CN222161413U - Silt dredging reamer head assembly for excavator - Google Patents

Abstract

The sludge dredging reamer head assembly comprises a connecting seat, wherein the lower end of the connecting seat is fixedly connected with a protective shell, a driving motor is installed in the protective shell, a reamer shaft is installed at the output end of the driving motor, a jet flow protection barrel is detachably connected to the lower end of the protective shell, a reamer is installed on the reamer shaft, at least one jet flow nozzle is arranged on the outer wall of the jet flow protection barrel along the circumferential direction and connected with a high-pressure water inlet pipe through a jet pipe, and a slurry suction pipe extending out of the jet flow protection barrel is arranged in the jet flow protection barrel. The assembly can be installed on the digging arm of the excavator, and is provided with high-pressure jet flushing and negative-pressure sludge sucking. This design not only improves dredging efficiency, but also enables the excavator to operate in a variety of complex environments, including confined water areas and shallow water areas.

Description

Silt dredging reamer head assembly for excavator

Technical Field

The utility model belongs to the technical field of dredging tools in water conservancy construction, and particularly relates to a silt dredging reamer head assembly for an excavator.

Background

Dredging work is indispensable in water conservancy construction of river channels, ports, hydraulic engineering and the like. Traditional dredging methods rely mainly on reamer heads for underwater dredging. The reamer head is generally toothed, and is driven by a hydraulic motor or a motor to cut underwater silt and sand. However, this approach is limited in its operational scenario because the reamer head is typically mounted on a cutter suction dredger, requiring construction in a relatively wide area of water, difficult to access in narrow areas, and also requires a depth of water that must be met for the vessel to draft. In addition, dredging using a bucket also has problems of low productivity efficiency and high construction cost.

In order to solve the problems, the utility model provides a novel reamer assembly,

Disclosure of utility model

Aiming at the problems existing in the prior art, the utility model provides the assembly which can be installed on the digging arm of the excavator and is simultaneously provided with high-pressure jet flushing and negative-pressure sludge sucking. This design not only improves dredging efficiency, but also enables the excavator to operate in a variety of complex environments, including confined water areas and shallow water areas.

The sludge dredging reamer head assembly is mounted at the front end of a boom arm of an excavator and connected with a piston rod of a bucket cylinder of the excavator, and is characterized by comprising a connecting seat, wherein the lower end of the connecting seat is fixedly connected with a protective shell, a suspension bracket is mounted in the protective shell, a driving motor is mounted on the suspension bracket, a reamer shaft is mounted at the output end of the driving motor, the center of the reamer shaft and the center of the protective shell are located on the same axis, a jet flow protective cylinder is detachably connected to the lower end of the protective shell, the reamer shaft extends out of the lower end face of the jet flow protective cylinder, a reamer is mounted on the reamer shaft, at least one jet flow nozzle is arranged on the outer wall of the jet flow protective cylinder along the circumferential direction and is connected with a high-pressure water inlet pipe, the outer diameter of the jet flow pipe is smaller than that of the high-pressure water inlet pipe, a first flange is arranged at the end part of the high-pressure water inlet pipe, a suction pipe is arranged in the protective cylinder, the lower end of the suction pipe extends to the lower end of the jet flow protective cylinder, and the lower end of the suction pipe is not exposed out of the suction pipe, and the lower end of the suction pipe is arranged at the upper end of the suction pipe.

Preferably, the protecting shell comprises an upper shell fixedly connected with the connecting seat, a lower shell positioned outside the driving motor and a middle shell connected between the upper shell and the lower shell, wherein the outer diameter of the middle shell is smaller than that of the upper shell and the lower shell, the middle shell is in transitional connection with the upper shell and the lower shell through conical jackets, rib plates are welded on the outer circumference of the middle shell along the circumferential direction, and two ends of each rib plate are welded with the corresponding conical jackets into a whole.

Preferably, the rib plate is provided with a lifting hole.

Preferably, the middle shell and/or the lower shell are/is provided with pressure relief holes.

Preferably, a filter screen is arranged at the lower end of the jet flow casing.

Preferably, an overflow hole is arranged above the filter screen at the lower end of the jet flow casing.

The utility model has the advantages and technical effects that:

The silt dredging reamer head assembly for the excavator has the innovation points of combining various advanced functions and designs, and realizing efficient, stable and suitable dredging operation in various complex environments. Through the design of connecting seat, protecting crust and suspension frame, the assembly has compact stable structure, can adapt to different operation environment. The protective shell provides protection for the internal components, and the hanging frame can flexibly adjust the position of the reamer head so as to better adapt to the requirements of excavating operation. In addition, the assembly also has jet protection and high-pressure jet flushing functions, and the high-pressure water flow flushes underwater silt, so that the concentration of mud is reduced, and the mud extraction efficiency is improved. Meanwhile, due to the design of the mud suction pipe, the mud can be sucked in a negative pressure mode, and the efficient cleaning mode improves the operation efficiency. In addition, the structural strength and stability of the assembly are enhanced by the optimized design of the protective shell, so that the assembly can bear impact and vibration in a severe working environment. The design of the filter screen and the overflow hole protects key components and improves the reliability and the service life of the system.

Finally, the assembly is also provided with a separated design, so that the slurry pump and the clean water pump can be arranged at a position far away from the dredged field, and the scene adaptability and the safety of the device are improved. In a word, the technical scheme has remarkable advantages in the aspects of improving dredging efficiency, reducing operation difficulty and protecting environment, and has good practicability and market prospect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a bottom view of the present utility model;

FIG. 4 is a schematic diagram of a drive motor mounting structure;

fig. 5 is a schematic view of the mounting structure of the present utility model.

The device comprises a connecting seat, 20, a protective shell, 21, an upper shell, 22, a lower shell, 23, a middle shell, 24, a conical sheath, 25, a rib plate, 251, a lifting hole, 26, a pressure relief hole, 30, a suspension bracket, 40, a driving motor, 401, a cutter shaft, 50, a jet flow casing, 51, a flow passing hole, 60, a cutter, 61, a cutter rotating disc, 62, a cutter mounting blade, 63, a cutter tooth, 64, a cutter reinforcing blade, 70, a jet flow nozzle, 71, a jet pipe, 72, a high-pressure water inlet pipe, 73, a first flange, 80, a slurry suction pipe, 81, a second flange, 90, a filter screen, 100, a slurry pump, 110 and a clean water pump.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 5, a reamer head assembly for dredging sludge on an excavator is mounted at the front end of an arm rod of the excavator and is connected with a piston rod of a bucket cylinder of the excavator, and the angle of the reamer head assembly cutting into the sludge is adjusted under the driving of the bucket cylinder; the high-pressure slurry pump comprises a connecting seat 10, wherein the connecting seat is formed by welding two parallel metal plates and a bottom plate, a fixed sheet is welded between the two metal plates in a welding mode, connecting holes hinged with a bucket rod of an excavating arm and a piston rod of a bucket cylinder are correspondingly formed in the upper parts of the two metal plates, a protective shell 20 is fixedly connected to the lower end of the connecting seat in a flange connection mode or a welding structure, a suspension bracket 30 is arranged in the protective shell, the upper end of the suspension bracket is fixedly connected with the connecting seat, a driving motor 40 is arranged at the lower end of the suspension bracket, a cutter shaft 401 is arranged at the output end of the driving motor, the center of the cutter shaft and the center of the protective shell are positioned at the same axis, a jet flow protection drum 50 is detachably connected to the lower end of the protective shell, the lower end of the cutter shaft is in threaded connection or flange connection, the maintenance and installation of the driving motor are facilitated, a lower end face of the jet flow protection drum is arranged on the cutter shaft, a jet flow protection drum 60 is arranged on the cutter shaft, at least one jet flow protection drum is provided with a jet flow protection drum 70 along the circumferential direction, a high-pressure water inlet pipe is connected with a high-pressure water inlet pipe (a high-pressure water pipe) is connected with a high-pressure water inlet pipe (a pump) and a high-pressure pipe) is connected with a high-pressure pipe (a high-pressure pipe) is provided with a high pressure pipe (a pump) 72), the lower extreme of mud suction pipe extends to the lower extreme of jet protection section of thick bamboo, and does not expose the lower terminal surface of jet protection section of thick bamboo, the outer wall of jet protection section of thick bamboo 50 is extended to the upper end of mud suction pipe, installs the second flange 81 at the tip of mud suction pipe, and the second flange links to each other with the mud pipe, and the mud pipe is connected to the mud pump.

Preferably, the reamer 60 includes a disc-type reamer rotating disc 61, the bottom of which is connected with 5 reamer mounting blades 62 by welding, each reamer mounting blade is disposed at a certain angle, the reamer mounting blades are centrally and symmetrically arranged, 6 reamer teeth 63 are disposed on each reamer mounting blade, and the reamer teeth and the reamer mounting blades are connected by welding, so that the purpose of the arrangement is to facilitate timely replacement after the reamer teeth are worn.

The reamer reinforcing blades 64 arranged on the adjacent reamer mounting blades are surrounded to form a pentagonal structure, so that the 5 reamer mounting blades are fixed at equal intervals, the relative positions of the reamer mounting blades are not changed in the rotary cutting process, and the reamer mounting blades are not easy to deform.

Preferably, the protecting shell 20 comprises an upper shell 21 fixedly connected with the connecting seat, a lower shell 22 positioned outside the driving motor, and a middle shell 23 connected between the upper shell and the lower shell, wherein the outer diameter of the middle shell is smaller than that of the upper shell and the lower shell, the middle shell is in transitional connection with the upper shell and the lower shell through a conical sheath 24, a rib plate 25 is welded on the outer circumference of the middle shell along the circumferential direction, and two ends of the rib plate are respectively welded with the corresponding conical sheaths into a whole.

Preferably, the rib plate 25 is provided with a lifting hole 251. The lifting holes are rectangular through holes, and are formed in each rib plate, so that the purpose of the arrangement is to facilitate lifting operation when the reamer head device is installed.

Preferably, the middle shell and/or the lower shell are provided with pressure relief holes 26.

Preferably, a filter screen 90 is installed at the lower end of the jet flow casing, and the filter screen is a metal grid.

Preferably, an overflow hole 51 (the overflow hole is preferably in an inverted U-shaped structure) is arranged above the filter screen at the lower end of the jet flow casing.

The technical scheme has the following advantages of detailed analysis:

1. The design of the connecting seat, the protective shell and the suspension bracket ensures that the assembly has compact and stable structure. The connecting seat provides a reliable installation foundation, the protective shell provides protection for the internal components, and the hanging frame can flexibly adjust the position of the reamer head so as to adapt to different working environments. The stability and adaptability of the assembly are enhanced, so that the assembly can work in various complex environments, including narrow water areas and shallow water areas.

2. The jet flow pile casing and the high-pressure jet flow flushing function are that the jet flow pipe is connected with the high-pressure water inlet pipe, so that the high-pressure jet flow flushing can be performed on the underwater silt, the hydraulic flushing can be performed on harder soil by using high-pressure clear water while the mud is sucked, meanwhile, the water quantity at the reamer is increased, the mud concentration is reduced, and the mud is more easily pumped by a mud pump. The design uses high-pressure clean water to hydraulically wash harder soil, so that the concentration of the slurry is reduced, and the extraction efficiency of the slurry is improved. Meanwhile, the high-pressure clean water can also clean the reamer, so that the reamer is prevented from being blocked. The dredging efficiency is improved, the disturbance of the excavator to soil is reduced, and the influence of the operation on the surrounding environment is reduced. The dredging efficiency is improved, the influence of the operation on the surrounding environment is reduced, and the excavator can operate in various complex environments.

3. The mud suction pipe and the negative pressure suction function are that the mud suction pipe is designed to suck the mud in a negative pressure mode, and compared with a traditional excavator bucket, the mud suction pipe is more efficient and can quickly clean a large amount of mud. Meanwhile, due to the special design of the mud suction pipe, the mud suction pipe can work under the condition that the lower end face of the jet flow casing is not exposed, and the safety and convenience of operation are improved. The dredging efficiency is improved, the safety and convenience of operation are improved, and the excavator can work in various complex environments.

4. The protective shell comprises an upper shell, a lower shell and a middle shell, and the design provides good structural strength and stability. The addition of the conical sheath and the rib plates further enhances the overall rigidity of the protective shell, so that the protective shell can bear impact and vibration in a severe operation environment. In addition, the pressure relief holes in the intermediate housing can effectively relieve internal pressure, preventing the housing from cracking in extreme cases. The design enhances the structural strength and stability of the assembly, so that the assembly can bear impact and vibration in a severe working environment, and the reliability and the service life of the assembly are improved.

5. The filter screen and the overflow hole at the lower end of the jet protection cylinder are designed, and the filter screen can prevent massive objects from entering the jet pipe and the mud suction pipe, so that the components are protected from damage. The design of the overflow holes can ensure smooth water flow, reduce the resistance of water flow and improve the jet effect. The design protects key components such as the jet pipe, the mud suction pipe and the like from damage, and improves the reliability and the service life of the system. Meanwhile, the jet effect is improved due to the design of the overflow holes, and the dredging efficiency is further improved.

6. The device can be arranged on the digging arm of an amphibious digging machine and a backhoe, performs dredging construction in a position where a cutter suction dredger is difficult to enter, and expands the application scene. It can also dredge narrow water area, slot, cavity and pipeline under the drive of excavator bucket rod. The design expands the application scene of the device, so that the device can perform dredging construction in the area which is difficult to enter by the cutter suction dredger. Meanwhile, the device can dredge narrow water areas, grooves, chambers and pipelines, and the practicability and flexibility of the device are improved.

7. The separated design of the silt dredging reamer head device arranged on the dredging arm is that the slurry pump, the clean water pump and the dredging main body are mechanically separated, the sludge dredging reamer head device can be arranged at a position far away from a dredging field, the position arrangement is flexible, and the scene adaptability is strong. The mud discharging port can be flexibly arranged, is easy to move and has the characteristics of safety and environmental protection. This design improves the scene adaptability and safety of the device. The mud pump and the clean water pump can be arranged at a position far away from the dredged field, so that the influence of noise and pollution is reduced. Meanwhile, the sludge discharge ports can be flexibly arranged and are easy to move, so that the operation efficiency and flexibility are improved. The device has the advantages of stable structure, simple and convenient operation, high efficiency, and good practicability and market prospect.

Application example 1 of the present utility model:

The driving motor rotates under the condition of electrifying, drives the reamer rotating shaft to rotate at the same angular speed, so that the reamer rotates, the reamer cuts after contacting soil, the reamer rotates to generate cutting force to stir sediment movement at the bottom of a river, sediment and water are mixed, the cut mud (mortar) enters the jet flow protection barrel after passing through the filter screen, is conveyed to the mud pump 100 through the mud suction pipe and the mud conveying pipeline, and is discharged to a mud storage field through the mud nozzle.

In the embodiment 2 of the utility model, at least one jet nozzle is arranged on the outer wall of the jet protection barrel along the circumferential direction, the jet nozzle is connected with a high-pressure water inlet pipe through a jet pipe, and the outer diameter of the jet pipe is smaller than that of the high-pressure water inlet pipe

In the dredging process, the clear water pump 110 is started to convey clear water to the clear water injection high-pressure water inlet pipe in a pumping and pressurizing mode, the high-pressure water inlet pipe is used for lifting injection pressure through the jet pipe, clear water is sprayed out through the jet nozzle, the high-pressure clear water jet cuts dredging substrate sludge contacted by the reamer, the crushing efficiency is improved, the concentration of mud near the reamer is reduced during cutting, and mud can enter the jet protection barrel through the filter screen 95 more easily, and then enters the mud suction pipe.

Working scene:

The method comprises the steps that under dredging is needed for a certain agricultural paddy field ditch, a paddy field is arranged around, a cutter suction dredger is difficult to enter, the reamer is arranged on a bucket rod of an amphibious excavator, an original bucket is replaced, the ditch dredging is carried out by using the reamer head, a clear water pump, a slurry pump and a slurry nozzle are arranged on a ridge, clear water is injected into a high-pressure water inlet pipe through the clear water pump, and dredging bottom mud is discharged to a mud discharge field through a slurry suction pipe.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (6)

1. The sludge dredging reamer head assembly is arranged at the front end of a boom arm of an excavator and is connected with a piston rod of a bucket cylinder of the excavator, and is characterized by comprising a connecting seat, wherein the lower end of the connecting seat is fixedly connected with a protective shell, a suspension bracket is arranged in the protective shell, a driving motor is arranged on the suspension bracket, a reamer shaft is arranged at the output end of the driving motor, the center of the reamer shaft and the center of the protective shell are positioned on the same axis, a jet flow protective cylinder is detachably connected to the lower end of the protective shell, the reamer shaft extends out of the lower end face of the jet flow protective cylinder, a reamer is arranged on the reamer shaft, at least one jet flow nozzle is arranged on the outer wall of the jet flow protective cylinder along the circumferential direction, the jet flow nozzle is connected with a high-pressure water inlet pipe through a jet pipe, the outer diameter of the jet flow pipe is smaller than that of the high-pressure water inlet pipe, a first flange is arranged at the end part of the high-pressure water inlet pipe, a suction pipe is arranged in the jet flow protective cylinder, the lower end of the mud extends to the lower end of the jet flow protective cylinder, the jet flow protective cylinder is not exposed out of the jet flow cylinder, and the lower end of the jet flow protective cylinder is not exposed out of the suction pipe, and the upper end of the suction pipe is provided with a second flange.

2. The sludge dredging reamer head assembly for the excavator according to claim 1, wherein the protective shell comprises an upper shell fixedly connected with the connecting seat, a lower shell positioned on the outer side of the driving motor and a middle shell connected between the upper shell and the lower shell, the outer diameter of the middle shell is smaller than that of the upper shell and the lower shell, the middle shell is in transitional connection with the upper shell and the lower shell through conical jackets, rib plates are welded on the outer circumference of the middle shell along the circumferential direction, and two ends of each rib plate are welded with the corresponding conical jackets into a whole.

3. The dredging reamer head assembly for the sludge on the excavator according to claim 2, wherein the rib plates are provided with lifting holes.

4. A silt dredging reamer head assembly for an excavator according to claim 2 wherein the intermediate housing and/or the lower housing is provided with a pressure relief aperture.

5. The sludge dredging reamer head assembly for an excavator according to claim 1, wherein a filter screen is arranged at the lower end of the jet flow casing.

6. The sludge dredging reamer head assembly for the excavator according to claim 5, wherein the upper part of the filter screen at the lower end of the jet flow protective cylinder is provided with an overflow hole.