CN212149258U - A marine propulsion device - Google Patents

Abstract

The utility model discloses a marine propulsion device, a first motor drives a first rod to rotate, a crank block structure is formed among the first rod, a second rod and a transmission block, and the transmission block reciprocates along the central direction of a transmission shaft; the transmission block drives the fixed block to reciprocate along the center direction of the transmission shaft, the main cutting knife moves along with the fixed block, the main cutting knife forms dynamic axial cutting, the floater wound on the transmission shaft is continuously cut, and the cutting effect and the cutting efficiency are improved. Through annular cutting knife, vice cutting knife and main cutting knife cooperation work, realize radially, the cutting of axial direction simultaneously, annular cutting knife, vice cutting knife can in time rub the winding thing that main cutting knife cut off, effectively protect the screw.

Description

A marine propulsion device

technical field

The utility model particularly relates to a marine propulsion device.

Background technique

Ship, a general term for all kinds of ships. Ships are vehicles that can sail or be berthed in waters for transportation or operations, and have different technical performance, equipment and structural types according to different usage requirements.

The ship propeller is connected to the output shaft of the power machine through the propeller through the transmission shaft. The transmission shaft is connected to the hull through the bearing, bearing seat and sealing device. The hull is provided with a ship stern tube at the connection of the propeller. 's voyage. During the working process of the existing ship propulsion, fishing nets, seaweed, cables, etc. are easily entangled on the transmission shaft, which seriously affects the normal operation of the ship.

Utility model content

The purpose of the utility model is to provide a marine propulsion device aiming at the deficiencies of the prior art.

A marine propulsion device includes a ship stern tube installed on a ship, a drive shaft with one end extending out of the ship stern tube and rotated and installed on the ship stern tube through rolling bearings, a motor installed on the ship and an output shaft installed on the drive shaft , the propeller installed on the drive shaft and located at the end of the drive shaft away from the motor, and the anti-winding structure sleeved on the drive shaft;

The anti-winding structure includes a fixed tube with both ends blocked and installed on the transmission shaft, and a hollow structure is arranged coaxially with the transmission shaft;

The first cutting assembly includes a fixed seat installed on the transmission shaft, a first motor installed on the fixed seat, a first rod installed on the output shaft of the first motor, a second rod hinged with the first rod at one end, and moved A transmission block mounted on the transmission shaft and hinged with the second rod, and a cutting piece installed on the transmission block through the transmission rod;

The cutting element includes a plurality of fixed blocks movably mounted on the transmission shaft and evenly distributed along the direction of the central axis of the transmission shaft and connected to each other by a third rod.

Further, a sliding column extending along the direction of the central axis of the transmission shaft is installed on the transmission shaft;

The bottom of the transmission block is provided with a chute A that cooperates with the sliding column, and the sliding column is inserted into the sliding channel A;

The bottom of the fixing block is provided with a chute B that cooperates with the sliding column, and the sliding column is inserted into the sliding channel B.

Further, the fixing tube is provided with a through groove for the main cutting knife to pass through.

Further, a plurality of annular cutting knives are arranged on the fixed pipe, and the annular cutting knives are distributed along the direction of the central axis of the fixed pipe and are located between two adjacent through grooves.

Further, the fixed pipe is provided with a plurality of divided groups distributed along the direction of the central axis of the fixed pipe;

The dividing group includes auxiliary cutting knives arranged on the fixed pipe and arranged in an annular array around the central axis of the fixed pipe, and located between two adjacent main cutting knives.

The utility model has beneficial effects: the first rod is driven to rotate by the first motor, a crank slider structure is formed between the first rod, the second rod and the transmission block, the transmission block reciprocates along the center direction of the transmission shaft; the transmission block drives the fixed block Reciprocating along the center direction of the transmission shaft, the main cutting blade moves with the fixed block, the main cutting blade forms a dynamic axial cutting, and continuously cuts the floating objects wrapped around the transmission shaft to improve the cutting effect and cutting efficiency. Through the cooperation of the annular cutting knife, the auxiliary cutting knife and the main cutting knife, the simultaneous cutting in the radial and axial directions can be realized.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the anti-winding structure of the present invention;

3 is a cross-sectional view of the anti-winding structure of the present invention.

In the picture: 1-Stern tube, 2-drive shaft, 3-motor, 4-propeller, 5-anti-winding structure, 6-fixed pipe, 7-first cutting assembly, 8-fixed seat, 10-first rod , 11-second rod, 12-transmission block, 13-transmission rod, 14-fixed block, 15-main cutting knife, 16-slide column, 17-through groove, 18-ring cutting knife, 19-split group, 20 -Secondary cutter.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

A marine propulsion device, comprising a ship stern tube 1 installed on a ship, one end extending out of the ship stern tube 1 and a transmission shaft 2 installed on the ship stern tube 1 through rolling bearings, installed on the ship and the output shaft is installed in the transmission shaft 2. The motor 3 on the shaft 2 is installed on the transmission shaft 2 and is located at the propeller 4 at the end of the transmission shaft 2 away from the motor 3, and the anti-winding structure 5 is sleeved on the transmission shaft 2;

The anti-winding structure 5 includes a fixed tube 6 with both ends blocked and installed on the transmission shaft 2, and a hollow structure is arranged coaxially with the transmission shaft 2. a cutting assembly 7;

The first cutting assembly 7 includes a fixed seat 8 installed on the transmission shaft 2, a first motor installed on the fixed seat 8, a first rod 10 installed on the output shaft of the first motor, and one end of which is hinged with the first rod 10. The second rod 11, the transmission block 12 movably installed on the transmission shaft 2 and hinged with the second rod 11, the cutting piece installed on the transmission block 12 through the transmission rod 13;

The cutting piece includes a plurality of fixed blocks 14 movably installed on the transmission shaft 2 and evenly distributed along the direction of the central axis of the transmission shaft 2 and connected to each other by a third rod. One end is installed on the fixed block 14 and the other end extends out of the fixed pipe 6 The main cutting knife 15.

A sliding column 16 extending along the direction of the central axis of the transmission shaft 2 is installed on the transmission shaft 2; the bottom of the transmission block 12 is provided with a sliding groove A that cooperates with the sliding column 16, and the sliding column 16 is inserted into the sliding groove A; There is a chute B that cooperates with the sliding column 16, and the sliding column 16 is inserted into the sliding channel B.

The fixed tube 6 is provided with a through groove 17 through which the main cutting blade 15 passes.

The first rod 10 is driven to rotate by the first motor, a crank-slider structure is formed between the first rod 10, the second rod 11 and the transmission block 12, the transmission block 12 reciprocates along the center direction of the transmission shaft 2; the transmission block 12 drives the fixed block 14 reciprocates along the central direction of the transmission shaft 2, the main cutting knife 15 moves with the fixed block 14, the main cutting knife 15 forms a dynamic axial cutting, and continuously cuts the floating objects wound on the transmission shaft 2 to improve the cutting effect and Cutting efficiency.

The fixed pipe 6 is provided with a plurality of annular cutting knives 18 , and the annular cutting knives 18 are distributed along the direction of the central axis of the fixed pipe 6 and located between two adjacent through grooves 17 . The fixed pipe 6 is provided with a plurality of groups of dividing groups 19 distributed along the central axis of the fixed pipe 6; 20 between the secondary cutting knives.

The annular cutting knife 18 and the auxiliary cutting knife 20 work together with the main cutting knife 15 to realize simultaneous cutting in the radial and axial directions. The annular cutting knife 18 and the auxiliary cutting knife 20 can shred the windings cut by the main cutting knife 15 in time. , effectively protect the propeller 4.

The working principle of the present utility model:

The motor drives the drive shaft to rotate, and the propeller rotates with the drive shaft to provide power for the ship; the first motor drives the main cutting knife to reciprocate, and the annular cutting knife and the auxiliary cutting knife rotate with the drive shaft to complete the cutting.

Numerous other changes and modifications may be made without departing from the spirit and scope of the present invention. It should be understood that the present invention is not limited to a particular form, and the scope of the present invention is defined by the appended claims.

Claims (5)

1. A marine propulsion device is characterized by comprising a ship stern tube (1) arranged on a ship, a transmission shaft (2) with one end extending out of the ship stern tube (1) and rotatably arranged on the ship stern tube (1) through a rolling bearing, a motor (3) arranged on the ship and an output shaft arranged on the transmission shaft (2), a propeller (4) arranged on the transmission shaft (2) and positioned at one end of the transmission shaft (2) far away from the motor (3), and an anti-winding structure (5) sleeved on the transmission shaft (2);

the anti-winding structure (5) comprises a fixed pipe (6) with two ends plugged and installed on the transmission shaft (2) and a hollow structure coaxial with the transmission shaft (2), and four first cutting assemblies (7) which are installed on the transmission shaft (2) and are annularly arrayed around the central axis of the transmission shaft (2);

the first cutting assembly (7) comprises a fixed seat (8) arranged on the transmission shaft (2), a first motor arranged on the fixed seat (8), a first rod (10) arranged on an output shaft of the first motor, a second rod (11) with one end hinged with the first rod (10), a transmission block (12) movably arranged on the transmission shaft (2) and hinged with the second rod (11), and a cutting piece arranged on the transmission block (12) through a transmission rod (13);

the cutting member is including installing on transmission shaft (2) and along transmission shaft (2) the central axis direction evenly distributed, through a plurality of fixed blocks (14) of third pole interconnect with moving, and main cutting knife (15) that one end was installed on fixed block (14) and the other end stretches out fixed pipe (6).

2. A propulsion device for ships according to claim 1, characterised in that the propeller shaft (2) is provided with a slide post (16) extending in the direction of the centre axis of the propeller shaft (2);

the bottom of the transmission block (12) is provided with a sliding chute A which is matched with the sliding column (16), and the sliding column (16) is inserted into the sliding chute A;

the bottom of the fixed block (14) is provided with a sliding groove B which is matched with the sliding column (16), and the sliding column (16) is inserted into the sliding groove B.

3. A marine propulsion device according to claim 1 or 2, characterised in that the stationary pipe (6) is provided with a through slot (17) for the passage of the main cutter (15);

be equipped with a plurality of annular cutting knife (18) on fixed pipe (6), annular cutting knife (18) are distributed and are located between two adjacent logical groove (17) along fixed pipe (6) the central axis direction.

4. A marine propulsion device according to claim 1 or 2, characterised in that the stationary pipe (6) is provided with a plurality of groups of segments (19) distributed in the direction of the centre axis of the stationary pipe (6);

the dividing group (19) comprises secondary cutting knives (20) which are arranged on the fixed pipe (6) and are annularly arrayed around the central axis of the fixed pipe (6) and positioned between two adjacent main cutting knives (15).

5. A propulsion device for ships according to claim 3, characterised in that said fixed tube (6) is provided with a plurality of groups of segments (19) distributed along the central axis of the fixed tube (6);

the dividing group (19) comprises secondary cutting knives (20) which are arranged on the fixed pipe (6) and are annularly arrayed around the central axis of the fixed pipe (6) and positioned between two adjacent main cutting knives (15).

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