CN202464109U

CN202464109U - Ship propeller

Info

Publication number: CN202464109U
Application number: CN2012200299607U
Authority: CN
Inventors: 顾根新
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-21
Filing date: 2012-01-21
Publication date: 2012-10-03
Anticipated expiration: 2022-01-21

Abstract

The utility model discloses a ship propeller. A cylinder sleeve (10) has a bottom but not a cover, a center through hole and a group of water inlet holes (10a) are formed in a bottom plate, the left end of the cylinder sleeve (10) is open for forming a water outlet, a cylinder sleeve sliding bearing (2) is built in the center through hole, a reciprocating rod (8) penetrates through the cylinder sleeve sliding bearing (2) and is inserted into an inner cavity of the cylinder sleeve (10), a pulling disc connecting nut (12) is used for fixing a pulling disc (14) at the head part at the left end of the reciprocating rod (8), a driving piston (18) is fixed on the reciprocating rod (8) at a distance with the pulling disc (14), a conical surface of the truncated cone-shaped driving piston (18) is smooth and flat, a hollow driven piston (11) is freely sheathed on the reciprocating rod (8) between the pulling disc (14) and the driving piston (18), the thickness of the driven piston (11) is smaller than the spacing interval between the pilling disc (14) and the driving piston (18), a driven piston conical surface (11a) matched with the conical surface of the driving piston (18) is arranged on the end surface of the driven piston (11), which faces towards the driving piston (18), the outer diameter of the driven piston (11) is the same with that of the cylinder sleeve (10), and the outer diameter of the pulling disc (14) and the maximum outer diameter of the driving piston (18) are obviously smaller than the inner diameter of the cylinder sleeve (10). The ship propeller disclosed by the utility model is high in propulsion efficiency and relatively simple in structure.

Description

Marine propeller

Technical field: the utility model relates to marine propeller, especially pushes away water piston formula propelling unit.

Background technology: existing marine propeller mainly is a screw propeller.But screw propeller has two defectives, the one, blade tail end position push away the phenomenon that there is circumferential scattering in water, cause propulsion coefficient not high, the 2nd, the blade centre is zone of negative pressure all the time, causes cavitation.The patent No. is called piston type propeller and boats and ships thereof for the 87105745.A name; Reaching the patent No. is 98110697.8 utility model patents that are called marine propuision system and boats and ships thereof, has proposed a kind of water piston formula propelling unit that pushes away, owing to be axially to push away water; There is not circumferential scattering; Propulsion coefficient is high, but all a plurality of valves and spring thereof need be set, the structure more complicated.

The utility model content: the purpose of the utility model provides the high water piston formula that the pushes away marine propeller of a kind of propulsion coefficient, and structure is simple relatively.

For this reason, the technical solution of the utility model proposition is a kind of marine propeller; Mainly comprise cylinder sleeve, piston, reciprocating lever, inlet opening and water outlet; Cylinder sleeve is a horizontal cylinder that end uncovered is arranged, and a central through hole is arranged on the cylinder sleeve base plate, and close fit is equipped with a cylinder sleeve plain bearing in it; On this base plate around the central through hole also one group of annular spread identical be that the center is symmetrically distributed, inlet opening uniformly at interval with the cylinder sleeve line of centers, cylinder sleeve left end opening is water outlet.Reciprocating lever running-fit and water sealed pass the cylinder sleeve plain bearing and insert the cylinder sleeve inner chamber; The reciprocating lever tail end is that left end has a head that diameter is less; Apical head has one section screw thread; The disc that central through hole arranged draws dish to be enclosed within this head to draw the dish coupling nut will draw dish to be fixed on the omoplate of reciprocating lever head by one; Draw the internal diameter of the external diameter of dish much smaller than cylinder sleeve, and draw dish go up around the central through hole one group of also annular spread identical be that the center is symmetrically distributed, circle is drawn the dish through hole uniformly at interval to draw disk center's line.Piston has active piston and passive piston; With draw on the reciprocating lever that is spaced a distance of dish, the circular conical surface and the reciprocating lever that pass active piston by a piston pin link into an integrated entity active piston and reciprocating lever, this active piston is the cone of a truncation; It is the big frustum of the little right-hand member diameter of left end diameter; But its maximum gauge is much smaller than the cylinder sleeve internal diameter, its circular conical surface smooth, and piston pin two ends all are lower than said circular conical surface; The passive piston of the annular arrangement of a hollow draw the dish and active piston between sky be enclosed within on the reciprocating lever; Its thickness is less than above-mentioned spacing of drawing dish and active piston; And the difference of this thickness and this spacing is much smaller than the stroke of reciprocating lever; Passive piston area has a circular conical surface that matches with the active piston circular conical surface on that end face endoporus of active piston; Same smooth surface is smooth, and passive piston external diameter is identical with the cylinder sleeve internal diameter and can move, passive piston inner hole diameter then with draw that dish goes up that group annular spread draw two of symmetry in the dish through hole to draw the distance of coiling between the through hole outermost hole wall identical.A flap valve is hinged on the cylinder sleeve left end, is with torsion spring on its flap valve bearing pin, and the elastic force of torsion spring makes flap valve be in the position that water outlet is closed.

Therefore the utility model is for pushing away water piston formula propelling unit, and propulsion coefficient is high.Simultaneously, except flap valve, have only two circular conical surfaces between the piston to constitute a valve, structure is simple relatively.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Description of drawings: Fig. 1 be the utility model and boats and ships afterbody thereof vertically analyse and observe the local structure scheme drawing.

The specific embodiment: embodiment is as shown in Figure 1.The cylinder sleeve 10 of horizontal placement is a cylinder that end uncovered is arranged; A central through hole is arranged on its right-hand member base plate; Close fit is equipped with a cylinder sleeve plain bearing 2 in it; On this base plate around the central through hole also one group of annular spread identical be that the center is symmetrically distributed, inlet opening 10a uniformly at interval with cylinder sleeve 10 line of centerss, the number of inlet opening 10a is generally 3-6.Cylinder sleeve 10 left end openings are water outlet.Cylinder sleeve 10 base plate external diameters also are distributed with one group of tie bolt through hole greater than the external diameter of cylindrical shape part on greater than the base plate of cylindrical shape external diameter.The also water sealed of reciprocating lever 8 running-fits passes cylinder sleeve plain bearing 2 and inserts cylinder sleeves 10 inner chambers; Reciprocating lever 8 tail ends are that left end has a head that diameter is less; Thereby should form an omoplate on place's reciprocating lever 8; And apical head has one section screw thread, and disc shaped that central through hole arranged draws dish 14 to be enclosed within this head to draw dish coupling nut 12 will draw dish 14 to be fixed on the omoplate of reciprocating lever 8 by one, become a detouchable and connect.Draw the internal diameter of dish 14 external diameter much smaller than cylinder sleeve 10, draw around dish 14 central through holes one group of also annular spread identical be that the center is symmetrically distributed, draws uniformly at interval dish through hole 14a to draw dish 14 line of centerss, draw the number of dish through hole 14a generally also to be 3-6.With draw on dish 14 reciprocating levers 8 that are spaced a distance; The circular conical surface and the reciprocating lever 8 that pass active piston 18 by a piston pin 18a link into an integrated entity active piston 18 and reciprocating lever 8; This active piston 18 is cones of a truncation, i.e. the big frustum of the little right-hand member diameter of left end diameter, and its maximum gauge is much smaller than the internal diameter of cylinder sleeve 10; Its circular conical surface smooth, and the piston pin 18a two ends of passing circular conical surface all are lower than above-mentioned circular conical surface.Other have a hollow annular arrangement passive piston 11 draw the dish 14 and active piston 18 between sky be enclosed within on the reciprocating lever 8; Its thickness is less than above-mentioned spacing of drawing between dish 14 and the active piston 18, and the difference of this thickness and this spacing is much smaller than the stroke of reciprocating lever 8.Promptly there is a passive piston circular conical surface 11a who matches with active piston 18 circular conical surfaces passive piston 11 right sides on that end face endoporus of active piston 18, the same smooth in the surface of this passive piston circular conical surface 11a.The external diameter of passive piston 11 is identical with cylinder sleeve 10 internal diameters and can move; The diameter of bore of passive piston 11 then with draw dish 14 on that group annular spread draw two of symmetry among the dish through hole 14a to draw the distance between the dish through hole 14a outermost hole wall identical; Draw 14 last times of dish when passive piston 11 is attached to like this, passive piston 11 endoporus and draw dish 14 draw between the dish through hole 14a water route unimpeded.Two parallel spaces and the lug 17 parallel with cylinder sleeve 10 line of centerss are arranged on the cylinder sleeve 10 left end circumference, and the position of lug 17 is preferable with cylinder sleeve 10 upper positions.A size less elbow that individual through hole arranged vertical with flap valve 13 bodies is arranged at flap valve 13 tops; A flap valve bearing pin 15 is set on the elbow of two lugs 17 and flap valve 13; Flap valve 13 is hinged on the left end of cylinder sleeve 10; Be with a torsion spring 16 on the flap valve bearing pin 15 between two lugs 17, torsion spring 16 1 ends are fixed on flap valve 13 elbows, and the other end is fixed on the lug 17.The elastic force of torsion spring 16 makes flap valve 13 be in the position that water outlet is closed.Torsion spring 16 two ends fixing generally is that the small through hole rear curved of passing relevant position on the flap valve 13 is fixed, and be same, and the other end then passes on the lug 17 the small through hole rear curved and fixes.Directly be welded on flap valve 13 and lug 17 after also can be a bit of with torsion spring 16 bending two ends.

As shown in Figure 1, the utility model is installed in the tail end of boats and ships, by one group of cylinder sleeve tie bolt 9 cylinder sleeve 10 is fixed on the oxter plate 1 that inserts the vertical direction in the water, and cylinder sleeve 10 is immersed in the water fully.And engine is installed in the ship storehouse on cabin board 3 right sides, be 2008200818833 combustion engines that are called a kind of outputting reciprocating linear movement like the patent No..A manhole is arranged in the cabin board 3, and a storehouse plate plain bearing housing 4 inserts in this manhole and by one group of storehouse plate tie bolt 7 storehouse plate plain bearing housing 4 is fixed on the cabin board 3 of vertical direction.Close fit is equipped with a storehouse plate plain bearing 6 in the central through hole of storehouse plate plain bearing housing 4.Pass to reciprocating lever 8 water seals storehouse plate plain bearing 6 to the right; The right-hand member of reciprocating lever 8 also has a head that diameter is less; Thereby an omoplate is also arranged on this place's reciprocating lever 8, and and this apical head also has one section screw thread, the clutch 5 that central through hole arranged is enclosed within this head and is fixed on the omoplate of reciprocating lever 8 right-hand members by a clutch coupling nut 5a; Reciprocating lever 8 borrows clutch 5 to be connected with crank motion member in the engine, and reciprocating lever 8 does reciprocating linear motion under the drive of engine.If engine is the combustion engine that general output rotatablely moves, then also need increase a piston crank mechanism, with rotatablely moving of engine be converted into behind the linear reciprocating motion again with reciprocating lever 8 on clutch 5 be connected.In addition, cylinder sleeve plain bearing 2, storehouse plate plain bearing 6 and reciprocating lever 8 are the running-fit of water shutoff, and they are respectively mating plates, promptly during fabrication, and cylinder sleeve plain bearing 2 and reciprocating lever 8; Storehouse plate plain bearing 6 all matches through grinding, so reciprocating lever 8 all can move back and forth in two plain bearings and can not leak with reciprocating lever 8.

The utility model is work like this:

When reciprocating lever 8 was moved to the left the left-hand end position, active piston 18 was close to 11 liang of circular conical surfaces of passive piston each other, and drew dish 14 to separate with passive piston 11.

When reciprocating lever 8 moved right: flap valve 13 was closed under torsion spring 16 effects, and active piston 18 breaks away from passive piston 11, and both sealing surfaces are that circular conical surface separates.Reciprocating lever 8 continues to move to right; Drawing dish 14 to promote passive piston 11 moves to right together; Water then through inlet opening 10a, cylinder sleeve 10 inner chambers on passive piston 11 right sides, passive piston 11 endoporus, draw the drawing dish through hole 14a of dish on 14 to get into cylinder sleeve 10 inner chambers in passive piston 11 left sides; Be shifted to the right to the dextrad end position until reciprocating lever 8, accomplish the water inlet process.

When reciprocating lever 8 was moved to the left: active piston 18 contacted with passive piston 11 before this, and both circular conical surfaces are closed as sealing surface, and water entry is blocked, and drew dish 14 to separate with passive piston 11.Along with reciprocating lever 8 continues to move to left; Active piston 18 promotes passive piston 11 and moves to left, and the water of cylinder sleeve 10 inner chambers in passive piston 11 left sides is pushed flap valve 13 open and is pushed out water outlet, and boats and ships obtain power to the right; Move on to the left-hand end position until reciprocating lever 8, push away the water process and finish.

Reciprocating lever 8 moves back and forth, and accomplishes water inlet successively, pushes away the water process.

Claims

1. marine propeller; Mainly comprise cylinder sleeve, piston, reciprocating lever, inlet opening and water outlet is characterized in that: said cylinder sleeve (10) is a horizontal cylinder that end uncovered is arranged; On cylinder sleeve (10) base plate, a central through hole is arranged; In it close fit be equipped with a cylinder sleeve plain bearing (2), on this base plate around the central through hole one group of annular spread identical be that the center is symmetrically distributed, inlet opening (10a) uniformly at interval with cylinder sleeve (10) line of centers, cylinder sleeve (10) left end opening is water outlet; Cylinder sleeve (10) base plate external diameter also is distributed with one group of tie bolt through hole greater than the external diameter of cylindrical shape part on the base plate that divides external diameter greater than cylindrical part; Said reciprocating lever (8) running-fit and water sealed pass cylinder sleeve plain bearing (2) and insert cylinder sleeve (10) inner chamber; Reciprocating lever (8) tail end is that left end has a head that diameter is less; Apical head has one section screw thread; The disc that central through hole arranged draws dish (14) to be enclosed within this head to draw dish coupling nut (12) will draw dish (14) to be fixed on the omoplate of reciprocating lever (8) left end head by one; Draw the internal diameter of the external diameter of dish (14) much smaller than cylinder sleeve (10), and draw dish (14) go up around the central through hole one group of annular spread also identical be that the center is symmetrically distributed to draw dish (14) line of centers, draw uniformly at interval and coil through hole (14a); Said piston has active piston (18) and passive piston (11); With the reciprocating lever (8) that draws dish (14) to be spaced a distance on; The circular conical surface and the reciprocating lever (8) that are passed active piston (18) by a piston pin (18a) link into an integrated entity active piston (18) and reciprocating lever (8); This active piston (18) is the cone of a truncation; Be the big frustum of the little right-hand member diameter of left end diameter, and its maximum gauge is much smaller than the internal diameter of cylinder sleeve (10), its circular conical surface smooth; And the two ends of piston pin (18a) all are lower than described circular conical surface; The passive piston of the annular arrangement of a hollow (11) is positioned at and draws that sky is enclosed within on the reciprocating lever (8) between dish (14) and the active piston (18), and its thickness is less than above-mentioned spacing of drawing between dish (14) and the active piston (18), and the difference of this thickness and this spacing is much smaller than the stroke of reciprocating lever (8); Passive piston (11) has a passive piston circular conical surface (11a) that matches with active piston (18) circular conical surface on that end face endoporus of active piston (18); The same smooth in surface of this passive piston circular conical surface (11a), the internal diameter of the external diameter of passive piston (11) and cylinder sleeve (10) is identical and can move, passive piston (11) diameter of bore then with draw dish (14) to go up symmetrical in the dish through hole (14a) two of drawing of that group annular spread to draw the distance of coiling between through hole (14a) the outermost hole wall identical; There are two spaces to be parallel to each other again on cylinder sleeve (10) the left end circumference and the lug (17) parallel with cylinder sleeve (10) line of centers; Flap valve (13) has an elbow that the size vertical with body is less; A flap valve bearing pin (15) is set on the elbow of two lugs (17) and flap valve (13); Flap valve (13) is hinged on the left end of cylinder sleeve (10); Be with a torsion spring (16) on the flap valve bearing pin (15), torsion spring (16) two ends are connected on a lug (17) and flap valve (13) elbow, and the elastic force of torsion spring (16) makes flap valve (13) be in the position that water outlet is closed.