Dredging tooth

Abstract

A dredging tooth is used for solving the technical problems that a tooth head and a tooth holder of a dredging tooth in the prior art mentioned in the background technology are connected through a plug pin, the old tooth can be taken out only when the plug pin is damaged, the difficulty of replacing the tooth on site is increased, and the plug pin can be thoroughly damaged and cannot be reutilized, and comprises the tooth head and the tooth holder, a cavity is formed in the tooth head, the end of the tooth holder penetrates into the cavity in a sliding mode and abuts against the inner wall of the cavity, a connecting assembly used for connecting the tooth head and the tooth holder is arranged at the connecting position of the tooth head and the tooth holder, and a plurality of grooves are formed in the inner wall of the cavity along the axis of the tooth head. A plurality of protruding edges matched with the grooves are formed in the outer wall of the end of the tooth holder, the protruding edges can be arranged in the grooves in a sliding and penetrating mode respectively, and fixing assemblies used for abutting against and fixing the tooth head are arranged on the protruding edges.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging, and particularly relates to a dredging tooth. Background Art

[0002] Dredging is to use artificial, hydraulic and mechanical means to excavate underwater substances such as sediment and transport them to another place. In this process, dredging changes the environmental conditions of the excavated area to make it more in line with people's expectations for environmental improvement, which is the function of dredging. In existing dredging methods, there is a kind of cutter suction dredging method. The main excavation part of the cutter suction dredging equipment is the cutter head, and the cutter head is composed of a cutter arm, a cutter hub, a large circle and a tooth system.

[0003] For the dredging teeth in the prior art, as disclosed in the utility model patent document with the authorization announcement number of "CN208088400U" and the patent name of "Flying wing type plow teeth for dredging drag head", a kind of dredging tooth is disclosed. The flying wing type plow teeth for dredging drag head is composed of a tooth base and a tooth. The tooth base is used for installation at the position of the drag head. The tooth is installed on the tooth base and is connected to the tooth base through a tooth pin. The tooth wings are arranged on both sides of the lower end of the tooth, and the included angle between them is 70 - 80°. The tooth wings are in an extended structure backward. Pressure flushing holes are provided at the upper end of the tooth wings and are connected to the pressure flushing pipe of the drag head.

[0004] In the above patent document, the connection method between the tooth head and the tooth base is pin connection. This kind of connection requires destroying the pin to remove the old tooth, which increases the difficulty of replacing teeth on site. Moreover, the pin will be completely destroyed and cannot be reused. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and propose a dredging tooth to solve the technical problem that in the dredging tooth of the prior art in the background art, the connection method between the tooth head and the tooth base is pin connection. This kind of connection requires destroying the pin to remove the old tooth, which increases the difficulty of replacing teeth on site. Moreover, the pin will be completely destroyed and cannot be reused.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions:

[0007] A dredging tooth includes a tooth head and a tooth base. A cavity is formed inside the tooth head. The end of the tooth base slidably penetrates into the cavity and abuts against the inner wall of the cavity. A connection component for connecting the tooth head and the tooth base is provided at the connection part of the tooth head and the tooth base. A plurality of grooves are formed on the inner wall of the cavity along the axis of the tooth head. A plurality of convex ribs matching the plurality of grooves are formed on the outer wall of the end of the tooth base. The plurality of convex ribs can respectively slidably penetrate into the plurality of grooves. A fixing component for abutting against and fixing the tooth head is provided on the plurality of convex ribs.

[0008] Working Principle:

[0009] First, the operator aligns the cavity on the tooth head with the tooth seat, and then aligns several convex ribs with the corresponding several grooves one by one. Then, the operator slides the tooth head onto the tooth seat. When sliding the tooth head onto the tooth seat, the fixing component can fix the tooth head. After that, the operator can connect the tooth head and the tooth seat through the connecting component to prevent the tooth head from disengaging from the tooth seat.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] First, a connecting component is provided. The connecting component can connect the tooth head and the tooth seat, prevent the tooth head from disengaging from the tooth seat during dredging, and facilitate the disassembly of the tooth head from the tooth seat through the connecting component, which is convenient for replacing the tooth head on the tooth seat.

[0012] Second, a fixing component is provided. The fixing component can fix the tooth head, further strengthen the connection relationship between the tooth head and the tooth seat, prevent the tooth head from disengaging from the tooth seat, and when the tooth head slides out of the tooth seat, the fixing component also disengages from the tooth head, which is convenient for the operator to disassemble the tooth head from the tooth seat. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0014] Figure 2 is Figure 1 an enlarged cross-sectional structural diagram of part A in

[0015] Figure 3 a cross-sectional structural diagram of the head and the tooth head;

[0016] Figure 4 is Figure 3 an enlarged cross-sectional structural diagram of part B in

[0017] Figure 5 a schematic structural diagram before the pusher block and the abutting block start to be assembled;

[0018] Figure 6 is a schematic structural diagram after the pusher block and the abutting block are assembled.

[0019] Description of the reference numerals: tooth head 1, tooth seat 2, cavity 3, groove 4, convex rib 5, tooth root 6, receiving groove 7, connecting hole 8, head 9, base 10, connecting platform 11, through groove 12, anti-rotation step 13, abutting table surface 14, connecting bolt 15, elastic washer 16, elastic block 17, nut 18, first through groove 19, through block 20, second through groove 21, pusher block 22, abutting block 23, third through groove 24, fourth through groove 25, abutting groove 26, first inclined surface 27, second inclined surface 28, third inclined surface 29, fourth inclined surface 30. Detailed Embodiments

[0020] The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Embodiment:

[0022] As Figure 1 and Figure 2 shown, a dredging tooth includes a tooth head 1. A tooth root 6 is provided at the end of the tooth head 1 close to the tooth seat 2. An accommodation groove 7 for placing a connection assembly is provided on the tooth root 6. The accommodation groove 7 can place a connection bolt 15, an elastic washer 16 and an elastic block 17, and a connection hole 8 for cooperating with the connection assembly. The connection hole 8 facilitates the connection bolt 15 to slide through and extend into the through groove 12.

[0023] As Figure 1 and Figure 2 shown, the tooth seat 2 includes a head 9 extending into the cavity 3, a base 10 cooperating with the cutter arm, and a connection platform 11 for installing the connection assembly. A nut structure is provided in the connection platform 11. The nut structure includes a through groove 12, the through groove 12 can place a nut 18, an anti-rotation step 13 and an abutting table surface 14. The anti-rotation step 13 can prevent the nut 18 from rotating. The nut 18 is an internal hexagonal nut 18. The nut 18 is in close contact with the abutting table surface 14 and presses the elastic washer 16 and the elastic block 17.

[0024] As Figure 1 and Figure 2 shown, a cavity 3 is formed inside the tooth head 1. The end of the tooth seat 2 slides through and abuts against the inner wall of the cavity 3. A connection assembly for connecting the tooth head 1 and the tooth seat 2 is provided at the connection between the tooth head 1 and the tooth seat 2. The connection assembly includes a connection bolt 15, an elastic washer 16, an elastic block 17 and a nut 18. The connection bolt 15 slides through the connection hole 8 and extends into the through groove 12. The elastic washer 16 is sleeved on the outer wall of the connection bolt 15. The elastic block 17 is sleeved on the outer wall of the connection bolt 15. Both the elastic washer 16 and the elastic block 17 are placed in the accommodation groove 7. The nut 18 is placed in the through groove 12 and the nut 18 is threadedly connected to the connection bolt 15. The circumferential side wall of the nut 18 abuts against the anti-rotation step 13. One end face of the nut 18 abuts against the abutting table surface 14. The nut 18 is placed into the connection platform 11 through the through groove 12 and the nut 18 is clamped into the anti-rotation step 13. Then, the elastic washer 16 and the elastic block 17 are placed into the accommodation groove 7. After that, the connection bolt 15 passes through the elastic washer 16 and the elastic block 17 in sequence and slides through the connection hole 8 to be threadedly connected to the nut 18.

[0025] As Figure 1 and Figure 2As shown, a first through slot 19 penetrating through the receiving slot 7 is formed in the tooth root 6. A penetrating block 20 is slidably disposed in the first through slot 19. A second through slot 21 is formed in the head 9. The penetrating block 20 slidably passes through the first through slot 19 and the second through slot 21. After the elastic block 17 for connecting the bolt 15 is tightened, it pushes the penetrating block 20 to penetrate into the second through slot 21. Before the connecting bolt 15 is threadedly connected to the nut 18, the operator places the penetrating block 20 into the second through slot 21 through the first through slot 19. When the connecting nut 18 rotates, the elastic block 17 will push the penetrating block 20 to penetrate into the second through slot 21, thereby further improving the connection relationship between the tooth head 1 and the tooth seat 2.

[0026] As Figure 3 and Figure 4 shown, a plurality of grooves 4 are formed on the inner wall of the cavity 3 along the axis of the tooth head 1. A plurality of convex ribs 5 matching the plurality of grooves 4 are formed on the outer wall of the end of the tooth seat 2. The plurality of convex ribs 5 can be respectively slidably disposed in the plurality of grooves 4. A fixing component for abutting and fixing the tooth head 1 is provided on the plurality of convex ribs 5. The fixing component includes a pushing block 22 and two abutting blocks 23. The pushing block 22 is fixedly disposed in the groove 4. A third through slot 24 is formed in the convex rib 5. The pushing block 22 slidably passes through the third through slot 24. A fourth through slot 25 penetrating through the third through slot 24 is formed in the convex rib 5. The two abutting blocks 23 are slidably disposed in the fourth through slot 25. Abutting slots 26 are formed on the inner walls of both sides of the groove 4. The two abutting blocks 23 are respectively slidably disposed in the two corresponding abutting slots 26 and abut against the inner walls of the abutting slots 26 under the pushing of the pushing block 22. When the convex rib 5 slides into the groove 4, the pushing block 22 slides into the third through slot 24 and the pushing block 22 will push the two abutting blocks 23 to move into the two corresponding abutting slots 26. When the tooth head 1 is disassembled from the tooth seat 2, the inner wall of the groove 4 pushes the two abutting blocks 23 to move closer to each other, thereby further improving the connection relationship between the tooth head 1 and the tooth seat 2 and facilitating the disassembly and installation of the tooth head 1 and the tooth seat 2.

[0027] As Figure 3 and Figure 4 and Figure 5 and Figure 6As shown in the figure, two first inclined surfaces 27 are provided near the ends of the two abutting blocks 23 of the pushing block 22. Two second inclined surfaces 28 are provided near the ends of the two abutting blocks 23 close to the pushing block 22, and the two inclined surfaces are respectively in contact with the two first inclined surfaces 27. The second inclined surface 28 can be pushed by the first inclined surface 27, so as to facilitate the pushing block 22 to push the two abutting blocks 23. Third inclined surfaces 29 are provided on the opposite sides of the two abutting blocks 23, and the third inclined surfaces 29 are parallel to the second inclined surfaces 28. Fourth inclined surfaces 30 are provided in the two abutting grooves 26, and the two fourth inclined surfaces 30 are respectively in contact with the two third inclined surfaces 29. When the tooth head 1 is disassembled from the tooth seat 2, the fourth inclined surface 30 will push the third inclined surface 29, and then the two abutting blocks 23 can move closer to each other, facilitating the disassembly of the tooth head 1 from the tooth seat 2.

[0028] Working principle:

[0029] When the tooth head 1 is installed on the tooth seat 2, first, the operator aligns the cavity 3 on the tooth head 1 with the head 9 of the tooth seat 2. Then, the operator aligns several convex ribs 5 with the corresponding several grooves 4 one by one. Then, the tooth head 1 is slid onto the tooth seat 2. When the tooth head 1 is slid onto the tooth seat 2, the pushing block 22 in the groove 4 can push the two abutting blocks 23, so that the two abutting blocks 23 slide into the two corresponding abutting grooves 26 under the action of the pushing force. When the abutting block 23 completely slides into the abutting groove 26, the tooth head 1 is installed on the tooth seat 2. Then, the operator slides the penetrating block 20 through the first penetrating groove 19. Then, the elastic washer 16 and the elastic block 17 are placed in the accommodating groove 7. Subsequently, the operator places the nut 18 in the through groove 12 and restricts the rotation of the nut 18 through the anti-rotation step 13. Then, the operator slides the connecting bolt 15 through the elastic washer 16 and the elastic block 17 and passes it through the connecting hole 8 into the through groove 12 to be threadedly connected with the nut 18. The elastic washer 16 and the elastic block 17 gradually approach the connecting hole 8 under the action of the connecting bolt 15. When the elastic block 17 moves, the elastic block 17 can push the penetrating block 20, so as to push the penetrating block 20 into the second penetrating groove 21. Therefore, a part of the penetrating block 20 is located in the first penetrating groove 19 and another part is located in the second penetrating groove 21, thereby improving the connection relationship between the tooth head 1 and the tooth seat 2.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A dredging tooth, characterized in that: The invention comprises a tooth head (1) and a tooth seat (2), wherein a cavity (3) is provided inside the tooth head (1), the end of the tooth seat (2) is slidably inserted into the cavity (3) and abuts against the inner wall of the cavity (3), a connecting component for connecting the tooth head (1) and the tooth seat (2) is provided at the connection between the tooth head (1) and the tooth seat (2), a plurality of grooves (4) are provided on the inner wall of the cavity (3) along the axis of the tooth head (1), a plurality of ridges (5) matching the plurality of grooves (4) are provided on the outer wall of the end of the tooth seat (2), the plurality of ridges (5) can be slidably inserted into the plurality of grooves (4) respectively, and a fixing component for abutting and fixing the tooth head (1) is provided on the plurality of ridges (5).

2. A dredging tooth according to claim 1, characterized in that: The tooth head (1) is provided with a tooth root (6) near the end of the tooth seat (2), and the tooth root (6) is provided with a receiving groove (7) for accommodating a connecting component and a connecting hole (8) matched with the connecting component.

3. A dredging tooth according to claim 2, characterized in that: The tooth seat (2) comprises a head (9) extending deep into the cavity (3), a base (10) cooperating with the knife arm, and a connecting platform (11) for mounting the connecting component, wherein a nut structure is provided in the connecting platform (11), and the nut structure comprises a through groove (12), an anti-rotation step (13) and an abutting table surface (14).

4. A dredging tooth according to claim 3, characterized in that: The connection assembly comprises a connection bolt (15), an elastic washer (16), an elastic block (17) and a nut (18); the connection bolt (15) slides through the connection hole (8) and extends into the through slot (12); the elastic washer (16) is sleeved on the outer wall of the connection bolt (15); the elastic block (17) is sleeved on the outer wall of the connection bolt (15); the elastic washer (16) and the elastic block (17) are both placed in the receiving slot (7); the nut (18) is placed in the through slot (12) and the nut (18) is threadedly connected to the connection bolt (15); the circumferential side wall of the nut (18) abuts against the anti-rotation step (13); and one end face of the nut (18) abuts against the abutment table (14).

5. A dredging tooth according to claim 4, characterized in that: The tooth root (6) is provided with a first penetration groove (19) penetrating the accommodating groove (7); a penetration block (20) is slidably penetrated in the first penetration groove (19); a second penetration groove (21) is provided on the head (9); the penetration block (20) slides through the first penetration groove (19) and abuts against the inner wall of the second penetration groove (21); and the elastic block (17) is used to push the penetration block (20) to penetrate into the second penetration groove (21) after the connecting bolt (15) is tightened.

6. A dredging tooth according to claim 1, characterized in that: The fixing assembly comprises a pushing block (22) and two abutting blocks (23); the pushing block (22) is fixed in the groove (4); a third penetration groove (24) is provided on the convex ridge (5); the pushing block (22) is slidably penetrated into the third penetration groove (24); a fourth penetration groove (25) penetrating the third penetration groove (24) is provided on the convex ridge (5); two abutting blocks (23) are slidably disposed in the fourth penetration groove (25); abutting grooves (26) are provided on the inner walls of both sides of the groove (4); the two abutting blocks (23) are respectively slidably penetrated into the two abutting grooves (26) and abut against the inner walls of the abutting grooves (26) when pushed by the pushing block (22).

7. A dredging tooth according to claim 6, characterized in that: The pushing block (22) is provided with two first inclined surfaces (27) on the ends close to the two abutting blocks (23); the two abutting blocks (23) are provided with two second inclined surfaces (28) on the ends close to the pushing block (22); and the two second inclined surfaces (28) are respectively used to abut against the two first inclined surfaces (27); the two abutting blocks (23) are provided with third inclined surfaces (29) on the opposite sides thereof; and the third inclined surfaces (29) are parallel to the second inclined surfaces (28); and the two abutting grooves (26) are provided with fourth inclined surfaces (30); and the two fourth inclined surfaces (30) are respectively used to abut against the two third inclined surfaces (29).

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