Dredging grab bucket structure for river channel dredging ship

Abstract

The utility model discloses a dredging grab bucket structure for a river channel dredging ship, which comprises a grab bucket main body, the grab bucket main body comprises a fixed arm, a hydraulic cylinder and a fixed beam are arranged on the fixed arm, a bucket is hinged on the fixed beam, a connecting arm is arranged between the bucket and the fixed arm, a cleaning device is arranged at the bottom of the fixed beam, and the cleaning device comprises a supporting block. A cleaning plate is arranged on the supporting block, a cleaning block is arranged on one side of the cleaning plate, a cleaning motor is arranged in the cleaning plate, a cleaning screw rod is arranged on a motor shaft of the cleaning motor, a moving block is arranged on the cleaning screw rod, a moving sliding rod is arranged between the moving block and the cleaning block, and the cleaning screw rod is driven by the cleaning motor to rotate, so that the position of the cleaning block is convenient to move; the steering motor drives the steering shaft and the cleaning plate to rotate, the inner wall of the bucket is conveniently scraped and swept through the cleaning block and the convex nail, and sludge adhesion is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging ships, and more specifically, to a dredging grab bucket structure for a river dredging ship. Background Art

[0002] In order to improve the flood control, drainage and irrigation capabilities of the river, as well as to improve the water quality of the river / reduce pollution, it is necessary to carry out regular dredging of the river. Currently, river dredging is no longer completed by manual labor. Generally, dredging ships are used for underwater dredging. The grab bucket extends into the riverbed and is hydraulically driven to insert the bottom mud and close the bucket to grab the underwater silt. It is then lifted onto the dredging ship and the grab bucket is opened to unload the silt directly into the mud barge. Finally, the shore grab bucket is used to move the silt to the silt dump on the shore.

[0003] In the existing technology, when cleaning the river silt, the inner wall of the grab bucket is prone to accumulate silt. The existing grab bucket cannot automatically clean the silt accumulated on the inner wall of the bucket, which affects the grabbing amount of the grab bucket and reduces the working efficiency of the grab bucket. At the same time, there is a lack of lubrication device between the rotating shaft and the rotating sleeve of the bucket. In the long run, it will not only increase the wear between the rotating shaft and the rotating sleeve, but also generate noise and increase energy loss. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a dredging grab bucket structure for a river dredging vessel, so as to solve the technical problem mentioned in the background technology that the prior grab bucket lacks a cleaning device and a lubricating device.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dredging grab bucket structure for a river dredging ship, comprising a grab bucket body, the grab bucket body comprising a fixed arm, the fixed arm is provided with a hydraulic cylinder and a fixed beam, a bucket is hingedly provided on the fixed beam, a connecting arm is provided between the bucket and the fixed arm, a cleaning device is provided at the bottom of the fixed beam, the cleaning device comprises a supporting block, a cleaning plate is provided on the supporting block, a cleaning block is provided on one side of the cleaning plate, a cleaning motor is provided in the cleaning plate, a cleaning screw is provided on the motor shaft of the cleaning motor, a moving block is provided on the cleaning screw, a moving slide bar is provided between the moving block and the cleaning block, a rotating shaft and a rotating sleeve are provided between the fixed beam and the bucket and between the connecting arm and the bucket, a lubricating device is provided between the rotating shaft and the rotating sleeve, the lubricating device comprises a lubricating pipe, a lubricating cavity is provided in the rotating shaft, the lubricating pipe extends into the lubricating cavity, and a rotating ball is provided on the rotating shaft.

[0008] The utility model is further configured that a steering shaft is provided between the cleaning plate and the support block, and a steering motor is provided on one side of the support block, so that the cleaning plate can be driven to rotate by the steering motor and the steering shaft.

[0009] The utility model is further configured that the cleaning block is provided with convex nails, thereby improving the cleaning ability of the cleaning block.

[0010] The utility model is further configured that the bucket is provided with teeth, which are convenient for reaching into the silt to grab the silt.

[0011] The utility model is further configured such that a lubrication hole is provided at one end of the lubrication tube, a piston rod is slidably provided on the lubrication tube, a handle is provided at one end of the piston rod, and a piston plate is provided at the other end, a piston head is provided on the piston plate and cooperates with the lubrication hole, and the injection and extraction of lubricating oil are facilitated by the cooperation of the piston plate, the piston rod and the handle.

[0012] The utility model is further configured that sliding blocks are provided on both sides of the piston plate, and a sliding groove matched with the sliding block is provided in the lubrication pipe to limit the moving direction of the piston plate.

[0013] The utility model is further configured that a lubrication spring is provided between the piston plate and the inner wall of the lubrication tube, so that the piston head is blocked in the lubrication hole to prevent the lubrication oil from leaking out.

[0014] The utility model is further configured that the lubricating pipe is provided with an air outlet, and a plug is threadedly connected to the air outlet to facilitate plugging the air outlet and prevent sludge from contaminating the lubricating pipe.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a dredging grab bucket structure for a river dredging ship, which has the following beneficial effects:

[0017] 1. The cleaning screw is driven by the cleaning motor to rotate, which is convenient for moving the cleaning block. The steering shaft and the cleaning plate are driven by the steering motor to rotate. The cleaning block and the convex nails are used to scrape the inner wall of the bucket to prevent silt from sticking.

[0018] 2. Through the action of the piston plate and the lubricating spring, the lubricating oil in the lubricating tube is injected into the lubricating cavity, and the rotating shaft and the rotating sleeve are lubricated by the rotating ball, thereby reducing the friction between the rotating shaft and the rotating sleeve, reducing wear, and improving the practicality of the grab bucket body.

[0019] 3. The fixed arm is driven by the hydraulic cylinder to move in the vertical direction, so that it cooperates with the connecting arm to control the opening and closing of the bucket. The operation is convenient. At the same time, the teeth are set to improve the silt cleaning ability of the grab body and improve the practicality of the grab body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the grab bucket structure in the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the bucket in the utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the cleaning device in the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating shaft and the rotating sleeve in the utility model;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the lubrication pipe in the utility model.

[0025] In the figure: 1. grab body; 2. fixed arm; 3. hydraulic cylinder; 4. fixed beam; 5. bucket; 6. connecting arm; 7. support block; 8. cleaning plate; 9. cleaning block; 10. cleaning motor; 11. cleaning screw; 12. moving block; 13. moving slide rod; 14. rotating shaft; 15. rotating sleeve; 16. lubrication pipe; 17. lubrication chamber; 18. rotating ball; 19. steering shaft; 20. steering motor; 21. convex nail; 22. teeth; 23. lubrication hole; 24. piston rod; 25. handle; 26. piston plate; 27. piston head; 28. sliding block; 29. ​​sliding groove; 30. lubrication spring; 31. air outlet; 32. plug. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5A dredging grab structure for a river dredging ship includes a grab body 1, the grab body 1 includes a fixed arm 2, a hydraulic cylinder 3 and a fixed beam 4 are arranged on the fixed arm 2, a bucket 5 is hingedly arranged on the fixed beam 4, a connecting arm 6 is arranged between the bucket 5 and the fixed arm 2, a cleaning device is arranged at the bottom of the fixed beam 4, the cleaning device includes a support block 7, a cleaning plate 8 is arranged on the support block 7, a cleaning block 9 is arranged on one side of the cleaning plate 8, a cleaning motor 10 is arranged in the cleaning plate 8, a cleaning screw 11 is arranged on the motor shaft of the cleaning motor 10, a moving block 12 is arranged on the cleaning screw 11, and the moving block 1 2 and the cleaning block 9 are provided with a movable slide bar 13, a rotating shaft 14 and a rotating sleeve 15 are provided between the fixed beam 4 and the bucket 5 and between the connecting arm 6 and the bucket 5, a lubricating device is provided between the rotating shaft 14 and the rotating sleeve 15, the lubricating device includes a lubricating tube 16, a lubricating cavity 17 is provided in the rotating shaft 14, the lubricating tube 16 extends into the lubricating cavity 17, a rotating ball 18 is provided on the rotating shaft 14, a steering shaft 19 is provided between the cleaning plate 8 and the supporting block 7, a steering motor 20 is provided on one side of the supporting block 7, a convex nail 21 is provided on the cleaning block 9, and a tooth 22 is provided on the bucket 5.

[0030] In this embodiment, when the grab bucket body 1 is used to clean the sludge, the hydraulic cylinder 3 is started, and the output end of the hydraulic cylinder 3 drives the fixed beam 4 to move downward, and through the cooperation of the connecting arm 6, drives the bucket 5 to open, and then deeply penetrates into the sludge through the teeth 22, and the output end of the hydraulic cylinder 3 contracts, and drives the bucket 5 to close through the connecting arm 6 to grab the sludge. After dumping the sludge, the cleaning motor 10 is driven, and the cleaning motor 10 drives the cleaning screw 11 to rotate, and the cleaning screw 11 drives the moving block 12 and the moving slide bar 13 to move, so that the cleaning block 9 moves to the side wall of the bucket 5, and at the same time, the steering motor 20 is started, and the motor shaft of the steering motor 20 drives the steering shaft 19 and the cleaning plate 8 to rotate, and then the sludge on the side wall of the bucket 5 is cleaned through the convex nails 21, thereby improving the practicality of the grab bucket body 1.

[0031] See also Figure 4-5 As an implementation method of the lubrication mechanism: a lubrication hole 23 is provided at one end of the lubrication tube 16, a piston rod 24 is slidably provided on the lubrication tube 16, a handle 25 is provided at one end of the piston rod 24, and a piston plate 26 is provided at the other end. A piston head 27 cooperating with the lubrication hole 23 is provided on the piston plate 26, sliding blocks 28 are provided on both sides of the piston plate 26, a sliding groove 29 cooperating with the sliding block 28 is provided in the lubrication tube 16, a lubrication spring 30 is provided between the piston plate 26 and the inner wall of the lubrication tube 16, an air outlet 31 is provided on the lubrication tube 16, and a plug 32 is threadedly connected to the air outlet 31.

[0032] More specifically, when in use, the lubrication tube 16 is threadedly connected to the rotating shaft 14, and the piston rod 24 is squeezed by the handle 25 and the piston rod 24 to inject the lubricating oil in the lubrication tube 16 into the lubrication cavity 17. The piston head 27 on the piston plate 26 is blocked on the lubrication hole 23 by the lubrication spring 30 to prevent the lubricating oil from leaking out. When the rotating sleeve 15 rotates on the rotating shaft 14, the rotating sleeve 15 contacts the rotating ball 18, driving the rotating ball 18 to rotate, and the bottom of the rotating ball 18 is dipped into the lubricating oil in the lubrication cavity 17. After lubricating, turn it upward to lubricate the rotating shaft 14 and the rotating sleeve 15 to reduce the friction and loss between the rotating shaft 14 and the rotating sleeve 15. When the lubricating oil is insufficient, remove the lubricating tube 16, insert one end of the lubricating hole 23 into the lubricating oil, open the plug 32, pull up the handle 25 and the piston rod 24, and the piston plate 26 uses the principle of the syringe to draw the lubricating oil into the lubricating tube 16, and then inject the lubricating oil into the lubricating cavity 17, and close the air outlet 31 to prevent silt from contaminating the lubricating tube 16.

[0033] In summary, when the overall equipment is in use or running: when the grab bucket body 1 is used to clean the sludge, the hydraulic cylinder 3 is started, and the output end of the hydraulic cylinder 3 drives the fixed beam 4 to move downward, and through the cooperation of the connecting arm 6, drives the bucket 5 to open, and then deeply penetrates into the sludge through the teeth 22, the output end of the hydraulic cylinder 3 contracts, and drives the bucket 5 to close through the connecting arm 6 to grab the sludge. After dumping the sludge, the cleaning motor 10 is driven, and the cleaning motor 10 drives the cleaning screw 11 to rotate, and the cleaning screw 11 drives the moving block 12 and the moving slide bar 13 to move, so that the cleaning block 9 moves to the side wall of the bucket 5, and at the same time, the steering motor 20 is started, and the motor shaft of the steering motor 20 drives the steering shaft 19 and the cleaning plate 8 to rotate, and then the sludge on the side wall of the bucket 5 is cleaned through the convex nail 21, thereby improving the practicality of the grab bucket body 1.

[0034] When in use, the lubrication tube 16 is threadedly connected to the rotating shaft 14, and the piston rod 24 is squeezed by the handle 25 and the piston rod 24 to inject the lubricating oil in the lubrication tube 16 into the lubrication cavity 17. The piston head 27 on the piston plate 26 is blocked on the lubrication hole 23 by the lubrication spring 30 to prevent the lubricating oil from leaking out. When the rotating sleeve 15 rotates on the rotating shaft 14, the rotating sleeve 15 contacts the rotating ball 18 to drive the rotating ball 18 to rotate. After the bottom of the rotating ball 18 is dipped into the lubricating oil in the lubrication cavity 17, , turn it upward, lubricate the rotating shaft 14 and the rotating sleeve 15, reduce the friction and loss between the rotating shaft 14 and the rotating sleeve 15. When the lubricating oil is insufficient, remove the lubricating tube 16, insert one end of the lubricating hole 23 into the lubricating oil, open the plug 32, pull up the handle 25 and the piston rod 24, and the piston plate 26 uses the principle of the syringe to draw the lubricating oil into the lubricating tube 16, and then inject the lubricating oil into the lubricating cavity 17, and close the air outlet 31 to prevent silt from contaminating the lubricating tube 16.

[0035] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A dredging grab bucket structure for a river dredging vessel, comprising a grab bucket body (1), characterized in that: The grab bucket body (1) comprises a fixed arm (2), the fixed arm (2) is provided with a hydraulic cylinder (3) and a fixed beam (4), the fixed beam (4) is hingedly provided with a bucket (5), a connecting arm (6) is provided between the bucket (5) and the fixed arm (2), a cleaning device is provided at the bottom of the fixed beam (4), the cleaning device comprises a support block (7), a cleaning plate (8) is provided on the support block (7), a cleaning block (9) is provided on one side of the cleaning plate (8), a cleaning motor (10) is provided in the cleaning plate (8), a cleaning screw (11) is provided on the motor shaft of the cleaning motor (10), and the cleaning screw (11) is provided on the cleaning plate (8). A moving block (12) is provided on the cleaning screw (11), a moving slide bar (13) is provided between the moving block (12) and the cleaning block (9), a rotating shaft (14) and a rotating sleeve (15) are provided between the fixed beam (4) and the bucket (5) and between the connecting arm (6) and the bucket (5), a lubrication device is provided between the rotating shaft (14) and the rotating sleeve (15), the lubrication device comprises a lubrication pipe (16), a lubrication cavity (17) is provided in the rotating shaft (14), the lubrication pipe (16) extends into the lubrication cavity (17), and a rotating ball (18) is provided on the rotating shaft (14).

2. The dredging grab bucket structure for a river dredging ship according to claim 1 is characterized by: A steering shaft (19) is provided between the cleaning plate (8) and the support block (7), and a steering motor (20) is provided on one side of the support block (7).

3. The dredging grab bucket structure for a river dredging ship according to claim 1 is characterized by: The cleaning block (9) is provided with a protruding nail (21).

4. The dredging grab bucket structure for a river dredging ship according to claim 1 is characterized by: The bucket (5) is provided with teeth (22).

5. The dredging grab bucket structure for a river dredging ship according to claim 1 is characterized by: A lubrication hole (23) is provided at one end of the lubrication tube (16), a piston rod (24) is slidably provided on the lubrication tube (16), a handle (25) is provided at one end of the piston rod (24), and a piston plate (26) is provided at the other end, and a piston head (27) is provided on the piston plate (26) that cooperates with the lubrication hole (23).

6. The dredging grab bucket structure for a river dredging ship according to claim 5 is characterized by: Sliding blocks (28) are provided on both sides of the piston plate (26), and sliding grooves (29) cooperating with the sliding blocks (28) are provided in the lubrication pipe (16).

7. The dredging grab bucket structure for a river dredging vessel according to claim 6 is characterized by: A lubrication spring (30) is provided between the piston plate (26) and the inner wall of the lubrication pipe (16).

8. The dredging grab bucket structure for a river dredging vessel according to claim 7 is characterized by: The lubrication pipe (16) is provided with an air outlet hole (31), and a plug (32) is threadedly connected to the air outlet hole (31).

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