CN218622364U

CN218622364U - Sliding block device with asymmetric pulleys for trailing suction ship

Info

Publication number: CN218622364U
Application number: CN202222973931.2U
Authority: CN
Inventors: 李夏; 张启亮; 王蔚; 孙荣坤; 周子琛; 王惠泽
Original assignee: Chec Dredging Co Ltd
Current assignee: Chec Dredging Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-14
Anticipated expiration: 2032-11-09

Abstract

A slide block device with asymmetric pulleys for a trailing suction ship comprises: the body structure is connected with the pulley through the pulley shaft, one end of the pulley shaft is connected with the body structure through the stopping plate, the shaft sleeve is arranged between the pulley shaft and the pulley, two sides of the body structure are connected with the adjusting wedge, and the upper end and the lower end of the two sides of the body structure are respectively arranged on the upper wear-resistant block and the lower wear-resistant block. Compared with the prior art, the utility model, through the asymmetric pulley, when the slider slides up and down, the amplitude of the downward deviation of the bow side of the slider can be reduced, thereby reducing the stress between the slider and the ship body guide rail and further reducing the abrasion rate between the slider and the ship body guide rail; the design of the upper wear-resistant block and the lower wear-resistant block effectively reduces the transverse shaking of the sliding block, and further reduces the wear rate between the sliding block and the ship body guide rail and between the sliding block and the ship body side surface.

Description

Sliding block device with asymmetric pulleys for trailing suction ship

Technical Field

The utility model relates to a dredge boats and ships equipment technical field, design a drag suction marine slider device, especially relate to a drag suction marine slider device with asymmetric pulley.

Background

At present, a trailing suction hopper dredger plays a prominent role in the dredging market as a main vessel in dredging engineering. The drag suction ship mainly sucks up slurry dug by a drag head through a mud pump, conveys the slurry into a mud tank through a drag arm pipe, a mud suction pipe and a cabin inlet pipe, and finally discharges the slurry through mud discharge through a mud gate or through a mud discharge pipe through bow jet or bow blow. The slider device is used as a key link for connecting the harrow arm pipe and the ship hull broadside suction port, and the matching state of the slider device and the ship hull broadside suction port directly influences the dredging efficiency of the ship.

The existing sliding block device mainly adopts a symmetrical design, and the center of a pulley is positioned on the central line of the sliding block. Because the servo frame is directly connected with the slide block device and the servo frame is close to the bow side, the gravity center of the slide block device shifts towards the bow in the hoisting and sliding process, uneven abrasion among the slide block, the guide rail and the ship body side suction port is intensified at the moment, so that the gap between the slide block and the ship body suction port is gradually increased, and the dredging efficiency of the ship is reduced.

In order to solve the above problems, we have made a series of improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drag suction marine slider device with asymmetric pulley to overcome the above-mentioned shortcoming and not enough that prior art exists.

A slide block device with asymmetric pulleys for a trailing suction ship comprises: body structure, pulley spindle, pulley, check plate, axle sleeve, regulation slide wedge, the wear-resisting piece in upper portion and the wear-resisting piece in lower part, body structure passes through the pulley spindle and is connected with the pulley, pulley spindle one end is passed through check plate and body structural connection, be equipped with the axle sleeve between pulley spindle and the pulley, body structure both sides are connected with the regulation slide wedge, the upper end and the lower extreme of body structure both sides are located respectively to the wear-resisting piece in upper portion and the wear-resisting piece in lower part.

Further, body structure outside lower extreme and harrow arm return bend, half welt, half gland are connected through double-end nut, be equipped with wear-resisting bush between body structure and the harrow arm return bend, the harrow arm return bend is rotating structure.

Furthermore, the middle of the body structure is connected with a servo frame through a bolt, and the servo frame is adjacent to one side of the bow.

Further, the lower end of the body structure is provided with a suction port wear-resisting ring, and the suction port wear-resisting ring is in butt joint with the end face of the ship side suction port during operation.

Furthermore, the upper end of the adjusting wedge is provided with threads, the upper wear-resistant block and the body structure are fixed in a welding or thread mode, and the lower wear-resistant block and the body structure are connected in a welding or thread mode.

Furthermore, the longitudinal distance between the center of the pulley and the center line of the body structure is equal to 10-15% of the diameter of the ship side suction port.

Further, the pulley is arranged on the ship body guide rail.

The utility model has the advantages that:

the utility model discloses an asymmetric pulley of design in the marine slider device of trailing suction for the slider can reduce the range of slider bow sideslip when sliding from top to bottom, thereby reduces the atress between slider and the hull guide rail, and then reduces the wearing and tearing speed between slider and the hull guide rail.

The utility model discloses a distance between the upper and lower wear-resisting piece of rational design for the slider can be hugged closely the hull guide rail and slided, thereby effectively reduces transversely rocking of slider, and then reduces the wear rate between reduction slider and hull guide rail, the hull side face.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a cross-sectional view of the present invention at 1A.

Fig. 4 is a cross-sectional view at 1B of the present invention.

Fig. 5 is a schematic view of the installation structure of the servo frame of the present invention.

Reference numerals are as follows:

the structure comprises a body structure 100, a pulley shaft 200, a pulley 300, a stop plate 400, a shaft sleeve 500, an adjusting wedge 600, an upper wear-resistant block 700, a lower wear-resistant block 800 and a ship body guide rail 900.

The scraper arm comprises a scraper arm bent pipe 1, a half lining plate 2, a half gland 3, a wear-resistant lining 4, a servo frame 5, a suction port wear-resistant ring 6, an oil supply pipeline 7 and an adjusting nut 8.

Detailed Description

The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.

Example 1

Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is a schematic side view of the present invention. Fig. 3 is a cross-sectional view of the present invention at 1A. Fig. 4 is a cross-sectional view at 1B of the present invention. Fig. 5 is a schematic view of the installation structure of the servo frame of the present invention.

As shown in fig. 1 to 5, a slide block device for a trailing suction boat having asymmetric pulleys, includes: the pulley comprises a body structure 100, a pulley shaft 200, a pulley 300, a stop plate 400, a shaft sleeve 500, an adjusting wedge 600, an upper wear-resistant block 700 and a lower wear-resistant block 800, wherein the body structure 100 is connected with the pulley 300 through the pulley shaft 200, one end of the pulley shaft 200 is connected with the body structure 100 through the stop plate 400, the shaft sleeve 500 is arranged between the pulley shaft 200 and the pulley 300 and used for preventing the pulley shaft 200 from directly contacting with the pulley 300 to generate wear, and an oil supply pipeline 7 is arranged and used for lubricating the pulley 300, so that the normal operation of the pulley 300 is ensured and the wear is reduced.

The two sides of the body structure 100 are connected with the adjusting wedges 600, and the upper wear-resistant blocks 700 and the lower wear-resistant blocks 800 are respectively arranged at the upper end and the lower end of the two sides of the body structure 100.

The lower extreme is connected through double-end nut with harrow arm return bend 1, half welt 2, half gland 3 in body structure 100 outside, is equipped with wear-resisting bush 4 between body structure 100 and the harrow arm return bend 1, and harrow arm return bend 1 is rotating structure to satisfy the demand that the harrow arm was adjusted in the time of the boats and ships face different work condition of digging deeply.

The middle of the body structure 100 is connected with the servo frame 5 through a bolt, and the servo frame 5 is adjacent to one side of the bow. Because the servo frame 5 is heavy, when the sliding block device slides up and down, the bow side of the sliding block ship can deflect downwards, the stress between the sliding block ship and the guide rail is increased, and the contact wear rate is increased, therefore, the influence factors of the servo frame, the rake arm pipe and the like are comprehensively considered, the size of a suction port of the main body structure 100 is combined, the diameter of the suction port is 900mm, the center of a pulley shaft is designed to deflect towards the bow, the longitudinal distance S2 value between the center of the pulley shaft and the central line of the main body structure 100 is designed to be 120mm, so that the gravity center of the sliding block device when sliding up and down is ensured to be close to the position right below the lifting line of the bent pipe hanging bracket as much as possible, and the wear rate of the contact surface between the sliding block and the ship guide rail is further reduced.

The lower end of the body structure 100 is provided with a suction port wear-resisting ring 6, and the suction port wear-resisting ring 6 is butted with the side suction port end face of the ship body when in operation.

The upper end of the adjusting wedge 600 is provided with a thread, the adjusting wedge 600 can move up and down within a certain distance by adjusting the position of the nut 8, and when the lower end of the adjusting wedge 600 is worn, the adjusting wedge should be adjusted up and down in time to a corresponding position, so that good matching of a suction port of a sliding block device is ensured; when the adjusting wedge 600 is installed in place, the lower end of the adjusting wedge 600 is welded on the body structure 100, and the welding is firm, so that the play is prevented.

The upper wear-resistant block 700 is fixed to the body structure 100 by welding or screwing, and the lower wear-resistant block 800 is connected to the body structure 100 by welding or screwing. S1 is a lateral distance between the outer surfaces of the upper wear-resistant block 700 and the lower wear-resistant block 800, and is designed to be 50mm, which is equal to the thickness δ of the ship guide rail 900, so as to ensure uniform stress on the slider device in the lateral direction during sliding.

The longitudinal distance between the center of the pulley 300 and the center line of the body structure 100 is equal to 10-15% of the diameter of the ship side suction port.

The pulley 300 is provided on the hull guide 900.

The above description has been made of the embodiments of the present invention, but the present invention is not limited thereto, and various changes may be made without departing from the spirit of the present invention.

Claims

1. A sliding block device with asymmetric pulleys for a trailing suction ship is characterized by comprising: body structure (100), pulley shaft (200), pulley (300), stop plate (400), axle sleeve (500), regulation slide wedge (600), upper portion wear-resisting piece (700) and lower part wear-resisting piece (800), body structure (100) is connected with pulley (300) through pulley shaft (200), pulley shaft (200) one end is passed through stop plate (400) and is connected with body structure (100), be equipped with axle sleeve (500) between pulley shaft (200) and pulley (300), body structure (100) both sides are connected with regulation slide wedge (600), the upper end and the lower extreme of body structure (100) both sides are located respectively to upper portion wear-resisting piece (700) and lower part wear-resisting piece (800).

2. The sliding block device with the asymmetric pulleys for the trailing suction boat as claimed in claim 1, wherein: the scraper arm structure is characterized in that the lower end of the outer side of the body structure (100) is connected with the scraper arm bent pipe (1), the half lining plate (2) and the half pressing cover (3) through double-headed nuts, a wear-resistant bushing (4) is arranged between the body structure (100) and the scraper arm bent pipe (1), and the scraper arm bent pipe (1) is of a rotating structure.

3. The slide block device with the asymmetrical pulleys for the trailing suction ship in claim 1, wherein: the middle of the body structure (100) is connected with the servo frame (5) through a bolt, and the servo frame (5) is adjacent to one side of the bow.

4. The slide block device with the asymmetrical pulleys for the trailing suction ship in claim 1, wherein: the lower end of the body structure (100) is provided with a suction port wear-resisting ring (6), and the suction port wear-resisting ring (6) is in butt joint with the end face of the ship board side suction port during operation.

5. The sliding block device with the asymmetric pulleys for the trailing suction boat as claimed in claim 1, wherein: the upper end of the adjusting wedge (600) is provided with threads, the upper wear-resistant block (700) and the body structure (100) are fixed in a welding or thread mode, and the lower wear-resistant block (800) and the body structure (100) are connected in a welding or thread mode.

6. The sliding block device with the asymmetric pulleys for the trailing suction boat as claimed in claim 1, wherein: the longitudinal distance between the center of the pulley (300) and the central line of the body structure (100) is equal to 10-15% of the diameter of the ship side suction port.

7. The sliding block device with the asymmetric pulleys for the trailing suction boat as claimed in claim 1, wherein: the pulley (300) is arranged on the ship body guide rail (900).