Reamer head for cutter suction dredger

Abstract

The utility model discloses a reamer head for cutter suction dredgers, which relates to the technical field of reamer for cutter suction dredgers and comprises a reamer head body, a plurality of reamer arms are formed on the outer wall of the reamer head body at equal intervals in the circumferential direction, a plurality of supporting sockets are transversely formed on the reamer arms at equal intervals, and cutter teeth are arranged on the upper surfaces of the supporting sockets. And a positioning mechanism for clamping and positioning the cutter teeth is arranged on the supporting socket. By means of the positioning mechanism, the cutter teeth and the supporting socket can be conveniently disassembled and assembled, so that the purpose of conveniently replacing the cutter teeth is achieved, in the cutter tooth replacing process, the limiting insertion rod is fixedly connected with new cutter teeth, the limiting insertion rod can be reserved, and the cutter teeth can be conveniently replaced. Therefore, the cost for replacing the cutter teeth is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of cutter head technology for cutter suction dredgers, specifically a cutter head for cutter suction dredgers. Background Technology

[0002] A cutter suction dredger, also known as a mud dredger, is an engineering vessel specifically designed for dredging waterways, ports, rivers, and reservoirs. Its main functions include dredging waterways, widening and deepening water areas, and it is widely used in port construction and maintenance, water conservancy projects, and other fields.

[0003] When in use, a cutter suction dredger loosens the sediment at the bottom of the water by rotating the cutter head. Then, the vacuum generated by the mud pump is used to suck in the mud and transport it to a designated location through the mud discharge pipe. During the excavation process, the cutter head teeth will come into contact with hard objects such as riverbed soil and rocks. When excavating saline or corrosive soil, the material of the cutter teeth may be corroded. Therefore, the cutter teeth need to be replaced regularly according to the damage condition.

[0004] In existing cutterheads, the cutting teeth are generally fixed to the cutterhead with bolts, so when the cutting teeth are replaced, the insert rod at the bottom of the cutting teeth is also replaced. In order to further reduce the cost of replacing the cutting teeth, a cutterhead for marine cutterheads is provided, which can eliminate the drawbacks of the existing device. Utility Model Content

[0005] The purpose of this utility model is to provide a cutter head for a cutter suction dredger to solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A cutter head for a cutter suction dredger includes a cutter head body. Multiple cutter arms are circumferentially and equidistantly formed on the outer wall of the cutter head body. Multiple support sockets are transversely and equidistantly formed on the multiple cutter arms. Cutter teeth are provided on the upper surface of the multiple support sockets. A positioning mechanism for engaging and positioning the cutter teeth is provided on the support socket.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative embodiment, the positioning mechanism includes:

[0010] A docking component is provided on the blade teeth, the docking component being used for convenient docking between the blade teeth and the support socket;

[0011] The docking components include:

[0012] A limiting rod is provided on the lower surface of the blade teeth, the limiting rod extends into the interior of the support socket, and a mating groove is provided at the position where the support socket and the limiting rod meet;

[0013] The limiting rod is provided with a connecting component, which is used to connect and fix the limiting rod to the cutting teeth.

[0014] In one alternative: the connecting component is a threaded connecting shaft fixedly connected to the top of the limiting rod, the threaded connecting shaft extending into the interior of the cutting teeth, and the threaded connecting shaft being threadedly connected to the cutting teeth;

[0015] The support socket is provided with a first positioning component, which is used to prevent the blade teeth from rotating during installation.

[0016] In one alternative embodiment: the first positioning component includes:

[0017] Multiple mating blocks are circumferentially and equidistantly fixed to the top of the support socket, and all of the multiple mating blocks penetrate into the interior of the blade teeth;

[0018] The support socket is provided with a second positioning component, which is used to engage and limit the limiting plug.

[0019] In one alternative embodiment, the second positioning component includes:

[0020] Multiple positioning blocks are circumferentially and equidistantly arranged on the outside of the limiting plug rod. All of the positioning blocks are located inside the support socket and are slidably connected to the support socket. All of the positioning blocks penetrate the support socket to the inside of the limiting plug rod. An annular groove is provided at the position where the limiting plug rod connects with the positioning blocks.

[0021] The positioning block is equipped with a reset component, which is used to push the positioning block to automatically reset.

[0022] In one alternative: the reset component is a rubber airbag fixedly connected to the end of the positioning block away from the limiting rod;

[0023] The support socket is provided with a receiving component, which is used to allow the rubber airbag to deform and expand.

[0024] In one alternative: the receiving component is a receiving groove formed at the junction of the support socket and the rubber airbag;

[0025] The support socket is provided with a locking component, which is used to lock and fix the limiting plug rod.

[0026] In one alternative: the locking component is a bolt disposed at one end of the support socket, the bolt passing through the support socket to the interior of the limiting rod, and the bolt being threadedly connected to the support socket.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] This utility model enables convenient disassembly and installation of the blade teeth and support socket through a positioning mechanism, thereby facilitating the replacement of the blade teeth. Furthermore, during the replacement of the blade teeth, the limiting rod is fixedly connected to the new blade teeth, thus retaining the limiting rod and further reducing the cost required for blade tooth replacement. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the internal structure of the support socket of this utility model.

[0031] Figure 3 This is an exploded structural diagram of the positioning mechanism of this utility model.

[0032] Figure 4 This is a schematic diagram of the connection structure between the limiting rod and the cutting teeth of this utility model.

[0033] Figure reference numerals: 1. Reamer head body; 201. Annular groove; 202. Rubber air bladder; 203. Bolt; 204. Receiving groove; 205. Threaded connecting shaft; 206. Abutment sleeve groove; 207. Positioning block; 208. Abutment block; 209. Limiting rod; 3. Cutter arm; 4. Cutter teeth; 5. Support socket; 6. Anti-winding blade. Detailed Implementation

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0035] In one embodiment, Figure 1-Figure 4 As shown, a cutter head for a cutter suction dredger includes a cutter head body 1. Multiple cutter arms 3 are equidistantly formed on the outer wall of the cutter head body 1. Multiple support sockets 5 are equidistantly formed on the multiple cutter arms 3. Cutter teeth 4 are provided on the upper surface of the multiple support sockets 5. Multiple anti-winding blades 6 are equidistantly arranged on the cutter head body 1. An installation slot is provided at the junction of the cutter arms 3 and the anti-winding blades 6. The multiple anti-winding blades 6 are fixedly connected to the multiple cutter arms 3 through the installation slots. The multiple anti-winding blades 6 and the multiple support sockets 5 are interleaved. A positioning mechanism for engaging and positioning the cutter teeth 4 is provided on the support sockets 5.

[0036] The positioning mechanism includes: a docking component disposed on the blade tooth 4, which is used for convenient docking between the blade tooth 4 and the support socket 5;

[0037] The docking assembly includes: a limiting rod 209 disposed on the lower surface of the blade tooth 4, the limiting rod 209 penetrating into the interior of the support socket 5, a docking groove 206 being provided at the junction of the support socket 5 and the limiting rod 209, the bottom outer wall of the limiting rod 209 being frustoconical, the limiting rod 209 being slidably connected to the docking groove 206, and the limiting rod 209 being precisely inserted into the inner cavity of the docking groove 206 through the frustoconical outer wall;

[0038] A connecting component is provided on the limiting rod 209, which is used to connect and fix the limiting rod 209 to the cutting tooth 4;

[0039] In this embodiment, it should be noted that the anti-winding blade 6 and the blade arm 3 are connected and fixed by plugging in, and can also be fixed by welding.

[0040] During use, when facing a continuous stream of long drainage boards underwater, the cutter head body 1 can continuously cut the absorbed long drainage boards by rotating the anti-entanglement blade 6. This can significantly reduce the number of long drainage boards entering the cutter head body 1 without being cut. After being cut by the anti-entanglement blade 6, it can ensure that the cut drainage board fragments do not clog the cutting edge, ultimately improving the excavation and filling efficiency.

[0041] When the blade tooth 4 is replaced, the limiting lock on the limiting rod 209 can be released by the positioning mechanism. Then, the blade tooth 4 is pulled to separate from the support socket 5. During this process, the limiting rod 209 moves synchronously along the inner wall of the mating sleeve groove 206 through the threaded connecting shaft 205 driven by the blade tooth 4, so as to facilitate the disassembly of the blade tooth 4.

[0042] Then, rotating the limiting rod 209 causes the threaded connecting shaft 205 to separate from the cutting tooth 4. The limiting rod 209 can be fixedly connected to the new cutting tooth 4 through the threaded connecting shaft 205, which can further reduce the cost required to replace the cutting tooth 4. Then, the above operation is reversed to facilitate the installation of the cutting tooth 4 and the support socket 5.

[0043] In one embodiment, Figure 4As shown, the connecting component is a threaded connecting shaft 205 fixedly connected to the top of the limiting rod 209. The threaded connecting shaft 205 extends into the interior of the cutting tooth 4 and is threadedly connected to the cutting tooth 4. The threaded connecting shaft 205 allows the limiting rod 209 to be separated from the cutting tooth 4 when the cutting tooth 4 is severely worn and needs to be replaced, thereby effectively reducing the cost required for replacing the cutting tooth 4.

[0044] The support socket 5 is provided with a first positioning component, which is used to prevent the blade 4 from rotating during installation.

[0045] In one embodiment, Figure 2-Figure 3 As shown, the first positioning component includes: multiple docking blocks 208 that are circumferentially and equidistantly fixed to the top of the support socket 5. The multiple docking blocks 208 all penetrate into the interior of the blade tooth 4. The outer walls of the multiple docking blocks 208 are all frustum-shaped. Positioning slots are provided at the contact points between the blade tooth 4 and the multiple docking blocks 208. Through the mutual cooperation between the frustum-shaped outer walls and the positioning slots, the blade tooth 4 can accurately engage the outer walls of the multiple docking blocks 208.

[0046] The support socket 5 is provided with a second positioning component, which is used to engage and limit the limiting plug 209;

[0047] The second positioning component includes: multiple positioning blocks 207 circumferentially and equidistantly arranged on the outside of the limiting rod 209. The multiple positioning blocks 207 are all located inside the support socket 5 and are slidably connected to the support socket 5. The multiple positioning blocks 207 penetrate the support socket 5 to the inside of the limiting rod 209. An annular groove 201 is provided at the position where the limiting rod 209 and the positioning blocks 207 meet. The outer wall of the end of the multiple positioning blocks 207 near the limiting rod 209 is hemispherical. The inner wall of the annular groove 201 fits against the outer wall of the positioning blocks 207. Through the cooperation of the first positioning component and the second positioning component, the rotation and lifting of the blade tooth 4 can be automatically positioned, thereby effectively preventing the blade tooth 4 from shifting during the locking process.

[0048] The positioning block 207 is equipped with a reset component, which is used to push the positioning block 207 to automatically reset.

[0049] In one embodiment, Figure 2-Figure 3 As shown, the reset component is a rubber airbag 202 fixedly connected to the end of the positioning block 207 away from the limiting rod 209;

[0050] The support socket 5 is provided with a receiving component, which is used to allow the rubber airbag 202 to deform and expand;

[0051] The receiving component is a receiving groove 204 opened at the position where the support socket 5 connects with the rubber airbag 202. The inner diameter of the receiving groove 204 is larger than the outer diameter of the rubber airbag 202. Through the mutual cooperation between the rubber airbag 202 and the receiving groove 204, the rubber airbag 202 can deform and expand along the inner wall of the receiving groove 204 in the inner cavity of the receiving groove 204 under the compression of the positioning block 207.

[0052] The support socket 5 is provided with a locking component, which is used to lock and fix the limiting plug 209.

[0053] In one embodiment, Figure 2-Figure 3 As shown, the locking component is a bolt 203 located at one end of the support socket 5. The bolt 203 passes through the support socket 5 to the inside of the limiting rod 209, and the bolt 203 is threadedly connected to the support socket 5.

[0054] The above embodiments disclose a cutter head for a cutter suction dredger. In use, when facing a continuous stream of long drainage boards underwater, the cutter head body 1 drives the anti-entanglement blade 6 to rotate, which can continuously cut the absorbed long drainage boards. This can significantly reduce the number of long drainage boards entering the cutter head body 1 without being cut. After being cut by the anti-entanglement blade 6, it can be ensured that the cut drainage board fragments do not clog the cutter head, ultimately improving the dredging and filling efficiency.

[0055] When replacing the cutting tooth 4, the rotating bolt 203 separates from the limiting rod 209, thereby releasing the limiting lock on the limiting rod 209. Then, the cutting tooth 4 is pulled to separate from the support socket 5 and the docking block 208. During this process, the limiting rod 209 moves synchronously along the inner wall of the docking sleeve groove 206 through the threaded connecting shaft 205 driven by the cutting tooth 4. At the same time, the positioning block 207 slides along the inner wall of the support socket 5 through the annular groove 201 under the pressure of the limiting rod 209. At this time, the positioning block 207 deforms and expands in the inner cavity of the receiving groove 204 by moving and squeezing the rubber air bag 202.

[0056] When the cutting tooth 4 separates from the docking block 208, the rotation limit of the cutting tooth 4 can be released. When the limit rod 209 separates from the positioning block 207, the rubber airbag 202 rebounds and pushes the positioning block 207 to automatically reset, so as to facilitate the disassembly of the cutting tooth 4.

[0057] Then, rotating the limiting rod 209 causes the threaded connecting shaft 205 to separate from the cutting tooth 4. The threaded connecting shaft 205 allows the limiting rod 209 to be fixedly connected to the new cutting tooth 4, thereby further reducing the cost required to replace the cutting tooth 4. Then, the above operation is reversed. During this process, the limiting rod 209 can be initially positioned by the docking block 208 and the positioning block 207, and the support socket 5 and the hole groove on the limiting rod 209 are automatically aligned, so as to facilitate the installation of the cutting tooth 4 and the support socket 5.

[0058] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cutter head for a cutter suction dredger, comprising a cutter head body (1), wherein a plurality of cutter arms (3) are equidistantly formed on the outer wall of the cutter head body (1), and a plurality of support sockets (5) are equidistantly formed on the plurality of cutter arms (3) in the transverse direction, wherein the upper surface of the plurality of support sockets (5) is provided with cutter teeth (4), characterized in that, The support socket (5) is provided with a positioning mechanism for engaging and positioning the blade teeth (4).

2. The cutterhead for a cutter suction dredger as described in claim 1, characterized in that, The positioning mechanism includes: a docking component disposed on the blade (4), the docking component being used for convenient docking of the blade (4) and the support socket (5); The docking assembly includes: a limiting rod (209) disposed on the lower surface of the blade (4), the limiting rod (209) extending into the interior of the support socket (5), and a docking groove (206) being provided at the position where the support socket (5) connects with the limiting rod (209); The limiting rod (209) is provided with a connecting component, which is used to connect and fix the limiting rod (209) and the cutting tooth (4).

3. A cutterhead for a cutter suction dredger as described in claim 2, characterized in that, The connecting component is a threaded connecting shaft (205) fixedly connected to the top of the limiting plug (209). The threaded connecting shaft (205) extends into the interior of the cutting tooth (4) and is threadedly connected to the cutting tooth (4). The support socket (5) is provided with a first positioning component, which is used to prevent the blade (4) from rotating during installation.

4. A cutterhead for a cutter suction dredger as described in claim 3, characterized in that, The first positioning component includes: a plurality of docking blocks (208) that are circumferentially and equidistantly fixed to the top of the support socket (5), and the plurality of docking blocks (208) all penetrate into the interior of the cutting teeth (4); The support socket (5) is provided with a second positioning component, which is used to engage and limit the limiting plug (209).

5. A cutterhead for a cutter suction dredger as described in claim 4, characterized in that, The second positioning component includes: a plurality of positioning blocks (207) circumferentially and equidistantly arranged on the outside of the limiting rod (209), the plurality of positioning blocks (207) being located inside the support socket (5), the plurality of positioning blocks (207) being slidably connected to the support socket (5), the plurality of positioning blocks (207) penetrating through the support socket (5) to the inside of the limiting rod (209), and an annular groove (201) being provided at the contact position between the limiting rod (209) and the positioning blocks (207); The positioning block (207) is provided with a reset component, which is used to push the positioning block (207) to automatically reset.

6. A cutterhead for a cutter suction dredger as described in claim 5, characterized in that, The reset component is a rubber airbag (202) fixedly connected to the end of the positioning block (207) away from the limiting rod (209); The support socket (5) is provided with a receiving component, which is used to allow the rubber airbag (202) to deform and expand.

7. A cutterhead for a cutter suction dredger as described in claim 6, characterized in that, The receiving component is a receiving groove (204) opened at the junction of the support socket (5) and the rubber airbag (202); The support socket (5) is provided with a locking component, which is used to lock and fix the limiting plug (209).

8. A cutterhead for a cutter suction dredger as described in claim 7, characterized in that, The locking component is a bolt (203) disposed at one end of the support socket (5). The bolt (203) passes through the support socket (5) to the inside of the limiting rod (209). The bolt (203) is threadedly connected to the support socket (5).

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