of the tail spraying cylinder, and the state B is as follows: the tail spraying blades synchronously deviate from the axial direction of the tail spraying barrel outwards.
2. The engine model tail jet telescopic structure according to claim 1, characterized in that: the tail spraying blade is installed on the end face of the tail spraying barrel through a second hinge.
3. The engine model tail jet telescopic structure according to claim 1 or 2, characterized in that: the push rod is hinged and fixed with the tail spraying blade through a second hinge, and the other end of the push rod is hinged and fixed with the end face of the pulling ring towards the tail spraying barrel through a fourth hinge.
4. The engine model tail jet telescopic structure according to claim 3, characterized in that: one end of the pull rod is hinged and fixed with the inner wall of the pull ring through a first hinge, and the other end of the pull rod is hinged and fixed with the side wall of the push central plate through a fifth hinge.
5. The engine model tail jet telescopic structure according to claim 4, characterized in that: a locking cover for mounting the shaft end of the motor output shaft is welded on the right side of the pushing central plate; the locking cover is of a cylindrical structure coaxial with the tail spraying cylinder, and a through locking screw hole is formed in the cylinder wall of the locking cover; and a locking bolt is arranged in the locking screw hole.
6. The engine model tail jet telescopic structure according to claim 5, characterized in that: six locking screw holes are radially and uniformly distributed on the cylinder wall of the locking cover.
7. The engine model tail jet telescopic structure according to claim 1, characterized in that: and an included angle of 2-6 degrees is formed between the pull rod and the end face of the pulling ring.
8. The engine model tail jet telescopic structure according to claim 1, characterized in that: in the state A, the length direction of the inner surface of the tail spraying blade is parallel to the axis of the tail spraying cylinder, and the end, far away from the tail spraying cylinder, of the tail spraying blade is internally and externally provided with a wedge-shaped included angle of 10 degrees.
9. The engine model tail jet telescopic structure according to claim 1, 2 or 8, characterized in that: in the state B, the tail spraying blades synchronously deviate from the axial direction of the tail spraying cylinder outwards, and the deviation angle range of the tail spraying blades is 0-30 degrees.
10. The engine model tail jet telescopic structure according to claim 1, 2 or 8, characterized in that: the number of the pull rods is six, and the pull rods are radially and uniformly distributed between the pulling ring and the pushing central plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921869062.0U CN210691814U (en) | 2019-11-01 | 2019-11-01 | Engine model tail spouts extending structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921869062.0U CN210691814U (en) | 2019-11-01 | 2019-11-01 | Engine model tail spouts extending structure |
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| Publication Number | Publication Date |
|---|---|
| CN210691814U true CN210691814U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921869062.0U Active CN210691814U (en) | 2019-11-01 | 2019-11-01 | Engine model tail spouts extending structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565058A (en) * | 2021-08-02 | 2021-10-29 | 无锡友鹏航空装备科技有限公司 | Snow blowing vehicle nozzle system with automatic adjusting function |
-
2019
- 2019-11-01 CN CN201921869062.0U patent/CN210691814U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565058A (en) * | 2021-08-02 | 2021-10-29 | 无锡友鹏航空装备科技有限公司 | Snow blowing vehicle nozzle system with automatic adjusting function |
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