Underwater pulley fixing device of desilting ship

Abstract

The utility model relates to the technical field of pulley fixing, and discloses a desilting ship underwater pulley fixing device which comprises a main body assembly and a fixing frame, a grab bucket is arranged below the fixing frame, a moving shaft is arranged above the grab bucket, and a pulley block is arranged on the moving shaft. And the mounting assembly is located on the pulley block and comprises a mounting piece, the mounting piece comprises a first arc-shaped plate, and a second arc-shaped plate is rotationally connected to the first arc-shaped plate. The grab bucket has the beneficial effects that the pulley block is arranged on the mounting sleeve similar to a hoop, and the mounting sleeve is mounted on the moving shaft of the grab bucket by using the stud, so that the replacement process of the pulley block is simplified, the grab bucket is closed to grab sludge, the connection strength of the mounting sleeve and the moving shaft can be triggered, and when the load of the grab bucket is increased, the pulley block can be replaced conveniently. Friction force between the mounting sleeve and the moving shaft is increased, connection is firmer, and it is ensured that the pulley block can still be stably mounted on the moving shaft after the grab bucket loads.

Description

TECHNICAL FIELD

[0001] The utility model relates to pulley fixing technical field, especially a kind of underwater pulley fixing device of dredging ship. BACKGROUND

[0002] During the operation of dredging ship, grab is the important component for underwater silt grabbing and cleaning, and pulley block on grab plays a key role in controlling the lifting and opening and closing action of grab.Pulley block of grab on dredging ship is usually connected with the moving shaft of grab by welding.This connection mode can ensure the connection strength between pulley block and moving shaft to some extent, but in the long-term use, pulley block is prone to wear and damage due to frequent friction, impact and corrosion of underwater harsh environment and other factors.Once pulley block needs to be replaced due to failure, pulley block and moving shaft become a whole due to the fixed mode of welding, so that disassembly process becomes very difficult. SUMMARY

[0003] In view of the above and / or existing problems in underwater pulley fixing device of dredging ship, the utility model is proposed.

[0004] Therefore, the problem to be solved by the utility model is that pulley block of grab is fixed by welding, and disassembly is inconvenient.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a kind of underwater pulley fixing device of dredging ship, it includes, main component, including fixed frame, the fixed frame below is provided with grab, the grab upper is provided with moving shaft, the moving shaft is provided with pulley block;

[0006] Installation component is located on the pulley block, and it includes mounting piece, the mounting piece includes first arc-shaped plate, the first arc-shaped plate is rotatably connected with second arc-shaped plate, the first arc-shaped plate is provided with first through slot, the second arc-shaped plate is provided with second through slot, double-end bolt is inserted into the first through slot and the second through slot, nut is sleeved on the double-end bolt;

[0007] The installation component further includes reinforcing member, located on the side of the moving shaft, including moving block, the moving block one side is fixed with push plate, the push plate one side is fixed with connecting plate, the connecting plate one side is fixed with contact plate.

[0008] As a preferred scheme of the underwater pulley fixing device of dredging ship described in the utility model, wherein: the moving shaft both sides are fixed with disc, the grab is fixed with fixed plate, the fixed plate is rotatably connected with the disc.

[0009] As a preferred scheme of the underwater sheave fixing device of the dredging ship, the first arc-shaped plate is provided with a first stress groove, and the second arc-shaped plate is provided with a second stress groove.

[0010] As a preferred scheme of the underwater sheave fixing device of the dredging ship, the moving block is provided with an inclined groove, and the inclined groove is in contact with the first stress groove and the second stress groove.

[0011] As a preferred scheme of the underwater sheave fixing device of the dredging ship, the moving shaft is fixed with a first auxiliary block, and the contact plate is inserted into the first auxiliary block.

[0012] As a preferred scheme of the underwater sheave fixing device of the dredging ship, the moving shaft is fixed with a second auxiliary block, the second auxiliary block is provided with a moving groove, and the push plate slides in the moving groove.

[0013] As a preferred scheme of the underwater sheave fixing device of the dredging ship, the push plate is fixed with a spring on one side, and the other end of the spring is fixed with the inner wall of the moving groove.

[0014] As a preferred scheme of the underwater sheave fixing device of the dredging ship, one end of the contact plate is provided with a round corner, and the contact plate is in contact with the fixed plate.

[0015] As a preferred scheme of the underwater sheave fixing device of the dredging ship, the moving shaft is fixed with a guide column, the first arc-shaped plate is provided with a guide groove, and the guide column is clamped with the guide groove.

[0016] As a preferred scheme of the underwater sheave fixing device of the dredging ship, the main body assembly further comprises a steel wire rope, the steel wire rope is wound on the sheave set, a supporting rod is rotationally connected to the fixed frame, and the other end of the supporting rod is rotationally connected with the grab bucket.

[0017] The underwater sheave fixing device of the dredging ship has the beneficial effects that the sheave set is arranged on the mounting sleeve similar to the clamp, the mounting sleeve is mounted on the moving shaft of the grab bucket by using the stud bolt, the replacement process of the sheave set is simplified, the grab bucket is closed to grab the sludge, the connection strength of the mounting sleeve and the moving shaft is triggered, the friction between the mounting sleeve and the moving shaft is increased when the load of the grab bucket is increased, the connection is more firm, and it is ensured that the sheave set can still be stably mounted on the moving shaft after the load of the grab bucket is increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the concept of the present application.

[0019] Figure 1 It is an overall structural view of the underwater sheave fixing device of the dredging ship.

[0020] Figure 2 It is a partial enlarged view of position A in the underwater sheave fixing device of the dredging ship. Figure 1

[0021] Figure 3 It is a side view of the grab bucket of the underwater sheave fixing device of the dredging ship.

[0022] Figure 4 It is a partial enlarged view of position B in the underwater sheave fixing device of the dredging ship. Figure 3

[0023] Figure 5 It is a structure view of the moving shaft of the underwater sheave fixing device of the dredging ship.

[0024] Figure 6 It is a sectional structure view of the moving shaft of the underwater sheave fixing device of the dredging ship. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways that are not consistent with the details described herein without departing from the spirit and scope of the present application, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0027] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0028] Embodiment 1

[0029] Reference Figures 1-6 ​​For the first embodiment of the utility model, the embodiment provides a dredging ship underwater pulley fixing device, the dredging ship underwater pulley fixing device includes main body assembly 100, including fixed frame 101, the fixed frame 101 is the base plate of entire grabbing device, the fixed frame 101 below is provided with grab bucket 102, and the number of grab bucket 102 is two, the lifting of fixed frame 101 can drive grab bucket 102 synchronous lifting, grab bucket 102 above is provided with moving shaft 103, moving shaft 103 is provided with pulley block 104, pulley block 104 can carry out additional lifting, to make moving shaft 103 lift, when moving shaft 103 moves downward relative to fixed frame 101, grab bucket 102 will open, and when fixed frame 101 moves upward, grab bucket 102 will close, this is prior art, and the present scheme does not make superfluous repetition, and the working principle can be clearly known by the person skilled in the art.

[0030] Installation assembly 200, located pulley block 104, including mounting 201, mounting 201 is used for installing pulley block 104 to moving shaft 103, so that the lifting of pulley block 104 can drive moving shaft 103 lifting, to control the opening and closure of grab bucket 102.

[0031] Mounting 201 includes first arc-shaped plate 201a, pulley block 104 bottom and first arc-shaped plate 201a are fixed, first arc-shaped plate 201a is pivotally connected with second arc-shaped plate 201b, first arc-shaped plate 201a and second arc-shaped plate 201b are commonly inserted with cylindrical shaft 201f in the middle, and the relative rotation of the two can occur around cylindrical shaft 201f, and the inner side of first arc-shaped plate 201a and second arc-shaped plate 201b is provided with rubber pad 201g, for enhancing the friction between the two and moving shaft 103.

[0032] First arc-shaped plate 201a is provided with first through slot 201a-1, second arc-shaped plate 201b is provided with second through slot 201b-1, first through slot 201a-1 and second through slot 201b-1 are inserted with stud bolt 201c, stud bolt 201c is sleeved with nut 201d, the number of first through slot 201a-1 and second through slot 201b-1 is multiple, the number of stud bolt 201c is consistent with the two and corresponds, and two nuts 201d are threadedly connected on each stud bolt 201c.

[0033] In the installation of the pulley block 104, the first arc-shaped plate 201a is sleeved outside the moving shaft 103, then the second arc-shaped plate 201b is rotated around the cylindrical shaft 201f, so that the second arc-shaped plate 201b is tightly attached to the moving shaft 103, at this time, the 201a-1 and the second through slot 201b-1 are in the coaxial position, the stud bolt 201c is inserted into the two through slots, and the relative position of the first arc-shaped plate 201a and the second arc-shaped plate 201b is fixed by using the nut 201d from both sides of the stud bolt 201c, and the moving shaft 103 is simultaneously pressed by the first arc-shaped plate 201a and the second arc-shaped plate 201b, so that the moving shaft 103 is connected with the first arc-shaped plate 201a and the second arc-shaped plate 201b.

[0034] The installation assembly 200 further comprises a reinforcing piece 202, the number of the reinforcing piece 202 is two, and the reinforcing piece 202 is located on both sides of the moving shaft 103; through the arrangement of the reinforcing piece 202, when the grab bucket 102 is closed to grab the sand, the first arc-shaped plate 201a and the second arc-shaped plate 201b can be close to each other and simultaneously press the moving shaft 103, so that the friction is enhanced and the connection is more firm.

[0035] The reinforcing piece 202 comprises a moving block 202a, one side of the moving block 202a is fixedly connected with a push plate 202b, one side of the push plate 202b is fixedly connected with a connecting plate 202c, one side of the connecting plate 202c is fixedly connected with a contact plate 202d, the contact plate 202d is used for driving the moving block 202a to move, and the movement of the moving block 202a can make the first arc-shaped plate 201a and the second arc-shaped plate 201b close to each other; the connecting plate 202c is in L-shaped, and is used for connecting the contact plate 202d and the push plate 202b, so that the movement of the contact plate 202d can drive the push plate 202b and the moving block 202a to move.

[0036] Embodiment 2

[0037] With reference to Figures 1-6 For the second embodiment of the utility model, the embodiment is based on the previous embodiment.

[0038] Specifically, the moving shaft 103 is fixedly connected with a disc 105 on both sides, the grab bucket 102 is fixedly connected with a fixed plate 102a, the fixed plate 102a is rotationally connected with the disc 105, the number of the fixed plate 102a is four, and one fixed plate 102a is fixedly connected with the grab bucket 102 on each side; the fixed plate 102a of one grab bucket 102 is closer to the moving shaft 103 than the fixed plate 102a of the other grab bucket 102.

[0039] When the moving shaft 103 moves up and down, the disc 105 can be driven to move synchronously, so that the fixed plate 102a moves synchronously, and then the position fixedly connected with the fixed plate 102a on the grab bucket 102 moves synchronously.

[0040] Specifically, the first arc-shaped plate 201a is provided with a first stress groove 201a-2, and the second arc-shaped plate 201b is provided with a second stress groove 201b-2, and the first stress groove 201a-2 and the second stress groove 201b-2 are inclined.

[0041] Specifically, the moving block 202a is provided with an inclined groove 202a-1, and the number of the inclined groove 202a-1 is two, and the two inclined grooves 202a-1 can be in contact with the first stress groove 201a-2 and the second stress groove 201b-2 respectively.

[0042] When the moving block 202a moves towards the first arc-shaped plate 201a, one of the inclined grooves 202a-1 will be in contact with and pressed by the first stress groove 201a-2, so that the first arc-shaped plate 201a moves towards the moving shaft 103, and the other inclined groove 202a-1 will be in contact with and pressed by the second stress groove 201b-2, so that the second arc-shaped plate 201b moves towards the moving shaft 103, thereby enhancing the friction between the two and the moving shaft 103, and ensuring the stability of the installation of the pulley block 104.

[0043] Specifically, the moving shaft 103 is fixed with a first auxiliary block 202e, and the contact plate 202d is inserted into the first auxiliary block 202e.

[0044] The first auxiliary block 202e is provided with a groove corresponding to the contact plate 202d, the contact plate 202d is inserted into the groove and can slide in the groove, the first auxiliary block 202e is used for providing stable support for the contact plate 202d and ensuring the stability of the movement of the contact plate 202d, and since the connecting plate 202c, the push plate 202b and the moving block 202a move synchronously with the contact plate 202d, the stable movement of the three can also be ensured.

[0045] Specifically, the moving shaft 103 is fixed with a second auxiliary block 202f, the second auxiliary block 202f is provided with a moving groove 202f-1, and the push plate 202b slides in the moving groove 202f-1.

[0046] The second auxiliary block 202f is used for ensuring the stability of the movement of the push plate 202b, and cooperates with the first auxiliary block 202e to ensure the stability of the movement of the moving block 202a, the push plate 202b, the connecting plate 202c and the contact plate 202d.

[0047] Embodiment 3

[0048] Reference Figures 1-6 For the third embodiment of the utility model, the embodiment is based on the previous two embodiments.

[0049] Specifically, the push plate 202b is fixed with a spring 202g on one side, and the other end of the spring 202g is fixed with the inner wall of the moving groove 202f-1. The spring 202g is used to provide a continuous pushing force for the push plate 202b, and is used for the reset of the push plate 202b. The movement of the push plate 202b can simultaneously drive the movement of the connecting plate 202c, the moving block 202a and the contact plate 202d, and the spring 202g is also used for the reset of the three.

[0050] Specifically, the contact plate 202d is provided with a rounded corner at one end, and the contact plate 202d can contact the fixed plate 102a.

[0051] When the grab bucket 102 is in an open state, the fixed plate 102a of one of the grab buckets 102 is closer to the moving shaft 103, and the arc end face of the contact plate 202d protrudes from the end face of the fixed plate 102a. When the grab bucket 102 is closed under the action of the pulley block 104, the arc end face of the contact plate 202d will contact the fixed plate 102a during the process, and the fixed plate 102a will extrude the arc end face of the contact plate 202d, so that the contact plate 202d moves away from the fixed plate 102a. The movement of the contact plate 202d drives the connecting plate 202c and the push plate 202b to move synchronously. At this time, the spring 202g will be stretched, and the moving block 202a will move towards the first arc-shaped plate 201a.

[0052] Specifically, the moving shaft 103 is fixed with a guide column 201e, and the first arc-shaped plate 201a is provided with a guide groove 201a-3. The guide column 201e can be clamped with the guide groove 201a-3, and the number of the two is two. Through the cooperation of the two, when the pulley block 104 is installed, the guide column 201e is aligned with the guide groove 201a-3, so as to ensure that the pulley block 104 is installed at a specified position of the moving shaft 103, and at the same time, the relative sliding between the first arc-shaped plate 201a and the moving shaft 103 is prevented.

[0053] Specifically, the main body assembly 100 further comprises a steel wire rope 106, and the steel wire rope 106 is wound on the pulley block 104. The fixed frame 101 is rotatably connected with a supporting rod 107, and the other end of the supporting rod 107 is rotatably connected with the grab bucket 102.

[0054] One end of the steel wire rope 106 is fixed on a winding drum. When the winding drum winds or unwinds the steel wire rope 106, the steel wire rope is driven by the pulley block 104 to make the pulley block 104 ascend or descend, so as to change the distance between the fixed frame 101 and the moving shaft 103. When the distance changes, the angle between the supporting rod 107 and the fixed frame 101 and the grab bucket 102 will change due to the unchanged length of the supporting rod 107, so as to open or close the grab bucket 102. This is the prior art, and the working principle is not described in detail, and the person skilled in the art can clearly understand the working principle.

[0055] In use, when installing the pulley set 104, the guide column 201e is aligned with the guide groove 201a-3, the first arc-shaped plate 201a is sleeved outside the moving shaft 103, then the second arc-shaped plate 201b is rotated around the cylindrical shaft 201f, so that the second arc-shaped plate 201b is tightly attached to the moving shaft 103, at this time, the 201a-1 and the second through groove 201b-1 are coaxial, the stud bolt 201c is inserted into the two through grooves, and the relative position of the first arc-shaped plate 201a and the second arc-shaped plate 201b is fixed by using the nut 201d from both sides of the stud bolt 201c, and the moving shaft 103 is simultaneously pressed by the first arc-shaped plate 201a and the second arc-shaped plate 201b, so that the moving shaft 103 is connected with the first arc-shaped plate 201a and the second arc-shaped plate 201b.

[0056] When the grab bucket 102 is closed under the action of the pulley set 104 rising, in this process, the contact plate 202d round corner will be in contact with the fixed plate 102a, and the fixed plate 102a will press the contact plate 202d arc end face, so that the contact plate 202d moves away from the fixed plate 102a, the movement of the contact plate 202d will drive the connecting plate 202c and the push plate 202b to move synchronously, at this time, the spring 202g will be stretched, and then the moving block 202a moves towards the first arc-shaped plate 201a, one of the inclined grooves 202a-1 will be in contact with and pressed by the first stress groove 201a-2, so that the first arc-shaped plate 201a moves close to the moving shaft 103, and the other inclined groove 202a-1 will be in contact with and pressed by the second stress groove 201b-2, so that the second arc-shaped plate 201b moves close to the moving shaft 103, and then the friction between the two and the moving shaft 103 is enhanced, ensuring the stability of the installation of the pulley set 104.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. An underwater sheave fixture for a dredge vessel, characterized by: Including, The main body assembly (100) includes a fixing frame (101), a grab bucket (102) is arranged below the fixing frame (101), a moving shaft (103) is arranged above the grab bucket (102), and a pulley block (104) is arranged on the moving shaft (103); The mounting assembly (200) is located on the pulley block (104) and includes a mounting piece (201), the mounting piece (201) includes a first arc-shaped plate (201a), the first arc-shaped plate (201a) is rotationally connected with a second arc-shaped plate (201b), a first through slot (201a-1) is formed in the first arc-shaped plate (201a), a second through slot (201b-1) is formed in the second arc-shaped plate (201b), a stud bolt (201c) is inserted into the first through slot (201a-1) and the second through slot (201b-1), and a nut (201d) is sleeved on the stud bolt (201c); The mounting assembly (200) further includes a reinforcing piece (202) located on one side of the moving shaft (103), the reinforcing piece (202) includes a moving block (202a), a push plate (202b) is fixed on one side of the moving block (202a), a connecting plate (202c) is fixed on one side of the push plate (202b), and a contact plate (202d) is fixed on one side of the connecting plate (202c).

2. The dredge underwater sheave fixture of claim 1, wherein: Discs (105) are fixed on both sides of the moving shaft (103), and a fixed plate (102a) is fixed on the grab bucket (102) and rotationally connected with the discs (105).

3. The dredge vessel underwater sheave fixture of claim 2, wherein: First stress grooves (201a-2) are formed in the first arc-shaped plate (201a), and second stress grooves (201b-2) are formed in the second arc-shaped plate (201b).

4. The dredge vessel underwater sheave fixture of claim 3, wherein: An inclined slot (202a-1) is formed in the moving block (202a), and the inclined slot (202a-1) can be in contact with the first stress grooves (201a-2) and the second stress grooves (201b-2).

5. A dredging vessel underwater sheave fixation device according to claim 3 or 4, characterized in that: A first auxiliary block (202e) is fixed on the moving shaft (103), and the contact plate (202d) is inserted into the first auxiliary block (202e).

6. The dredge vessel underwater sheave fixture of claim 5, wherein: A second auxiliary block (202f) is fixed on the moving shaft (103), the second auxiliary block (202f) is provided with a moving groove (202f-1), and the push plate (202b) slides in the moving groove (202f-1).

7. The dredge vessel underwater sheave fixture of claim 6, wherein: A spring (202g) is fixed on one side of the push plate (202b), and the other end of the spring (202g) is fixed to the inner wall of the moving groove (202f-1).

8. A dredging vessel underwater sheave fixation device according to claim 6 or 7, characterized in that: A rounded corner is arranged at one end of the contact plate (202d), and the contact plate (202d) can be in contact with the fixed plate (102a).

9. The dredge vessel underwater sheave fixture of claim 8, wherein: A guide column (201e) is fixed on the moving shaft (103), a guide groove (201a-3) is formed in the first arc-shaped plate (201a), and the guide column (201e) can be clamped in the guide groove (201a-3).

10. The dredge vessel underwater sheave fixture of claim 9, wherein: The main body assembly (100) further comprises a steel wire rope (106) wound on the pulley set (104), and a support rod (107) rotatably connected to the fixed frame (101), and the other end of the support rod (107) is rotatably connected to the grab bucket (102).

Images