Reinforced detachable raking device
By designing a detachable leveling tool, which consists of multiple leveling tool segments and adopts a reinforced connection structure, the problem of existing leveling tools being unable to adapt to different construction conditions is solved, thereby improving construction effect and strengthening structural strength, and facilitating adjustment and transportation.
Patent Information
- Application Number
- CN202423148623.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing leveling tools are usually fixed structures, which cannot be effectively adapted to different underwater shoveling conditions and types of construction vessels, resulting in unsatisfactory construction results.
Design a reinforced and detachable leveling tool, which consists of multiple identical leveling tool segments. Adjacent segments are detachably connected. The overall length can be adjusted to adapt to construction conditions and ship capacity. Reinforced connecting plates and internal stiffening plates are used to improve structural strength.
It enables rapid adjustment of the length of the leveling tool according to construction needs, improves the underwater shoveling effect, enhances structural strength, and facilitates disassembly, storage, and transportation.
Smart Images
Figure CN223593446U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of dredging construction equipment, especially relates to a reinforced detachable harrow. BACKGROUND
[0002] The harrow is an important facility applied to dredging engineering, and in dredging construction of ports and waterways, shallow sweeping by the harrow is an effective way to improve dredging engineering quality, shorten the shallow sweeping time, dig less super-deep waste area, and reduce engineering cost, especially for medium dense sand, dense sand, mud and sand, and cohesive soil. The shallow sweeping construction by the towed harrow can effectively improve the flatness of the bottom of the water, reduce the height difference of the ridge and groove, change the strip-shaped shallow ridge into individual shallow points, strip off the volcanic rock covering layer, and create conditions for the final removal of the shallow points, greatly improving the efficiency of the shallow sweeping and shortening the time consumption of the engineering in the shallow sweeping stage.
[0003] According to different construction scenes, the size requirements of the harrow are different. Different underwater shallow sweeping construction conditions and different towing capacities of construction ships require different lengths of harrow facilities. The existing harrow is usually of a fixed structure, that is, the length is fixed, which leads to poor adaptation to different underwater shallow sweeping construction conditions and different types of construction ships during construction, and finally leads to unsatisfactory underwater shallow sweeping construction effect. In summary, a reinforced detachable harrow needs to be developed and designed to solve the foregoing technical problems. SUMMARY
[0004] The utility model aims at providing a kind of reinforced detachable harrow, improve structural strength, can be adjusted and set according to construction condition to overall length.
[0005] The utility model adopts the technical scheme: a kind of reinforced detachable harrow, by multiple identical harrow segments sequentially spliced, adjacent harrow segments are detachably connected;The harrow segment includes front pipe beam and rear pipe beam, and arc-shaped scraper is provided between the front pipe beam and the rear pipe beam, front side plate is installed between the end of the front pipe beam and the arc-shaped scraper, cross type connecting frame is installed between the middle of the front pipe beam and the arc-shaped scraper, rear side plate is installed between the end of the rear pipe beam and the arc-shaped scraper, adjustable height cutting assembly is installed between the middle of two front side plates, cutting assembly includes two cutting side plates fixedly installed in the inner side of two front side plates, lower cutting plate with cutting edge is installed between the bottom of two cutting side plates, upper cutting plate with cutting edge is installed between the top of two cutting side plates;It also includes suspension assembly and traction assembly.
[0006] Preferably, the ends of both the front and rear pipe beams are sealed. The front pipe beam has multiple front water inlets on its top wall and multiple front water outlets on its bottom wall. The rear pipe beam has multiple rear water inlets on its top wall and multiple rear water outlets on its bottom wall.
[0007] Preferably, sleds are installed at the bottom front of the two front side panels, with the front of the sleds curving upwards and forming an arc shape.
[0008] Preferably, multiple sets of mounting holes are arranged longitudinally in the middle of the two front side plates, and adjustment holes are provided on the two cutting side plates of the cutting assembly. The cutting assembly is fixedly connected to the front side plates by bolts located in the adjustment holes and one of the sets of mounting holes.
[0009] Preferably, a plurality of front connecting holes are provided at the front of the front side plate and a plurality of rear connecting holes are provided at the middle of the rear side plate. The front side plates of two adjacent rake sections 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 lug fixed to the top of the front tube beam and a rear lug fixed to the top of the rear tube beam. Suspension chains are connected to both the front and rear lugs using shackles. The upper ends of the suspension chains converge at a collar. The assembly also includes a suspension cable with a collar at the lower end. The collar and collar are connected using shackles.
[0011] Preferably, the traction assembly includes a traction ring mounted on the front edge of the front side plate, a traction chain, and a traction cable, wherein the rear end of the traction chain is connected to the traction ring, and the rear end of the traction cable is connected to the traction chain by a shackle.
[0012] Preferably, a reinforcing connecting plate is provided between the front lifting lug and the front tube beam, and a reinforcing connecting plate is provided between the rear lifting lug and the rear tube beam; a reinforcing inner stiffening plate is provided between the rear side plate and the rear tube beam, and a reinforcing inner stiffening plate is provided between the front side plate and the sled plate; a reinforcing side plate is provided at the front edge of the front side plate.
[0013] The advantages and positive effects of this utility model are:
[0014] The utility model provides a kind of reinforced detachable harrow, compared with existing fixed harrow, the reinforced detachable harrow of the utility model is constituted by multiple identical harrow segments and the structure form of detachable connection between adjacent harrow segments, so that before construction, according to the conditions of on-site construction (underwater scouring construction conditions and the towing capacity of construction vessel), the harrow segment located at outer end can be conveniently and quickly detached (or other harrow segment is additionally arranged at outer end), the overall length of harrow is adjusted and set to better adapt to construction conditions, to achieve better underwater scouring harrow construction effect.In addition, the detachable structure enables harrow facilities to be disassembled and stored and transported, facilitating allocation and use between different construction sites.
[0015] The reinforced detachable harrow has compact overall structure, and is reinforced by reinforcing connecting plates, reinforcing inner rib plates and reinforcing side plates at key positions, so that the overall structural strength is high, and service life is long. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the structure schematic diagram of the utility model.
[0017] In the drawing:
[0018] 1, suspension steel cable; 2, lifting ring; 3, shackle; 4, suspension chain; 5, rear lifting lug; 6, reinforcing connecting plate; 7, rear upper water inlet; 8, rear pipe beam; 9, rear lower water inlet; 10, rear side plate; 11, rear connecting hole; 12, front side plate; 13, arc-shaped scraper; 14, cross-shaped connecting frame; 15, lower cutting plate; 16, cutting side plate; 17, upper cutting plate; 18, reinforcing inner rib plate; 19, ski plate; 20, reinforcing side plate; 21, front lifting lug; 22, front upper water inlet; 23, front pipe beam; 24, front lower water inlet; 25, towing chain; 26, towing steel cable; 27, front connecting hole. DETAILED DESCRIPTION
[0019] To further understand the invention content, characteristics and effects of the utility model, the following examples are used for detailed description.
[0020] Please see Figure 1 The reinforced detachable harrow of the utility model is sequentially spliced by multiple identical harrow segments, and adjacent harrow segments are detachably connected.Before on-site construction, according to the mastered underwater scouring construction conditions and the towing capacity of vessel, a suitable number of harrow segments are assembled, or the length is reduced by detaching harrow segment at the end of harrow, or the length is increased by additionally arranging other harrow segment at the end, so that the overall length of harrow can be quickly and conveniently adjusted and set according to the needs of on-site conditions, to achieve better underwater scouring harrow construction effect.
[0021] The harrow section comprises a front pipe beam 23 and a rear pipe beam 8, between which an arc-shaped scraper 13 is arranged, which is closer to the rear pipe beam 8, a front side plate 12 is arranged between the front pipe beam 23 and the end of the arc-shaped scraper 13, a cross-shaped connecting frame 14 is arranged between the front pipe beam 23 and the middle of the arc-shaped scraper 13, and a rear side plate 10 is arranged between the rear pipe beam 8 and the end of the arc-shaped scraper 13.
[0022] Specifically, the front upper part of the front side plate 12 is welded and fixed with the end of the front pipe beam 23, and the rear edge is welded and fixed with the end edge of the arc-shaped scraper 13, the front end of the cross-shaped connecting frame 14 is welded and fixed with the rear wall of the front pipe beam 23, the rear end of the cross-shaped connecting frame 14 is welded and fixed with the upper part of the arc-shaped scraper 13, and the front edge of the rear side plate 10 is welded and fixed with the end edge of the arc-shaped scraper 13, and the rear edge is welded and fixed with the end of the front pipe beam 23. Thus, the main part of the harrow forms an overall frame structure, which is compact and has high structural strength.
[0023] In the embodiment, the front pipe beam 23 and the rear pipe beam 8 are both straight steel pipes, and the ends of the steel pipes are welded and fixed with the front side plate 12 and the rear side plate 10, so that the ends are sealed. A plurality of front upper water inlets 22 are arranged on the top wall of the front pipe beam 23, and a plurality of front lower water inlets 24 are arranged on the bottom wall, a plurality of rear upper water inlets 7 are arranged on the top wall of the rear pipe beam 8, and a plurality of rear lower water inlets 9 are arranged on the bottom wall. The purpose of arranging the water inlets is that, during the process of lowering the harrow to the bottom of the water, water will enter the inner cavities of the front pipe beam 23 and the rear pipe beam 8, so as to avoid the adverse effect of the buoyancy generated by the hollow front pipe beam 23 and the rear pipe beam 8 on the shallow sweeping construction process, and when the harrow is lifted above the water surface, the water in the steel pipes will be discharged automatically.
[0024] An adjustable height cutting assembly is arranged between the middle parts of the two front side plates 12, which comprises two cutting side plates 16 fixedly arranged on the inner sides of the two front side plates 12, a lower cutting plate 15 with a blade is arranged between the bottom parts of the two cutting side plates 16, and an upper cutting plate 17 with a blade is arranged between the top parts of the two cutting side plates 16. The purpose of arranging the cutting assembly is that, when the harrow is used for shallow sweeping construction on the mud surface of 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 of the bottom of the water. The arc-shaped scraper 13 has the effect that, when the harrow is used for shallow sweeping construction on the mud surface of the bottom of the water, the mud and sand generated by the peak cutting in front is accumulated in the front part of the arc-shaped scraper 13 and is pushed forward by the arc-shaped scraper 13, so as to have a valley filling effect on the moving path.
[0025] In the embodiment, a plurality of groups of mounting holes are arranged longitudinally in the middle of the two front side plates 12, and adjusting holes are arranged on the two cutting side plates 16 of the cutting assembly, and the cutting assembly is fixedly connected to the front side plates 12 by bolts arranged in the adjusting holes and one group of the mounting holes. In this way, the height of the cutting assembly can be adjusted according to the construction requirements. When the cutting assembly is adjusted downward, the peak shaving effect is stronger, and vice versa.
[0026] In the embodiment, skid plates 19 are welded and arranged at the front bottom of the two front side plates 12, and the front part of the skid plate 19 is upwardly curved and arc-shaped. As shown in the figure, when the harrow is dragged to move on the water bottom mud surface, the front part of the harrow is in contact with the mud surface by the two skid plates 19. Since the front part of the skid plate 19 is upwardly curved and arc-shaped, the harrow can always be kept above the water bottom mud surface when it is dragged to move forward, and will not gradually sink. The skid plate 19 can be made of wear-resistant alloy plate to improve the wear resistance.
[0027] In order to improve the overall structural strength, reinforcing inner rib plates 18 are arranged between the rear side plates 10 and the rear pipe beams 23, and between the front side plates 12 and the skid plates 19.
[0028] In the embodiment, a plurality of front connecting holes 27 are arranged at the front part of the front side plates 12, and a plurality of rear connecting holes 11 are arranged in the middle of the rear side plates 10. The front side plates 12 of adjacent two harrow segments are fixedly connected by bolts arranged in the front connecting holes 27, and the rear side plates 10 are fixedly connected by bolts arranged in the rear connecting holes 11. In this way, the adjacent harrow segments can be quickly and conveniently disassembled to realize the assembly and length adjustment of the harrow.
[0029] The harrow further comprises a suspension assembly and a traction assembly. The suspension assembly is used for lowering and lifting the harrow by a ship-borne facility such as a ship-borne crane device. In a non-construction state, the harrow is lifted above the water surface and fixed to the stern of the ship. In a shallow dredging construction, the harrow is lowered to the water bottom mud surface. The traction assembly is used for moving the harrow by a construction ship.
[0030] In the embodiment, the suspension assembly comprises a front lifting lug 21 fixedly arranged at the top of the front pipe beam 23 and a rear lifting lug 5 arranged at the top of the rear pipe beam 8. A suspension chain 4 is connected to the front lifting lug 21 and the rear lifting lug 5 by shackles 3. The upper end of the suspension chain 4 converges to a thimble. The suspension assembly further comprises a suspension steel cable 1 with a lifting ring 2 at the lower end. The lifting ring 2 is connected to the thimble by a shackle 3, and the suspension steel cable 1 is connected to a ship-borne cable winding and unwinding device.
[0031] In this embodiment, the traction assembly includes a traction ring mounted on the front edge of the front side plate 12, and further includes a traction chain 25 and a traction cable 26, the rear end of the traction chain 25 and the traction ring are connected by a shackle 3, 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 arranged between the front lifting lug 21 and the front pipe beam 23, a reinforcing connecting plate 6 is arranged between the rear lifting lug 5 and the rear pipe beam 8, and a reinforcing side plate 20 is arranged on the front edge of the front side plate 12, which is welded and mounted on the inside of the front edge of the front side plate 12, and the traction ring is connected to this reinforcing position, so that the front edge of the front side plate 12 can withstand the wear and tear of the traction ring for a longer period of time, improving the service life.
[0033] Usage:
[0034] A plurality of harrow segments are sequentially connected by bolts to form a harrow facility of a certain length; the front lifting lug 21 and the rear lifting lug 5 at two positions on the left and right of the formed harrow facility are connected to the two positions of the lifting lug by using a suspension assembly, and the traction assembly is installed at two positions on the left and right to achieve balanced traction on the left and right;
[0035] The harrow facility is suspended at the tail of the construction vessel, and before construction, the overall length of the harrow facility is adjusted and set by disassembling the harrow segments at the ends or adding harrow segments at the ends according to specific construction requirements, and when the overall length of the harrow changes, the positions of the suspension connection and the traction connection can be adjusted adaptively.
Claims
1. A reinforced detachable harrow leveler characterized by: The harrow section is composed of a plurality of identical harrow segments connected in sequence, and the adjacent harrow segments are detachably connected; the harrow section comprises a front pipe beam (23) and a rear pipe beam (8), an arc-shaped scraper (13) is arranged between the front pipe beam (23) and the rear pipe beam (8), a front side plate (12) is arranged between the front pipe beam (23) and the end of the arc-shaped scraper (13), a cross-shaped connecting frame (14) is arranged between the front pipe beam (23) and the middle of the arc-shaped scraper (13), a rear side plate (10) is arranged between the rear pipe beam (8) and the end of the arc-shaped scraper (13), an adjustable height cutting assembly is arranged between the middle of the two front side plates (12), the cutting assembly comprises two cutting side plates (16) fixedly arranged on the inner sides of the two front side plates (12), a lower cutting plate (15) with a cutting edge is arranged between the bottoms of the two cutting side plates (16), and an upper cutting plate (17) with a cutting edge is arranged between the tops of the two cutting side plates (16); the harrow section further comprises a suspension assembly and a traction assembly.
2. The reinforced detachable harrow leveler according to claim 1, characterized in that the front part The ends of the front pipe beam (23) and the rear pipe beam (8) are sealed, a plurality of front upper water inlets (22) are arranged on the top wall of the front pipe beam (23), a plurality of front lower water inlets (24) are arranged on the bottom wall of the front pipe beam (23), a plurality of rear upper water inlets (7) are arranged on the top wall of the rear pipe beam (8), and a plurality of rear lower water inlets (9) are arranged on the bottom wall of the rear pipe beam (8).
3. The reinforced detachable harrow leveler according to claim 2, wherein the reinforcing plate is formed in a shape of a plate having a plurality of holes. The front bottom of the two front side plates (12) is provided with a ski plate (19), the front of the ski plate (19) is upwardly curved and has an arc shape.
4. The reinforced detachable harrow leveler according to claim 3, wherein the reinforcing plate is formed in a shape of a plate having a plurality of holes. The middle of the two front side plates (12) is provided with a plurality of groups of longitudinally arranged mounting holes, the two cutting side plates (16) of the cutting assembly are provided with adjusting holes, and the cutting assembly is fixedly connected with the front side plates (12) by bolts arranged in the adjusting holes and one group of the mounting holes.
5. The reinforced detachable harrow leveler according to claim 4, wherein the reinforcing plate is formed in a shape of a plate having a plurality of holes. The front of the front side plate (12) is provided with a plurality of front connecting holes (27), the middle of the rear side plate (10) is provided with a plurality of rear connecting holes (11), the front side plates (12) of the adjacent two harrow segments are fixedly connected by bolts arranged in the front connecting holes (27), and the rear side plates (10) are fixedly connected by bolts arranged in the rear connecting holes (11).
6. The reinforced detachable harrow leveler according to claim 5, characterized in that: The suspension assembly comprises a front lifting lug (21) fixedly arranged on the top of the front pipe beam (23) and a rear lifting lug (5) arranged on the top of the rear pipe beam (8), the front lifting lug (21) and the rear lifting lug (5) are connected with a suspension chain (4) by shackles (3), the upper end of the suspension chain (4) converges to a thimble, and the suspension assembly further comprises a suspension steel cable (1) with a lifting ring (2) at the lower end, and the lifting ring (2) is connected with the thimble by a shackle (3).
7. The reinforced detachable harrow leveler according to claim 6, characterized in that: The traction assembly comprises a traction ring arranged on the front edge of the front side plate (12), and further comprises a traction chain (25) and a traction steel cable (26), and 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 harrow leveler of claim 7 wherein the reinforcing member is a plurality of reinforcing members. The front lifting lug (21) is provided with a reinforcing connecting plate (6) between the front tube beam (23), and the rear lifting lug (5) is provided with a reinforcing connecting plate (6) between the rear tube beam (8); the rear side plate (10) is provided with a reinforcing inner rib plate (18) between the rear tube beam (8), and the front side plate (12) is provided with a reinforcing inner rib plate (18) between the ski plate (19); the front edge of the front side plate (12) is provided with a reinforcing side plate (20).