Reinforced detachable raking device
By designing a detachable rake leveler, the detachable rake leveler segments are assembled and adjusted, the problem that the existing rake leveler cannot adapt to different construction conditions is solved, and better underwater shallow construction results and convenient facility allocation are achieved.
Patent Information
- Application Number
- CN202411883137.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-03-14
AI Technical Summary
The existing rake flatters are fixed structures and cannot be adapted according to different underwater shallow construction conditions and the tow capacity of the construction ship, resulting in unsatisfactory underwater shallow construction results.
A reinforced detachable rake flatter is designed, consisting of multiple exactly the same rake flatter segments, and the adjacent segments are detachable and connected. By adjusting the number of segments, it can adapt to different construction conditions to adjust the overall length of the rake flatter.
It realizes flexible adaptation of rakes, improves the effect of underwater shallow construction, simplifies the separation, storage and transfer of facilities, and facilitates the allocation and use of different construction sites.
Smart Images
Figure CN119615995A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of dredging construction equipment, and in particular relates to a reinforced detachable rake leveler. Background Art
[0002] The rake leveler is an important facility used in dredging projects. In the dredging construction of ports and waterways, dragging and sweeping the bottom of the water with the rake leveler is an effective way to improve the quality of dredging projects, shorten the time of sweeping, reduce the excavation of ultra-deep waste, and reduce project costs. The effect is more obvious for medium-density sand, dense sand, mud-sand, and clay soil. By dragging the rake leveler to carry out shallow sweeping construction, it can effectively improve the flatness of the bottom of the water, reduce the height difference of the ridge, turn the strip-shaped shallow ridge into individual shallow points, peel off the volcanic rock cover, and create conditions for the final removal of these shallow points, greatly improving the efficiency of shallow sweeping and shortening the time spent in the shallow sweeping stage of the project.
[0003] Different construction scenarios require different sizes of rakes. Different underwater shallow sweeping construction conditions and different towing capacities of different construction vessels require rake facilities of different lengths. Existing rakes are usually fixed structures, that is, the length is fixed. This results in the inability to adapt well to different underwater shallow sweeping construction conditions and different types of construction vessels during construction, which ultimately leads to unsatisfactory underwater shallow sweeping construction results. In summary, it is necessary to develop and design a reinforced detachable rake to solve the aforementioned technical problems. Summary of the invention
[0004] The purpose of the present invention is to provide a reinforced detachable rake, which improves the structural strength and can adjust and set the overall length according to construction conditions.
[0005] The technical solution adopted by the present invention is: a reinforced detachable rake leveler, which is composed of a plurality of completely identical rake leveler segments spliced in sequence, and adjacent rake leveler segments are detachably connected; the rake leveler segments include a front tube beam and a rear tube beam, an arc-shaped scraper is provided between the front tube beam and the rear tube beam, a front side plate is installed between the front tube beam and the end of the arc-shaped scraper, a cross-shaped connecting frame is installed between the front tube beam and the middle of the arc-shaped scraper, a rear side plate is installed between the rear tube beam and the end of the arc-shaped scraper, and a cutting assembly with adjustable height is installed between the middle parts of the two front side plates, the cutting assembly includes two cutting side plates installed and fixed on the inner sides of the two front side plates, a lower cutting plate with a cutting edge is installed between the bottoms of the two cutting side plates, and an upper cutting plate with a cutting edge is installed between the tops of the two cutting side plates; it also includes a suspension assembly and a traction assembly.
[0006] Preferably, the ends of the front tube beam and the rear tube beam are both sealed, and a plurality of front water inlets are provided on the top wall of the front tube beam and a plurality of front water outlets are provided on the bottom wall, and a plurality of rear water inlets are provided on the top wall of the rear tube beam and a plurality of front water outlets are provided on the bottom wall.
[0007] Preferably, a ski board is installed at the front bottom of the two front side panels, and the front part of the ski board is tilted upward and has an arc shape.
[0008] Preferably, multiple groups of longitudinally arranged mounting holes are provided in the middle of the two front side panels, and adjustment holes are provided on the two cutting side panels of the cutting assembly. The cutting assembly is fixedly connected to the front side panels by bolts located in the adjustment holes and one group of mounting holes.
[0009] Preferably, a plurality of front connecting holes are provided at the front of the front side plate, a plurality of rear connecting holes are provided at the middle of the rear side plate, and the front side plates of two adjacent rake segments are fixedly connected by bolts located in the front connecting holes, and the rear side plates are fixedly connected by bolts located in the rear connecting holes.
[0010] Preferably, the suspension assembly includes a front lifting ear installed and fixed on the top of the front tubular beam and a rear lifting ear installed on the top of the rear tubular beam. The front lifting ear and the rear lifting ear are connected to a suspension chain by a shackle. The upper ends of the suspension chains converge at a ring. The suspension chain also includes a suspension steel cable with a lifting ring at the lower end. The lifting ring and the ring are connected by a shackle.
[0011] Preferably, the traction assembly includes a traction ring installed on the front edge of the front side plate, and also includes a traction chain and a traction steel cable. The rear end of the traction chain and the traction ring, and the rear end of the traction steel cable and the traction chain are connected by shackles.
[0012] Preferably, a reinforcing connecting plate is provided between the front lifting eye and the front tubular beam, and a reinforcing connecting plate is provided between the rear lifting eye and the rear tubular beam; a reinforcing inner rib plate is provided between the rear side panel and the rear tubular beam, and a reinforcing inner rib plate is provided between the front side panel and the ski board; and a reinforcing side panel is provided at the front edge of the front side panel.
[0013] The advantages and positive effects of the present invention are:
[0014] The present invention provides a reinforced detachable rake leveler. Compared with the existing fixed rake leveler, the reinforced detachable rake leveler of the present invention is composed of a plurality of identical rake leveler segments and the adjacent rake leveler segments are detachably connected. Thus, before construction, the rake leveler segments at the outer end can be conveniently and quickly disassembled (or other rake leveler segments can be added at the outer end) according to the conditions of the on-site construction (underwater shallow sweeping construction conditions and the towing capacity of the construction vessel). The overall length of the rake leveler can be adjusted and set to better adapt to the construction conditions, so as to achieve a better underwater shallow sweeping and leveling construction effect. In addition, the detachable structure allows the rake leveler facilities to be disassembled, stored and transported, which is convenient for allocation and use between different construction sites.
[0015] The reinforced detachable rake has a compact overall structure, and is reinforced at key positions by using reinforced connecting plates, reinforced inner rib plates and reinforced side plates, so that the overall structure has high strength and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the present invention.
[0017] In the figure:
[0018] 1. Suspension cable; 2. Lifting ring; 3. Shackle; 4. Suspension chain; 5. Rear lifting eye; 6. Strengthening connecting plate; 7. Rear water inlet; 8. Rear pipe beam; 9. Rear water outlet; 10. Rear side plate; 11. Rear connecting hole; 12. Front side plate; 13. Curved scraper; 14. Cross-shaped connecting frame; 15. Lower cutting plate; 16. Cutting side plate; 17. Upper cutting plate; 18. Strengthening inner rib plate; 19. Sled board; 20. Strengthening side plate; 21. Front lifting eye; 22. Front water inlet; 23. Front pipe beam; 24. Front water outlet; 25. Traction chain; 26. Traction cable; 27. Front connecting hole. DETAILED DESCRIPTION
[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail.
[0020] See also Figure 1 The reinforced detachable rake leveler of the present invention is composed of a plurality of identical rake leveler segments spliced in sequence, and adjacent rake leveler segments are detachably connected. Before on-site construction, according to the known underwater shoveling construction conditions and the towing capacity of the ship, a suitable number of rake leveler segments are selected for assembly, or the length is reduced by disassembling the rake leveler segments at the end of the rake leveler, and the length is increased by adding other rake leveler segments at the end, so that the overall length of the rake leveler can be quickly and conveniently adjusted according to the needs of the on-site working conditions, so as to achieve a better underwater shoveling and leveling construction effect.
[0021] The rake segment includes a front tube beam 23 and a rear tube beam 8, between which an arc-shaped scraper 13 is provided, and the arc-shaped scraper 13 is closer to the rear tube beam 8, a front side plate 12 is installed between the front tube beam 23 and the end of the arc-shaped scraper 13, a cross-shaped connecting frame 14 is installed between the front tube beam 23 and the middle of the arc-shaped scraper 13, and a rear side plate 10 is installed between the rear tube beam 8 and the end of the arc-shaped scraper 13.
[0022] Specifically, the front upper portion of the front side plate 12 is welded and fixed to the end of the front tube beam 23, and the rear edge is welded and fixed to the end edge of the arc scraper 13, the front end of the cross-shaped connecting frame 14 is welded and fixed to the rear wall of the front tube beam 23, the rear end of the cross-shaped connecting frame 14 is welded and fixed to the upper portion of the arc scraper 13, the front edge of the rear side plate 10 is welded and fixed to the end edge of the arc scraper 13, and the rear edge is welded and fixed to the end of the front tube beam 23. Therefore, the main part of the rake constitutes an integral frame structure with compact structure and high structural strength.
[0023] In this embodiment, the front pipe beam 23 and the rear pipe beam 8 are both selected as straight steel pipes. Since the ends of the steel pipes are welded and fixed to the front side plate 12 and the rear side plate 10, the ends are sealed. A plurality of front water inlets 22 are provided on the top wall of the front pipe beam 23, and a plurality of front water outlets 24 are provided on the bottom wall. A plurality of rear water inlets 7 are provided on the top wall of the rear pipe beam 8, and a plurality of front water outlets 9 are provided on the bottom wall. The purpose of setting the water inlets and water outlets is that when the rake leveler is lowered to the bottom of the water, water will enter the inner cavity of the front pipe beam 23 and the rear pipe beam 8, so as to avoid the buoyancy generated by the hollow front pipe beam 23 and the rear pipe beam 8 from having an adverse effect on the rake leveling and shallow sweeping construction process. When the rake leveler is lifted above the water surface, the water in the steel pipe will leak out by itself.
[0024] A cutting assembly with adjustable height is installed between the middle parts of the two front side plates 12. The cutting assembly includes two cutting side plates 16 fixedly installed on the inner sides of the two front side plates 12, a lower cutting plate 15 with a cutting edge is installed between the bottoms of the two cutting side plates 16, and an upper cutting plate 17 with a cutting edge is installed between the tops of the two cutting side plates 16. The function of the cutting assembly is that when the rake is used for shallow sweeping construction on the mud surface at the bottom of the water, the lower cutting plate 15 and the upper cutting plate 17 have a peak-cutting effect on the mud surface at the bottom of the water. The function of the arc scraper 13 is that when the rake is used for shallow sweeping construction on the mud surface at the bottom of the water, the mud and sand generated by the front peak cutting accumulates in front of the arc scraper 13 and is pushed forward by the arc scraper 13, producing a valley-filling effect on the moving path.
[0025] In this embodiment, multiple groups of mounting holes arranged longitudinally are provided in the middle of the two front side panels 12, and adjustment holes are provided on the two cutting side panels 16 of the cutting assembly. The cutting assembly is fixedly connected to the front side panels 12 by bolts located in the adjustment holes and one of the groups of mounting holes. In this way, the height of the cutting assembly can be adjusted according to construction requirements. When the cutting assembly is adjusted downward, the peak cutting effect is stronger, and vice versa, when the cutting assembly is adjusted upward, the peak cutting effect is weakened.
[0026] In this embodiment, a sled 19 is welded and installed at the front bottom of the two front side plates 12, and the front part of the sled 19 is tilted upward and has an arc shape. As shown in the figure, when the rake is dragged and moved on the mud surface of the bottom of the water, the front part of the rake is in contact with the mud surface using the left and right sleds 19. Since the front part of the sled 19 is tilted upward and has an arc shape, the rake can always stay above the mud surface of the bottom of the water when it is dragged forward, and will not gradually sink. The sled 19 can be made of wear-resistant alloy plates to improve the wear resistance.
[0027] In order to improve the overall structural strength, a reinforcing inner rib 18 is provided between the rear side panel 10 and the rear tube beam 23 , and a reinforcing inner rib 18 is provided between the front side panel 12 and the ski board 19 .
[0028] In this embodiment, a plurality of front connection holes 27 are provided at the front of the front side plate 12, and a plurality of rear connection holes 11 are provided at the middle of the rear side plate 10. The front side plates 12 of two adjacent rake leveler segments are fixedly connected by bolts located in the front connection holes 27, and the rear side plates 10 are fixedly connected by bolts located in the rear connection holes 11. In this way, the adjacent rake leveler segments can be quickly and conveniently disassembled and assembled to realize the assembly and length adjustment setting of the rake leveler.
[0029] It also includes a suspension component and a towing component, wherein the suspension component is used for ship-borne facilities such as ship-borne crane equipment to lower and lift the rake and leveler. When not in construction, the rake and leveler is lifted above the water surface as a whole and fixed to the stern of the ship. When performing shallow sweeping construction, the rake and leveler is lowered to the bottom mud surface of the water, and the towing component is used for the construction ship to tow and move the rake and leveler.
[0030] In this embodiment, the suspension assembly includes a front lifting ear 21 installed and fixed on the top of the front tubular beam 23 and a rear lifting ear 5 installed on the top of the rear tubular beam 8. A suspension chain 4 is connected to the front lifting ear 21 and the rear lifting ear 5 using a shackle 3. The upper ends of the suspension chains 4 converge at a ring. The suspension chain 4 also includes a suspension steel cable 1 with a lifting eye 2 at the lower end. The lifting eye 2 is connected to the ring using a shackle 3. The suspension steel cable 1 is connected to the ship-borne cable-retracting and -releasing equipment.
[0031] In this embodiment, the traction assembly includes a traction ring installed on the front edge of the front side plate 12, and also includes a traction chain 25 and a traction cable 26. The rear end of the traction chain 25 and the traction ring, and the rear end of the traction cable 26 and the traction chain 25 are connected by a shackle 3, and the front end of the traction cable 26 is connected to the construction vessel.
[0032] In order to improve the overall structural strength, a reinforcing connecting plate 6 is provided between the front lifting ear 21 and the front tube beam 23, a reinforcing connecting plate 6 is provided between the rear lifting ear 5 and the rear tube beam 8, and a reinforcing side plate 20 is provided at the front edge of the front side plate 12. The reinforcing side plate 20 is welded and installed on the inner side of the front edge of the front side plate 12, and the traction ring is connected to the reinforced position, so that the front edge of the front side plate 12 can withstand the wear of the traction ring for a longer time, thereby improving the service life.
[0033] Directions:
[0034] Connect multiple rake segments in sequence with bolts to form a rake facility of a certain length; select the front lifting lug 21 and the rear lifting lug 5 at the left and right positions on the formed rake facility and connect them with the lifting lugs at the two positions with a suspension assembly, and similarly select the left and right positions to install the traction assembly to achieve left and right balanced traction;
[0035] The rake facility is suspended at the stern of the construction vessel. Before construction, the rake segment at the end is dismantled or an additional rake segment is added to the end to adjust the overall length of the rake facility according to specific construction requirements. When the overall length of the rake changes, the position of the suspension connection and the position of the towing connection can be adaptively adjusted.
Claims
1. A reinforced detachable rake, characterized by: The raker segment is composed of a plurality of identical raker segments which are sequentially spliced, and the adjacent raker segments are detachably connected; the raker segment comprises a front tube beam (23) and a rear tube beam (8), an arc-shaped scraper (13) is arranged between the front tube beam (23) and the rear tube beam (8), a front side plate (12) is installed between the front tube beam (23) and the ends of the arc-shaped scraper (13), a cross-shaped connecting frame (14) is installed between the front tube beam (23) and the middle of the arc-shaped scraper (13), and a front side plate (12) is installed between the front tube beam (23) and the middle of the arc-shaped scraper (13). A rear side plate (10) is installed between the end of the arc-shaped scraper (13); a cutting assembly with adjustable height is installed between the middle parts of the two front side plates (12); the cutting assembly includes two cutting side plates (16) installed and fixed on the inner sides of the two front side plates (12); a lower cutting plate (15) with a cutting edge is installed between the bottoms of the two cutting side plates (16); and an upper cutting plate (17) with a cutting edge is installed between the tops of the two cutting side plates (16); and also includes a suspension assembly and a traction assembly.
2. The reinforced detachable rake as claimed in claim 1, characterized in that: The ends of the tube beam (23) and the rear tube beam (8) are both sealed; a plurality of front water inlets (22) are provided on the top wall of the front tube beam (23) and a plurality of front water outlets (24) are provided on the bottom wall; a plurality of rear water inlets (7) are provided on the top wall of the rear tube beam (8) and a plurality of front water outlets (9) are provided on the bottom wall.
3. The reinforced detachable rake as claimed in claim 2, characterized in that: A snowboard (19) is installed at the front bottom of the two front side plates (12), and the front part of the snowboard (19) is tilted upward and is in an arc shape.
4. The reinforced detachable rake as claimed in claim 3, characterized in that: A plurality of groups of mounting holes arranged longitudinally are provided in the middle of the two front side panels (12), and adjustment holes are provided on the two cutting side panels (16) of the cutting assembly. The cutting assembly is fixedly connected to the front side panels (12) by bolts located in the adjustment holes and one of the groups of mounting holes.
5. The reinforced detachable rake as claimed in claim 4, characterized in that: A plurality of front connection holes (27) are provided at the front of the front side plate (12), and a plurality of rear connection holes (11) are provided at the middle of the rear side plate (10). The front side plates (12) of two adjacent rake leveler segments are fixedly connected by bolts located in the front connection holes (27), and the rear side plates (10) are fixedly connected by bolts located in the rear connection holes (11).
6. The reinforced detachable rake as claimed in claim 5, characterized in that: The suspension assembly comprises a front lifting lug (21) fixedly mounted on the top of a front tubular beam (23) and a rear lifting lug (5) mounted on the top of a rear tubular beam (8), a suspension chain (4) being connected to the front lifting lug (21) and the rear lifting lug (5) by means of a shackle (3), the upper ends of the suspension chains (4) converging at a sleeve, and a suspension steel cable (1) having a lifting ring (2) at the lower end, the lifting ring (2) being connected to the sleeve by means of a shackle (3).
7. The reinforced detachable rake as claimed in claim 6, characterized in that: The traction assembly comprises a traction ring installed on the front edge of the front side plate (12), a traction chain (25) and a traction steel cable (26), wherein the rear end of the traction chain (25) and the traction ring, and the rear end of the traction steel cable (26) and the traction chain (25) are connected by shackles.
8. The reinforced detachable rake as claimed in claim 7, characterized in that: A reinforcing connecting plate (6) is provided between the front lifting eye (21) and the front tube beam (23), and a reinforcing connecting plate (6) is provided between the rear lifting eye (5) and the rear tube beam (8); a reinforcing inner rib plate (18) is provided between the rear side plate (10) and the rear tube beam (8), and a reinforcing inner rib plate (18) is provided between the front side plate (12) and the ski board (19); and a reinforcing side plate (20) is provided at the front edge of the front side plate (12).