CN111011319A

CN111011319A - Sea cowry digger

Info

Publication number: CN111011319A
Application number: CN201911181919.4A
Authority: CN
Inventors: 管伯青
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-04-17

Abstract

The invention provides a seashell digging machine, and belongs to the technical field of shellfish collecting equipment. It has solved the problem that current shellfish collection efficiency is low. The seashell excavating machine comprises a main shaft, an excavating head assembly and a wheel plate, wherein a plurality of excavating teeth are sequentially arranged along the circumferential direction on the outer circumference of the wheel plate, the outer ends of the excavating teeth are bent along the forward direction to form hook parts, tooth sockets are arranged between every two adjacent excavating teeth, and a shaft hole is formed in the center of the wheel plate; the wheel plates are provided with a plurality of excavating tooth rows, the excavating tooth rows are formed in the axial direction of the main shaft, tooth groove rows are arranged between the adjacent excavating tooth rows, the main shaft penetrates through a plurality of shaft holes, and the wheel plates and the main shaft rotate synchronously. The structure obviously improves the shellfish collecting efficiency and reduces the shellfish digging cost.

Description

Sea cowry digger

Technical Field

The invention belongs to the technical field of shellfish collection equipment, and relates to a shellfish digging machine.

Background

Various shellfish which are bred along the beach in China at present are important components of seafood in China, the demand of market seashells is increased along with the continuous improvement of living standard of people, but the shellfish harvest on the beach is all captured manually in various places, the shellfish is captured by the beach according to tidal water time, the actual operation time is short, the operation is inconvenient, the operation is heavy and labor is dirty and tired, the current young people are reluctant to carry out the beach painting operation, the operation on the beach painting operation is mostly performed by old people who are healthy and experienced over fifty years old, the efficiency of manually carrying out the seashell painting and digging the shellfish is low, the labor cost is high, the shellfish accounts for more than 50% of the breeding cost, the labor cost is particularly expensive in busy seasons, and the problem of difficult labor is also existed. In rainy and snowy days and frozen days, the operations of catching shellfish in the upper sea and the lower sea cannot be referred to, the market consumption price is high, and the development of the beach shellfish aquaculture industry is greatly restricted.

In order to improve the seashell collection efficiency, the current chinese patent network discloses a shellfish digging device [ grant publication No.: CN105052850U, which comprises a boat-shaped body, wherein the body is provided with a power mechanism, the bottom of the body is provided with a crawler traveling mechanism, the front part of the body is provided with a digging bin and a storage bin, the bottom of the digging bin is open, a digging wheel is arranged in the digging bin, the digging wheel is provided with a horizontal wheel shaft, the digging wheel rotates by taking the wheel shaft as a shaft, the rotating direction is opposite to the advancing direction of the body, and the bottom of the digging wheel extends downwards into silt from the opening at the bottom of the digging bin to dig shellfish; the digging wheel comprises two vertical flat plates fixed on a wheel shaft, the wheel shaft vertically penetrates through the centers of the vertical flat plates, a plurality of rectangular flat plates are arranged between the vertical flat plates, the rectangular flat plates are sequentially connected end to end around the wheel shaft, the distance between the center of the inner surface of each rectangular flat plate and the axial lead of the wheel shaft is equal, the rectangular flat plates are fixedly connected with the vertical flat plates, the tail end of each rectangular flat plate is provided with a row of claw nails which are distributed at equal intervals, the back surfaces of the claw nails are tangent to the outer surface of the other rectangular flat plate connected with the tail end of the rectangular flat plate, the front ends of the claw nails are bent, and the.

When the shellfish excavating device works, when the body is coated on a beach to move, the rotation direction of the excavating wheel is opposite to the proceeding direction of the body, the bent claw nails extend into the space below the sediment, and the shellfish in the sediment is excavated out along with the rotation of the excavating wheel, so the shellfish excavating device has the following defects: 1. the excavated shellfish falls on the rectangular flat plate, although partial silt flows out from gaps between the claw nails in the excavating process, most silt brought out by the excavated shellfish and the shellfish are mixed and piled on the rectangular flat plate, and along with the rotation of the excavating wheel, when the rectangular flat plate begins to incline, the shellfish and the silt slide down to the conveying device from the rectangular flat plate together under the action of self gravity, so that the conveying device is all a mixture of the shellfish and the silt, and the shellfish also needs to be manually sorted out from the silt, thereby not only having certain labor intensity, but also ensuring that the shellfish excavating efficiency is not high; 2. a large amount of mixture of silt and shellfish is accumulated on the rectangular flat plate, so that the weight of the excavating wheel is obviously increased, the burden of the excavating wheel during rotation is increased, the oil consumption of the excavator during working is greatly increased, and the cost for excavating the shellfish is increased; 3. the conveying device for conveying the shellfish comprises a first spiral conveyor and a second spiral conveyor which are arranged in an excavating bin, the shellfish on an excavating wheel is poured into the excavating bin, the first spiral conveyor conveys the shellfish in the horizontal direction to enable the shellfish to be conveyed to one end of the first spiral conveyor, the second spiral conveyor conveys the shellfish conveyed by the first spiral conveyor upwards into a storage bin, the first spiral conveyor and the second spiral conveyor are vertically arranged, the shellfish is easily extruded at the joint between the first spiral conveyor and the second spiral conveyor to cause the shellfish to be extruded and crushed, and when the mixture of silt and shellfish on the excavating wheel is poured into the excavating bin, the spiral conveyor is blocked for a while due to more silt in the mixture, so the shellfish cannot be normally conveyed; 4. and in the process of digging shellfish on the beach painting by the digging wheel, silt on the beach painting blocks the rectangular flat plate, the digging depth depends on the linear distance between the claw nails and the rectangular flat plate, and when the digging depth is greater than the linear distance between the claw nails and the rectangular flat plate, the digging wheel cannot rotate.

Disclosure of Invention

The invention aims to provide a seashell mining and excavating machine aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to improve the shellfish digging efficiency and digging depth and reduce the shellfish digging cost.

The purpose of the invention can be realized by the following technical scheme:

a seashell digging machine comprises a machine body, a traveling mechanism arranged on the machine body, a first power mechanism arranged on the machine body and used for driving the traveling mechanism to move, a digging head assembly arranged at the front end of the machine body, a conveying mechanism arranged on the machine body and located at the rear side of the digging head assembly, and a second power mechanism used for driving the digging head assembly to rotate, and is characterized in that the digging head assembly comprises a main shaft and a wheel plate, the main shaft is arranged on the machine body, a plurality of digging teeth arranged along the circumferential direction are arranged on the outer circumference of the wheel plate, the outer ends of the digging teeth are bent along the forward direction and form hook parts, tooth grooves are arranged between every two adjacent digging teeth, and a shaft hole is formed in the center of the wheel plate; the wheel plates are arranged along the axial direction of the main shaft, gaps are formed between every two adjacent wheel plates, a plurality of excavating tooth rows are formed on the excavating teeth along the axial direction of the main shaft, tooth groove rows are formed between every two adjacent excavating tooth rows, the main shaft penetrates through a plurality of shaft holes, and all the wheel plates are fixedly connected with the main shaft.

The working principle of the seashell digging machine is as follows: the first power mechanism drives the traveling mechanism to move so as to drive the machine body to move on the beach painting, meanwhile, the second power mechanism drives the digging head assembly to rotate, the main shaft rotates to drive all the wheel plates to rotate, each digging tooth row penetrates into the beach through the hook part, and along with the rotation of the digging head assembly, silt and shellfish are carried out together after each digging tooth row is exposed out of the beach, and the silt and the shellfish are located in corresponding gullet rows.

Firstly, in the working process of the excavating wheel in the prior art, the excavated shellfish falls on the rectangular flat plate, although partial silt flows out from gaps between the claw nails in the excavating process, most silt and shellfish brought out by the excavated shellfish are mixed and piled on the rectangular flat plate, and along with the rotation of the excavating wheel, when the rectangular flat plate begins to incline, the shellfish and the silt slide down to the conveying device from the rectangular flat plate together under the action of self gravity, so that the conveying device is all a mixture of the shellfish and the silt, the shellfish also needs to be manually sorted out from the silt, and the excavating wheel not only has certain labor intensity, but also has low shellfish excavating efficiency; in the process of excavating the shellfish by circumferentially rotating the excavating head assembly, most of silt in the shellfish and silt mixture in the gullet rows leaks downwards from the gap between the wheel plate and the wheel plate under the action of self gravity and falls back to the beach for coating, and the shellfish cannot leak downwards from the gap between the wheel plate and the wheel plate due to large volume, so that most of silt is separated before the shellfish is transferred to the conveying belt mechanism, and the silt and the shellfish can slide to the conveying belt mechanism from the corresponding gullet rows along with the rotation of the excavating head assembly, and at the moment, the silt on the conveying belt mechanism is less, so that the sorting of the subsequent shellfish is convenient, and the shellfish sorting efficiency is improved.

Secondly, in the shellfish excavating process of the excavating wheel in the prior art, when a large amount of silt and shellfish mixtures are accumulated on the rectangular flat plate, the weight of the excavating wheel is obviously increased, the burden of the excavating wheel during rotation is increased, the oil consumption of the excavator during working is greatly increased, and the shellfish excavating cost is improved; in addition, the shellfish on the conveying mechanism carries less silt, so that the phenomenon that the conveying mechanism is blocked can be avoided.

Finally, in the process of digging shellfish on the beach painting by the digging wheel in the prior art, silt on the beach painting can block the rectangular flat plate, the digging depth depends on the linear distance between the claw nail and the rectangular flat plate, and when the digging depth is greater than the linear distance between the claw nail and the rectangular flat plate, the digging wheel can not rotate; in the excavating head assembly, gaps are formed between the wheel plates, and silt on the beach painting can be squeezed into the gaps between the wheel plates in the process of excavating the shellfish by the excavating head assembly, so that the blocking effect of the silt on the beach painting on the excavating head assembly is reduced, the excavating head assembly can be embedded into the silt to a certain depth, and the excavating depth of the shellfish is improved.

In the seashell excavating machine, one side edge of the excavating tooth comprises a slant edge and a first arc edge, the other side edge of the excavating tooth is a second arc edge, and the second arc edge is sunken towards the direction of the slant edge; the second arc edge, the inclined edge and the first arc edge on two adjacent digging teeth are sequentially connected to form the tooth groove. Through the arrangement of the structure, after the digging tooth row is pierced into the mudflat, the circular arc edge II plays a role in blocking, the digging tooth row is guaranteed to be capable of shoveling shellfish from the mudflat, so that the shellfish is positioned in the corresponding tooth socket row, the inclined edge and the circular arc edge play a role in guiding together along with the rotation of the digging head assembly, the shellfish can slide downwards to the conveying belt mechanism along the inclined edge and the circular arc edge, and the shellfish slides outwards from the corresponding tooth socket row and is transferred to the conveying belt mechanism.

In the seashell excavating machine, each excavating tooth row is provided with a reinforcing rod, the reinforcing rods are arranged along the axial direction of the main shaft, and the reinforcing rods are fixedly connected with all hook parts in the row of excavating tooth rows. Through the arrangement of the structure, the reinforcing rod connects all the excavating teeth in the excavating tooth row together, so that all the hook parts on the excavating tooth row form a whole, the structural strength of the excavating tooth is improved, the condition that the single excavating tooth is bent and deformed after penetrating into a mud flat is avoided, and the service life of the excavating tooth is prolonged.

In the seashell excavating machine, the inner side wall of the hook part is provided with a clamping groove, the reinforcing rod is embedded in the clamping groove, and the reinforcing rod is fixed with the hook part. Through the setting of this structure, at the in-process of excavating the shellfish, hook portion pierces the mud flat at first, and hook portion belongs to the position that easily takes place to deform, carries out the structure to hook portion after stiffener and the welding of portion of colluding and strengthens, avoids hook portion to take place deformation, and the stiffener is at the welded in-process moreover, and the draw-in groove plays the effect of location to the locating position of stiffener, has improved stiffener welded convenience.

In the seashell excavating machine, each hook part is provided with a lightening hole. Through the setting of this structure, further reduce the weight of wheel board, and then reduced the weight of digging head assembly, the drive that power unit two of being convenient for can be easier is excavated head assembly stability, reduces the seashell and adopts the oil consumption of digging the machine, reduces the seashell and excavates the cost.

In the seashell excavating machine, the two ends of the main shaft are provided with side plates, a plurality of wheel plates are positioned between the two side plates, mounting holes are formed in the wheel plates corresponding to each excavating tooth, a plurality of rows of mounting holes are formed in all the mounting holes along the axial direction of the main shaft, a rotating shaft is arranged in each row of mounting holes, the two ends of each rotating shaft penetrate through the corresponding side plates, and a deflector rod with one end connected with the rotating shaft is arranged in a gap between every two adjacent wheel plates; and a transmission assembly which can drive the rotating shaft to rotate and enable the shifting rod to swing outwards when the main shaft rotates is arranged between the machine body and the side plate. . Through the setting of this structure, when shellfish and silt were located corresponding tooth's socket and arrange, along with excavating the head assembly and rotate, transmission assembly drove the pivot and rotates and then make the epaxial driving lever of commentaries on classics outwards swing for the driving lever stirs shellfish and silt in corresponding tooth's socket row, helps silt to spill from the clearance between wheel board and the wheel board, further improves the separation effect of silt and shellfish at excavating the head assembly.

In foretell seashell adopts and digs machine, be provided with driven gear on the outer end that transmission assembly includes every pivot, one side of this driven gear is provided with the driving gear of rotation connection on the curb plate, driving gear and driven gear meshing, have the stalk portion along the radial setting of driving gear on the driving gear, be fixed with the back bumping post on the organism, the back bumping post is located the back top of main shaft, and when the main shaft rotated, the back bumping post can lean on and make the driving lever outwards swing with stalk portion counterbalance, be provided with on the driving gear and make the driving lever pivoted torsional spring inwards. Through the arrangement of the structure, in an initial state, under the action of a torsion spring, the driving gear rotates towards one side and drives the rotating shaft to rotate towards one side through the driven gear, so that the deflector rod on the rotating shaft rotates inwards, along with the rotation of the excavating head assembly, when the handle part abuts against the rear retaining column, shellfish in one row of tooth grooves on the excavating head assembly has the tendency of sliding downwards to the conveying belt mechanism, the rear retaining column abuts against the handle part and then rotates along with the rotation of the excavating head assembly, so that the handle part overcomes the acting force of the torsion spring to rotate, the driven gear and the rotating shaft are driven to rotate, the deflector rod on the rotating shaft rotates outwards, and the deflector rod deflects the shellfish in the tooth groove row outwards, so that the shellfish in the tooth groove row can be ensured to smoothly fall onto the conveying belt mechanism, and the shellfish is prevented from being clamped between gaps of two wheel plates; along with the rotation of digging head assembly, after stalk portion and back bumping post separation, the driving gear is under the effect of torsional spring, and the driving gear rotates to one side and drives the pivot through driven gear and rotate to one side for the epaxial driving lever of commentaries on classics rotates inwards and resets.

In the seashell excavating machine, the machine body is fixed with the front retaining column which is positioned at the front upper part of the main shaft, and when the main shaft rotates, the front retaining column can abut against the handle part and enable the deflector rod to swing outwards. Through the setting of this structure, when current bumping post and stalk portion counterbalance lean on, one of them tooth's socket row just moves to the top position of digging head assembly this moment, preceding bumping post makes the stalk portion overcome the effort of torsional spring and takes place to rotate along with the rotation of digging head assembly after the stalk portion counterbalance, and then drive driven gear and pivot rotation, make the epaxial driving lever of changeing rotate outwards, the driving lever outwards dials the shellfish in a tooth's socket row, shellfish and the silt in arranging this tooth's socket stir, make silt leak to the beach from the clearance between wheel board and the wheel board on, just realize effectual separation with silt and shellfish on digging head assembly, also avoid the shellfish card between the clearance of two wheel boards simultaneously.

In the seashell excavating machine, the outer peripheral surface of the rotating shaft is provided with a through threaded hole, the inner end of the driving lever is in threaded connection with the threaded hole, and the end faces of the inner end and the outer end of the driving lever are provided with inner hexagonal counter bores. Through the setting of this structure, during the driving lever installation, the one end of hexagonal spanner is inserted in the interior hexagonal counter bore of driving lever outer end, rotates the driving lever through hexagonal spanner and makes the inner spiro union of driving lever in the threaded hole, because the interior tip of driving lever takes place the rupture easily, when the interior tip of driving lever takes place the rupture back, the driving lever can remain in the screw hole, can insert the inner hexagonal counter bore of driving lever inner with the one end of hexagonal spanner this moment, conveniently will remain the driving lever in the screw hole and unload from the screw hole.

In the seashell excavating machine, the outer side of each side plate is provided with a gear seat sleeved on the main shaft, the gear seats are linked with the main shaft, the two gear seats are connected through a fastening connecting rod II and are tightly pressed on the side plates, the driving gear is provided with a convex block arranged along the radial direction, the peripheral surface of each gear seat is provided with a plurality of limiting bosses, and the limiting bosses are in one-to-one correspondence with the convex blocks; when the shifting lever swings inwards, the convex block can be abutted against the corresponding limiting boss. Through the arrangement of the structure, when the driving gear rotates to one side to reset under the action of the torsion spring, the convex block abuts against the limiting boss, so that the driving gear is limited to continue to rotate towards one side of the limiting boss, and the shifting lever rotates to reset in place.

In foretell seashell adopts and digs machine, the outer end of gear seat has the gear chamber, the step has been seted up to the interior border of the outer terminal surface of gear seat, the outside that is located the step in the gear chamber is provided with the apron, be fixed with the stopper that the outside removed of restriction apron on the outer terminal surface of gear seat, the through-hole has been seted up on the apron, power unit two includes ring gear, gear and hydraulic motor, the ring gear is fixed on the inner peripheral surface in gear chamber, the gear is located the gear chamber and meshes mutually with the ring gear, hydraulic motor fixes on the organism and hydraulic motor's output shaft wears to establish in the through-hole and links firmly with the gear. Through the setting of this structure, hydraulic motor drive gear rotates and then drives the ring gear and rotate, it rotates to drive the pinion stand after the ring gear rotates, the pinion stand drives the main shaft and rotates, the main shaft drives all wheel boards and curb plate and rotates, the apron is located between step and the stopper, hydraulic motor's output shaft wears to establish the structure in the through-hole and makes the pinion stand cover not take place to rotate at the pivoted in-process, the relative apron of pinion stand rotates, the apron seals the gear chamber, avoid outside silt to enter into the gear intracavity to make ring gear and the dead condition of gear card.

In the seashell excavating machine, the number of the limiting blocks is at least three, and all the limiting blocks are arranged along the circumferential direction of the outer end face of the gear seat; the stopper includes base and shrouding, the installation cavity has been seted up on the lateral wall of base, set up the opening of intercommunication installation cavity on the inside wall of base, be provided with the roller bearing in the installation cavity, be provided with the bearing on the roller bearing, the part of bearing passes the opening and stretches out the installation cavity, the outer peripheral face of bearing pastes with mutually of apron and leans on, the shrouding is fixed on the base and seals the installation cavity, be provided with the spring between shrouding and the roller bearing. Through the setting of this structure, gear seat pivoted in-process, the apron is motionless, and the relative apron of gear seat rotates, and the bearing of the structure that the outer peripheral face of bearing and apron contacted rolls on the apron, and the setting of spring then guarantees that the outer peripheral face of bearing offsets with the apron all the time and leans on, reduces the frictional force between stopper and the apron, avoids stopper and apron to take place along the condition of wearing and tearing.

In the seashell excavating machine, the conveying mechanism comprises a first net chain conveying belt and a second net chain conveying belt which are arranged on the machine body, the first net chain conveying belt is located at the rear lower part of the excavating head assembly and is arranged along the axial direction of the excavating head assembly, the first net chain conveying belt is located at one side of the second net chain conveying belt and is arranged along the direction perpendicular to the second net chain conveying belt, and one end of the second net chain conveying belt is located above the first net chain conveying belt. Through the arrangement of the structure, the shellfish on the excavating head assembly firstly slides on the net chain conveying belt II, the net chain conveying belt II conveys the shellfish on the net chain conveying belt II in the direction of the net chain conveying belt, the shellfish on the net chain conveying belt II falls on the net chain conveying belt I, the net chain conveying belt I conveys the shellfish to the tail end of the body, the net chain conveying belt is of a porous structure and has larger friction force, silt can leak from the pores on the net chain conveying belt I and the net chain conveying belt II in the shellfish conveying process, the shellfish has larger friction force to ensure that the shellfish can be stably conveyed, and the conveying mechanism can not cause the shellfish to be crushed in the shellfish conveying process, the completeness of the shellfish can be ensured, the situation that the net chain conveying belt is blocked can not occur, and the continuous normal conveying of the shellfish can be ensured.

In the seashell digging machine, the first net chain conveying belt and the second net chain conveying belt are both provided with two belt chains, the two belt chains are located on the same straight line direction, one belt chain conveying belt is located on the left side of the machine body, the other belt chain conveying belt is located on the right side of the machine body, one belt chain conveying belt is used for conveying seashells to the left side of the machine body, and the other belt chain conveying belt is used for conveying seashells to the right side of the machine body. Through the arrangement of the structure, shellfish on the excavating head assembly firstly slides onto the two net chain conveying belts II, one net chain conveying belt II conveys the shellfish on the net chain conveying belt II to the net chain conveying belt I on the left side, the other net chain conveying belt II conveys the shellfish on the net chain conveying belt II on the right side, the two net chain conveying belts I both convey the shellfish backwards, the conveying direction of the two net chain conveying belts I is opposite to the advancing direction of the shellfish excavating machine, the conveying mechanism with the structure realizes the quick conveying of the shellfish, the conveying efficiency of the shellfish is greatly improved, and the problem that the shellfish is stacked on the conveying mechanism is avoided.

In foretell seashell mining machine, this seashell mining machine is still including being located the mounting bracket on organism front end left and right sides, the both ends of main shaft all set up on the mounting bracket, conveying mechanism still includes the support frame, net chain conveyer belt two is installed on the support frame, the support frame passes through the crossbeam and is connected with the mounting bracket, the left and right sides of organism front end all sets up the pneumatic cylinder that the drive mounting bracket goes up and down. Because coastal shellfish culture and temperature difference in various regions and the depth of various shellfish culture are different, through the arrangement of the structure, the hydraulic cylinder drives the mounting frame to lift, so that the digging depth of the digging head assembly is adjusted, and meanwhile, when the excavator runs on land, the digging head assembly can be lifted to a certain height, so that the digging head assembly is prevented from colliding with the ground; in addition, the supporting frame and the mounting frame are connected into a whole through the cross beam, the supporting frame is synchronously lifted in the lifting process of the mounting frame, and then the net chain conveying belt II is synchronously lifted along with the digging head assembly, so that the relative position between the net chain conveying belt II and the digging head assembly is inconvenient in the lifting process of the digging head assembly, and shellfish on the digging head assembly can be stably slid onto the net chain conveying belt II.

In the seashell excavating machine, a buffer spring is arranged between the upper end of a piston rod of the hydraulic cylinder and the mounting frame, and the lower end of the buffer spring is connected to the upper end of the piston rod of the hydraulic cylinder, and the upper end of the buffer spring is connected to the mounting frame. Through the arrangement of the structure, the digging head assembly abuts against the beach in the process of digging shellfish, and when the digging head assembly touches hard objects, the arrangement of the buffer spring enables the digging head assembly to have a space floating up and down, thereby playing a role in protecting the digging head assembly.

In the seashell excavating machine, the rear end of the first net chain conveying belt is tilted upwards to form an inclined lifting section. Through the setting of this structure, the setting of promotion section makes silt on the net chain conveyer belt one further leak down from net chain conveyer belt one, and net chain conveyer belt one has great frictional force and guarantees that the shellfish can be by stable upwards carrying.

In foretell seashell adopts digger, a plurality of wheel board and two curb plates pass through fastening connecting rod one and connect, all have the sleeve of cover on fastening connecting rod one between the adjacent wheel board and between wheel board and the curb plate, telescopic both ends respectively with corresponding wheel board counterbalance lean on, all wheel boards and all sleeves compress tightly each other. Through the setting of this structure, the shellfish is avoided leaking from the both ends of excavating the head assembly in the setting of curb plate, all round boards are guaranteed that the shellfish is located corresponding one row of tooth's socket at the pivoted in-process, the fastening connection pole one links together two curb plates and all round boards, and between sleeve and the round board, all compress tightly each other between sleeve and the curb plate, make two curb plates and all round boards form a whole, improve the stability of round board at the shellfish in-process of excavating, and telescopic setting then guarantees between curb plate and the round board, there is the clearance between round board and the round board.

In the seashell excavating machine, the inner diameter of the shaft hole is larger than the outer diameter of the main shaft, so that a hollow structure is formed inside the excavating head assembly. The structure that the internal diameter in shaft hole is greater than the external diameter of main shaft makes the center department of wheel board hollowed by a large scale, and the center department of every wheel board is hollowed by a large scale and is made and excavate the inside hollow structure that is of head assembly, falls into the inside back of excavating head assembly when silt, along with excavating the rotation of head assembly, is favorable to silt to send all sides eight directions to spill outward, improves the efficiency that spills of silt.

In foretell seashell adopts digs machine, be provided with bearing structure between two at least wheel boards and the main shaft, bearing structure includes collar and a plurality of radials, the collar is established on the main shaft to the collar cover, is provided with the cover between the adjacent collar and establishes the spacer sleeve on the main shaft, and the both ends of spacer sleeve offset respectively with corresponding collar and lean on, and the circumference setting of collar is followed to a plurality of radials to the one end and collar fixed connection, the other end and the wheel board fixed connection of radials. Through the setting of this structure, because all wheel boards form wholly through fastening connecting rod one, and the setting of collar and radials then plays the effect of supporting to the whole that all wheel boards formed, guarantees the overall structure stability that all wheel boards formed, and then guarantees the operation that the whole that all wheel boards formed can be stable, spacer sleeve and collar compress tightly each other, the setting of spacer sleeve plays the effect of location to the collar, avoid the collar to follow the axial displacement of main shaft on the main shaft.

Compared with the prior art, the seashell mining machine has the following advantages:

1. when the shellfish sorting device is used, the main shaft rotates to drive all the wheel plates to rotate, the digging tooth rows penetrate into a beach through the hook parts, each digging tooth row exposes out of the beach and carries out silt and shellfish together with the rotation of the wheel plates, the silt and the shellfish are located in the corresponding gullet rows, and most of the silt leaks downwards from gaps between the wheel plates under the action of self gravity and falls back to the beach during the rotation of all the wheel plates, and the shellfish cannot leak downwards from the gaps between the wheel plates due to large volume, so that the separation of most of the silt of the shellfish is finished before the transfer, the shellfish sorting is convenient for subsequent shellfish, and the shellfish sorting effect is improved.

2. In the rotation process of all the wheel plates, most of silt on the excavating head assembly falls back to the beach for coating, so that the bearing burden of the wheel plates in the rotation process is greatly reduced, the oil consumption of the excavator in the working process is reduced, and the shellfish excavating cost is further reduced.

3. In the excavating head assembly, the gaps are formed between the wheel plates, and in the process of excavating the shellfish, silt on the beach painting can be squeezed into the gaps between the wheel plates, so that the blocking effect of the silt on the beach painting on the excavating head assembly is reduced, the excavating head assembly can be embedded into the silt to a certain depth, and the excavating depth of the shellfish is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is one of the schematic perspective views of the digging head assembly of the present invention.

FIG. 3 is a schematic perspective view of the wheel plate of the present invention having a web thereon.

Fig. 4 is a partial perspective view of the digging head assembly of the present invention.

Figure 5 is a schematic cross-sectional view of the digging head assembly of the present invention.

Fig. 6 is an enlarged schematic view of a portion a in fig. 5.

Fig. 7 is a schematic sectional structure view of the swing link and the rotating shaft of the present invention.

Fig. 8 is a second perspective view of the digging head assembly of the present invention.

Figure 9 is one of the exploded structural schematic views of the digging head assembly of the present invention.

Figure 10 is a second schematic exploded view of the digging head assembly of the present invention.

Fig. 11 is a schematic perspective view of the stopper of the present invention.

Fig. 12 is an exploded perspective view of the stopper of the present invention.

Fig. 13 is a partial perspective view of the present invention.

Fig. 14 is an enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a machine body; 2. a traveling mechanism; 3. a first power mechanism; 4. an excavating head assembly; 40. A main shaft; 41. a wheel plate; 411. digging teeth; 411a, a hook portion; 411b, oblique edges; 411c, a first arc edge; 411d, a circular arc edge II; 411e, card slot; 412. a tooth socket; 413. a shaft hole; 414. lightening holes; 415. a mounting ring; 416. a web; 417. mounting holes; 42. a reinforcing bar; 43. a side plate; 44. fastening the first connecting rod; 45. a sleeve; 46. a spacer sleeve; 47. a rotating shaft; 471. a threaded hole; 48. a deflector rod; 481. an inner hexagonal counter bore; 49. a driving gear; 491. a handle; 492. a bump; 401. a driven gear; 402. a gear seat; 402a, a limit boss; 402b, a gear cavity; 402c, a step; 403. a cover plate; 403a, a through hole; 404. a limiting block; 4041. a base; 4041a, a mounting cavity; 4041b, through port; 4042. closing the plate; 4043. a roller; 4044. a bearing; 4045. A spring; 405. fastening a second connecting rod; 5. a conveying mechanism; 51. a first net chain conveying belt; 51a, a lifting section; 52. a second net chain conveying belt; 53. a support frame; 54. a cross beam; 6. a second power mechanism; 61. a ring gear; 62. a gear; 63. a hydraulic motor; 7. a mounting frame; 8. a rear fender post; 9. a front fender post; 10. a hydraulic cylinder; 10a, a piston rod; 11. a guide seat; 12. a guide bar; 13. a buffer spring; 14. excavating a tooth row; 15. tooth socket rows; 16. a gap; 17. a torsion spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1, the seashell digging machine comprises a machine body 1, a traveling mechanism 2, a first power mechanism 3, a digging head assembly 4, a conveying mechanism 5 and a second power mechanism 6, wherein the traveling mechanism 2 is a crawler traveling mechanism, the first power mechanism 3 and the first power mechanism 3 are hydraulic pumps.

As shown in fig. 2 and 3, the excavating head assembly 4 includes a wheel plate 41, a plurality of excavating teeth 411 arranged along the circumferential direction are arranged on the outer circumference of the wheel plate 41, the outer ends of all the excavating teeth 411 are bent toward the same side to form a hook portion 411a, a tooth space 412 is arranged between every two adjacent excavating teeth 411, an axial hole 413 is formed in the center of the wheel plate 41, one side of each excavating tooth 411 includes an inclined side 411b and a first arc side 411c, the other side of each excavating tooth 411 is a second arc side 411d, the second arc side 411d is recessed toward the inclined side 411b, and the second arc side 411d, the inclined side 411b and the first arc side 411c on two adjacent excavating teeth 411 are sequentially connected to form the tooth space 412.

As shown in fig. 2 to 6, the excavating head assembly 4 further includes a main shaft 40, the seashell excavating machine further includes a mounting frame 7 located on the left and right sides of the front end of the machine body 1, both ends of the main shaft 40 are disposed on the mounting frame 7, the wheel plates 41 have a plurality of rows and are arranged along the axial direction of the main shaft 40, a gap 16 is provided between adjacent wheel plates 41, all the excavating teeth 411 on all the wheel plates 41 are formed with a plurality of rows of excavating tooth rows 14 along the axial direction of the main shaft 40, a tooth space row 15 is provided between adjacent excavating tooth rows 14, the main shaft 40 is disposed in a plurality of shaft holes 413 in a penetrating manner, both ends of the main shaft 40 are provided with side plates 43, the side plates 43 are connected with the main shaft 1 through flat keys, the plurality of wheel plates 41 are located between two side plates 43, the plurality of wheel plates 41 are connected with two side plates 43 through a fastening connecting rod one 44, sleeves 45 are disposed between adjacent wheel plates 41 and between the wheel plates, the two ends of the sleeve 45 respectively abut against the corresponding wheel plates 41, and all the wheel plates 41 and all the sleeves 45 are pressed against each other, so that a gap is formed between the adjacent wheel plates 41, and a gap is also formed between the wheel plates 41 and the side plates 43. The outer side of each side plate 43 is provided with a gear seat 402 sleeved on the main shaft 40, the gear seats 402 are connected with the main shaft 40 through flat keys, the two gear seats 402 are connected through a fastening connecting rod II 405, the gear seats 402 are tightly pressed on the side plates 43, the outer ends of the gear seats 402 are provided with gear cavities 402b, the power mechanism II 6 comprises a gear ring 61, a gear 62 and a hydraulic motor 63, the gear ring 61 is fixed on the inner circumferential surface of the gear cavity 402b, the gear 62 is located in the gear cavity 402b and is meshed with the gear ring 61, the hydraulic motor 63 is fixed on the mounting frame 7, and the output shaft gear 62 of the hydraulic motor 63 is fixedly connected. When the shellfish sorting device is used, the hydraulic motor 63 drives the gear 62 to rotate so as to drive the gear ring 61 and the gear seat 402 to rotate, the gear seat 402 drives the main shaft 40 to rotate, the main shaft 40 drives the side plates 43 and all the wheel plates 41 to rotate synchronously, the digging tooth row 14 penetrates into a beach through the hook portions 411a, along with the rotation of the wheel plates 41, the digging tooth row 14 exposes out the beach and carries out silt and shellfish together, the silt and shellfish are positioned in the corresponding gullet rows 15, most of silt leaks downwards from the gaps between the wheel plates 41 and the wheel plates 41 under the action of self gravity and falls back to the beach in the rotating process of all the wheel plates 41, and the shellfish cannot leak downwards from the gaps between the wheel plates 41 and the wheel plates 41 due to large volume, so that most of silt is separated before the shellfish is transferred to the conveying mechanism 5, the subsequent shellfish sorting is convenient, and the subsequent shellfish sorting efficiency is improved, with the rotation of the digging head assembly 4, the shellfish in the gullet row 15 sequentially falls into the conveying mechanism 5; in the rotation process of all the wheel plates 41, most of silt on the excavating head assembly 4 falls back to the beach to be coated, the bearing burden of the excavating head assembly 4 in the rotation process is greatly reduced, the hydraulic motor 63 drives the excavating head assembly 4 more easily, the oil consumption of the excavator in the working process is reduced, the shellfish excavating cost is reduced, and under the power output of the hydraulic motor 63, the excavating head assembly 4 rotates very slowly in the shellfish excavating process and can rotate at about 7-10 revolutions per minute.

As shown in fig. 3, a reinforcing bar 42 is provided at each excavating tooth row 14, the reinforcing bar 42 is provided along the axial direction of the main shaft 40, and the reinforcing bar 42 is fixedly connected with all the hook portions 411a in the excavating tooth row 14, in this embodiment, the inside wall of the hook portion 411a has a slot 411e, the reinforcing bar 42 is embedded in the slot 411e, and the reinforcing bar 42 is welded with the hook portion 411 a.

As shown in fig. 3 and 4, each hook portion 411a is provided with a lightening hole 414, the inner diameter of the shaft hole 413 is larger than the outer diameter of the main shaft 40, the size design of the lightening holes 213 and the shaft hole 413 is such that the weight of the wheel plate 41 is reduced, the weight of the whole excavating head assembly 4 is reduced, the hydraulic oil pump 63 drives the excavating head assembly 4 more easily, the oil consumption of the excavator during operation is reduced, in addition, the large diameter design of the shaft hole 23 enables the interior of the excavating head assembly 4 to be in a hollow state, and after silt falls into the interior of the excavating head assembly 4, the silt is beneficial to leaking from all directions along with the rotation of the wheel plate 2, so that the leaking efficiency of the silt is improved; wherein a supporting structure is arranged between at least two wheel plates 41 and the main shaft 40, the supporting structure comprises mounting rings 415 and a plurality of radial plates 416, the mounting rings 415 are sleeved on the main shaft 40, a spacing sleeve 46 sleeved on the main shaft 40 is arranged between adjacent mounting rings 415, two ends of the spacing sleeve 46 are respectively abutted against the corresponding mounting rings 415, the plurality of radial plates 416 are arranged along the circumferential direction of the mounting rings 415, and the one end and the collar 415 fixed connection of radials 416, the other end and wheel plate 41 fixed connection, all wheel plates 41 form a whole, the inside that the head assembly 4 was excavated is the hollow state for the large aperture design of shaft hole 23, easy deformation takes place when excavating the head assembly 4 and excavates, the setting of radials 416 and collar 415 then the whole of all wheel plates 41 formation play the effect of supporting, guarantee that the head assembly 4 is digging in-process stable in structure, non-deformable.

As shown in fig. 3 to 9, a mounting hole 417 is formed in each wheel plate 41 corresponding to each digging tooth 411, a plurality of rows of mounting holes 417 are formed in all the mounting holes 417 along the axial direction of the spindle 40, a rotating shaft 47 is arranged in each row of mounting holes 417, two ends of each rotating shaft 47 penetrate through the corresponding side plate 43, a shift lever 48 with one end connected with the rotating shaft 47 is arranged in a gap between adjacent wheel plates 41, a plurality of rows of shift levers 48 are arranged on the digging head assembly 4 along the circumferential direction, the plurality of rows of shift levers 48 correspond to the plurality of rows of tooth grooves 412 one by one, in this embodiment, a through threaded hole 471 is formed in the outer circumferential surface of the rotating shaft 47, the inner end of the shift lever 48 is screwed into the threaded hole 471, and an inner hexagonal counterbore 481 is formed in the end surface of the inner end and. A transmission assembly which can drive the rotating shafts 47 to rotate and enable the deflector rods 48 to swing outwards when the main shaft 40 rotates is arranged between the mounting frame 7 and the side plates 43, the transmission assembly comprises a driven gear 401 arranged at the outer end of each rotating shaft 47, a driving gear 49 rotationally connected to the side plates 43 is arranged at one side of the driven gear 401, the driving gear 49 is meshed with the driven gear 401, a handle 491 is arranged on the driving gear 49 along the radial direction, a front catch column 9 and a rear catch column 8 are fixed on the mounting frame 7, the front catch column 9 is arranged at the front upper part of the main shaft 40, the rear catch column 8 is arranged at the rear upper part of the main shaft 40, both the front catch column 9 and the rear catch column 8 can be abutted against the handle 491, a lug 492 arranged along the radial direction is arranged on the driving gear 49, a plurality of limiting bosses 402a are arranged on the outer circumferential surface of the gear seat 402, the limiting bosses 402a are in one-to-, the drive gear 49 is provided with a torsion spring 17. In the process that the seashell excavating machine advances on the beach coating, the rotation direction of the excavating head assembly 4 is opposite to the advancing direction of the seashell excavating machine, the excavating head assembly 4 rotates backwards, the handle 491 on the driving gear 49 firstly abuts against the front retaining column 9, the front retaining column 9 enables the handle 491 to rotate towards the front side, so that the driving gear 49 rotates forwards, the driving gear 49 drives the driven gear 401 to rotate backwards, the driven gear 401 drives the rotating shaft 40 to rotate backwards, so that all the deflector rods 48 on the rotating shaft 40 are driven to rotate outwards, at the moment, the gullet rows 15 corresponding to the deflector rods 48 are positioned at the top of the excavating head assembly 4, all the deflector rods 48 rotate outwards to stir the shellfish and silt in the gullet rows 15, so that the silt can leak from the gap between the wheel plate 41 and the wheel plate 41, the separation of the silt and the shellfish is further improved, after the front retaining column 9 is separated from the handle 491, the driving gear 49 rotates backwards under the action of the torsion spring 17, and then drives the driven gear 401 to rotate forwards, so that the rotating shaft 47 rotates forwards, and then drives the shift lever 48 to rotate inwards to reset, so that the convex block 492 abuts against the corresponding limiting boss 402a, and the shift lever 48 resets in place; then the handle 491 on the driving gear 49 abuts against the rear catch 8, the rear catch 8 makes the handle 491 rotate forward, and further makes the driving gear 49 rotate forward, the driving gear 49 drives the driven gear 401 to rotate backward, the driven gear 401 drives the rotating shaft 47 to rotate backward, and further drives all the poking rods 48 on the rotating shaft 47 to rotate outward, at this time, a row of tooth sockets 412 corresponding to the poking rods 48 is located at the rear side of the digging head assembly 4, and the shellfish in the row of tooth sockets 412 has a tendency to slide out of the tooth sockets 412, all the poking rods 48 rotate outward to poke the shellfish in the row of tooth sockets 412, so that the shellfish slides down to the conveying mechanism 5 from the row of tooth sockets 412, and the shellfish is prevented from being stuck in the gap between the wheel plate 41 and the wheel plate 41, in addition, the remaining silt can leak down from the gap between the wheel plate 41 and the wheel plate 41, similarly, after the rear catch 8 is separated from the handle 491, pinion gear 19 causes an inward rotation of toggle lever 48 to return under the action of torsion spring 17.

As shown in fig. 2, 10, 11 and 12, a step 402c is formed on an inner edge of an outer end surface of the gear seat 402, a cover plate 403 is disposed on an outer side of the step 402c in the gear cavity 402b, at least three limiting blocks 404 are fixed on the outer end surface of the gear seat 402 to limit the cover plate 403 to move outward, and all the limiting blocks 404 are disposed along a circumferential direction of the outer end surface of the gear seat 402; the limiting block 404 comprises a base 4041 and a sealing plate 4042, an installation cavity 4041a is formed in the outer side wall of the base 4041, a through hole 4041b communicated with the installation cavity 4041a is formed in the inner side wall of the base 4041, a roller 4043 is arranged in the installation cavity 4041a, a bearing 4044 is arranged on the roller 4043, a part of the bearing 4044 penetrates through the through hole 4041b and extends out of the installation cavity 4041a, the peripheral surface of the bearing 4044 abuts against the cover plate 403, the sealing plate 4042 is fixed on the base 4041 and seals the installation cavity 4041a, and a spring 4045 is arranged between the sealing plate 4042 and the roller 4043; the cover plate 403 is provided with a through hole 403a, and the output shaft of the hydraulic motor 63 is inserted into the through hole 403 a.

As shown in fig. 1, 13 and 14, the conveying mechanism 5 includes two net chain conveying belts 51 arranged on the machine body 1 along the front-back direction and two net chain conveying belts 52 arranged on the machine body 1 along the left-right direction, the rear ends of the net chain conveying belts 51 are tilted upwards to form an inclined lifting section 51a, the two net chain conveying belts 52 are both positioned at the rear side of the digging head assembly 4, and the two net chain conveying belts 52 are positioned in the same straight direction, shellfish on the digging head assembly 4 firstly slide down onto the two net chain conveying belts 52, one net chain conveying belt 52 conveys shellfish thereon to the net chain conveying belt 51 at the left side, the other net chain conveying belt 52 conveys shellfish thereon to the net chain conveying belt 51 at the right side, the two net chain conveying belts 51 both convey shellfish backwards, the conveying direction of the two net chain conveying belts 51 is opposite to the advancing direction of the shellfish sea mining machine, the conveying mechanism with the structure can realize the quick conveying of the seashells, greatly improve the conveying efficiency of the seashells and avoid the problem of accumulation of the seashells on the conveying mechanism; in addition, when the shellfish is transferred to the net chain conveyor belt I51 from the digging head assembly 4, part of silt can fall on the net chain conveyor belt I51, the net chain conveyor belt is of a porous structure and has large friction force, and in the shellfish transportation process of the net chain conveyor belt I51 and the net chain conveyor belt II 52, the silt can leak from the pores on the net chain conveyor belt I51 and the net chain conveyor belt II 52, so that the silt and the shellfish can be separated in the transportation process. Conveying mechanism 5 still includes support frame 53, two 52 of net chain conveyer belt are installed on support frame 53, support frame 53 passes through crossbeam 54 and is connected with mounting bracket 7, the left and right sides of 1 front end of organism all sets up the pneumatic cylinder 10 that drive mounting bracket 7 goes up and down, be provided with buffer spring 13 between the upper end of the piston rod 10a of pneumatic cylinder 10 and the mounting bracket 7, the upper end at the piston rod 10a of pneumatic cylinder 10 is connected to buffer spring 13 lower extreme, the upper end is connected on mounting bracket 7, the left and right sides of 1 front end of organism still is equipped with guide holder 11, it is provided with guide bar 12 to slide on the guide holder 11, the upper end and the mounting bracket 7 fixed connection. The support frame 53 and the mounting frame 7 are connected through the cross beam 54 to form a whole, the support frame 53 also synchronously ascends and descends in the ascending and descending process of the mounting frame 7, and then the net chain conveyor belt II 52 is also synchronously ascended and descended along with the excavating head assembly 4, so that the relative position between the net chain conveyor belt II 52 and the excavating head assembly 4 is inconvenient in the ascending and descending process of the excavating head assembly, and shellfish on the excavating head assembly 4 can stably slide onto the net chain conveyor belt II 52.

The seashell excavating machine takes a diesel engine as a power source, a traveling mechanism 2, a net chain conveyor belt I51, a net chain conveyor belt II 52 and an excavating head assembly 4 are respectively matched with a set of hydraulic power assembly, and the diesel engine outputs power and converts the power into hydraulic power for respectively driving the traveling mechanism 2, the net chain conveyor belt I51, the net chain conveyor belt II 52 and the excavating head assembly 4 to move.

Example 2

This embodiment is substantially the same as embodiment 1 described above, except that: in the embodiment, all the wheel plates 41 are directly sleeved on the main shaft 40, each wheel plate 41 is connected with the main shaft 40 through a flat key, and the hydraulic motor 63 directly drives the main shaft 40 to rotate.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A seashell digging machine comprises a machine body (1), a traveling mechanism (2) arranged on the machine body (1), a first power mechanism (3) arranged on the machine body (1) and used for driving the traveling mechanism (2) to move, a digging head assembly (4) arranged at the front end of the machine body (1), a conveying mechanism (5) arranged on the machine body (1) and located on the rear side of the digging head assembly (4) and a second power mechanism (6) used for driving the digging head assembly (4) to rotate, and is characterized in that the digging head assembly (4) comprises a main shaft (40) and a wheel plate (41), the main shaft (40) is arranged on the machine body (1), a plurality of digging teeth (411) arranged along the circumferential direction are arranged on the outer circumference of the wheel plate (41), the outer ends of the digging teeth (411) are bent along the forward direction to form hook parts (411a), tooth grooves (412) are arranged between every two adjacent digging teeth (411), a shaft hole (413) is formed in the center of the wheel plate (41); the wheel plates (41) are arranged along the axial direction of the main shaft (40), gaps (16) are formed between every two adjacent wheel plates (41), a plurality of rows of excavating tooth rows (14) are formed in the axial direction of the main shaft (40) by the excavating teeth (411), tooth groove rows (15) are formed between every two adjacent excavating tooth rows (14), the main shaft (40) penetrates through a plurality of shaft holes (413), and the wheel plates (41) and the main shaft (40) rotate synchronously.

2. The seashell excavating machine according to claim 1, wherein one side of the excavating tooth (411) comprises a slant side (411b) and a first arc side (411c), the other side of the excavating tooth (411) is a second arc side (411d), and the second arc side (411d) is recessed toward the slant side (411 b); and a second arc edge (411d), an inclined edge (411b) and a first arc edge (411c) on two adjacent digging teeth (411) are sequentially connected to form the tooth groove (412).

3. A seashell excavating machine according to claim 1 or 2, characterized in that a reinforcing bar (42) is provided at each row of excavating tooth rows (14), the reinforcing bar (42) is provided along the axial direction of the main shaft (40), and the reinforcing bar (42) is fixedly connected with all the hook parts (411a) in the row of excavating tooth rows (14).

4. The seashell excavating machine according to claim 1, characterized in that mounting holes (417) are formed in the wheel plates (41) corresponding to each excavating tooth (411), a plurality of rows of mounting holes (417) are formed in all the mounting holes (417) along the axial direction of the main shaft (40), a rotating shaft (47) is arranged in each row of mounting holes (417), a deflector rod (48) with one end connected with the rotating shaft (47) is arranged in a gap between adjacent wheel plates (41), and the excavating head assembly (4) further comprises a transmission assembly which can drive the rotating shaft (47) to rotate and enable the deflector rod (48) to swing outwards when the main shaft (40) rotates.

5. The seashell excavating machine according to claim 4, characterized in that both ends of the main shaft (40) are provided with side plates (43), a plurality of wheel plates (41) are positioned between the two side plates (43), the end of each rotating shaft (47) penetrates through the corresponding side plate (43), the transmission assembly comprises a driven gear (401) arranged on the outer end of each rotating shaft (47), one side of the driven gear (401) is provided with a driving gear (49) rotatably connected to the side plates (43), the driving gear (49) is engaged with the driven gear (401), the driving gear (49) is provided with a handle portion (491) radially arranged along the driving gear (49), the machine body (1) is fixed with a rear catch (8), the rear catch (8) is positioned at the rear upper part of the main shaft (40), and when the main shaft (40) rotates, the rear catch (8) can abut against the handle portion (491) and make the deflector rod (48) swing outwards, the driving gear (49) is provided with a torsion spring (17) which can enable the deflector rod (48) to rotate inwards.

6. A seashell excavating machine according to claim 5, characterized in that a front blocking column (9) is fixed on the machine body (1), the front blocking column (9) is positioned in front of and above the main shaft (40), and when the main shaft (40) rotates, the front blocking column (9) can abut against the handle part (491) and cause the deflector rod (48) to swing outwards.

7. The seashell excavating machine according to claim 5, characterized in that the outer side of the side plate (43) is provided with a gear seat (402) arranged on the main shaft (40), the gear seat (402) is circumferentially positioned on the main shaft (40), the driving gear (49) is provided with a lug (492) arranged along the radial direction, the outer circumferential surface of the gear seat (402) is provided with a plurality of limiting bosses (402a), and the limiting bosses (402a) are in one-to-one correspondence with the lug (492); the driving gear (49) is provided with a torsion spring (17) which can enable the driving gear (49) to rotate towards the limiting boss (402a), and when the lug boss (492) abuts against the corresponding limiting boss (402a), the outer end of the shift lever (48) is located in a gap (16) between the wheel plate (41) and the wheel plate (41).

8. The seashell excavating machine according to claim 7, characterized in that the outer end of the gear seat (402) is provided with a gear cavity (402b), the inner edge of the outer end surface of the gear seat (402) is provided with a step (402c), a cover plate (403) is arranged on the outer side of the step (402c) in the gear cavity (402b), a limit block (404) for limiting the outward movement of the cover plate (403) is fixed on the outer end surface of the gear seat (402), a through hole (403a) is formed in the cover plate (403), the second power mechanism (6) comprises a gear ring (61), a gear (62) and a hydraulic motor (63), the gear ring (61) is fixed on the inner circumferential surface of the gear cavity (402b), the gear (62) is arranged in the gear cavity (402b) and is meshed with the gear ring (61), the hydraulic motor (63) is fixed on the machine body (1), and the output shaft of the hydraulic motor (63) is arranged in the through hole (403a) and fixedly connected with the gear (62).

9. The seashell excavating machine according to claim 8, characterized in that the number of the limiting blocks (404) is at least three, and all the limiting blocks (404) are arranged along the circumferential direction of the outer end surface of the gear seat (402); stopper (404) include base (4041) and shrouding (4042), installation cavity (4041a) have been seted up on the lateral wall of base (4041), through opening (4041b) of intercommunication installation cavity (4041a) have been seted up on the inside wall of base (4041), be provided with roller (4043) in installation cavity (4041a), be provided with bearing (4044) on roller (4043), the part of bearing (4044) is passed through opening (4041b) and is stretched out installation cavity (4041a), the outer peripheral face of bearing (4044) is leaned on with the looks of apron (403), shrouding (4042) are fixed on base (4041) and are sealed installation cavity (4041a), be provided with spring (4045) between shrouding (4042) and roller (4043).

10. The seashell excavating machine according to claim 1, wherein the conveying mechanism (5) comprises a first net chain conveying belt (51) and a second net chain conveying belt (52) which are arranged on the machine body (1), the second net chain conveying belt (52) is positioned behind and below the excavating head assembly (4) and is arranged along the axial direction of the excavating head assembly (4), the first net chain conveying belt (51) is positioned on one side of the second net chain conveying belt (52) and the first net chain conveying belt (51) is arranged along the front-back direction of the machine body (1), and the second net chain conveying belt (52) can convey seashells to the first net chain conveying belt (51).

11. The seashell excavating machine according to claim 10, wherein the number of the net chain conveyor belts one (51) and two net chain conveyor belts two (52) are two, the two net chain conveyor belts two (52) are located in the same straight direction, one net chain conveyor belt one (51) is located on the left side of the machine body (1), the other net chain conveyor belt one (51) is located on the right side of the machine body (1), one net chain conveyor belt two (52) is used for conveying seashells to the left side of the machine body (1), and the other net chain conveyor belt two (52) is used for conveying seashells to the right side of the machine body (1).

12. The seashell excavating machine according to claim 10 or 11, characterized in that the seashell excavating machine further comprises a mounting frame (7) positioned on the left side and the right side of the front end of the machine body (1), both ends of the main shaft (40) are arranged on the mounting frame (7), the conveying mechanism (5) further comprises a supporting frame (53), the net chain conveying belt II (52) is arranged on the supporting frame (53), the supporting frame (53) is connected with the mounting frame (7) through a cross beam (54), and hydraulic cylinders (10) for driving the mounting frame (7) to ascend and descend are arranged on the left side and the right side of the front end of the machine body (1).

13. The seashell mining machine according to claim 12, wherein a buffer spring (13) is arranged between the upper end of the piston rod (10a) of the hydraulic cylinder (10) and the mounting frame (7), and the lower end of the buffer spring (13) is connected to the upper end of the piston rod (10a) of the hydraulic cylinder (10) and is connected to the mounting frame (7).

14. A seashell cutting machine according to claim 10 or 11, wherein the rear end of the first net chain conveyor belt (51) is tilted upwards to form an inclined lifting section (51 a).

15. The seashell excavating machine according to claim 4, characterized in that a plurality of wheel plates (41) and two side plates (43) are connected through a first fastening connecting rod (44), sleeves (45) sleeved on the first fastening connecting rod (44) are arranged between adjacent wheel plates (41) and between the wheel plates (41) and the side plates (43), two ends of each sleeve (45) are respectively abutted against the corresponding wheel plate (41), and all the wheel plates (41) and all the sleeves (45) are mutually compressed.

16. A seashell excavating machine according to claim 1, characterized in that the inner diameter of the shaft hole (413) is larger than the outer diameter of the main shaft (40) so that the inside of the excavating head assembly (4) forms a hollow structure.

17. The seashell excavating machine according to claim 16, characterized in that a supporting structure is arranged between at least two wheel plates (41) and the main shaft (40), the supporting structure comprises a mounting ring (415) and a plurality of radial plates (416), the mounting ring (415) is sleeved on the main shaft (40), a spacer sleeve (46) sleeved on the main shaft (40) is arranged between the adjacent mounting rings (415), two ends of the spacer sleeve (46) are respectively abutted against the corresponding mounting rings (415), the plurality of radial plates (416) are arranged along the circumferential direction of the mounting rings (415), and one end of the radial plates (416) is fixedly connected with the mounting rings (415), and the other end of the radial plates is fixedly connected with the wheel plates (41).