CN212149258U - 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

Marine propulsion device

Technical Field

The utility model particularly relates to a marine advancing device.

Background

Ships, a collective term for various ships. A ship is a vehicle which can be sailed or moored in a water area for transportation or operation, and has different technical performances, equipment and structural types according to different use requirements.

The ship propeller is connected with the output shaft of the power machine through a propeller via a transmission shaft, the transmission shaft is connected with a ship body via a bearing, a bearing seat and a sealing device, a ship stern tube is arranged at the position of the ship body corresponding to the propeller, and the transmission shaft drives the propeller to drive the ship to sail. In the working process of the existing ship propeller, fishing nets, seaweeds, mooring ropes and the like are easy to wind on a transmission shaft, and the normal work of the ship is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a marine advancing device to prior art's weak point.

A marine propulsion device comprises a ship stern tube arranged on a ship, a transmission shaft, a motor, a propeller and an anti-winding structure, wherein one end of the transmission shaft extends out of the ship stern tube and is rotatably arranged on the ship stern tube through a rolling bearing;

the anti-winding structure comprises a fixed pipe and four first cutting assemblies, wherein the two ends of the fixed pipe are plugged and are arranged on the transmission shaft, the fixed pipe and the transmission shaft are coaxially provided with a hollow structure, and the four first cutting assemblies are arranged on the transmission shaft and are annularly arrayed around the central axis of the transmission shaft;

the first cutting assembly comprises a fixed seat arranged on the transmission shaft, a first motor arranged on the fixed seat, a first rod arranged on an output shaft of the first motor, a second rod with one end hinged with the first rod, a transmission block movably arranged on the transmission shaft and hinged with the second rod, and a cutting piece arranged on the transmission block through a transmission rod;

the cutting member is including installing on the transmission shaft with removing and along transmission shaft central axis direction evenly distributed, through a plurality of fixed blocks of third pole interconnect, and one end is installed on the fixed block and the other end stretches out the main cutting knife of fixed pipe.

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

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

the bottom of the fixed block is provided with a sliding chute B which is matched with the sliding column, and the sliding column is inserted into the sliding chute B.

Furthermore, a through groove for the main cutting knife to pass through is arranged on the fixed pipe.

Furthermore, be equipped with a plurality of annular cutting knife on the fixed pipe, the annular cutting knife distributes and is located between two adjacent logical grooves along fixed pipe central axis direction.

Furthermore, a plurality of groups of segmentation groups distributed along the central axis direction of the fixed pipe are arranged on the fixed pipe;

the segmentation group comprises two main cutting knives which are arranged on the fixed pipe, surround the central axis of the fixed pipe, and are positioned between every two adjacent main cutting knives.

The utility model discloses beneficial effect has: the first motor drives the first rod to rotate, a crank block structure is formed among the first rod, the second rod and the transmission block, and the transmission block reciprocates along the center direction of the 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.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the anti-winding structure of the present invention;

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

In the figure: 1-ship stern tube, 2-transmission shaft, 3-motor, 4-propeller, 5-anti-winding structure, 6-fixed tube, 7-first cutting component, 8-fixed seat, 10-first rod, 11-second rod, 12-transmission block, 13-transmission rod, 14-fixed block, 15-main cutting knife, 16-sliding column, 17-through groove, 18-annular cutting knife, 19-cutting group and 20-auxiliary cutting knife.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

A marine propulsion device comprises a ship stern tube 1 arranged on a ship, a transmission shaft 2, a motor 3, a propeller 4 and an anti-winding structure 5, wherein one end of the transmission shaft 2 extends out of the ship stern tube 1 and is rotatably arranged on the ship stern tube 1 through a rolling bearing;

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 installed on the transmission shaft 2 and 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 includes movably install on transmission shaft 2 and along 2 central axis directions evenly distributed of transmission shaft, through a plurality of fixed blocks 14 of third pole interconnect, one end is installed on fixed block 14 and the other end stretches out the main cutting knife 15 of fixed pipe 6.

A sliding column 16 extending along the central axis direction of the transmission shaft 2 is arranged on the transmission 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 chute B which is matched with the sliding column 16, and the sliding column 16 is inserted into the sliding chute B.

The fixed pipe 6 is provided with a through groove 17 for the main cutting knife 15 to pass through.

The first rod 10 is driven to rotate through the first motor, a crank sliding block structure is formed among the first rod 10, the second rod 11 and the transmission block 12, and the transmission block 12 reciprocates along the central direction of the transmission shaft 2; the transmission block 12 drives the fixed block 14 to reciprocate along the center direction of the transmission shaft 2, the main cutting knife 15 moves along with the fixed block 14, the main cutting knife 15 forms dynamic axial cutting, the floater wound on the transmission shaft 2 is continuously cut, and the cutting effect and the cutting efficiency are improved.

Be equipped with a plurality of annular cutting knife 18 on the fixed pipe 6, annular cutting knife 18 distributes and is located between two adjacent logical grooves 17 along fixed pipe 6 the central axis direction. A plurality of segmentation groups 19 distributed along the central axis direction of the fixed tube 6 are arranged on the fixed tube 6; the segmented group 19 comprises secondary cutters 20 mounted on the stationary tube 6 and arranged in an annular array around the central axis of the stationary tube 6, between two adjacent primary cutters 15.

Through annular cutting knife 18, vice cutting knife 20 and main cutting knife 15 cooperation work, realize radially, the cutting simultaneously of axial direction, annular cutting knife 18, vice cutting knife 20 can in time rub the winding thing that main cutting knife 15 cut off, effectively protect screw 4.

The utility model discloses a theory of operation:

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

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited in this respect, and that the scope of the 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).

Images