A water jet bow thruster for a ship

Abstract

The utility model discloses a ship water jet bow thruster, comprising a thruster motor, a mounting seat is provided on the outer side of the thruster motor through a bolt fixing sleeve, a lifting hydraulic cylinder is installed on the upper side of the mounting seat, a thruster head is provided at one end of the transmission shaft of the thruster motor, blades are provided inside the two sides of the thruster head through an angle adjustment mechanism and a connecting shaft, the angle adjustment mechanism comprises a slider provided at the middle part of the thruster head through a screw transverse thread, and one end of the blade and the slider are meshed and connected through a gear rack group. In the utility model, blades are provided inside the two sides of the thruster head through the angle adjustment mechanism and the connecting shaft, and the front and rear movement swing adjustment angle of the blade is 120°, so that the front and rear swing angle of one end of the blade can be adjusted through the angle adjustment mechanism, and forward thrust or backward adjustment and use can be realized, as well as adjustment of different thrust sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of ship side thrust, in particular to a ship water-jet bow side thrust device. Background Art

[0002] Ships are vehicles that can sail or anchor in waters for transportation or operations. They have different technical performance, equipment and structural types according to different usage requirements. Ships are man-made vehicles that mainly operate in geographical waters. Bow thrusters are special propellers installed at the bow of a ship to improve the maneuverability of the ship and accurately maintain the ship's position. They are used in marine engineering ships and ferries.

[0003] A ship waterjet bow thruster device with application number 202221054305.7 in the prior art realizes multi-angle adjustment of the bow thruster body through the coordinated use of a support platform, a fixed ring, a through groove, a first motor, a first rotating shaft, a second motor, a second rotating shaft and a lifting mechanism, thereby solving the problem that the angle of the existing bow thruster device is fixed and the flexibility during use is poor. However, a single thruster cannot be adjusted for forward or backward use, which affects the flexibility of use. Utility Model Content

[0004] The utility model aims to provide a ship water jet bow thruster to solve the problem that a single propeller in the prior art cannot realize forward thrust or backward adjustment and use processing, which affects the flexibility of use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ship waterjet bow thruster, comprising a thruster motor, a mounting seat is provided on the outside of the thruster motor through a bolt fixing sleeve, a lifting hydraulic cylinder is installed on the upper side of the mounting seat, a thruster head is provided at one end of the transmission shaft of the thruster motor, blades are provided inside the two sides of the thruster head through an angle adjustment mechanism and a connecting shaft, the angle adjustment mechanism comprises a slider provided in the middle part of the thruster head through a transverse thread of a screw, and one end of the blade and the slider are meshed and connected by a gear rack group, and the forward and backward movement and swing adjustment angle of the blade is 120°.

[0006] Furthermore, one end of the blade away from the side thrust head is arranged in an arc shape, and two blades are symmetrically arranged about the side thrust head.

[0007] Furthermore, a mounting plate is provided at one end of the lifting hydraulic cylinder, and the mounting plate is fixed to the lower part of the ship by bolts.

[0008] Furthermore, a guide sliding hole is provided on the outer side of the side thrust head, and one end of the blade is slidably arranged with the guide sliding hole.

[0009] Furthermore, an adjusting hand wheel is provided at one end of the screw rod, a locking bolt is provided on the adjusting hand wheel, and a limiting plate is provided at the other end of the screw rod.

[0010] Furthermore, the gear rack assembly includes a driven gear arranged on the outside of one end of the blade, an active rack meshingly connected to the driven gear is provided on the outside of the slider, a through hole is opened inside the slider, and a threaded hole is provided at one end of the slider.

[0011] Furthermore, guide holes are provided inside both ends of the sliding block, and the guide holes are slidably arranged with the guide rods inside the side push head.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, blades are arranged inside the two sides of the side thrust head through the angle adjustment mechanism and the connecting shaft, and the forward and backward movement swing adjustment angle of the blade is 120°, so that the forward and backward swing angle of one end of the blade can be adjusted through the angle adjustment mechanism, and a single thruster can realize forward thrust or backward adjustment and use, as well as adjustment of different thrust sizes (when the angle between the blade and the horizontal plane is smaller, the contact area between the outer end of the blade and the water body is smaller, so that the thrust of the blade is smaller, on the contrary, when the angle between the blade and the horizontal plane is larger, up to 90 degrees, the contact area between the outer end of the blade and the water body is larger, and the thrust is greater), which improves the flexibility of use.

[0014] 2. The angle adjustment mechanism of the utility model includes a slider provided in the middle part of the side push head through the transverse thread of the screw, and one end of the blade and the slider are meshed and connected through a gear rack group, one end of the screw is provided with an adjustment handwheel, the gear rack group includes a driven gear arranged on the outside of one end of the blade, and an active rack meshed and connected with the driven gear is provided on the outside of the slider, so that the slider can be adjusted to move laterally by rotating the adjustment screw, thereby adjusting the forward and backward swing angle of one end of the blade through the gear rack group, and the adjustment is convenient and quick.

[0015] 3. The utility model has guide holes at both ends of the slider, and the guide holes are slidably arranged with the guide rod inside the side push head, so that the slider can be slidably guided when the slider is adjusted to move horizontally, which is beneficial to improving the stability of the blade's forward and backward swing adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is the overall structural front view of the utility model;

[0018] Figure 2It is a schematic diagram of the internal structure of the side thrust head of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a slider of the utility model.

[0020] In the figure: 1. thrust motor; 2. mounting seat; 3. threaded hole; 4. lifting hydraulic cylinder; 5. mounting plate; 6. transmission shaft; 7. thrust head; 8. guide slide hole; 9. blade; 10. adjusting hand wheel; 11. locking bolt; 12. connecting shaft; 13. driven gear; 14. slider; 15. screw; 16. active rack; 17. guide hole; 18. guide rod; 19. limit plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 In an embodiment of the utility model, a water jet bow thruster for a ship comprises a thruster motor 1, a mounting seat 2 is provided on the outer side of the thruster motor 1 through a bolt fixing sleeve, a lifting hydraulic cylinder 4 is installed on the upper side of the mounting seat 2, a thruster head 7 is provided at one end of a transmission shaft 6 of the thruster motor 1, an end of a blade 9 away from the thruster head 7 is set in an arc shape, and two blades 9 are symmetrically provided about the thruster head 7, blades 9 are provided inside the two sides of the thruster head 7 through an angle adjustment mechanism and a connecting shaft 12, and the thruster head 7 and the blades 9 are driven by the thruster motor 1 to rotate at a high speed to generate a spiral thrust to push the ship forward or backward.

[0023] like Figure 2The angle adjustment mechanism includes a slider 14 which is provided with a transverse thread through a screw rod 15 in the middle of the side push head 7, and one end of the blade 9 is meshed with the slider 14 through a gear rack group. The front and rear movement swing adjustment angle of the blade 9 is 120°, and the front and rear swing angle of one end of the blade 9 can be adjusted by the angle adjustment mechanism, so that the forward or backward adjustment can be realized, as well as the adjustment of different thrust sizes. The gear rack group includes a driven gear 13 arranged on the outer side of one end of the blade 9, and an active rack 16 meshed with the driven gear 13 is arranged on the outer side of the slider 14. A through hole is opened inside the slider 14, and a threaded hole 3 is arranged at one end of the slider 14, so that the slider 14 can be adjusted by rotating the slider 14. The section screw 15 can adjust the lateral movement of the slider 14, so as to adjust the forward and backward swing angle of one end of the blade 9 through the gear rack group, and the adjustment is convenient and quick; an adjusting hand wheel 10 is provided at one end of the screw 15, and a locking bolt 11 is provided on the adjusting hand wheel 10, which is used to lock one end of the screw 15 after adjustment, and a limiting plate 19 is provided at the other end of the screw 15, which is used to limit the other end of the screw 15 to prevent the slider 14 from being separated from one end of the screw 15; a guide slide hole 8 is opened on the outer side of the side push head 7, and one end of the blade 9 is slidably arranged with the guide slide hole 8, which is used to guide one end of the blade 9 when rotating and adjusting, which is beneficial to improve the stability of the swing adjustment of the blade 9.

[0024] like Figure 1 A mounting plate 5 is provided at one end of the lifting hydraulic cylinder 4, and the mounting plate 5 is fixed to the lower part of the ship by bolts, so as to facilitate the installation and fixation of the thrust motor 1.

[0025] like Figure 3 Guide holes 17 are provided at both ends of the slider 14, and the guide holes 17 are slidably arranged with the guide rods 18 inside the side push head 7, so that the slider 14 can be slidably guided when the lateral movement is adjusted, which is beneficial to further improve the stability of the forward and backward swing adjustment of the blade 9.

[0026] The working principle and use process of the utility model are as follows: when in use, the side thrust motor 1 is fixed to the lower part of the ship through the mounting seat 2, the lifting hydraulic cylinder 4 and the mounting plate 5. Since blades 9 are arranged inside the two sides of the side thrust head 7 through the angle adjustment mechanism and the connecting shaft 12, the side thrust motor 1 drives the side thrust head 7 and the blades 9 to rotate at high speed to generate a spiral thrust to push the ship forward or backward, and the angle adjustment mechanism can adjust the forward and backward swinging angle of one end of the blade 9, so as to realize forward thrust or backward adjustment and adjustment of different thrust sizes.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water jet bow thruster for a ship, comprising a thruster motor (1), characterized in that: The outer side of the thrust motor (1) is provided with a mounting seat (2) through a bolt fixing sleeve, and a lifting hydraulic cylinder (4) is installed on the upper side of the mounting seat (2). A thrust head (7) is provided at one end of the transmission shaft (6) of the thrust motor (1), and blades (9) are provided inside the two sides of the thrust head (7) through an angle adjustment mechanism and a connecting shaft (12). The angle adjustment mechanism includes a slider (14) provided in the middle part of the thrust head (7) through a screw rod (15) with a transverse thread, and one end of the blade (9) and the slider (14) are meshed and connected through a gear rack set, and the front and rear movement swing adjustment angle of the blade (9) is 120 degrees.

2. A ship water jet bow thruster according to claim 1, characterized in that: One end of the blade (9) away from the side thrust head (7) is arranged in an arc shape, and two blades (9) are symmetrically arranged with respect to the side thrust head (7).

3. A ship water jet bow thruster according to claim 1, characterized in that: A mounting plate (5) is provided at one end of the lifting hydraulic cylinder (4), and the mounting plate (5) is fixed to the lower part of the ship by means of bolts.

4. A ship water jet bow thruster according to claim 2, characterized in that: A guide sliding hole (8) is provided on the outer side of the side thrust head (7), and one end of the blade (9) is slidably arranged in the guide sliding hole (8).

5. A ship water jet bow thruster according to claim 1, characterized in that: An adjusting hand wheel (10) is provided at one end of the screw rod (15), and a locking bolt (11) is provided on the adjusting hand wheel (10).

6. A ship water jet bow thruster according to claim 1, characterized in that: The gear rack assembly comprises a driven gear (13) arranged on the outside of one end of the blade (9), an active rack (16) meshingly connected to the driven gear (13) is arranged on the outside of the slider (14), a through hole is opened inside the slider (14), and a threaded hole (3) is arranged at one end of the slider (14).

7. A ship water jet bow thruster according to claim 6, characterized in that: Guide holes (17) are provided inside the two ends of the sliding block (14), and the guide holes (17) are slidably arranged with guide rods (18) inside the side push head (7).

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