CN220117330U

CN220117330U - Reamer structure

Info

Publication number: CN220117330U
Application number: CN202321598087.8U
Authority: CN
Inventors: 刘凯锋; 李晟; 尹家春; 彭光明; 陈旭; 杨琨
Original assignee: CCCC Shanghai Dredging Co Ltd.
Current assignee: CCCC Shanghai Dredging Co Ltd.
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-12-01
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a reamer structure which comprises a reamer ring, reamer arms and a reamer hub, wherein a plurality of reamer arms are uniformly distributed between the reamer ring and the reamer hub along the circumferential direction, a mud suction hole is formed in the reamer ring, a protection Dan Geshan is arranged in the mud suction hole, a first blade is arranged on the upper surface of a stone-proof grid, a second blade is arranged above the first blade, the second blade is connected with the reamer hub through a linkage structure, and the linkage structure controls the second blade to rotate and is matched with the second blade to cut broken stones. According to the utility model, the first blade and the second blade are arranged on the stone-proof grille, and the cutting action is formed by the mutual matching of the rotation of the second blade and the first blade, so that broken stones blocked on the outer side of the stone-proof grille can be cut and broken conveniently, the problem that the suction capacity of a mud pump is reduced due to excessive broken stones is solved, the second blade rotates under the driving of the reamer arm and the reamer hub, and the whole reamer is operated more conveniently without additionally arranging a driving structure.

Description

Reamer structure

Technical Field

The utility model relates to the technical field of cutter suction dredger accessories, in particular to a reamer structure.

Background

Along with the development of the dredging industry, the reamer power of the cutter suction dredger is continuously improved, and the dredging capacity is also improved. Along with the increase of the depth of excavation, more and more weak rocks and medium-strength rocks need to be excavated, and the phenomenon that a reamer suction opening, an underwater pump and a deck pump are blocked by stones is frequently encountered in the rock process, so that ship constructors are required to stop the dredging operation to treat the blocked stones, and the construction efficiency is seriously influenced.

At present, the conventional method is to weld a stone-proof ring in a reamer or add a protection Dan Geshan at a mud suction port, and the method has a certain effect, but can cause excessive rocks clamped on the stone-proof ring and a grid, thereby reducing the suction capacity of the mud pump.

Disclosure of Invention

(one) solving the technical problems

The utility model aims to provide a reamer structure, which solves the problems that the existing reamer structure provided in the background art is additionally provided with a stone-proof ring or a stone-proof grating is additionally arranged at a mud suction port, and the reamer structure has a certain stone-proof effect, but can cause excessive rocks clamped on the stone-proof ring and the grating, thereby reducing the suction capacity of a mud pump.

(II) technical scheme

The reamer structure comprises a reamer ring, reamer arms and a reamer hub, wherein a plurality of reamer arms are uniformly distributed between the reamer ring and the reamer hub along the circumferential direction, a mud suction hole is formed in the reamer ring, a protection Dan Geshan is arranged in the mud suction hole, a blade I is arranged on the upper surface of the stone-proof grille, a blade II is arranged above the blade I, the blade II is connected with the reamer hub through a linkage structure, and the linkage structure controls the rotation of the blade II and cuts broken stone together with the blade;

the linkage structure comprises a rotating rod, a central gear, a linkage gear and a gear ring, wherein one end of the rotating rod extending into the reamer hub is coaxially fixed with the central gear, the gear ring is fixed on the inner wall of the reamer hub, and the gear ring and the central gear are in meshed transmission through the linkage gear.

In a further embodiment, the bottom end of the rotating rod is uniformly distributed with a plurality of supporting rods along the circumferential direction, the supporting rods are rotationally connected with the rotating rod, and one end, far away from the rotating rod, of the supporting rods is fixed with the reamer ring.

In a further embodiment, the support rods are of an arc-shaped structure, and a plurality of cutter teeth are uniformly distributed on the surface of each support rod.

In a further embodiment, the support bars are spaced evenly apart from the reamer arms.

In a further embodiment, a mounting plate is fixed to the periphery of the sun gear, and one end of the mounting plate, which is far away from the sun gear, is rotatably connected with the linkage gear.

In a further embodiment, the first blade adopts a cross-shaped structure, and the first blade is equally divided into four sections of fan-shaped stone-preventing grids.

In a further embodiment, the opposite surfaces of the first blade and the second blade are provided with a plurality of cutting teeth in an equidistant manner, and the cutting teeth of the first blade and the second blade are distributed in a staggered manner.

(III) beneficial effects

According to the utility model, the first blade and the second blade are arranged on the stone-proof grille, and the cutting action is formed by the mutual matching of the rotation of the second blade and the first blade, so that broken stones blocked on the outer side of the stone-proof grille can be cut and broken conveniently, the problem that the suction capacity of a mud pump is reduced due to excessive broken stones is solved, the second blade rotates under the driving of the reamer arm and the reamer hub, and the whole reamer is operated more conveniently without additionally arranging a driving structure.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic elevational cross-sectional structure of the present utility model;

FIG. 3 is a schematic top view of a reamer ring according to the present utility model;

fig. 4 is a schematic top view cross-sectional structure of a reamer hub of the present utility model.

In the figure: 1. a reamer ring; 2. a cutter arm; 3. a reamer hub; 4. a mud suction hole; 5. a shield Dan Geshan; 6. a first blade; 7. a second blade; 8. a rotating rod; 9. a sun gear; 10. a linkage gear; 11. a gear ring; 12. a mounting plate; 13. a support rod; 14. cutter teeth; 15. cutting teeth.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is further described below with reference to examples.

As shown in fig. 1-2, a reamer structure comprises a reamer ring 1, a reamer arm 2 and a reamer hub 3 which are distributed from bottom to top, wherein the reamer ring 1 and the reamer hub 3 are of a round structure, the axes of the reamer ring 1 and the reamer hub 3 are mutually overlapped, the reamer arm 2 is arranged between the reamer ring 1 and the reamer hub 3 and is distributed with a plurality of reamer hubs along the circumferential direction, a mud suction hole 4 is arranged in the reamer ring 1, a stone-preventing grid 5 is arranged in the mud suction hole 4, the mud suction efficiency of the stone-preventing grid 5 is influenced when the stone-preventing grid 5 intercepts more broken stone, therefore, a first blade 6 is arranged on the upper surface of the stone-preventing grid 5, a second blade 7 is arranged above the first blade 6, the second blade 7 is connected with the reamer hub 3 through a linkage structure, the linkage structure controls the rotation of the second blade 7, so that the broken stone can be cut into smaller particles when the second blade 7 rotates, and the broken stone can be cut into smaller particles so as to be conveniently sucked into a mud discharge pipe.

As shown in fig. 2-3, in order to effectively enhance the cutting effect on broken stone, the first blade 6 is provided with a cross structure, the first blade 6 is equally divided into four sections of fan-shaped grids 5, the second blade 7 is provided with a straight-line structure, the lower surface of the first blade 6 and the upper surface of the second blade 7 are respectively and equidistantly provided with a plurality of cutting teeth 15, and gaps are reserved between adjacent cutting teeth 15, so that each cutting tooth 15 protrudes, the breaking capacity of the blade is enhanced, and meanwhile, when the first blade 6 and the second blade 7 are aligned up and down, the cutting teeth 15 of the first blade 6 and the second blade 7 are mutually staggered, and the breaking effect of the first blade 6 and the second blade 7 is further enhanced.

As shown in fig. 2 and 4, for conveniently driving the second blade 7 to rotate, a linkage structure is provided, which is composed of a rotating rod 8, a central gear 9, a linkage gear 10 and a gear ring 11, wherein the axis of the rotating rod 8 and the axis of the reamer hub 3 are overlapped, one end of the rotating rod 8 extending into the reamer hub 3 is coaxially fixed with the central gear 9, the annular gear ring 11 is fixed on the inner wall of the reamer hub 3, the gear ring 11 and the central gear 9 are in meshed transmission through the linkage gear 10, a mounting plate 12 is mounted at the lower end of the linkage gear 10, one end of the mounting plate 12 is fixed on the periphery of a shaft lever of the central gear 9, and the linkage gear 10 is in rotary connection with the mounting plate 12, so that when the reamer arm 2 and the reamer hub 3 rotate, the gear ring 11 drives the linkage gear 10 to rotate, the linkage gear 10 drives the central gear 9 to rotate, and the central gear 9 drives the rotating rod 8 to rotate, so that the second blade 7 rotates.

1-2, in order to improve the stability of linkage structure, set up the bottom of bull stick 8 along circumference evenly distributed has a plurality of bracing pieces 13, be connected for rotating between this bracing piece 13 and the bull stick 8, bracing piece 13 can support the lower extreme of bull stick 8, and bracing piece 13 keeps away from the one end of bull stick 8 and is fixed mutually with reamer ring 1, and then make bull stick 8 more firm when rotatory, bracing piece 13 and reamer arm 2 interval evenly distributed simultaneously, make its support more balanced, bracing piece 13 adopts the arc structure, and the surface evenly distributed of every bracing piece 13 has a plurality of reamer teeth 14, be favorable to making bracing piece 13 follow when the rotation of reamer arm 2 through the reamer tooth 14, can have certain rubble ability.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a reamer structure, includes reamer ring (1), reamer arm (2) and reamer hub (3), its characterized in that: a plurality of reamer arms (2) are uniformly distributed between the reamer ring (1) and the reamer hub (3) along the circumferential direction, a mud suction hole (4) is formed in the reamer ring (1), a protection Dan Geshan (5) is arranged in the mud suction hole (4), a first blade (6) is arranged on the upper surface of the protection Dan Geshan (5), a second blade (7) is arranged above the first blade (6), the second blade (7) is connected with the reamer hub (3) through a linkage structure, and the linkage structure controls the second blade (7) to rotate and is matched with the first blade (6) to cut broken stones;

the linkage structure comprises a rotating rod (8), a central gear (9), a linkage gear (10) and a gear ring (11), wherein one end of the rotating rod (8) extending into the reamer hub (3) is coaxially fixed with the central gear (9), the gear ring (11) is fixed on the inner wall of the reamer hub (3), and the gear ring (11) and the central gear (9) are in meshed transmission through the linkage gear (10).

2. A reamer construction according to claim 1, wherein: the bottom of bull stick (8) is along circumference evenly distributed having a plurality of bracing pieces (13), is the rotation between this bracing piece (13) and bull stick (8) and is connected, and the one end that bull stick (8) were kept away from to bracing piece (13) is fixed mutually with reamer ring (1).

3. A reamer construction according to claim 2, wherein: the supporting rods (13) are of arc-shaped structures, and a plurality of cutter teeth (14) are uniformly distributed on the surface of each supporting rod (13).

4. A reamer construction according to claim 2, wherein: the supporting rods (13) and the reamer arms (2) are uniformly distributed at intervals.

5. A reamer construction according to claim 1, wherein: the periphery of the sun gear (9) is fixed with a mounting plate (12), and one end, far away from the sun gear (9), of the mounting plate (12) is rotationally connected with the linkage gear (10).

6. A reamer construction according to claim 1, wherein: the first blade (6) adopts a cross structure, and the first blade (6) is equally divided into four sections of fan-shaped stone-proof grids (5).

7. A reamer construction according to claim 1, wherein: the opposite surfaces of the first blade (6) and the second blade (7) are provided with a plurality of cutting teeth (15) at equal intervals, and the cutting teeth (15) of the first blade (6) and the second blade (7) are distributed in a staggered manner.