CN112064709A - Combined rock breaking cutter head structure - Google Patents
Combined rock breaking cutter head structure Download PDFInfo
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- CN112064709A CN112064709A CN202010684922.4A CN202010684922A CN112064709A CN 112064709 A CN112064709 A CN 112064709A CN 202010684922 A CN202010684922 A CN 202010684922A CN 112064709 A CN112064709 A CN 112064709A
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- saw blade
- box body
- rock
- impact hammer
- valve
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8833—Floating installations
- E02F3/8841—Floating installations wherein at least a part of the soil-shifting equipment is mounted on a ladder or boom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8833—Floating installations
- E02F3/885—Floating installations self propelled, e.g. ship
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
- E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
- E02F3/9281—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements with axis of rotation in horizontal and transverse direction of the suction pipe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/961—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements with several digging elements or tools mounted on one machine
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
- E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a combined rock breaking tool bit structure which comprises a saw blade device, an impact hammer device, a saw blade driving device, an impact hammer driving device, a box body, a pipeline and a connecting piece, wherein the saw blade device is arranged on the box body; the saw blade device, the impact hammer device, the saw blade driving device and the impact hammer driving device are arranged in the box body, the pipeline is arranged on the part of the box body, and the connecting piece is used for connecting the combined rock breaking tool bit and the working arm of the multifunctional dredger; the saw blade device and the saw blade driving device are arranged on the lower box body; the impact hammer device and the impact hammer driving device are both arranged in the box body. The invention performs pre-breaking rock through the saw blade, namely, cuts a rectangular groove, then uses the impact hammer to impact and break the rock, and finally uses the cutter suction pump of the multifunctional dredger to suck and transport the broken rock and the muddy water mixture generated by the rock breaking through the pipeline part. The method can strengthen the rock breaking effect of the impact hammer, enrich the underwater rock breaking method, finally realize the integration of rock breaking, rock suction and rock transportation, and has great significance for the dredging industry and even the whole shipping industry.
Description
Technical Field
The invention relates to a combined rock breaking cutter head structure, and belongs to the technical field of dredging equipment.
Background
With the further development of shipping industry in China, the requirements of port, channel, wharf and other infrastructure are increased day by day, the dredging industry is gradually developed with the trend of shipping industry development, but the dredging equipment of the dredging industry faces more and more tests and is more and more severe. When a dredger is used for construction operation, the dredger inevitably contacts with obstacles which are difficult to remove, such as reamer blades and drag heads of coral reefs and granites. The direct rock breaking by the blasting method has the problems and disadvantages of large dynamic and static, pollution, higher mechanical automation difficulty, various operation steps and the like. The direct rock breaking action of the breaking hammer is small in movement and static, pollution is basically avoided, energy is saved, environment is protected, the breaking hammer can be used for directly excavating, the construction period is effectively shortened, and the rock breaking efficiency is improved. However, after the breaking hammer breaks the rock, other equipment such as a grab dredger and a backhoe dredger is still needed to clean the broken rock. The high-pressure water jet rock breaking has no cutter abrasion, does not generate dust and sparks, and is easy to realize centralized control. However, the high-pressure water jet requires a high-pressure water pump as a precondition, and the energy consumption is large. For softer substances such as ordinary silt at the bottom of the water, the multifunctional dredger directly utilizes the reamer to suck the substances out and directly and accurately discharges the substances to a final settlement area through the dredge pump; when the soil is very hard or contains large rocks or other objects with large dimensions unsuitable for pumping, the multi-function dredger is switched to a backhoe dredging operation, similar to a land backhoe, which directly lifts the materials and then pours them into a transport vehicle (ship) and performs the related work. However, when continuous hard rocks in a certain area are encountered, the multifunctional dredger only utilizes the hydraulic hammer to crush the rocks to reduce the volume of the rocks to a value capable of being shoveled by a backhoe, then changes the working device from the hydraulic hammer to the backhoe, and then carries out the backhoe operation, thereby finally completing the dredging of the rocks. The method can not realize the integration of rock breaking, rock suction and rock transportation, is inconvenient to operate, and has lower production efficiency and higher production cost. The problems or shortcomings that mechanical automation difficulty is high when the blasting method is used for directly breaking rock, hard rock cannot be cut by using a common reamer, and a process of recovering broken rock is needed after the hydraulic hammer is used for directly breaking rock or other auxiliary rock breaking devices are used for breaking rock are solved.
Disclosure of Invention
The invention provides a saw blade-impact hammer combined rock breaking tool bit based on a multifunctional dredger, wherein a saw blade part is used for pre-breaking rock, namely, a rectangular groove is cut, the impact hammer part is used for impacting and breaking rock, and finally a cutter suction pump of the multifunctional dredger is used for sucking and transporting crushed rock and mud-water mixture generated by breaking rock through a pipeline part. The method can strengthen the rock breaking effect of the impact hammer, enrich the underwater rock breaking method, finally realize the integration of rock breaking, rock suction and rock transportation, and has great significance for the dredging industry and even the whole shipping industry.
The invention aims to solve the problems or defects that the mechanical automation difficulty is high when the blasting method is used for directly breaking rock, hard rock cannot be cut by using a common reamer, and a process of recovering broken rock is needed after the hydraulic hammer is used for directly breaking rock or other auxiliary rock breaking devices are used for breaking rock in the field of dredging and breaking rock and the rock breaking aspect of a dredger at present. A combined rock breaking bit structure and a use method thereof are provided.
The technical scheme is as follows:
a combined rock breaking tool bit structure comprises a saw blade device, an impact hammer device, a saw blade driving device, an impact hammer driving device, a box body, a pipeline and a connecting piece; the saw blade device, the impact hammer device, the saw blade driving device and the impact hammer driving device are arranged in the box body, the pipeline is arranged on the part of the box body, and the connecting piece is used for connecting the combined rock breaking tool bit and the working arm of the multifunctional dredger; the saw blade device and the saw blade driving device are arranged on the lower box body; . The impact hammer device and the impact hammer driving device are both arranged in the box body.
The saw blade device comprises a short-axis saw blade and a long-axis saw blade, wherein the short-axis saw blade and the long-axis saw blade have the same structure except for different axial lengths; the long shaft saw blade and the short shaft shoulder can be interchanged by increasing or shortening the length of the shaft;
the short-shaft saw blade comprises a short shaft, a bearing end cover, an elastic retainer ring for the shaft, a sealing felt, an inner oil retainer ring, an inner clamping cutter head, a diamond saw blade I, a middle sleeve cutter head, a diamond saw blade II, an outer clamping cutter head, a screw, a flat gasket and an elastic gasket; the short shaft is connected with the lower box body through a bearing end cover and an inner oil retainer ring, the bearing outer ring is fixed by the bearing end cover and the inner oil retainer ring, and sealing felts are arranged among the short shaft, the bearing end cover and the inner oil retainer ring for sealing; the left end of the inner clamping cutter disc abuts against the right end of the short shaft shoulder, the first diamond saw blade is attached to the right end of the inner clamping cutter disc, and the second diamond saw blade is clamped by the right end of the inner clamping cutter disc and the left end of the middle sleeve cutter disc; the diamond saw blade II is attached to the right end of the middle sleeve cutter head, the diamond saw blade II is clamped by the right end of the middle sleeve cutter head and the left end of the outer clamping cutter head, and then the outer clamping cutter head is fixed on the short shaft through the flat gasket, the elastic gasket and the screw.
The saw blade driving device comprises a motor, a fixing bolt and a diaphragm coupling; the saw blade structure is connected with the motor through the diaphragm coupling, and the motor is installed on the lower box body through the fixing bolt.
The impact hammer structure comprises an upper cylinder body, an impact piston, an oil seal, a middle cylinder body, a lower cylinder body, an inner bushing, a drill rod pin, an outer bushing, a through nut, a through bolt and a drill rod; the upper cylinder body, the middle cylinder body and the lower cylinder body are fixedly connected through a through nut and a through bolt; the upper cylinder body is provided with an air hole for filling nitrogen and impacting the upper part of the piston; the middle cylinder body is provided with a plurality of oil holes and is used for containing hydraulic oil and impacting the middle part of the piston; the lower cylinder body is provided with two drill rod pin holes for mounting the lower part of the impact piston and the upper part of the drill rod; oil seals are arranged between the impact piston and the upper cylinder body and between the impact piston and the middle cylinder body for sealing; an inner bushing and an outer bushing are arranged between the drill rod and the lower cylinder body to play a role in guiding, and a drill rod pin is arranged to play a role in positioning.
The impact hammer driving device comprises an impact hammer lifting oil cylinder, a piston rod, an end cover, a bottom plate, a screw, a bolt and a nut which are welded on an upper box body; the impact hammer lifting oil cylinder realizes the lifting motion of the impact hammer part through hydraulic pressure; the end cover and the upper box body are fixedly connected through screws, and the piston rod, the bottom plate and the impact hammer structure are fixedly connected through bolts and nuts; a T-shaped sliding block is welded on the bottom plate, and the sliding block is matched with a groove guide rail on the upper box body to bear radial impact.
The box body part comprises an upper box body, a lower box body, a side cover, a box body bolt and a box body nut; the upper box body, the lower box body and the side cover are fixedly connected through a plurality of side lugs and nuts, and the upper box body and the side cover are connected through two static load piston rods.
The pipeline part comprises a suction pipe, an eduction pipe, a valve and a three-way pipe; the suction pipe is fixedly connected to the upper box body and the lower box body through bolts, the eduction tube is fixedly connected with the valve through bolts and nuts, and the valves at the left end and the right end are fixedly connected to the left end and the right end of the three-way pipe respectively through bolt connection.
The valve comprises a valve body, a brake, a valve fitting, a valve nut and a valve bolt, wherein the brake is arranged in the valve body and the valve fitting, the valve body and the valve fitting are fixedly connected through the valve nut and the valve bolt, and the stop control of the pipeline part is realized through the lifting of the brake in the valve.
The connecting piece part comprises a connecting piece, a static load oil cylinder, a static load piston, a static load oil cylinder end cover, a screw and other parts; the T-shaped sliding block on the side cover is matched with a groove guide rail of the connecting piece to bear radial impact so as to prevent the static load oil cylinder part from deforming after being impacted radially, the static load piston rod is fixedly connected with the side cover and the upper box body through a bolt, and the end cover of the static load oil cylinder is fixed on the static load oil cylinder through a screw; the T-shaped sliding block on the side cover is matched with a groove guide rail of the connecting piece and the static load oil cylinder part realizes the feed motion of the combined rock breaking cutter head and provides static load perpendicular to a rock breaking surface for the combined rock breaking cutter head.
The connecting piece is hinged with the working arm of the multifunctional dredger through the connecting bolt and the connecting nut, and the rotation of the combined rock breaking tool bit is realized by controlling the oil cylinder on the working arm of the multifunctional dredger so as to adapt to rock breaking operations on different planes.
The use method of the combined rock breaking cutter head comprises the following steps:
the method comprises the following steps: after the multifunctional dredger is driven to a working area, power elements such as a motor and a hydraulic pump are started.
Step two: when the multifunctional dredger working arm swings rightwards, the whole combined rock breaking cutter head moves rightwards under the driving of the multifunctional dredger working arm; the impact hammer at the right end is lifted up and does not work, and the valve on the suction pipe at the right end is closed.
Step three: cutting the saw blade, wherein the saw blade cuts a rectangular groove; the left-end impact hammer lifting oil cylinder descends to enable the drill rod of the impact hammer to contact the rectangular notch, then the left-end impact hammer works to impact and break rock (the impact hammers at the left end and the right end respectively and integrally ascend and descend, but the impact piston inside each impact hammer is independently controlled so as to avoid the phenomenon that the impact hammer is 'idle-hit' when encountering uneven rock).
Step four: the valve on the left end suction pipe is opened, at the moment, under the suction force of the high-power suction pump, the rock which is just crushed is directly sucked away, and the rock moves leftwards, so that the rock suction efficiency is greatly improved.
Step five: after the semi-arc crushing operation is finished, the rock crushing radius can be adjusted by controlling the oil cylinder on the multifunctional dredger to carry out rock crushing operations with different radii, or the multifunctional dredger moves forward to a rock crushing unit to carry out rock crushing operations with equal radii, and finally the rock crushing operation of the whole area is realized.
Compared with the prior art, the invention has the following beneficial effects:
the invention pre-breaks rock through the saw blade part, namely cuts a rectangular groove, then uses the impact hammer part to impact and break rock, and finally uses the cutter suction pump of the multifunctional dredger to suck and transport the broken rock and the muddy water mixture generated by the rock breaking through the pipeline part. The method can strengthen the rock breaking effect of the impact hammer, enrich the underwater rock breaking method, finally realize the integration of rock breaking, rock suction and rock transportation, and has great significance for the dredging industry and even the whole shipping industry.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic structural view of the present invention (a schematic structural view of a piping portion);
FIG. 3 is a schematic view of the construction of the housing portion and connector portion of the present invention;
FIG. 4 is a schematic view of the construction of the saw blade assembly of the present invention;
FIG. 5 is a partial schematic view of the saw blade assembly of the present invention;
FIG. 6 is a schematic structural view of the impact hammer apparatus of the present invention;
FIG. 7 is a stepped cross-sectional view of the impact hammer apparatus of the present invention;
FIG. 8 is a rotary cross-sectional view of the impact hammer apparatus of the present invention;
FIG. 9 is a schematic view of the construction of the valve of the present invention;
fig. 10 is a schematic view of the present invention mounted on a working arm of a multi-function dredge.
In the figure: 1: saw blade device, 2: impact hammer device, 3: blade drive device, 4: impact hammer drive device, 5: a box body, 6: pipe, 7: connecting piece, 1-1: minor axis, 1-2: bearing, 1-3: bearing end cap, 1-4: circlip for shaft, 1-5: sealing felt, 1-6: inner oil deflector ring, 1-7: internal clamping cutter head, 1-8: 1-9 parts of a first diamond saw blade: middle sleeve cutter head, 1-10: a second diamond saw blade, 1-11 external clamping cutter head, 1-12: screw, 1-13: flat gasket, 1-14: elastic gasket, 3-1: motor, 3-2: fixing bolt, 3-3: diaphragm coupling, 2-1: upper cylinder body, 2-2: impact piston, 2-3: oil seal, 2-4: intermediate cylinder, 2-5: lower cylinder body, 2-6: inner liner, 2-7: a drill rod pin, 2-8: outer liner, 2-9: through nut, 2-10: through bolt, 2-11: drill rod, 4-1: impact hammer lift cylinder, 4-2: piston, 4-3: piston rod, 4-4: end cap, 4-5: bottom plate, 4-6: bolt, 4-7: nut, 5-1: an upper box body, 5-2: lower box body, 5-3: side cover, 5-4: box body bolt, 5-5: box nut, 6-1: straw, 6-2: an eduction tube, 6-3: valve, 6-31: valve body, 6-32: gate, 6-33: valve fittings, 6-34: valve nut, 6-35: valve bolt, 6-4: three-way pipe, 7-1: connecting piece, 7-2: static load oil cylinder, 7-3: dead load piston, 7-4: end cover of static load oil cylinder, 7-5: screw, 7-6: connecting bolt, 7-7: and connecting a nut.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-3, a combined rock breaking bit structure comprises a saw blade device 1, an impact hammer device 2, a saw blade driving device 3, an impact hammer driving device 4, a box body 5, a pipeline 6 and a connecting piece 7. The saw blade device 1, the impact hammer device 2, the saw blade driving device 3 and the impact hammer driving device 4 are arranged in the box body, the pipeline 6 is arranged on the box body part 5, and the connecting piece 7 is used for connecting the combined rock breaking tool bit and the working arm of the multifunctional dredger.
The saw blade device 1 and the saw blade driving device 3 are mounted on the lower case 5-2. The impact hammer device 2 and the impact hammer driving device 4 are both arranged in the box body.
As shown in fig. 4 to 5, the blade device 1 includes a short axis blade and a long axis blade, which have the same structure except for the different length of the axis; the long axis blade and the short axis shoulder can be interchanged by increasing or decreasing the length of the short axis.
The short-shaft saw blade comprises a short shaft 1-1, a bearing 1-2, a bearing end cover 1-3, a shaft elastic retainer ring 1-4, a sealing felt 1-5, an inner oil retainer ring 1-6, an inner clamping cutter 1-7, a diamond saw blade I1-8, a middle sleeve cutter 1-9, a diamond saw blade II 1-10, an outer clamping cutter 1-11, a screw 1-12, a flat gasket 1-13 and an elastic gasket 1-14. The short shaft 1-1 is connected with the lower box body 5-2 through a bearing end cover 1-3 and an inner oil retainer 1-6, a bearing outer ring is fixed by the bearing end cover 1-3 and the inner oil retainer 1-6, and sealing felts 1-5 are arranged between the short shaft 1-1 and the bearing end cover 1-3 and between the short shaft 1-1 and the inner oil retainer 1-6 for sealing. The left end of the inner cutter head 1-7 is propped against the right end of the shaft shoulder 1-1 of the short shaft, the diamond saw blade I1-8 is attached to the right end of the inner cutter head 1-7, and the diamond saw blade II 1-10 is clamped by the right end of the inner cutter head 1-7 and the left end of the middle sleeve cutter head 1-9. The diamond saw blade II 1-10 is attached to the right end of the middle sleeve cutter 1-9, the diamond saw blade II 1-10 is clamped by the right end of the middle sleeve cutter 1-9 and the left end of the outer clamping cutter 1-11, and the outer clamping cutter 1-11 is fixed on the short shaft 1-1 through the screws 1-12, the flat gaskets 1-13 and the elastic gaskets 1-14.
The saw blade driving device 3 comprises a motor 3-1, a fixing bolt 3-2, a diaphragm coupling 3-3 and other parts. The saw blade structure 1 is connected with a motor 3-1 through a diaphragm coupling 3-3, and the motor 3-1 is installed on a lower box body 5-2 through a fixing bolt 3-2.
As shown in fig. 6-8, the impact hammer device 2 comprises an upper cylinder 2-1, an impact piston 2-2, an oil seal 2-3, a middle cylinder 2-4, a lower cylinder 2-5, an inner bushing 2-6, a drill rod pin 2-7, an outer bushing 2-8, a through nut 2-9, a through bolt 2-10 and a drill rod 2-11, wherein the upper cylinder 2-1, the middle cylinder 2-4 and the lower cylinder 2-5 are fixedly connected through the through nut 2-9 and the through bolt 2-10. The upper cylinder body 2-1 is provided with an air hole and is mainly used for filling nitrogen and impacting the upper part of the piston 2-2; the middle cylinder body 2-4 is provided with five oil holes and is mainly used for containing hydraulic oil and impacting the middle part of the piston 2-2; the lower cylinder body 2-5 is provided with two drill rod pin holes and is mainly used for mounting the lower part of the impact piston 2-2 and the upper part of the drill rod 2-11. And oil seals 2-3 are arranged between the impact piston 2-2 and the upper cylinder body 2-1 and between the impact piston and the middle cylinder body 2-4 for sealing. An inner bushing 2-6 and an outer bushing 2-8 are arranged between the drill rod 2-11 and the lower cylinder body 2-5 to play a guiding role, and a drill rod pin 2-7 plays a positioning role. The drill rod pin 2-7 plays a role in hanging the drill rod 2-11 when the impact hammer is in a non-working state; when the impact normal work is carried out, the stress of the drill rod pin 2-7 is very small; when the impact hammer is in semi-idle driving, the drill rod pins 2-7 are greatly impacted, so that the semi-idle driving frequency is reduced as much as possible when the impact hammer is in use.
The impact hammer driving device 4 comprises an impact hammer lifting oil cylinder 4-1 welded on an upper box body 5-1, a piston 4-2, a piston rod 4-3, an end cover 4-5, a bottom plate 4-6, a bolt 4-7 and a nut 4-8. The impact hammer lifting cylinder 4-1 realizes the lifting motion of the impact hammer part 2 through hydraulic pressure (the impact hammers at the left end and the right end are respectively lifted integrally, but the impact piston in each impact hammer is controlled independently so as to avoid the phenomenon that the impact hammer is 'idle-hit' when encountering uneven rocks). The piston rod 4-3, the bottom plate 4-6 and the impact hammer part 2 are fixedly connected through a bolt 4-7 and a nut 4-8. A T-shaped sliding block is welded on the bottom plate 4-6 and matched with a groove guide rail on the upper box body 5-1 to bear radial impact so as to prevent the impact hammer lifting oil cylinder 4-1 from deforming after being impacted radially.
The box body part 5 comprises an upper box body 5-1, a lower box body 5-2, a side cover 5-3, a box body bolt 5-4 and a box body nut 5-5. The upper box body 5-1, the lower box body 5-2 and the side cover 5-3 are fixedly connected through a plurality of side lug upper box body bolts 5-4 and box body nuts 5-5, and the upper box body 5-1 and the side cover 5-3 are connected through two dead load pistons 7-3.
The pipeline 6 comprises a suction pipe 6-1, an outlet pipe 6-2, a valve 6-3 and a three-way pipe 6-4. The suction pipe 6-1 is fixedly connected with the upper box body 5-1 and the lower box body 5-2 through bolts, the suction pipe 6-1 and the valve 6-3 are fixedly connected through the eduction pipe 6-2 through bolts and nuts, and the valves 6-3 at the left end and the right end are fixedly connected with the left end and the right end of the three-way pipe 6-4 respectively through bolt connection. The valve 6-3 comprises a valve body 6-31, a brake 6-32, a valve fitting 6-33, a valve nut 6-34 and a valve bolt 6-35, and can realize the stop-go control of the pipeline part.
As shown in fig. 9, the valve includes a valve body, a gate, a valve fitting, a valve nut and a valve bolt, the gate is installed in the valve body and the valve fitting, the valve body and the valve fitting are fixedly connected by the valve nut and the valve bolt, and the gate is lifted in the valve to control the opening and closing of the pipe portion.
As shown in FIG. 10, the connecting piece 7 comprises a connecting piece 7-1, a static load oil cylinder 7-2, a static load piston 7-3, a static load oil cylinder end cover 7-4 and a screw 7-5. The T-shaped sliding block on the side cover 5-3 is matched with a groove guide rail of the connecting piece 7-1 to bear radial impact so as to prevent the static load oil cylinder 7-2 from deforming after radial impact, the static load piston 7-3 is fixedly connected with the side cover 5-3 and the upper box body 5-1 through bolts, and the end cover 7-4 of the static load oil cylinder is fixed on the static load oil cylinder through the bolts 7-5. The T-shaped sliding block on the side cover 5-3 is matched with the groove guide rail of the connecting piece 7-1 and the static load oil cylinder 7-2, so that the feeding motion of the combined rock breaking cutter head can be realized, the static load perpendicular to a rock breaking surface is provided for the combined rock breaking cutter head, the combined rock breaking cutter head can be perpendicular to the rock breaking surface all the time, and the rock breaking efficiency is greatly improved. The connecting piece 7-1 is hinged with the working arm of the multifunctional dredger through a connecting bolt 7-6 and a connecting nut 7-7, and the rotation of the combined rock breaking tool bit can be realized by controlling an oil cylinder on the working arm of the multifunctional dredger so as to adapt to rock breaking operations on different planes.
The use method of the combined rock breaking cutter head comprises the following steps:
the method comprises the following steps: after the multifunctional dredger is driven to a working area, power elements such as a motor and a hydraulic pump are started.
Step two: when the multifunctional dredger working arm swings rightwards, the whole combined rock breaking cutter head moves rightwards under the driving of the multifunctional dredger working arm; the impact hammer part 2 at the right end is lifted up and does not work, and the valve 6-3 on the suction pipe 6-1 at the right end is closed.
Step three: the static load oil cylinder 7-2 provides static load and enables the combined rock breaking tool bit to feed, the saw blade part 1 cuts, and after the saw blade cuts a rectangular groove; the lifting oil cylinder of the left-end impact hammer part 2 descends to enable the drill rod of the impact hammer to contact with the rectangular notch, and then the left-end impact hammer works to impact and break rock (the impact hammers at the left end and the right end respectively and integrally ascend and descend, but the impact piston inside each impact hammer is independently controlled so as to avoid the phenomenon that the impact hammer is 'idle-hit' when encountering uneven rock).
Step four: the valve 6-3 on the left end suction pipe 6-1 is opened, at the moment, under the suction force of the high-power suction pump, the rock which is just crushed is directly sucked away, and the rock moves leftwards, so that the rock suction efficiency is greatly improved.
Step five: after the semi-arc crushing operation is finished, the rock crushing radius can be adjusted by controlling the oil cylinder on the multifunctional dredger to carry out rock crushing operations with different radii, or the multifunctional dredger moves forward to a rock crushing unit to carry out rock crushing operations with equal radii, and finally the rock crushing operation of the whole area is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is to be accorded the broadest interpretation so as to encompass all such modifications and variations.
Claims (10)
1. A combined rock breaking tool bit structure is characterized by comprising a saw blade device, an impact hammer device, a saw blade driving device, an impact hammer driving device, a box body, a pipeline and a connecting piece; the saw blade device, the impact hammer device, the saw blade driving device and the impact hammer driving device are arranged in the box body, the pipeline is arranged on the part of the box body, and the connecting piece is used for connecting the combined rock breaking tool bit and the working arm of the multifunctional dredger; the saw blade device and the saw blade driving device are arranged on the lower box body; the impact hammer device and the impact hammer driving device are both arranged in the box body.
2. A rock breaking combined bit structure as claimed in claim 1, wherein the saw blade means includes a short axis saw blade and a long axis saw blade, the short axis saw blade and the long axis saw blade being identical except for the different axial lengths; the long shaft saw blade and the short shaft shoulder can be interchanged by increasing or shortening the length of the shaft;
the short-shaft saw blade comprises a short shaft, a bearing end cover, an elastic retainer ring for the shaft, a sealing felt, an inner oil retainer ring, an inner clamping cutter head, a diamond saw blade I, a middle sleeve cutter head, a diamond saw blade II, an outer clamping cutter head, a screw, a flat gasket and an elastic gasket; the short shaft is connected with the lower box body through a bearing end cover and an inner oil retainer ring, the bearing outer ring is fixed by the bearing end cover and the inner oil retainer ring, and sealing felts are arranged among the short shaft, the bearing end cover and the inner oil retainer ring for sealing; the left end of the inner clamping cutter disc abuts against the right end of the short shaft shoulder, the first diamond saw blade is attached to the right end of the inner clamping cutter disc, and the second diamond saw blade is clamped by the right end of the inner clamping cutter disc and the left end of the middle sleeve cutter disc; the diamond saw blade II is attached to the right end of the middle sleeve cutter head, the diamond saw blade II is clamped by the right end of the middle sleeve cutter head and the left end of the outer clamping cutter head, and then the outer clamping cutter head is fixed on the short shaft through the flat gasket, the elastic gasket and the screw.
3. A rock breaking bit structure as claimed in claim 1 wherein the saw blade drive means comprises a motor, a fixing bolt and a diaphragm coupling; the saw blade structure is connected with the motor through the diaphragm coupling, and the motor is installed on the lower box body through the fixing bolt.
4. A combined rock breaking bit structure according to claim 1, wherein the percussion hammer structure comprises an upper cylinder, a percussion piston, an oil seal, an intermediate cylinder, a lower cylinder, an inner bushing, a drill rod pin, an outer bushing, a through nut, a through bolt and a drill rod; the upper cylinder body, the middle cylinder body and the lower cylinder body are fixedly connected through a through nut and a through bolt; the upper cylinder body is provided with an air hole for filling nitrogen and impacting the upper part of the piston; the middle cylinder body is provided with a plurality of oil holes and is used for containing hydraulic oil and impacting the middle part of the piston; the lower cylinder body is provided with two drill rod pin holes for mounting the lower part of the impact piston and the upper part of the drill rod; oil seals are arranged between the impact piston and the upper cylinder body and between the impact piston and the middle cylinder body for sealing; an inner bushing and an outer bushing are arranged between the drill rod and the lower cylinder body to play a role in guiding, and a drill rod pin is arranged to play a role in positioning.
5. The combination rock-breaking bit structure of claim 1, wherein the percussion hammer driving device comprises a percussion hammer lift cylinder, a piston rod, an end cover, a bottom plate, a screw, a bolt and a nut which are welded on the upper box body; the impact hammer lifting oil cylinder realizes the lifting motion of the impact hammer part through hydraulic pressure; the end cover and the upper box body are fixedly connected through screws, and the piston rod, the bottom plate and the impact hammer structure are fixedly connected through bolts and nuts; a T-shaped sliding block is welded on the bottom plate, and the sliding block is matched with a groove guide rail on the upper box body to bear radial impact.
6. A combination rock breaking bit structure according to claim 1 wherein the box portion includes an upper box, a lower box, a side cover, a box bolt and a box nut; the upper box body, the lower box body and the side cover are fixedly connected through a plurality of side lugs and nuts, and the upper box body and the side cover are connected through two static load piston rods.
7. A combination rock breaking bit structure as claimed in claim 1 wherein the pipe section includes a suction pipe, an outlet pipe, a valve and a tee; the suction pipe is fixedly connected to the upper box body and the lower box body through bolts, the eduction tube is fixedly connected with the valve through bolts and nuts, and the valves at the left end and the right end are fixedly connected to the left end and the right end of the three-way pipe respectively through bolt connection.
8. A combined rock breaking bit structure according to claim 7, wherein the valve comprises a valve body, a brake, a valve fitting, a valve nut and a valve bolt, the brake is arranged in the valve body and the valve fitting, the valve body and the valve fitting are fixedly connected through the valve nut and the valve bolt, and the brake is lifted in the valve to realize the open-stop control of the pipeline part.
9. The combination rock-breaking bit structure of claim 1, wherein the connector portion comprises a connector, a static oil cylinder, a static piston, a static oil cylinder end cap, a screw and the like; the T-shaped sliding block on the side cover is matched with a groove guide rail of the connecting piece to bear radial impact so as to prevent the static load oil cylinder part from deforming after being impacted radially, the static load piston rod is fixedly connected with the side cover and the upper box body through a bolt, and the end cover of the static load oil cylinder is fixed on the static load oil cylinder through a screw; the T-shaped sliding block on the side cover is matched with a groove guide rail of the connecting piece and the static load oil cylinder part realizes the feed motion of the combined rock breaking cutter head and provides static load perpendicular to a rock breaking surface for the combined rock breaking cutter head.
10. The combined rock-breaking cutter head structure and the using method thereof as claimed in claim 9, wherein the connecting piece is hinged with the working arm of the multifunctional dredge through a connecting bolt and a connecting nut, and the rotation of the combined rock-breaking cutter head is realized by controlling the oil cylinder on the working arm of the multifunctional dredge so as to adapt to the rock-breaking operation of different planes.
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| CN114250840A (en) * | 2021-12-15 | 2022-03-29 | 中国葛洲坝集团第一工程有限公司 | Strong weathering mudstone deep cutting slope drainage structure, construction method and construction device |
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| CN112064709B (en) | 2022-06-24 |
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