A rock cutter for a cutter suction dredger

Abstract

The utility model relates to the dredging engineering technical field especially relates to a kind of rock excavating reamer for cutter suction dredger, including suction pipe, mounting disc, drive shaft, installation cylinder, reamer assembly, connecting ring, stirring column, multiple grinding columns and hydraulic auxiliary assembly, when using, drive shaft drives reamer assembly to carry out crushing to rock and soil, after crushing, rock and soil enter the suction pipe in suction port, while, stirring column rotates under the action of drive shaft and connecting ring, drive larger rock and soil and grinding column between friction, carry out secondary crushing to the rock and soil after crushing, avoid rock and soil to block suction port, further hydraulic auxiliary assembly operation, impact surface, reduce its shear strength, improve secondary crushing effect, solve when working in the water area with more stones, larger rock and soil after crushing easily enter reamer interior, cause the blockage of reamer, while, also easily cause the blockage of suction port, and then affect dredging engineering operation efficiency problem.

Description

Technical Field

[0001] This utility model relates to the field of dredging engineering technology, and in particular to a rock-dredging cutter for a cutter suction dredger. Background Technology

[0002] In dredging projects, cutter suction dredgers use rotating cutters to loosen the soil on the riverbed or seabed, mix it with water to form mud, suck it into the pump body through the suction pipe, and send it to the discharge area through the discharge pipe, thereby achieving the dredging effect.

[0003] However, during actual construction, it was found that due to different working environments and different geological conditions at the bottom of the river or sea, when working in waters with many rocks, after the rocks are broken up by the cutter head, larger pieces of rock and soil can easily enter the cutter head, causing blockage. At the same time, it can also easily cause blockage of the suction port, seriously affecting the efficiency of the dredging project. Utility Model Content

[0004] The purpose of this utility model is to provide a rock-dredging cutter for a cutter suction dredger, which solves the problem that when working in waters with many rocks, large pieces of broken rock and soil can easily enter the cutter, causing blockage of the cutter and the suction port, thus affecting the efficiency of dredging operations.

[0005] To achieve the above objectives, this utility model provides a cutting head for a cutter suction dredger, comprising a suction pipe, a mounting plate, a drive shaft, a mounting cylinder, a cutter assembly, a connecting ring, a stirring column, multiple grinding columns, and a hydraulic auxiliary assembly. The suction pipe is fixedly connected to the mounting plate and located on one side of the mounting plate. The mounting cylinder is fixedly connected to the mounting plate and located on the side of the mounting plate away from the suction pipe. The mounting plate is provided with multiple suction ports, which communicate between the suction pipe and the mounting cylinder. The drive shaft is fixedly connected to the mounting plate and located inside the mounting cylinder. The cutter assembly is located on the side of the mounting cylinder away from the mounting plate. The connecting ring is fixedly connected to the drive shaft and located on the outer wall of the drive shaft. The stirring column is fixedly connected to the connecting ring and located on the outer wall of the connecting ring. The multiple grinding columns are respectively fixedly connected to the mounting cylinder and located on the inner wall of the mounting cylinder. The hydraulic auxiliary assembly is disposed on the mounting plate.

[0006] The reamer assembly includes a mounting ring, a cutter arm, and cutter teeth. The mounting ring is rotatably connected to the mounting cylinder and is located on the side of the mounting cylinder away from the mounting plate. The cutter arm is fixedly connected between the mounting ring and the drive shaft. The cutter teeth are fixedly connected to the cutter arm and are located on the outer side wall of the cutter arm.

[0007] The hydraulic auxiliary component includes a protective shell, a pump body, a high-pressure nozzle, and a water delivery pipe. The protective shell is fixedly connected to the mounting plate and is located on the side of the mounting plate away from the sludge suction pipe. The pump body is installed inside the protective shell. The high-pressure nozzle is installed at the output end of the pump body. One end of the water delivery pipe is fixedly connected to the input end of the pump body, and the other end of the water delivery pipe passes through the mounting plate.

[0008] The cutting head for the cutter suction dredger also includes an installation mechanism, which is located on the outer side wall of the drive shaft.

[0009] The mounting mechanism includes a mounting base and a drill bit. The mounting base is fixedly connected to the drive shaft and is located at the end of the drive shaft away from the mounting plate. The drill bit is fixedly connected to the mounting base and is located at the end of the mounting base away from the drive shaft.

[0010] This utility model discloses a rock-dredging cutter head for a cutter suction dredger. During operation, the drive shaft operates, and the cutter head assembly crushes the rock and soil. The crushed rock and soil enters the suction pipe through the suction port. Simultaneously, the stirring column rotates under the action of the drive shaft and the connecting ring, causing larger rock and soil pieces to rub against the grinding column, thus performing secondary crushing and preventing the rock and soil from clogging the suction port. Furthermore, the hydraulic auxiliary component operates to impact the surface of larger rock and soil pieces, reducing their shear strength and improving the secondary crushing effect. This solves the problem that in waters with many rocks, larger crushed rock and soil pieces easily enter the cutter head, causing blockage and clogging of the suction port, thus affecting the efficiency of dredging operations. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the mounting cylinder according to the first embodiment of this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the protective shell according to the first embodiment of this utility model.

[0015] Figure 4 This is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0016] 101-Suction pipe, 102-Mounting plate, 103-Drive shaft, 104-Mounting cylinder, 105-Connecting ring, 106-Agitating column, 107-Grinding column, 108-Mounting ring, 109-Cutter arm, 110-Cutter teeth, 111-Protective shell, 112-Pump body, 113-High-pressure nozzle, 114-Water pipe, 115-Suction port, 201-Mounting base, 202-Drill bit. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] First embodiment, Please see Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this utility model. Figure 2 This is a schematic diagram of the internal structure of the mounting cylinder according to the first embodiment of this utility model. Figure 3 This is a schematic diagram of the internal structure of the protective shell according to the first embodiment of this utility model.

[0019] This utility model provides a rock-dredging cutterhead for a cutter suction dredger, including a suction pipe 101, a mounting plate 102, a drive shaft 103, a mounting cylinder 104, a cutterhead assembly, a connecting ring 105, a stirring column 106, multiple grinding columns 107, and a hydraulic auxiliary assembly. The cutterhead assembly includes a mounting ring 108, a cutter arm 109, and cutter teeth 110. The hydraulic auxiliary assembly includes a protective shell 111, a pump body 112, a high-pressure nozzle 113, and a water delivery pipe 114. The above structure solves the problem that when working in waters with many rocks, large pieces of broken rock and soil can easily enter the cutterhead, causing blockage. At the same time, it can also easily cause blockage of the suction port 115, thus affecting the efficiency of dredging operations.

[0020] In a specific embodiment, the suction pipe 101 is fixedly connected to the mounting plate 102 and located on one side of the mounting plate 102. The mounting cylinder 104 is fixedly connected to the mounting plate 102 and located on the side of the mounting plate 102 away from the suction pipe 101. The mounting plate 102 is provided with multiple suction ports 115, which connect the suction pipe 101 and the mounting cylinder 104. The drive shaft 103 is fixedly connected to the mounting plate 102 and located inside the mounting cylinder 104. The auger assembly is located on the side of the mounting cylinder 104 away from the mounting plate 102. The connecting ring 105 is fixedly connected to the drive shaft 103 and located on the outer wall of the drive shaft 103. The stirring column 106 is fixedly connected to the connecting ring 105 and located on the outer wall of the connecting ring 105. Multiple grinding columns 107 are respectively connected to the mounting cylinder 104. 4. A fixed connection is established and located on the inner wall of the mounting cylinder 104. The hydraulic auxiliary component is mounted on the mounting plate 102. During use, the drive shaft 103 operates, and the cutter assembly crushes the rock and soil. After crushing, the rock and soil enter the suction pipe 101 through the suction port 115. At the same time, the stirring column 106 rotates under the action of the drive shaft 103 and the connecting ring 105, causing larger rock and soil to rub against the grinding column 107, thus performing secondary crushing on the crushed rock and soil and preventing the rock and soil from clogging the suction port 115. Furthermore, the hydraulic auxiliary component operates to impact the surface of larger rock and soil, reducing its shear strength and improving the secondary crushing effect. This solves the problem that when working in waters with many rocks, larger rock and soil after crushing easily enters the cutter, causing blockage of the cutter and the suction port 115, thereby affecting the efficiency of dredging operations.

[0021] The mounting ring 108 is rotatably connected to the mounting cylinder 104 and is located on the side of the mounting cylinder 104 away from the mounting plate 102. The cutter arm 109 is fixedly connected between the mounting ring 108 and the drive shaft 103. The cutter teeth 110 are fixedly connected to the cutter arm 109 and are located on the outer side wall of the cutter arm 109. The mounting ring 108 and the drive shaft 103 cooperate to fix the cutter arm 109. In use, the drive shaft 103 operates, the mounting ring 108 rotates, and the cutter arm 109 and the cutter teeth 110 cooperate to crush the rock and soil.

[0022] The protective shell 111 is fixedly connected to the mounting plate 102 and is located on the side of the mounting plate 102 away from the suction pipe 101. The pump body 112 is installed inside the protective shell 111. The high-pressure nozzle 113 is installed at the output end of the pump body 112. One end of the water supply pipe 114 is fixedly connected to the input end of the pump body 112, and the other end of the water supply pipe 114 passes through the mounting plate 102. A filter screen is provided at the end of the water supply pipe 114 away from the pump body 112 to prevent the water supply pipe 114 from becoming clogged. Since the dredger is in motion, soil and rock are less likely to adhere to the filter screen. The protective shell 111 is used to protect the pump body 112 and the high-pressure nozzle 113. In use, the pump body 112 operates, and river water or seawater is transported to the high-pressure nozzle 113 through the water supply pipe 114. The high-pressure nozzle 113 sprays water to further crush smaller soil and rock, and at the same time, impacts the surface of hard soil and rock to reduce its shear strength. Furthermore, since the water source of the high-pressure nozzle 113 is taken from seawater or river water, a closed-loop waterway is formed, reducing dependence on external water sources.

[0023] Second embodiment, Please see Figure 4 , Figure 4 This is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0024] Based on the first embodiment, the rock-dredging cutter for a cutter suction dredger of the present invention further includes an installation mechanism, which includes a mounting base 201 and a drill bit 202.

[0025] In a specific embodiment, the mounting mechanism is disposed on the outer side wall of the drive shaft 103, and the mounting mechanism is used to break hard obstacles.

[0026] The mounting base 201 is fixedly connected to the drive shaft 103 and is located at the end of the drive shaft 103 away from the mounting plate 102. The drill bit 202 is fixedly connected to the mounting base 201 and is located at the end of the mounting base 201 away from the drive shaft 103. The mounting base 201 is used to mount the drill bit 202. The rotation of the drive shaft 103 drives the drill bit 202 to rotate. The drill bit 202 performs high-frequency impact on hard rock and soil, pre-breaking the surface of hard rock and soil, reducing the difficulty of subsequent cutting by the auger, and preventing hard rock and soil from accelerating the wear of the cutting teeth 110.

[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A cutting head for a cutter suction dredger, characterized in that, The device includes a suction pipe, a mounting plate, a drive shaft, a mounting cylinder, a cutter assembly, a connecting ring, a stirring column, multiple grinding columns, and a hydraulic auxiliary assembly. The suction pipe is fixedly connected to the mounting plate and located on one side of the mounting plate. The mounting cylinder is fixedly connected to the mounting plate and located on the side of the mounting plate away from the suction pipe. The mounting plate has multiple suction ports that connect the suction pipe and the mounting cylinder. The drive shaft is fixedly connected to the mounting plate and located inside the mounting cylinder. The cutter assembly is located on the side of the mounting cylinder away from the mounting plate. The connecting ring is fixedly connected to the drive shaft and located on the outer wall of the drive shaft. The stirring column is fixedly connected to the connecting ring and located on the outer wall of the connecting ring. The multiple grinding columns are respectively fixedly connected to the mounting cylinder and located on the inner wall of the mounting cylinder. The hydraulic auxiliary assembly is located on the mounting plate.

2. The cutting head for a cutter suction dredger as described in claim 1, characterized in that, The reamer assembly includes a mounting ring, a cutter arm, and cutter teeth. The mounting ring is rotatably connected to the mounting cylinder and is located on the side of the mounting cylinder away from the mounting plate. The cutter arm is fixedly connected between the mounting ring and the drive shaft. The cutter teeth are fixedly connected to the cutter arm and are located on the outer side wall of the cutter arm.

3. The cutting head for a cutter suction dredger as described in claim 1, characterized in that, The hydraulic auxiliary component includes a protective shell, a pump body, a high-pressure nozzle, and a water delivery pipe. The protective shell is fixedly connected to the mounting plate and is located on the side of the mounting plate away from the sludge suction pipe. The pump body is installed inside the protective shell. The high-pressure nozzle is installed at the output end of the pump body. One end of the water delivery pipe is fixedly connected to the input end of the pump body, and the other end of the water delivery pipe passes through the mounting plate.

4. A cutting head for a cutter suction dredger as described in claim 1, characterized in that, The cutting head for the cutter suction dredger also includes an installation mechanism, which is disposed on the outer side wall of the drive shaft.

5. A cutting head for a cutter suction dredger as described in claim 4, characterized in that, The mounting mechanism includes a mounting base and a drill bit. The mounting base is fixedly connected to the drive shaft and is located at the end of the drive shaft away from the mounting plate. The drill bit is fixedly connected to the mounting base and is located at the end of the mounting base away from the drive shaft.

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