Dredging tooth

Abstract

A dredging tooth is used for solving the problems that in the prior art, when a tool bit in a dredging tooth in the prior art is used for dredging, the tool bit often collides with a dredged object, vibration generated by collision can be transmitted to a bolt at the joint of the tool bit and a tooth holder, a bolt body can be gradually disengaged due to long-time vibration, and the dredging effect is poor. The tool bit comprises the tooth holder and a tool tooth provided with a mounting cavity, a connecting plate is fixedly arranged in the mounting cavity, and a through hole is formed in the connecting plate; an abutting plate is fixedly arranged on the tooth holder, the abutting plate slidably penetrates through the through hole and abuts against the side, away from the tooth holder, of the connecting plate, a first bolt slidably penetrates through the cutter teeth and is in threaded connection with the tooth holder, and two limiting assemblies used for preventing the first bolt from moving are arranged on the tooth holder. The tooth holder is in threaded connection with a second bolt used for fixing the limiting assembly, and an anti-loosening assembly used for preventing the second bolt from loosening is arranged at the end of the second bolt.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging teeth, in particular to a dredging tooth. Background Art

[0002] Dredging is the use of manual, hydraulic and mechanical means to excavate underwater materials such as mud and sand and transport them to another place. In this process, dredging changes the environmental conditions of the dredged area, making it more in line with people's expectations for improving the environment. This is the role of dredging.

[0003] The dredging teeth in the prior art, such as the utility model patent document with authorization announcement number "CN221072785U" and patent name "An Adjustable Reamer", discloses a dredging tooth, including a top plate and a bottom plate, a plurality of mounting plates are arranged between the top plate and the bottom plate, the mounting plates connect the top plate and the bottom plate, a plurality of cutter heads are evenly arranged on the mounting plates, and the two ends of the mounting plates in the length direction are respectively slidably arranged on the top plate and the bottom plate.

[0004] In the above patent document, when the cutter head is dredging, it often collides with the dredged object. The vibration generated by the collision will be transmitted to the bolts at the connection between the cutter head and the gear seat. The bolt body will gradually detach due to long-term vibration, causing the bolt to lose its connecting and tightening function, further affecting the tightening connection between the cutter head and the gear seat. Utility Model Content

[0005] The utility model aims to solve the technical problem that the cutter head of the dredging tooth in the prior art mentioned in the background technology often collides with the dredged object during dredging, and the vibration generated by the collision will be transmitted to the bolt at the connection between the cutter head and the tooth seat. The bolt body will gradually detach due to long-term vibration, thereby causing the bolt to lose its connecting and tightening function, further affecting the tightening connection between the cutter head and the tooth seat.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A dredging tooth comprises a tooth seat and a tooth with an installation cavity, a connecting plate is fixedly provided in the installation cavity and a through hole is provided on the connecting plate, an abutment plate is fixedly provided on the tooth seat and the abutment plate slides through the through hole and abuts against a side of the connecting plate away from the tooth seat, a first bolt is slidably passed through the tooth and the first bolt is threadedly connected to the tooth seat, two limiting components for preventing the first bolt from moving are provided on the tooth seat, a second bolt for fixing the limiting component is threadedly connected to the tooth seat, and an anti-loosening component is provided at the end of the second bolt for preventing the second bolt from loosening.

[0008] Working principle:

[0009] The tooth seat is fixedly installed on the reamer. When installing the cutter head, the operator aligns the through hole on the connecting plate with the abutment plate on the tooth seat. Then the abutment plate on the tooth seat slides through the through hole and rotates the cutter head so that the bottom surface of the abutment plate abuts against the top surface of the connecting plate. Then the operator threadedly connects the first bolt to the tooth seat. Then the operator can limit the first bolt through the limiting assembly to prevent the first bolt from loosening due to vibration. Then the operator fixes the limiting assembly through the second bolt and fixes the anti-loosening assembly at the end of the second bolt. The anti-loosening assembly can prevent the second bolt from loosening due to vibration.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] First, a first bolt is provided, and the first bolt can fasten the tooth seat and the cutter head to prevent the cutter head from falling off the tooth seat.

[0012] Second, a limiting component is provided, which can limit the position of the first bolt to prevent the first bolt from falling off due to vibration.

[0013] Third, a second bolt is provided, and the second bolt can fix the limiting assembly on the gear seat to prevent the limiting assembly from falling off the first bolt.

[0014] Fourth, an anti-loosening component is provided, which can fix the end of the second bolt, reduce the loosening of the second bolt after being vibrated, and strengthen the fastening connection relationship of the second bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the enlarged cross-sectional structure at point A in the middle.

[0017] Explanation of the accompanying drawings: tooth seat 1, mounting cavity 2, cutter tooth 3, connecting plate 4, through hole 5, abutment plate 6, first bolt 7, second bolt 8, guide bar 9, limiting block 10, first through hole 11, second through hole 12, third through hole 13, nut 14, mounting cover 15, third bolt 16, threaded hole 17, round hole 18, washer 19, wear-resistant block 20. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Example:

[0020] like Figure 1As shown, a dredging tooth comprises a tooth seat 1 and a tooth 3 with an installation cavity 2, a wear-resistant block 20 is provided on the top of the tooth 3, the wear-resistant block 20 can increase the service life of the cutter head, the wear-resistant block 20 is made of alloy material, a connecting plate 4 is fixedly provided in the installation cavity 2 and a through hole 5 is provided on the connecting plate 4, an abutment plate 6 is fixedly provided on the tooth seat 1 and the abutment plate 6 slides through the through hole 5 and abuts against the side of the connecting plate 4 away from the tooth seat 1, a first bolt 7 is slidably penetrated on the tooth 3 and the first bolt 7 is threadedly connected to the tooth seat 1, the through hole 5 can facilitate the abutment plate 6 on the tooth seat 1 to pass through the connecting plate 4, after the cutter head rotates a certain angle, the bottom surface of the abutment plate 6 abuts against the top surface of the connecting plate 4, and then the tooth seat 1 and the cutter head can be fastened and connected by the first bolt 7.

[0021] like Figure 1 As shown, the tooth seat 1 is provided with two limiting components for preventing the first bolt 7 from moving, and the limiting components include a guide bar 9 and a limiting block 10. The guide bar 9 is fixed on the tooth seat 1, and the limiting block 10 is slidably provided on the guide bar 9. A first through hole 11 is provided on the first bolt 7, and a second through hole 12 is provided on the connecting plate 4. The limiting block 10 slides through the first through hole 11 and the second through hole 12 and abuts against the abutting plate 6. The limiting block 10 can be moved by the guide bar 9, and the limiting block 10 can abut against the first bolt 7 and the connecting plate 4 through the first through hole 11 and the second through hole 12, thereby preventing the first bolt 7 from loosening when vibrated by the limiting block 10.

[0022] like Figure 1 As shown, the gear seat 1 is threadedly connected with a second bolt 8 for fixing the limiting assembly, and the limiting block 10 is provided with a third through hole 13. The second bolt 8 slides through the third through hole 13 and is threadedly connected to the gear seat 1. The second bolt 8 can be fastened to the gear seat 1 by passing through the third through hole 13, thereby fastening the limiting block 10.

[0023] like Figure 1 and Figure 2As shown, the end of the second bolt 8 is provided with an anti-loosening assembly for preventing the second bolt 8 from loosening, and the anti-loosening assembly includes a nut 14, a mounting cover 15 and a third bolt 16. A threaded hole 17 is provided inside the end of the second bolt 8, and the rotation direction of the threaded hole 17 is opposite to that of the second bolt 8. The nut 14 is threadedly connected to the end of the second bolt 8 and the nut 14 abuts against the limiting block 10. The two limiting blocks 10 can be fastened and connected by the second bolt 8 and the nut 14. A circular hole 18 is provided on the mounting cover 15 and the mounting cover 15 abuts against the nut 14. The third bolt 16 slides through the circular hole 18 and the third bolt 1 6 is threadedly connected with the threaded hole 17, and the third bolt 16 can be threadedly connected with the threaded hole 17 in the second bolt 8 through the mounting cover 15 and the third bolt 16. When the nut 14 is loosened, that is, the nut 14 rotates toward the mounting cover 15, under the action of friction, the mounting cover 15 and the third bolt 16 rotate in the same direction. Since the rotation direction of the third bolt 16 is opposite to that of the nut 14 and the second bolt 8, the above rotation causes the third bolt 16 to be further screwed into the threaded hole 17, thereby further increasing the extrusion force and friction force between the mounting cover 15 and the nut 14, so that the third bolt 16 plays a role in preventing loosening.

[0024] like Figure 1 and Figure 2 As shown, washers 19 are provided between the second bolt 8 and the limiting block 10 and between the third bolt 16 and the mounting cover 15 , and the washers 19 can effectively prevent vibration.

[0025] Working principle:

[0026] First, when installing the cutter head, the operator aligns the through hole 5 on the connecting plate 4 with the abutment plate 6 on the gear seat 1. Then the operator moves the cutter head toward the gear seat 1, and the abutment plate 6 on the gear seat 1 slides through the through hole 5. Then the operator rotates the cutter head. After the cutter head is rotated, the bottom surface of the abutment plate 6 can abut against the top surface of the connecting plate 4. Then the operator screws in the first bolt 7, and the first bolt 7 is threadedly connected to the gear seat 1, thereby fixing the cutter head on the gear seat 1.

[0027] Then the operator slides the two limiting blocks 10, and the limiting blocks 10 slide through the first penetration hole 11 and the second penetration hole 12. Thereafter, the operator passes the second bolt 8 through the third penetration hole 13 and threadedly connects it to the gear seat 1. The nut 14 is threadedly connected to the second bolt 8 to limit the positions of the two limiting blocks 10, so that the limiting blocks 10 can prevent the first bolt 7 from loosening after being vibrated.

[0028] Afterwards, the operator places the mounting cover 15 on the second bolt 8, and then the operator slides the third bolt 16 through the circular hole 18 and threadedly connects it with the threaded hole 17 on the second bolt 8. Under the action of friction, the mounting cover 15 and the third bolt 16 rotate in the same direction. Since the rotation direction of the third bolt 16 is opposite to that of the nut 14 and the second bolt 8, the above rotation causes the third bolt 16 to be further screwed into the threaded hole 17, thereby further increasing the extrusion force and friction force between the mounting cover 15 and the nut 14, so that the third bolt 16 plays a role in preventing loosening.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A dredging tooth, characterized in that: The invention comprises a tooth seat (1) and a tooth (3) having an installation cavity (2), wherein a connecting plate (4) is fixedly provided in the installation cavity (2) and a through hole (5) is provided on the connecting plate (4), an abutting plate (6) is fixedly provided on the tooth seat (1) and the abutting plate (6) slides through the through hole (5) and abuts against a side of the connecting plate (4) away from the tooth seat (1), a first bolt (7) is slidably passed through the tooth (3) and the first bolt (7) is threadedly connected to the tooth seat (1), two limiting components for preventing the first bolt (7) from moving are provided on the tooth seat (1), a second bolt (8) for fixing the limiting component is threadedly connected to the tooth seat (1), and an anti-loosening component for preventing the second bolt (8) from loosening is provided at the end of the second bolt (8).

2. A dredging tooth according to claim 1, characterized in that: The limiting assembly comprises a guide bar (9) and a limiting block (10); the guide bar (9) is fixed on the gear seat (1); the limiting block (10) is slidably arranged on the guide bar (9); a first through hole (11) is provided on the first bolt (7); a second through hole (12) is provided on the connecting plate (4); the limiting block (10) slides through the first through hole (11) and the second through hole (12) and abuts against the abutment plate (6).

3. A dredging tooth according to claim 2, characterized in that: The limiting block (10) is provided with a third penetration hole (13), and the second bolt (8) slides through the third penetration hole (13) and is threadedly connected to the gear seat (1).

4. A dredging tooth according to claim 3, characterized in that: The anti-loosening assembly comprises a nut (14), a mounting cover (15) and a third bolt (16); a threaded hole (17) is provided inside the end of the second bolt (8) and the rotation direction of the threaded hole (17) is opposite to that of the second bolt (8); the nut (14) is threadedly connected to the end of the second bolt (8) and the nut (14) abuts against the limiting block (10); a circular hole (18) is provided on the mounting cover (15) and the mounting cover (15) abuts against the nut (14); the third bolt (16) slides through the circular hole (18) and the third bolt (16) is threadedly connected to the threaded hole (17).

5. A dredging tooth according to claim 4, characterized in that: Washers (19) are provided between the second bolt (8) and the limiting block (10) and between the third bolt (16) and the mounting cover (15).

6. A dredging tooth according to claim 1, characterized in that: A wear-resistant block (20) is provided on the top of the blade tooth (3).

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