CN214593717U - Picking mechanism of beach clam harvester - Google Patents

Abstract

The utility model discloses a picking mechanism of a beach clam harvester, which comprises a main body part of a vehicle and a picking part; the utility model is characterized in that the main body part of the vehicle comprises a main vehicle platform; the main vehicle platform is arranged above two crawlers, and the main vehicle platform The front section of the machine is divided into left and right sides by the conveyor belt. The front ends of the left and right sides of the main vehicle platform are respectively provided with front baffles, and the front of the front baffles are provided with forearm ear seats and action cylinder ear seats; the picking part includes teeth and rollers; The left and right forearms are fixedly connected through the forearm cross bar and the shovel mouth cross plate, and a pin hole is respectively provided at the upper end of the left and right forearm and the protrusion at the lower edge of the upper section, which is used to movably connect the forearm ear seat and the piston rod of the forearm hydraulic action cylinder respectively. The upper ends of the left and right forearms are movably connected to the forearm ear seats above the left and right front baffles; the teeth are installed on the front side of the cross plate of the shovel mouth; the screen box is installed on the forearm cross bar between the left and right forearms, and the bottom screen of the screen box The front end of the strip is connected with the rear edge of the cross plate of the shovel mouth. It can separate sand, clams and small clams at one time.

Description

Picking mechanism of beach clam harvester

Technical Field

The utility model relates to a mechanism is selected in picking of sandy beach shellfish clam machine.

Background

At present, no ideal mechanical input with the advantages of labor intensity reduction, energy saving and high efficiency is available in digging and fishing shellfish creatures on the beach in coastal areas in China. Many coastal areas only use some old simple tools to dig various shellfish organisms, the labor intensity is high, the production efficiency is low, and the phenomenon needs to be solved urgently.

Disclosure of Invention

The utility model aims at providing a novel mechanism is selected to sandbeach shellfish harvester.

The utility model aims at realizing the picking mechanism of the beach clam harvester, which comprises a vehicle main body part and a picking part; the method is characterized in that:

the main body part comprises a crawler belt, a crossbeam, a rear upper beam, a main vehicle platform, a front baffle, a front arm ear seat, an action cylinder ear seat, a cab and a hydraulic walking motor;

the main vehicle platform is arranged above the two crawler belts, the hydraulic traveling motor is arranged on a rear wheel of the crawler belts, the front section of the main vehicle platform is divided into a left side and a right side by a conveyor belt in a blocking way, front baffle plates are respectively arranged at the front ends of the left side and the right side of the main vehicle platform, the upper part of each front baffle plate is arranged to be inclined backwards, the rear surfaces of the left front baffle plate and the right front baffle plate are respectively fixed at the front ends of the crossbeam and the two sides of the main vehicle platform, and a front arm lug seat and an action cylinder lug seat are arranged in front of each front baffle plate;

the picking part comprises a left forearm, a right forearm, a forearm transverse bar, a wheel fork, a shovel mouth transverse plate, teeth, a roller brush strip, a screen box, a bottom screen strip, a buffer layer, an elastic vertical strip, an outlet of the screen box, a screen box bottom transverse bar and a forearm hydraulic action cylinder; the left and right forearms are fixedly connected with a shovel port transverse plate through forearm cross bars, two ends of the shovel port transverse plate are fixedly connected below the lower ends of the left and right forearms close to one end of the wheel fork, the two forearm cross bars are fixed on the inner sides of the middle sections of the left and right forearms, pin holes are respectively arranged at the upper ends of the left and right forearms and at the lower edge of the upper section and used for respectively movably connecting a forearm ear seat and a piston rod of a forearm hydraulic action cylinder, the rear ends of the left and right forearm hydraulic action cylinders are respectively movably connected on the action cylinder ear seats below the left and right front baffles, and the upper ends of the left and right forearms are movably connected on the forearm ear seats above the left and right front baffles; the teeth are arranged on one side of the front edge of the transverse plate of the shovel mouth; the screen box is arranged on a front arm cross bar between the left front arm and the right front arm, and the front end of a bottom screen bar of the screen box is connected with the rear edge of a shovel port cross bar; the outlet of the screen box is arranged in front of the middle of the left and right front baffles and above the lower end of the conveying belt, the inner walls of the left and right wall boards of the screen box and the inner wall of the middle rear section of the upper cover are provided with buffer layers, an elastic vertical strip is arranged from the top of the slope peak of the screen box to the outlet of the upper cover, the lower edge of the bottom screen strip of the screen box is embedded in the cross strip at the bottom of the screen box, the front section of the bottom screen strip is arc-shaped with the radius of the roller as the radius, the middle rear section is a parabolic ascending slope, the slope is between 28 degrees and 36 degrees, and the top of the slope peak to the outlet is lower arc-shaped; the drum is arranged between the two wheel forks and is positioned above the joint of the bottom screen bar and the shovel port transverse plate, the drum hydraulic motor is arranged on the wheel fork on one side, the motor shaft is directly connected with the drum shaft, and the lowest part of the drum brush bar is arranged at the joint of the shovel port transverse plate and the bottom screen bar.

The sand shovel is characterized in that a plurality of side-by-side teeth are arranged on one side of the front edge of the shovel mouth transverse plate, the distance between every two adjacent teeth is equal to the width of a required conch, the teeth adopt a plowshare mode, the plowshare mode comprises pointed ends of the teeth, a bottom keel strip below the teeth and inclined surfaces of the teeth, the front ends of the inclined surfaces of the teeth are the pointed ends of the teeth, the inclined surfaces of the teeth and the ground form an included angle of 25-30 degrees, the inclined surface of the teeth is polished to reduce the rising resistance of shoveled sand, and the lower sides of the teeth are seated on the ground through the bottom keel strips of the teeth.

The distance between the upper surface of the bottom screen bar 24-1 of the screen box and the transverse bar at the bottom of the screen box is 1/2 which is longer than the length of the clam; the distance between the bottom screen bars is set to be less than the desired clam thickness and greater than 2/3 of the desired clam thickness.

The roller is cylindrical, the whole roller consists of a plurality of roller brush pieces, the center of the middle main body part of each roller brush piece is provided with a hole for penetrating a shaft, and scattered brush strips are uniformly distributed on the outer edge of the middle main body part; two ends of the roller shield are connected to the wheel fork through connecting strips, and the rear upper part of the roller shield is connected with the front edge of the upper cover of the screen box.

The utility model has the characteristics that: the device can be suitable for production of large and small-scale beach or artificial breeding places through the automation degree, and the input of a high-precision measurement system is added, so that the track prompt is provided, the past day operation point line can be accurately found, and the past day operation point line can be accurately continued for operation, the situation that the past day operation is repeatedly collected and the place is omitted in the beach environment after the tide changes continuously is avoided, and the device can also achieve the purposes of high automation degree, excellent working performance, high working efficiency and low labor intensity; the multifunctional beach clam sampler can be used for performing all-weather collection operation on beaches, is particularly more suitable for collecting clam products in large-area beach farm operation, and fully meets the production requirements of people.

The utility model has the advantages that: firstly, the teeth are adopted for sanding, the pointed teeth are more labor-saving, the tension on the surface of wet sand is easily broken through, and the arrangement of the keel at the bottom of the teeth can effectively reduce the continuous submergence of the front arm hydraulic action cylinder for controlling the teeth.

Secondly, the process of adopting a parabola structure and a bottom sieve strip structure combined by a roller and a sieve box cage can automatically separate sand, clams and small clams at one time, and the clams are safely and smoothly thrown to a conveying height and transferred to a conveying belt, so that labor and trouble are saved.

And thirdly, in order to ensure the safety of the shell clams in the screening and upper casting processes, a buffer layer is arranged on the inner wall of the screen mesh box, and an elastic vertical strip is additionally arranged from the top of the slope peak of the upper cover to the outlet of the screen mesh box for buffering and shielding.

Fourthly, in order to ensure the stability and safety of the shell clams in the conveying process, the conveying belt is made of soft rubber belts, raised lines which are longitudinally and obliquely connected are arranged on the conveying belt for intercepting, hole holes are further formed for the shell clams to be seated on the hole holes, and intercepting pieces are further arranged on the upper side and the lower section of the two sides of the conveying belt.

Fifthly, in order to ensure that the clams are safely stored in the box, the clams are not too high and too fast to directly fall into the box bottom of the vehicle after being thrown out of the conveyer belt and impact other clams which enter the box first to cause damage, and two layers of buffer layers and box bottom buffer cushion layers are arranged in the vehicle box.

Sixth, can also introduce the high-accuracy measurement system, can stop the repeated screening in the past that appears in the production after the tide and omit the emergence of the phenomenon, also be favorable to the multimachine to produce jointly, make the production have more planning nature.

In conclusion, the device can save time and labor, reduce labor intensity, reduce energy consumption and improve production efficiency.

Drawings

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

Fig. 2 is a schematic top view of the structure of fig. 1.

Fig. 3 is a schematic structural diagram of the conveying mechanism of the present invention.

Fig. 4 is a schematic structural view of the soft conveying belt of the present invention.

FIG. 5 is a schematic sectional view A-A of FIG. 4.

Fig. 6 is a schematic top view of the screen box of the present invention.

Fig. 7 is a schematic sectional structure view of B-B of fig. 6.

Fig. 8 is a schematic sectional structure view of C-C of fig. 6.

Fig. 9 is a schematic top view of a tooth according to the present invention.

Fig. 10 is a schematic top view of the structure of fig. 9.

Fig. 11 is a right-view structural diagram of fig. 9.

Detailed Description

The structure, working principle and working process of the present invention are described in detail below with reference to the accompanying drawings and embodiments:

"many", "certain" and "several" in the present invention are defined numbers, for example, "many" is defined numbers in the range of 100 to 1 thousand, and may also be defined numbers determined by those skilled in the art; "certain" is, for example: the diameter of the perforation is 0.66-0.85 of the width of the desired clam, and can also be a number determined by one skilled in the art. The "number of" is: a definite number in the range of 5-50, and also a number determined by a person skilled in the art.

As shown in the attached drawings, the picking mechanism of the beach clam harvester of the utility model comprises a vehicle main body part, a picking part and the like.

The main body part of the vehicle comprises a crawler 1, a girder 2, a rear upper beam 3, a main vehicle platform 4, a front baffle 5, a front arm ear seat 6, an actuating cylinder ear seat 7, a cab 8, an engine system 9, an engine main machine 9-1, a hydraulic system 10, a hydraulic main pump 10-1, a high-precision measuring system 11, a navigation screen 12, an antenna 13, a damping steel plate 14, a vehicle lamp 15, a hydraulic traveling switch 16, a hydraulic traveling motor 17 and the like.

As shown in figures 1 and 2, a hydraulic walking motor 17 is arranged on the rear wheel of a crawler 1, a main vehicle platform 4 is arranged above the two crawlers 1, the front section of the main vehicle platform 4 is divided into a left side and a right side by a conveyer belt, front baffles 5 are respectively arranged at the front ends of the left side and the right side, the upper part of each front baffle 5 is inclined backwards, the rear parts of the left front baffle 5 and the right front baffle 5 are respectively fixed at the front ends of the crossbeam 2 and the two sides of the main vehicle platform 4, a front arm lug seat 6 and an action cylinder lug seat 7 are arranged in the front of each front baffle 5, the front lamps are arranged at the outer positions above the front baffles 5 at the two sides, an engine main machine 9-1 and a hydraulic main pump 10-1 are arranged at the right side of the main vehicle platform, a cab is arranged at the left side of the main vehicle platform, parts of a hydraulic system are also arranged at the left rear section of the main vehicle platform to balance the bearing gravity of the two crawlers, and a switch of the engine system 9 and the hydraulic system 10 is arranged in the cab 8, The high-precision antenna 13 is arranged on the top of a cab 8, a storage compartment 46 is arranged at the rear section of the main vehicle, and is connected with a rear upper beam 3 through a damping steel plate 14 arranged at the rear section of a girder 2, so that the vibration and the jolt of the compartment are reduced, and the safety of clams in the compartment is protected. The high-precision measuring system 11 is arranged, and the phenomenon that screening and omission are repeated after the tide is over can be effectively avoided by the track prompt, so that the production efficiency is improved, and the investment of energy and labor is saved.

The second, pick and choose the part, by the left and right forearm 18, forearm horizontal bar 19, wheel fork 20, shovel mouth horizontal plate 21, tooth 22, cylinder 23, cylinder brush 23-1, cylinder shroud 23-2, screen box 24, bottom screen bar 24-1, buffer layer 24-2, elasticity hang down 24-3, exit 24-4 of screen box, screen box bottom horizontal bar 24-5, forearm hydraulic switch 25, forearm hydraulic actuating cylinder 26, cylinder hydraulic switch 27, cylinder hydraulic motor 28, etc. make up. The left and right forearms 18 are fixedly connected with a shovel mouth transverse plate 21 through forearm cross bars 19, two ends of the shovel mouth transverse plate 21 are fixedly connected below the tail end of the forearm 18 close to one end of a wheel fork 20, the two forearm cross bars 19 are fixed on the inner sides of the middle sections of the forearms 18, the two forearms 18 are fixedly connected, the other ends and the lower edge bulges of the upper sections are respectively provided with a pin hole for movably connecting a piston rod of a forearm ear seat 6 and a forearm hydraulic action cylinder 26, the rear ends of the left and right forearm hydraulic action cylinders 26 are respectively movably connected on an action cylinder ear seat 7 below a left and right front baffle 5, the upper ends of the two forearms 18 are movably connected on the forearm ear seat 6 above the left and right front baffle 5 (as shown in figures 1 and 2), the arrangement of the forearm hydraulic action cylinders 26 can aim at the collection of conch clams with different depths in different seasons, teeth 22 are arranged on one side of the shovel mouth transverse plate 21 as shown in figures 1 and 2, the distance between adjacent teeth 22 is equal to the width of the required conch clam, a tension exists on the wet sand surface after wetting, the sharp tooth breaks through the tooth with less labor, so the teeth adopt a plowshare mode, the inclined plane and the ground form an included angle of 25-30 degrees, the upper surface is polished to reduce the rising resistance of the shoveled sand, the lower surface is seated on the ground by a bottom keel strip of the teeth 22 (as shown in fig. 9, fig. 10 and fig. 11) to overcome the continuous submerging force of the teeth 22, and the teeth 22 are controlled to continuously submerge by matching with a forearm hydraulic action cylinder 26. The screen box 24 is installed on the front arm cross bar 19 between the left front arm 18 and the right front arm 18, the front end of the screen box 24 is close to the rear of the shovel mouth cross plate 21, the outlet of the screen box is positioned close to the front of the middle of the left front baffle 5 and the right front baffle 5 and above the lower end of the conveyer belt 29 (figure 1 and figure 2), in order to prevent the shell clams from being thrown and damaged by the roller brush strips 23-1, the inner walls of the left wall plate and the right wall plate of the screen box 24 and the inner wall of the middle rear section of the upper cover are both provided with buffer layers 24-2, the elastic vertical strips 24-3 (figure 1 and figure 8) are additionally arranged from the top of the slope peak of the screen box 24 to the upper cover of the outlet, the front section of the bottom screen strip 24-1 takes the radius of the roller 23 as the arc, the middle rear section is a parabolic ascending slope, the slope is between 28 degrees and 36 degrees, and the top of the slope peak to the outlet is a lower arc (figure 1). The lower edge of the bottom screen band 24-1 of the screen box 24 is embedded in the cross band 24-5 at the bottom of the screen box, and the distance between the upper surface of the bottom screen band 24-1 and the cross band 24-5 at the bottom of the screen box is 1/2 (shown in fig. 6 and 7) which is larger than the length of clams; the distance between the bottom screen strips 24-1 is set to be smaller than the required thickness of the clam, and larger than 2/3 of the required thickness of the clam, so that when the clam is pressed between the bottom screen strips 24-1 by the roller brush strips 23-1 and pushed backwards, the clam cannot touch the cross strips 24-5 at the bottom of the screen box to cause damage, and the clam can be smoothly thrown out of the top of the cross slope along the bottom screen strips 24-1 and fall into the outlet of the screen box. The drum 23 is arranged between the two wheel forks 20 and is positioned above the joint of the bottom sieve bar 24-1 and the shovel mouth transverse plate 21 (figures 1 and 2), the drum 23 is cylindrical, the whole drum is composed of a plurality of drum brush pieces, the drum brush pieces are circular when viewed from the axial direction, the outer contour of the drum brush pieces is rectangular when viewed from the radial direction, the drum brush pieces comprise a middle main body part and brush bars, the middle main body part of the drum brush pieces is rectangular when viewed from the radial direction, a hole for penetrating a shaft is formed in the center of the middle main body part of the drum brush pieces, and scattered brush bars are uniformly distributed on the outer edge of the middle main body part; the drum hydraulic motor 28 is arranged on one side wheel fork 20, the motor shaft is directly connected with the drum shaft, the lowest part of the drum brush strip 23-1 is arranged at the joint of the shovel opening transverse plate 21 and the bottom screen strip 24-1, two ends of the drum shield 23-2 are connected with the wheel fork 20 through connecting strips (shown in figures 1 and 2), the rear upper part of the drum shield 23-2 is connected with the front edge of the upper cover of the screen box 24, the rotating speed of the drum 23 = the rotating perimeter/min of the drum and is more than or equal to the traveling mileage/min of the main vehicle. In conclusion, after the sand is shoveled and pushed up to the shovel mouth transverse plate 21 by the teeth 22, the sand is brushed away by the roller brush strips 23-1, when the sand and the small clams are brushed to the bottom screen strips 24-1, the sand and the small clams fall down from the bottom screen strips 24-1, and the remained qualified clams are thrown upwards and backwards along the bottom screen strips 24-1 along with the rotation of the roller 23 and fall into the outlet 24-4 of the screen box at the top of the slope, so that the aims of automatically separating and screening the clams are fulfilled. Thus, the process of automatically collecting and screening the clams on the beach is completed, and the good rate of the clams is ensured.

The utility model can also be connected with a conveying and storing part, and thirdly, the conveying and storing part comprises a conveying belt 29, a main body bracket 30, an upper supporting frame 31, a lower supporting frame 32, a driving wheel 33, a driven wheel 34, an upper shaft fixing plate 35, a lower shaft fixing plate 36, a tensioner 37, an upper lifting roller 38, a lower lifting roller 39, an inclined supporting and squeezing roller 40, a positioning wheel 41, a left rubber side rail 42, a right rubber side rail 42, a lower rubber side rail 43, a conveying belt hydraulic switch 44, a conveying belt hydraulic motor 45, a compartment 46, a compartment bottom beam 46-1, a compartment bottom side rail 46-2, a compartment bottom side rail 46-3, a compartment bottom buffer cushion layer 46-4, a compartment discharge port 46-5, a buffer layer 47, a step platform 48, a scaling ladder 49, a compartment hydraulic lifting switch 50, a compartment hydraulic lifting action barrel 51 and the like. The main body support 30 is formed by connecting four long strips, namely an upper strip, a lower strip, a left strip and a right strip, and a cross strip, wherein the four sides of the main body support 30 are provided with diagonal brace supports, the left side and the right side of the two ends of the main body support 30 are provided with an upper shaft fixing plate 35 and a lower shaft fixing plate 36 (figure 3), the main body support 30 is obliquely arranged at the right side of a cab 8 and at the central position of a main vehicle platform 4 at the left side of an engine main machine 9-1, the front low and back high inclination angles of the main body support (shown in figures 1 and 2) are between 28 and 38 degrees, the lower end of the main body support 30 is arranged at the front lower part in the middle of a left front baffle 5 and a right front baffle 5, the lower part close to an outlet 24-4 of a screen box (figures 1 and 2), the lower support 32 is fixedly connected with a crossbeam 2 (figure 3), the upper end is arranged above a front wall plate of a carriage 46, the upper half section is fixedly connected with the main vehicle platform 4 by the upper support 31, a driving wheel 33 is arranged between the upper shaft fixing plates 35 at the left side and the right side, tensioners 37 are arranged on left and right upper shaft fixing plates 35, driven wheels 34 are arranged between left and right lower shaft fixing plates 36, a driving wheel 33 and the driven wheels 34 are respectively movably connected with the upper shaft fixing plates 35 and the lower shaft fixing plates 36 through shafts thereof, a conveyer belt hydraulic motor 45 is arranged on one side of the upper shaft fixing plates 35 (figure 3), the shaft of the conveyer belt hydraulic motor 45 is connected with the shaft of the driving wheel 33, one side of the conveyer belt 29 is provided with a plurality of specified hole holes 29-2 between the convex strips 29-1 besides longitudinally and obliquely connected convex strips 29-1, the diameter of the hole is 0.66-0.85 of the required Beard width (as shown in figures 4 and 5), the conveyer belt 29 is arranged on the driving wheel 33 and the driven wheels 34 in the main body bracket 30, one side of the convex strips 29-1 is outward as shown in figure 3, the conveyer belt 29 is tensioned through the tensioners 37, the running speed of the conveyer belt 29 is set that the rotating perimeter/min of the driving wheel 33 is more than or equal to the travel mileage of the main vehicle 3/4 min. The upper layer of the conveyer belt 29 is supported by a plurality of upper supporting rollers 38 and supported by an inclined supporting and extruding roller 40 to enable the upper layer of the conveyer belt 29 to form a state with slightly higher two sides and lower middle part, the lower layer of the conveyer belt 29 is also provided with a plurality of lower supporting rollers 39 for supporting, a plurality of positioning wheels 41 are arranged at two sides of the conveyer belt 29 at the lower layer for controlling the conveyer belt, a left rubber edge rail 42 and a right rubber edge rail 42 are respectively arranged at the upper layer of the conveyer belt 29 close to two sides, the upper parts of the left rubber edge rail 42 and the right rubber edge rail 42 are connected at the lower ends of long strip inner side strip connecting strips on the main body bracket 30, the lower ends of the left rubber edge rail 42 and the right rubber edge rail 42 are close to two side surfaces of the conveyer belt 29 and are lower than the raised strips 29-1 on the conveyer belt, the lower rubber edge rail 43 is hung below the upper end cross strip of the main body bracket 30, the lower side of the lower rubber rail 43 is slightly higher than the height of the raised line 29-1 of the conveying belt below the outlet 24-4 of the screen box (as shown in figure 3). The bottom cross bar 46-2 of the carriage is transversely paved on the bottom beam 46-1 of the carriage, two bottom strake 46-3 of the carriage are respectively connected with two ends of the bottom cross bar 46-1 of the carriage, the width is the same with that of the front main carriage platform 4, the carriage 46 is composed of four side wall panels and a carriage bottom plate, the width of the carriage 46 is smaller than that of the bottom cross bar 46-2 of the carriage, a certain space is left at two ends to be used as a step 48, the front ends outside two sides of the carriage 46 are respectively provided with a scaling ladder 49 (figure 1 and figure 2), two layers of buffer layers 47 and a bottom buffer cushion layer 46-4 are arranged in the carriage 46, the buffer 47 is made of soft belts and rubber elastic materials, the rubber elastic materials of the utility model preferably select the rubber elastic bars, the soft belt of the utility model preferably selects nylon, and is composed of a plurality of nylon belts side by side, the width of the nylon belts is less than or equal to three times of required conch, and the distance between the belts is less than or equal to the thickness of the required conch, the two ends of the nylon belt are connected with the frame of the buffer through rubber elastic strips, the frame is connected with the wall plate of the carriage 46 through connecting ropes, the width of the rubber elastic strips is 1/3 (figure 2) of the width of the nylon belt, and the rubber elastic strips are connected to the middle positions of the two ends of the nylon belt. Thus, when the clams thrown down from the conveyor belt fall into the carriage 46, the clams are blocked by the first buffer layer, if the clams fall between the two belts, the nylon belt automatically inclines and lets the two sides open under the action of the gravity of the clams, the clams fall down, if the nylon belt just falls in the center of the nylon belt, the clams are firstly displaced under the action of rubber elastic strips at the two ends of the nylon belt and slight vibration caused by movement of a vehicle, and then the nylon belt also inclines and falls down. The clam falling into the second layer buffer repeats the first layer action process. The clam falling into the compartment slowly falls one layer after another through the two buffer layers 47 arranged in the compartment, and then falls on the bottom buffer layer 46-4 of the compartment, and the two buffer layers are arranged, so that firstly, the height of the clam falling into the compartment 46 is reduced, and secondly, the falling speed is reduced, thereby avoiding the clam falling too high and too fast to impact the compartment 46 to cause damage, and ensuring the quality and safety of clam products; the carriage outlet 46-5 is arranged below the center of the rear wall plate of the carriage 46, one end of a piston rod of the carriage hydraulic lifting action cylinder 51 is movably connected to a connecting cross bar of the carriage bottom beam 46-1, and the lower end of the carriage hydraulic lifting action cylinder 51 is movably connected to a connecting bar of the rear upper beam 3.

Through the multiple ingenious designs, the aims of automatic collection, screening, conveying and boxing storage are achieved, and the stability and the good performance of the shell clam products in the whole process of collection, screening, conveying and boxing storage are guaranteed. The high-precision measurement positioning system is arranged, and the phenomena of repeated acquisition and omission after the tide of a wide beach can be effectively avoided by the track prompt, so that the energy and the labor are saved, and the production efficiency is improved.

The working principle is as follows:

when the machine needs to be in a parking state, a flat section is selected, then the machine is driven into the selected region, the hydraulic walking switch 16 is turned off, the crawler 1 stops rotating, the front arm hydraulic switch 25 is operated to enable the front arm 18 and the roller 23 to be put down, and then the engine system 9, other electrical appliances and power switches are turned off; when walking or turning around is needed, the operation is turned around, firstly, the front arm hydraulic switch 25 is operated to lead the front arm 18 to be folded and the teeth 22 to be lifted off the ground, then the roller hydraulic switch 27 and the conveyer belt hydraulic switch 44 are closed, the roller 23 and the conveyer belt 29 stop rotating, and finally, the left hydraulic walking switch 16 and the right hydraulic walking switch 16 are operated to lead the machine to be turned around; when the vehicle enters the walking mode from the static state, firstly, the engine main machine 9-1 is started, after the engine main machine 9-1 operates normally, the forearm hydraulic switch 25 is operated, the forearm 18 is lifted, and then the hydraulic walking switch 16 is operated, so that the vehicle starts to walk; when the machine needs to enter a working place for operation, the high-precision measuring system 11 and the navigation screen 12 are firstly opened, the forward operation point line is accurately searched, the forward operation point line is continued to enter the operation, the forearm hydraulic switch 25, the roller hydraulic switch 27 and the conveyor belt hydraulic switch 44 are operated to put down the forearm 18, and the roller 23 and the conveyor belt 29 run; finally, the hydraulic walking switch 16 is operated, the machine starts to move, and the teeth 22 enter the sand to the designed depth; when the teeth 22 push sand containing clams to the shovel mouth transverse plate 21 in an arched manner, the arched sand containing clams is brushed down by the roller brush strip 23-1 and pushed backward due to the continuous rotation of the roller 23, when the sand wraps the clams and enters the bottom screen strip 24-1, the sand and small clams fall down from the bottom screen strip 24-1, the remaining large clams are continuously pressed by the roller brush strip 23-1 and thrown out along the rising radian of the bottom screen strip 24-1 and then fall down after touching the elastic vertical strips 24-3, and then fall into the conveying belt 29 from the outlet 24-4 of the screen box, the clams falling into the conveying belt not only play a role of a fence, but also play a role of a fence, and the clams falling into the conveying belt are under the actions of the left and right rubber side rails 42, the lower rubber transverse rails 43, the longitudinally and obliquely connected convex strips 29-1 and the holes 29-2 on the conveying belt 29, The clam is prevented from being thrown out in the conveying process, the clam can be gathered in the center of the conveying belt in the conveying process, the hole holes 29-2 on the conveying belt 29 have the functions of enabling a small amount of sand, small clam and the like which are not screened out to be screened out from the hole holes 29-2 on one hand, and enabling the clam to be stably conveyed on the hole holes 29-2 on the other hand, the clam can stably run out of the whole conveying process, when the clam is thrown out of the conveying belt 29 and falls into the storage box 46, the clam slowly falls onto the box bottom buffer cushion layer 46-4 from one layer of the buffer layer 47 to the top from the bottom through the two buffer layers 47 in the box from top to bottom, the height of the clam is higher and higher along with the increase of the clam, the distance between the clam and the buffer layer 47 is closer and shorter, and therefore, the damage caused by the fact that the clam directly impacts the box 46 and impacts other clams on the box after being thrown out of the conveying belt 29 is avoided, effectively protecting the good rate of the clam products. When a certain amount of stored clam products in a carriage 46 are collected, in order to reduce the operation load of the vehicle, the vehicle can be suspended for unloading, the hydraulic traveling switch 16, the conveyor belt hydraulic switch 44 and the roller hydraulic switch 27 are closed, the conveyor belt 29 and the roller 23 stop rotating, the machine stops moving, a carriage discharge port 46-5 of the carriage is opened for bagging, when the clam cannot automatically flow out, the carriage hydraulic lifting switch 50 can be opened, the carriage hydraulic lifting action cylinder 51 jacks the front section of the carriage, the clam automatically flows out, after the operation is finished, the carriage lifting hydraulic switch 50 is closed, the carriage is automatically put down, then the switches which are closed just before are opened, and the machine again travels to continue the operation and production. Therefore, the device can safely dig out, screen, convey and store the clams hidden in the beach into the carriage, and the whole process of operation and production is completed.

Claims (4)

1. A picking mechanism of a beach clam harvester comprises a vehicle main body part and a picking part; the method is characterized in that:

the main body part comprises a crawler belt, a crossbeam, a rear upper beam, a main vehicle platform, a front baffle, a front arm ear seat, an action cylinder ear seat, a cab and a hydraulic walking motor;

the main vehicle platform is arranged above the two crawler belts, the hydraulic traveling motor is arranged on a rear wheel of the crawler belts, the front section of the main vehicle platform is divided into a left side and a right side by a conveyor belt in a blocking way, front baffle plates are respectively arranged at the front ends of the left side and the right side of the main vehicle platform, the upper part of each front baffle plate is arranged to be inclined backwards, the rear surfaces of the left front baffle plate and the right front baffle plate are respectively fixed at the front ends of the crossbeam and the two sides of the main vehicle platform, and a front arm lug seat and an action cylinder lug seat are arranged in front of each front baffle plate;

the picking part comprises a left forearm, a right forearm, a forearm transverse bar, a wheel fork, a shovel mouth transverse plate, teeth, a roller brush strip, a screen box, a bottom screen strip, a buffer layer, an elastic vertical strip, an outlet of the screen box, a screen box bottom transverse bar and a forearm hydraulic action cylinder; the left and right forearms are fixedly connected with a shovel port transverse plate through forearm cross bars, two ends of the shovel port transverse plate are fixedly connected below the lower ends of the left and right forearms close to one end of the wheel fork, the two forearm cross bars are fixed on the inner sides of the middle sections of the left and right forearms, pin holes are respectively arranged at the upper ends of the left and right forearms and at the lower edge of the upper section and used for respectively movably connecting a forearm ear seat and a piston rod of a forearm hydraulic action cylinder, the rear ends of the left and right forearm hydraulic action cylinders are respectively movably connected on the action cylinder ear seats below the left and right front baffles, and the upper ends of the left and right forearms are movably connected on the forearm ear seats above the left and right front baffles; the teeth are arranged on one side of the front edge of the transverse plate of the shovel mouth; the screen box is arranged on a front arm cross bar between the left front arm and the right front arm, and the front end of a bottom screen bar of the screen box is connected with the rear edge of a shovel port cross bar; the outlet of the screen box is arranged in front of the middle of the left and right front baffles and above the lower end of the conveying belt, the inner walls of the left and right wall boards of the screen box and the inner wall of the middle rear section of the upper cover are provided with buffer layers, an elastic vertical strip is arranged from the top of the slope peak of the screen box to the outlet of the upper cover, the lower edge of the bottom screen strip of the screen box is embedded in the cross strip at the bottom of the screen box, the front section of the bottom screen strip is arc-shaped with the radius of the roller as the radius, the middle rear section is a parabolic ascending slope, the slope is between 28 degrees and 36 degrees, and the top of the slope peak to the outlet is lower arc-shaped; the drum is arranged between the two wheel forks and is positioned above the joint of the bottom screen bar and the shovel port transverse plate, the drum hydraulic motor is arranged on the wheel fork on one side, the motor shaft is directly connected with the drum shaft, and the lowest part of the drum brush bar is arranged at the joint of the shovel port transverse plate and the bottom screen bar.

2. The mechanism of claim 1, wherein: the sand shovel is characterized in that a plurality of side-by-side teeth are arranged on one side of the front edge of the shovel mouth transverse plate, the distance between every two adjacent teeth is equal to the width of a required conch, the teeth adopt a plowshare mode, the plowshare mode comprises pointed ends of the teeth, a bottom keel strip below the teeth and inclined surfaces of the teeth, the front ends of the inclined surfaces of the teeth are the pointed ends of the teeth, the inclined surfaces of the teeth and the ground form an included angle of 25-30 degrees, the inclined surface of the teeth is polished to reduce the rising resistance of shoveled sand, and the lower sides of the teeth are seated on the ground through the bottom keel strips of the teeth.

3. The mechanism of claim 1, wherein: the distance between the upper surface of the bottom screen bar 24-1 of the screen box and the transverse bar at the bottom of the screen box is 1/2 which is longer than the length of the clam; the distance between the bottom screen bars is set to be less than the desired clam thickness and greater than 2/3 of the desired clam thickness.

4. The mechanism of claim 1, wherein: the roller is cylindrical, the whole roller consists of a plurality of roller brush pieces, the center of the middle main body part of each roller brush piece is provided with a hole for penetrating a shaft, and scattered brush strips are uniformly distributed on the outer edge of the middle main body part; two ends of the roller shield are connected to the wheel fork through connecting strips, and the rear upper part of the roller shield is connected with the front edge of the upper cover of the screen box.

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