CN219295661U - Bidirectional shaftless propeller - Google Patents

Abstract

The utility model relates to a two-way shaftless propeller belongs to the screw under water, including being annular sealed cowling, sealed cowling inner wall rigid coupling has the collar, sealed cowling corresponds the first screw and the second screw that the collar both ends rotated and are connected with the coaxial line setting, first screw and second screw all include the impeller dish, impeller dish inner wall array is provided with a plurality of leaves oar, first screw and second screw outer wall rigid coupling respectively have first follower and second follower, the sealed cowling corresponds first screw one side and is provided with two motors, the output shaft of two motors rigid coupling respectively has first pivot and second pivot, first pivot corresponds first follower position department rigid coupling has first driving part, first driving part and first follower meshing, second pivot corresponds second follower position department rigid coupling has second driving part, second driving part and second follower meshing. The bidirectional propeller has the effect of improving the condition that the water grass and sundries are easy to wind the rotating shaft and the gear box when the bidirectional propeller runs.

Description

Bidirectional shaftless propeller

Technical Field

The application relates to the field of underwater propellers, in particular to a bidirectional shaftless propeller.

Background

At present, a propeller is used for a torpedo in the military field or a civil underwater detector, and when the propeller rotates, larger torque is generated on body equipment, even the advancing direction of the equipment is offset, so that the torpedo or the underwater detector frequently uses a bidirectional propeller to offset the generated torque.

The two-way propeller mainly drives two propellers to rotate simultaneously by a rotating shaft, the two propellers are reversely turned, a gear box is needed to be installed between the two propellers, two-way rotation of rotating shafts on two sides of the gear box is realized through cooperation between gears, the two propellers are driven to rotate in two directions, and the generated moment is offset mutually, so that balance of equipment is realized.

For the related art in the above, the gear box is arranged between two propellers, when the propellers rotate and push, water gushes out of the duct and can contain a plurality of sundries and waterweeds, the sundries and the waterweeds can be wound on the rotating shaft and the gear box, so that the transmission efficiency is reduced, when the transmission efficiency is serious, the motor is possibly burnt out, and in addition, the gear box can block the flow of water, so that the pushing speed of the bidirectional propeller is reduced.

Disclosure of Invention

In order to improve the condition that aquatic weeds and sundries are easy to wind a rotating shaft and a gear box when the bidirectional propeller runs, the application provides a bidirectional shaftless propeller.

The bidirectional shaftless propeller provided by the application adopts the following technical scheme:

the utility model provides a two-way shaftless propeller, including being annular sealed cowling, sealed cowling inner wall rigid coupling has the collar, sealed cowling corresponds the collar both ends and rotates respectively and be connected with first screw and the second screw that the coaxial line set up, first screw and second screw all are including being cylindric impeller dish, impeller dish inner wall array is provided with a plurality of impeller, first screw and second screw outer wall rigid coupling respectively have first follower and second follower, sealed cowling corresponds first screw one side and is provided with two motors, the output shaft rigid coupling of two motors has first pivot and second pivot respectively, first pivot corresponds first follower position department rigid coupling has first driving piece, first driving piece and first follower meshing, second pivot corresponds second follower position department rigid coupling has second driving piece, second driving piece and second follower meshing.

Through adopting above-mentioned scheme, two motors drive first pivot and the reverse rotation of second pivot respectively and drive first driving piece and second driving piece and rotate, and first driving piece and second driving piece respectively with first driven piece and second driven piece meshing drive first screw and the reverse rotation of second screw. The shaftless setting of first screw and second screw, the rotation of realizing through the cooperation of gear and ring gear improves the easy winding pivot of pasture and debris and the condition of gear box when two-way screw propeller operation, does not have the barrier in the duct simultaneously, and the paddle is dialled more smoothly when water flows, is favorable to improving two-way screw propeller's efficiency.

Preferably, the first driving member and the second driving member may be spur gears or helical gears, and the first driven member and the second driven member may be spur gears or helical gears.

Preferably, the sealing cover is fixedly connected with a sealing shaft sleeve at the position corresponding to the first rotating shaft and the second rotating shaft, and the sealing shaft sleeve is sleeved on the first rotating shaft and the second rotating shaft.

Through adopting above-mentioned scheme, the axle sleeve can play the effect of protection first pivot and second pivot, has improved first pivot and second pivot by aquatic debris winding's condition.

Preferably, the two ends of the sealing cover are provided with guide covers, the cross section of the guide cover parallel to the axial direction is gradually reduced from one side close to the impeller disc to one side far away from the impeller disc, and the guide covers can seal the gap between the sealing cover and the impeller disc.

Through adopting above-mentioned scheme, the shape of kuppe can make the water more smooth and easy flow through, can reduce the resistance of two-way screw propeller when the aquatic operation on the one hand, increases the efficiency of propeller, and on the other hand kuppe is in the same place with the sealed cowling grafting, and the dismouting is more convenient, is favorable to convenient dismantlement sealed cowling overhauls the screw.

Preferably, the position of the air guide sleeve, which corresponds to the first propeller, is rotationally connected with a plurality of first idler wheels, and the first idler wheels can be abutted to two ends of an impeller disc of the first propeller; the air guide sleeve and the mounting ring are rotatably connected with a plurality of second idler wheels at positions corresponding to the second propellers, and the second idler wheels can be abutted to two ends of the impeller disc of the second propeller.

Through adopting above-mentioned scheme, through first gyro wheel and second gyro wheel butt in the impeller dish, can increase the smoothness nature when the impeller dish rotates, reduce the wearing and tearing of impeller dish, be favorable to improving the efficiency of two-way screw propeller.

Preferably, the two impeller plates are provided with abutting parts along two ends of the axial direction, the abutting parts of the impeller plates are obliquely arranged, the two abutting parts of each impeller plate are obliquely arranged along the axial direction from one end which is close to each other to the other end which is far away from each other, the first roller and the second roller are both abutted to the abutting parts of the impeller plates, and the axial lines of the first roller and the second roller are respectively parallel to the inclined planes of the abutting parts.

Through adopting above-mentioned scheme, first gyro wheel and second gyro wheel all butt in the butt portion of impeller dish, and the axis is parallel with butt portion inclined plane, and first gyro wheel and second gyro wheel can provide the holding power of perpendicular to inclined plane for the impeller dish, and a plurality of first gyro wheels and second gyro wheel act on the butt portion at impeller dish both ends jointly, make the impeller dish more stable when rotating, reduce the probability that the shake skew takes place for the impeller dish.

Preferably, a line connecting the first rotating shaft and the second rotating shaft intersects with an axis of the seal cover.

Through adopting above-mentioned scheme, first pivot and second pivot symmetry set up in the both sides of first screw and second screw, make the radial force that the sealed cowling received more even, and the focus is more steady, is favorable to improving the stability of structure.

In summary, the present application has the following beneficial effects:

1. the two motors respectively drive the first rotating shaft and the second rotating shaft to reversely rotate so as to drive the first driving piece and the second driving piece to rotate, and the first driving piece and the second driving piece are respectively meshed with the first driven piece and the second driven piece so as to drive the first propeller and the second propeller to reversely rotate. The first propeller and the second propeller are arranged in a shaftless manner, rotation is realized through cooperation of the gear and the gear ring, the condition that waterweed and sundries are easy to wind a rotating shaft and a gear box when the bidirectional propeller runs is improved, meanwhile, no barrier exists in a duct, and when the blades dial water to flow, the bidirectional propeller is smoother, so that the efficiency of the bidirectional propeller is improved;

2. the shape of the guide cover can enable water to flow smoothly, on one hand, the resistance of the bidirectional propeller during running in water can be reduced, the efficiency of the propeller is increased, on the other hand, the guide cover and the sealing cover are spliced together, the disassembly and the assembly are more convenient, and the sealing cover is convenient to disassemble for overhauling the propeller;

3. the first roller and the second roller are both abutted to the abutting part of the impeller disc, the axis is parallel to the inclined plane of the abutting part, the first roller and the second roller can provide supporting force perpendicular to the inclined plane for the impeller disc, and the plurality of first rollers and the second roller act on the abutting parts at two ends of the impeller disc together, so that the impeller disc is more stable during rotation, and the probability of shaking and offset of the impeller disc is reduced.

Drawings

FIG. 1 is a schematic structural view of a bi-directional shaftless propeller of an embodiment of the present application;

FIG. 2 is a schematic view of the configuration of a protruding first follower of a bi-directional shaftless propeller of an embodiment of the present application;

FIG. 3 is a cross-sectional view of a protruding first active member of a bi-directional shaftless propeller of an embodiment of the present application;

FIG. 4 is a cross-sectional view of a protruding collar of a bi-directional shaftless propeller of an embodiment of the present application;

fig. 5 is an enlarged view of a portion a in fig. 4.

Reference numerals illustrate: 1. a mounting ring; 11. an impeller disc; 111. an abutting portion; 112. a first groove; 113. a second groove; 12. blade paddles; 13. a sealing cover; 14. a guide cover; 15. a motor; 16. sealing the shaft sleeve; 2. a first propeller; 21. a first follower; 22. a first rotating shaft; 23. a first driving member; 24. a first roller; 3. a second propeller; 31. a second follower; 32. a second rotating shaft; 33. a second driving member; 34. and a second roller.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a bidirectional shaftless propeller. Referring to fig. 1 and 2, including being annular sealed cowling 13, the fixed connection of sealed cowling 13 inner wall intermediate position department has concentric setting's collar 1, and sealed cowling 13 corresponds collar 1 both ends and rotates respectively and be connected with first screw 2 and second screw 3, and sealed cowling 13 can cover and locate first screw 2 and second screw 3. The first propeller 2 and the second propeller 3 are coaxially arranged, and the mounting ring 1 is coaxially arranged with the first propeller 2 and the second propeller 3. The first propeller 2 and the second propeller 3 comprise impeller discs 11, the impeller discs 11 are arranged in a cylindrical shape, and a plurality of blades 12 are arranged on the inner wall of the impeller discs 11 in an array manner. The outer ring of the impeller disc 11 of the first propeller 2 is fixedly connected with a first driven member 21, the outer ring of the impeller disc 11 of the second propeller 3 is fixedly connected with a second driven member 31, the first driven member 21 and the second driven member 31 are coaxially arranged, and the first driven member 21 and the second driven member 31 can be a straight gear ring, an oblique gear ring and the like.

Referring to fig. 1 and 3, the seal cover 13 is fixedly connected with two seal shaft sleeves 16 parallel to the axial direction, a connecting line between the two seal shaft sleeves 16 is intersected with the axial line of the seal cover 13, a yielding groove is formed at the position of the seal cover 13 corresponding to the seal shaft sleeve 16, and the seal shaft sleeves 16 are communicated with the yielding groove. The motor 15 is fixedly connected to one end, far away from the first propeller 2, of the length direction of the two sealing shaft sleeves 16, the first rotating shaft 22 and the second rotating shaft 32 which are coaxially arranged are fixedly connected to output shafts of the two motors 15 respectively, the first rotating shaft 22 and the second rotating shaft 32 are arranged along the length direction of the sealing shaft sleeves 16, the length direction of the first rotating shaft 22 extends to the position corresponding to the first propeller 2, the length direction of the second rotating shaft 32 extends to the position corresponding to the second propeller 3, and the first rotating shaft 22 and the second rotating shaft 32 penetrate through the yielding grooves.

Referring to fig. 3, a first driving member 23 is fixedly connected to a position of the first rotating shaft 22 corresponding to the first driven member 21 of the first propeller 2, and a second driving member 33 is fixedly connected to a position of the second rotating shaft 32 corresponding to the second driven member 31 of the second propeller 3, where the first driving member 23 and the second driving member 33 may be spur gears, helical gears, or the like. The first driving member 23 is engaged with the first driven member 21, and the second driving member 33 is engaged with the second driven member 31. The two motors 15 respectively drive the first rotating shaft 22 and the second rotating shaft 32 to rotate so as to drive the first driving member 23 and the second driving member 33 to rotate, and the first driving member 23 and the second driving member 33 rotate so as to drive the first driven member 21 and the second driven member 31 to rotate so as to drive the first propeller 2 and the second propeller 3 to rotate.

Referring to fig. 1 and 3, both ends of the seal cover 13 are respectively inserted with a guide cover 14, the guide covers 14 are fixed on the seal cover 13 through bolts, the guide covers 14 are arranged around the edges of the first propeller 2 and the second propeller 3 in a circle, the guide covers 14 are arranged in a collinear manner with the first propeller 2, the guide covers 14 can seal gaps between the seal cover 13 and the impeller disc 11, the guide covers 14 are streamline, the cross section of the guide covers 14 parallel to the axis direction is gradually reduced from one side close to the impeller disc 11 to one side far away from the impeller disc 11, and the guide covers 14 can reduce resistance borne by the first propeller 2 and the second propeller 3 under water. Before use, operators often inject a large amount of oil into the rotating joint of the impeller 11 relative to the sealing cover 13 and the air guide cover 14, so that certain oil pressure is maintained in the impeller 11 to prevent water from penetrating, the dynamic sealing effect is achieved, the sealing effect is enhanced, and the probability of rusting parts in the impeller 11 is reduced.

Referring to fig. 4 and 5, the two impeller plates 11 are provided with abutting portions 111 at both ends in the axial direction, the abutting portions 111 of the impeller plates 11 are provided obliquely, and the two abutting portions 111 of each impeller plate 11 are inclined toward the axis from one end closer to the other end farther from the other end. The air guide sleeve 14 and the mounting ring 1 are provided with first grooves 112 at two ends of the axis of the impeller plate 11 corresponding to the first propeller 2, and the first grooves 112 are arranged around the first propeller 2 in a circle. The air guide sleeve 14 is rotationally connected with a plurality of first rollers 24 corresponding to the first grooves 112 of the mounting ring 1, the first rollers 24 are arranged in a circle along the length of the first grooves 112, the plurality of first rollers 24 are all abutted to the abutting part 111 of the impeller disc 11 of the first propeller 2, and the axes of the first rollers 24 are all parallel to the inclined plane of the abutting part 111 abutted to the first rollers. Second grooves 113 are formed in the two ends of the air guide sleeve 14, corresponding to the axis of the impeller disc 11 of the second propeller 3, of the mounting ring 1, the second grooves 113 are arranged around the second propeller 3 in a circle, a plurality of second rollers 34 are connected in a rotary mode in the second grooves 113, corresponding to the air guide sleeve 14 and the mounting ring 1, the second rollers 34 are arranged in a circle array along the length of the second grooves 113, the plurality of second rollers 34 are abutted to the abutting portions 111 of the impeller disc 11 of the second propeller 3, and the axes of the second rollers 34 are parallel to the inclined planes of the abutting portions 111 abutted to the second rollers 34. The first roller 24 and the second roller 34 can provide force for the corresponding impeller plate 11 in the direction perpendicular to the abutting part 111, the two ends of the axis direction of the impeller plate 11 play a supporting role on the impeller plate 11, the impeller plate 11 is supported by the rollers, the production cost is low, and meanwhile, the abrasion of the impeller plate 11 can be effectively reduced.

The implementation principle of the bidirectional shaftless propeller provided by the embodiment of the application is as follows:

the first rotating shaft 22 and the second rotating shaft 32 are driven by the starting motor 15 to reversely rotate, the first driving part 23 is driven by the first rotating shaft 22 to rotate, the first driving part 23 is meshed with the first driven part 21, the first driven part 21 rotates along with the first driving part 23 to drive the first propeller 2 to rotate, the second driving part 33 is driven by the second rotating shaft 32 to rotate, the second driving part 33 is meshed with the second driven part 31, the second driven part 31 rotates along with the first driving part 23 to drive the second propeller 3 to rotate, the first propeller 2 and the second propeller 3 coaxially reversely rotate, in the rotating process, the first idler wheel 24 and the second idler wheel 34 are respectively supported on the first propeller 2 and the second propeller 3, the smoothness of rotation of the first propeller 2 and the second propeller 3 is improved while supporting force is provided, the propeller shaftless design is adopted, the propeller rotates along with the impeller disc 11, the propeller blades push water flow to flow smoothly from the duct, and the interference with a gear box or a shaft when sundries such as water grass flow through the duct is improved.

The embodiment of the application has the effect of improving the condition that waterweed and sundries are easy to wind a rotating shaft and a gear box when the bidirectional propeller runs.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes of structure, shape and principle of the present application, are intended to be encompassed within the scope of this application.

Claims (7)

1. A bi-directional shaftless propeller comprising a sealing cap (13) in the form of a ring, characterized in that: the utility model discloses a sealed cowling, sealed cowling (13) inner wall rigid coupling has collar (1), sealed cowling (13) correspond collar (1) both ends are rotated respectively and are connected with first screw (2) and second screw (3) that the coaxial line set up, first screw (2) with second screw (3) are all including being cylindric impeller dish (11), impeller dish (11) inner wall array is provided with a plurality of impeller (12), first screw (2) with second screw (3) outer wall rigid coupling has first follower (21) and second follower (31) respectively, sealed cowling (13) correspond first screw (2) one side is provided with two motors (15), two the output shaft rigid coupling of motor (15) have first pivot (22) and second pivot (32) respectively, first pivot (22) correspond first follower (21) position department rigid coupling has first driving piece (23), first driving piece (23) and second follower (31) meshing position second driving piece (31).

2. A bi-directional shaftless propeller as claimed in claim 1, wherein: the first driving member (23) and the second driving member (33) may be spur gears or helical gears, and the first driven member (21) and the second driven member (31) may be spur gears or helical gears.

3. A bi-directional shaftless propeller as claimed in claim 1, wherein: the sealing cover (13) is fixedly connected with a sealing shaft sleeve (16) at the position corresponding to the first rotating shaft (22) and the second rotating shaft (32), and the sealing shaft sleeve (16) is sleeved on the first rotating shaft (22) and the second rotating shaft (32).

4. A bi-directional shaftless propeller as claimed in claim 1, wherein: the two ends of the sealing cover (13) are provided with guide covers (14), the cross section of the guide covers (14) parallel to the axial direction is gradually reduced from one side close to the impeller disc (11) to one side far away from the impeller disc (11), and the guide covers (14) can seal a gap between the sealing cover (13) and the impeller disc (11).

5. A bi-directional shaftless propeller as claimed in claim 4, wherein: a plurality of first rollers (24) are rotatably connected to the positions of the guide cover (14) and the mounting ring (1) corresponding to the first propeller (2), and the first rollers (24) can be abutted to two ends of the impeller disc (11) of the first propeller (2); the air guide sleeve (14) and the installation ring (1) are rotatably connected with a plurality of second rollers (34) at positions corresponding to the second propeller (3), and the second rollers (34) can be abutted to two ends of the impeller disc (11) of the second propeller.

6. A bi-directional shaftless propeller as claimed in claim 5, wherein: two abutting portions (111) are formed in two ends of the impeller disc (11) in the axial direction, the abutting portions (111) of the impeller disc (11) are obliquely arranged, the two abutting portions (111) of each impeller disc (11) are obliquely inclined towards the axial direction from one end close to each other to the other end far away from each other, the first roller (24) and the second roller (34) are abutted to the abutting portions (111) of the impeller disc (11), and the axes of the first roller (24) and the second roller (34) are respectively parallel to the inclined planes of the abutting portions (111) in an abutting mode.

7. A bi-directional shaftless propeller as claimed in claim 1, wherein: a connecting line between the first rotating shaft (22) and the second rotating shaft (32) is intersected with the axis of the sealing cover (13).

Images