An adaptive circular water-spraying lotus root digging machine

Abstract

The present invention designs an adaptive annular water-spraying lotus root digging machine, comprising: a traveling device, a floating body, a water supply device, a water spraying assembly, and a lifting device; the traveling device is a crawler tractor with a hydraulic drive unit and a three-phase alternating current output, the floating body comprises a buoyancy box that can be laid or erected, and the water supply device comprises a water inlet tank pipe and a water pump; the water inlet tank can be laid flat in the water or erected in front of the main body, and a water-relief interface is connected to the water inlet pipe. The water spraying assembly comprises a nozzle, which is suspended on a swing frame like a gyroscope and can swing in the longitudinal and transverse directions and / or rise and fall in the vertical direction; through the linkage between the swing oil cylinder, the reciprocating pendulum wheel, and the lifting device, an adaptive annular water spraying operation mode is realized, and water can be sprayed on the lotus roots in the mud in an all-round manner. The design concept is novel, the degree of automation is high, the operation is simple, and it saves labor and time. It has strong adaptability to the depth of water level in mud or mud ponds with different components, and greatly improves the efficiency of digging lotus roots.

Description

Technical Field

[0001] The invention relates to an adaptive annular water-spraying lotus root digging machine, belonging to the technical field of lotus root digging equipment in ponds. Background Art

[0002] Lotus root is a traditional nutritious delicacy. Mature lotus roots grow in the mud under the pond water, arranged in disorder, and intertwined. The previous manual digging method has some shortcomings, mainly: high labor intensity, low efficiency, and easy to dig the lotus roots. With the continuous advancement of new technologies, a water spraying method for removing mud and picking lotus roots has been developed, that is, a high-pressure water gun equipped on a walking device is used to continuously spray high-pressure water to remove the mud around the lotus roots, and then the relatively clean lotus roots are picked out. The key to picking lotus roots in this way is the water spraying method and the device for spraying water. The existing lotus root picking machine water spraying device only sprays water vertically from top to bottom. Its shortcomings are: it is not conducive to removing the mud under the lotus roots as much as possible, and the lotus roots cannot be blown loose, resulting in a small amount of mud on the picked lotus roots, which increases the workload of the subsequent cleaning process. Therefore, how to use high-pressure water flow without dead ends and with high efficiency has become a key issue for lotus root picking machines.

[0003] The Chinese invention patent "A full-range water spraying system for lotus root harvesting machine" (201921548524.9) uses the same power to drive the water spraying device to move both axially and radially, which expands the swing range of the nozzle, realizes all-round flushing without dead angles, and increases the range of water spraying. However, the device has problems such as relatively complex structure, small axial swing amplitude, and no vertical lifting nozzle to facilitate water pressure adjustment; the new patent "A amphibious lotus root digging machine" (202011024743.4) can increase the buoyancy of the device, but this method of digging lotus roots has the problem of no water spraying to remove silt, and it is easy to dig lotus roots; the new patent "A swing nozzle to remove impurities and dig lotus roots machine" (201521032923.1) can only realize the left and right swing of the nozzle, and the nozzle cannot be conveniently adjusted during work.

[0004] It has also been found in practice that when a mobile lotus root digger is spraying water to dig lotus roots, there is often a problem of insufficient water in the water inlet tank located at the front of the lotus root digger due to obstruction caused by the accumulation of debris. Therefore, it is necessary to add a water inlet device near the nozzle at the rear of the lotus root digger to supplement the total water intake of the water pump.

[0005] In view of the above-mentioned problems, it is extremely necessary to develop an adaptive circular water spraying lotus root digging machine, which can not only spray water to remove mud without dead angles, but also increase the buoyancy of the lotus root digging device in the muddy water. In particular, it can automatically adjust the water spraying pressure according to the dry and wet conditions on site to achieve efficient mud removal and lotus root digging. Summary of the invention

[0006] The purpose of the present invention is to design an adaptive circular water-spraying lotus root digging machine in view of the problems mentioned in the background technology. The device has a novel design concept and a high degree of automation, which greatly improves the efficiency of digging lotus roots.

[0007] The technical solution of the present invention is:

[0008] An adaptive annular water-spraying lotus root digging machine comprises a walking device, a floating body, a water supply device and a water spraying assembly; the walking device comprises a body, which is a crawler tractor; the floating body comprises buoyancy boxes arranged on both sides of the body; the water spraying assembly comprises a water outlet main pipe, a water distribution pipe and a plurality of nozzles, the water outlet main pipe and the water distribution pipe are connected by a hose,

[0009] The nozzle is installed on the water distribution pipe; the nozzle can move up and down or / and left and right, or / and front and back, or / and left and right and front and back.

[0010] Preferably, the water distribution pipe is provided with a device for driving it to move up and down or / and left and right or / and front and back or / and left and right and front and back;

[0011] Or the nozzle is provided with a device for driving it to move up and down or / and left and right, or / and front and back, or / and left and right and front and back.

[0012] Preferably, the water supply device comprises a front water inlet device and a rear water inlet device, the rear part of the front water inlet device is connected in sequence with: a water inlet pipe and a water pump; the front water inlet device is arranged at the lower part of the front end of the body, a grid for filtering debris is attached to the outside of the water inlet box, the front end of the water inlet pipe extends into the water inlet box, a corrugated pipe for transition soft connection is arranged between the front end and the middle part of the water inlet pipe, and the rear end of the water inlet pipe is connected to the water inlet of the water pump;

[0013] One end of the rear water inlet pipe is connected to the water inlet pipe of the front water inlet device, and the other end is arranged at the tail of the rear end of the body.

[0014] An adaptive annular water-spraying lotus root digging machine comprises: a walking device, a floating body, a water supply device, a water-spraying assembly, and a lifting device;

[0015] The walking device comprises a body, which is a crawler tractor; the crawler tractor is provided with a hydraulic drive unit for driving hydraulic elements and an inverter for outputting three-phase alternating current, the left and right sides and the front end of the body are respectively provided with hinge ears for hanging a floating body and a water supply device water inlet tank, and the rear end of the body is provided with a transfer shaft for driving a water pump;

[0016] The floating body comprises: a buoyancy box and a lifting oil cylinder 2, wherein the buoyancy box is a hollow shell, and the buoyancy boxes are symmetrically arranged on the left and right sides of the main body, and the upper part of each buoyancy box is hinged to the lifting oil cylinder 2, and the upper end of the lifting oil cylinder 2 is hinged to the main body, and a buoyancy body hinge ear hinged to the main body is also arranged near the buoyancy box and the main body; when the buoyancy needs to be increased, the lifting oil cylinder 2 is controlled to extend the cylinder rod to make the buoyancy box flat on the water surface, and vice versa, the cylinder rod is retracted to make the buoyancy box upright;

[0017] The water supply device comprises: a water inlet box, and also comprises: a water inlet pipe, a water pump, a water outlet main pipe, a water distribution pipe, and a water spray hose which are sequentially connected to the rear of the water inlet box; the water inlet box is arranged at the lower part of the front end of the body, and a grid for filtering debris is attached to the outside of the water inlet box, the front end of the water inlet pipe extends into the water inlet box, a corrugated pipe for transition soft connection is arranged between the front end and the middle part of the water inlet pipe, and the rear end of the water inlet pipe is connected to the water inlet of the water pump; the lower end of the water spray hose is connected to the upper end of the nozzle arranged in the water spray assembly; the middle and rear end of the water inlet pipe, the water pump, the water outlet main pipe, and the water distribution pipe are all fixedly connected to the body;

[0018] A lifting cylinder is provided on the upper part of the water inlet tank, and the two ends of the lifting cylinder are respectively hinged to the main body and the water inlet tank. A hinge ear hinged to the main body is also provided near the water inlet tank and the main body. When the lifting cylinder is extended or retracted, the water inlet tank can be laid flat and immersed in water or stand upright in front of the main body.

[0019] Preferably, the rear end T of the water inlet pipe is connected to a water relief interface, and the water relief interface is used to introduce relief water pumped out by a submersible pump externally mounted on the rear of the main body to supplement the water intake of the water pump.

[0020] The water spray assembly comprises: a swing frame and a support frame; the swing frame is provided with: a timing pulley, a straight shaft, a reciprocating balance wheel, a nozzle, an annular support, a nozzle swing shaft, an annular support swing shaft, a connecting rod 1, a connecting rod 2, a connecting rod 3, and a nozzle pin shaft; the swing frame and the support frame are rectangular frames placed horizontally, the swing frame is located directly below the support frame, and a left connecting rod and a right connecting rod are hingedly provided in the vertical direction between the corners at both ends of the swing frame and the support frame, and a swing oil cylinder hinged in the vertical direction is provided in the middle between the swing frame and the support frame, and the swing oil cylinder is used to control the swing frame to swing up and down relative to the support frame with the hinge ears of the left connecting rod and the right connecting rod as the center;

[0021] At least 10 nozzles are arranged in parallel in the frame of the swing frame, and horizontal gates fixedly connected to the swing frame are arranged on both sides of each nozzle; the nozzle swing shaft extends outward along the horizontal sides of the middle of the nozzle, and the two ends of the nozzle swing shaft cooperate with the horizontal bearing positions arranged on the annular bracket, and the annular bracket swing shaft cooperates with the longitudinal bearing position arranged on the annular bracket, and the annular bracket swing shaft is fixedly connected to the horizontal gate;

[0022] The nozzle pin extends outward along the two lateral sides of the lower part of the nozzle; the timing pulley is fixedly connected to the upper end of the straight shaft, and the straight shaft is positioned on the outside of the short side of the swing frame through the bearing seat in the longitudinal direction, and the center of the reciprocating balance wheel is fixedly connected to the lower end of the straight shaft, and the wheel spoke of the reciprocating balance wheel is provided with at least three circular holes that are unequally spaced from the center of the reciprocating balance wheel, and one end of the connecting rod one is hinged to any circular hole on the wheel spoke of the reciprocating balance wheel through the pin; there are two connecting rods two, and one end of each connecting rod two is hinged to the other end of the connecting rod one, and the other end of the connecting rod two is respectively hinged to the nozzle pin, and the connecting rod three is provided with circular holes with the same spacing as that between the nozzles, and each circular hole is respectively hinged to the nozzle pin; when the reciprocating balance wheel rotates under the drive of the timing pulley, the connecting rod three drives the nozzle to swing back and forth in the horizontal direction with the lateral bearing position of the annular bracket as the center. Through this structural arrangement, when the connecting rod 1 is hinged to the circular holes at different positions on the spokes of the reciprocating balance wheel, the annular motion trajectory of the nozzle can be different, thereby making the size of the spraying area of ​​the nozzle adjustable.

[0023] Preferably, there are at least two connecting rods three, and the connecting rods three are respectively arranged on both sides of the nozzle in the horizontal direction.

[0024] The timing pulley is driven to rotate by a motor or a hydraulic motor arranged on the swing frame.

[0025] Furthermore, the upper end of the straight shaft is directly connected to the output shaft of the motor or hydraulic motor. In this case, a timing pulley is not required. The speed of the output shaft of the motor or hydraulic motor is set to be continuously adjustable from 0 to 30 rpm. The beneficial effect is that the lateral swing speed of the nozzle can be adjusted more flexibly.

[0026] The lifting device includes: a lifting winch, two groups of steel wire ropes, and two groups of pulleys. The lifting winch is fixedly connected to the main body. Drums are arranged at both ends of the lifting winch. Each group of pulleys is arranged at the upper part of the long side of the swing frame. One end of the steel wire rope is fixed on the drum, and the other end of the steel wire rope passes through the pulley and is then hinged to the hanging ear arranged at the lower edge of the long side of the support frame. The power source of the lifting winch is an electric motor or a hydraulic motor. During operation, when the lifting winch rotates forward and reversely, the steel wire rope pulls the swing frame up and down relative to the support frame, thereby realizing the vertical height adjustment of the water outlet of the nozzle relative to the lotus root position.

[0027] Preferably, the lifting device includes: at least two suspension cylinders, the upper ends of the suspension cylinders are hinged to the water spray assembly support, and the lower ends of the suspension cylinders are hinged to the upper part of the support frame; during operation, the suspension cylinders are synchronously extended and retracted, and when the suspension cylinders are extended and retracted, the water spray assembly can be pulled up and down relative to the water spray assembly support, thereby realizing vertical height adjustment of the water outlet of the nozzle relative to the lotus root position.

[0028] The operating method of the adaptive annular water-spraying lotus root digging machine during the operation process of the present invention is: first, start the crawler tractor to move to the working position, control the lifting cylinder 1 and the lifting cylinder 2, respectively lower the float box and the water inlet tank, start the water pump to pump water, and the high-pressure water pumped out of the water pump flows to each nozzle through the set water channel and rushes downward along each nozzle, and then start the motor or hydraulic motor that drives the timing pulley, so that the lotus root located in the mud can be fully opened and exposed; during the operation process, when it is necessary to adjust the height of the water spray assembly, start the lifting winch to lift or lower the water spray assembly.

[0029] The advantages and beneficial effects of the present invention are as follows: the nozzle of the present invention is suspended on the swing frame like a gyroscope, the lifting winch drives the water spray assembly to vertically lift along the Z axis, the swing cylinder drives the swing frame to swing longitudinally relative to the support frame, and the annular support can also swing longitudinally around the swing axis of the annular support, and when the external driving device drives the timing belt to rotate, the nozzle is driven to swing transversely and reciprocatingly through the straight shaft, the reciprocating balance wheel and the connecting rod one, the connecting rod two and the connecting rod three, and finally the nozzle can swing along the X axis (transverse direction) and the Y axis (longitudinal direction) and move up and down along the Z axis (vertical direction); through the linkage between the swing cylinder, the reciprocating balance wheel and the lifting winch, an adaptive annular water spraying operation mode is realized, and water can be sprayed on the lotus roots in the silt in all directions, the design concept is novel, the degree of automation is high, the operation is simple, labor and time are saved, and the adaptability to the depth of water level in the silt or mud pond with different components is strong, which greatly improves the efficiency of digging lotus roots.

[0030] During operation, due to obstruction caused by accumulation of debris and other reasons, there is often a problem of insufficient water in the water inlet box arranged at the front of the lotus root digger. The present invention provides a water inlet device that can be added near the nozzle at the rear of the lotus root digger, which can effectively supplement the total amount of water inlet of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of "an adaptive annular water-spraying lotus root digging machine" of the present invention;

[0032] Figure 2 yes Figure 1 Side view;

[0033] Figure 3 yes Figure 1 Top view;

[0034] Figure 4 yes Figure 1 Rear view;

[0035] Figure 5 It is a schematic diagram of the water supply device structure, in which A represents the T interface for external water supply;

[0036] Figure 6is another embodiment of the water supply device. The length of each water spray hose in this figure is less than Figure 5 The length of the sprinkler hose shown in ;

[0037] Figure 7 It is a schematic diagram of the structure of the transfer shaft provided outside the body for supporting various devices or driving the water pump;

[0038] Figure 8 It is a schematic diagram of the floating bodies arranged on both sides of the main body and the structure for connecting and lifting the floating bodies;

[0039] Fig. 9 Schematic diagram of the structure of the water spray assembly and the lifting device. In this figure, the water spray assembly is driven to rise and fall by the winch mechanism;

[0040] Fig.10 This is another structural schematic diagram of the water spray assembly and the lifting device. In the figure, the water spray assembly is driven to rise and fall by four suspension cylinders;

[0041] Fig.11 It is a schematic diagram of a posture of the nozzle in the water spray assembly under the action of external drive;

[0042] Fig.12 yes Fig.11 Top view;

[0043] Fig.13 yes Fig.11 Bottom view;

[0044] Fig.14 It is a schematic diagram of various mechanisms used to drive the nozzle;

[0045] Fig.15 Schematic diagram of another posture of the nozzle under external driving.

[0046] Description of the symbols in the accompanying drawings:

[0047] Figures 1 to 7 Middle: 1-body, 2-water inlet tank, 2.1-lifting cylinder 1, 3-water inlet pipe, 4-floating box, 4.1-lifting cylinder 2, 4.2-floating body hinge ear, 5-water pump, 5.1-transfer shaft (extending from the body engine), 6-water outlet main pipe, 6.1-water outlet main pipe support, 7-water distribution pipe, 7.1-water spray assembly support, 8-lifting winch, 9-water spray assembly, 10-water spray hose;

[0048] Figure 5 A in the middle indicates a T-joint for introducing external water from the rear of the body 1;

[0049] Figures 9 to 15Among them, 901-swing frame, 902-support frame, 903-right connecting rod, 904-swing cylinder, 905-left connecting rod, 906-pulley, 907-timing pulley, 908-straight shaft, 909-reciprocating balance wheel, 910-nozzle, 911-annular bracket, 912-nozzle swing shaft, 913-annular bracket swing shaft, 914-connecting rod one, 915-connecting rod two, 916-nozzle pin shaft, 917-connecting rod three, 918-suspension cylinder. DETAILED DESCRIPTION

[0050] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention. Anything not described in detail in this technical solution is a known technology.

[0051] See also Figures 1 to 8 The present invention discloses an adaptive annular water-spraying lotus root digging machine, comprising: a walking device, a floating body, a water supply device, a water spraying assembly 9, and a lifting device.

[0052] The walking device includes a main body 1, which is a crawler tractor; the crawler tractor is provided with a hydraulic drive unit for driving hydraulic elements and an inverter for outputting three-phase alternating current, the left and right sides and the front end of the main body are respectively provided with hinge ears for hanging floats and a water inlet tank of a water supply device, and the rear end of the main body is provided with a transfer shaft 5.1 for driving a water pump.

[0053] The floating body includes: a buoyancy box 4 and a lifting cylinder 4.1. The buoyancy box 4 is a hollow shell, which is symmetrically arranged on the left and right sides of the main body 1. The upper part of each buoyancy box is hinged to the lifting cylinder 4.1, and the upper part of the lifting cylinder 4.1 is hinged to the main body 1. A floating body hinge ear 4.2 hinged to the main body is also arranged near the buoyancy box 4 and the main body; when it is necessary to increase the buoyancy, the lifting cylinder 4.1 is controlled to extend the cylinder rod to make the buoyancy box 4 flat on the water surface, otherwise the cylinder rod is retracted to make the buoyancy box 4 upright.

[0054] See also Figure 5The water supply device includes: a water inlet box 2, and also includes: a water inlet pipe 3, a water pump 5, a water outlet main pipe 6, a water distribution pipe 7, and a water spray hose 10 connected in sequence to the rear part of the water inlet box 2; the water inlet box 2 is arranged at the lower part of the front end of the main body 1, and a grid for filtering debris is attached to the outside of the water inlet box 2. The front end of the water inlet pipe 3 extends into the water inlet box 2, and a corrugated pipe (not shown in the figure) for transition soft connection is arranged between the front end and the middle part of the water inlet pipe 3, and the rear end of the water inlet pipe 3 is connected to the water inlet of the water pump 5; the water spray hose 10 is a flexible cloth pattern fire water pipe, and the lower end of the water spray hose 10 is connected to the upper end of the nozzle 910 arranged in the water spray assembly 9; the middle and rear ends of the water inlet pipe 3, the water pump 5, the water outlet main pipe 6, and the water distribution pipe 7 are all fixedly connected to the main body, and 5 water outlet branches are evenly arranged at the lower part of the water outlet main pipe 6 to connect to the water distribution pipe 7.

[0055] A lifting cylinder 2.1 is provided on the upper part of the water inlet tank 2, and the two ends of the lifting cylinder 2.1 are respectively hinged to the main body 1 and the water inlet tank 2. A hinge ear hinged to the main body 1 is also provided near the water inlet tank 2 and the main body 1. When the lifting cylinder 2.1 is extended or retracted, the water inlet tank 2 can be laid flat and immersed in water or stand upright in front of the main body 1.

[0056] Furthermore, as another embodiment of the present invention, the rear end T of the water inlet pipe 3 is connected to a water relief interface, and the water relief interface is used to introduce relief water pumped out by a submersible pump externally mounted on the rear of the body 1 to supplement the water intake of the water pump 5.

[0057] Reference Figure 6 Furthermore, as another embodiment of the present invention, the lower part of the water outlet main pipe 6 is evenly provided with 4 water outlet branches connected to the water distribution pipe 7, and Figure 5 In comparison, this Figure 6 The length of the 4 outlet pipes is greater than Figure 5 Since the water spray hose 10 is a consumable material, the water spray assembly 9 can be freely lifted without affecting the free lifting of the water spray assembly 9. Figure 6 The spray hose 10 in the length is comparable Figure 5 The water spray hose set in the middle is shorter.

[0058] Refer to the attached Figures 9 to 15The water spray assembly 9 includes: a swing frame 901 and a support frame 902; the swing frame 901 is provided with: a timing pulley 907, a straight shaft 908, a reciprocating balance wheel 909, a nozzle 910, an annular support 911, a nozzle swing shaft 912, an annular support swing shaft 913, a connecting rod 1 914, a connecting rod 2 915, a connecting rod 3 917, and a nozzle pin 916; the swing frame 901 and the support frame 902 are rectangular frames placed horizontally, The swing frame 901 is located directly below the support frame 902. A left connecting rod 905 and a right connecting rod 903 are vertically hinged between the corners of the swing frame 901 and the support frame 902. A swing oil cylinder 904 is vertically hinged in the middle between the swing frame 901 and the support frame 902. The swing oil cylinder 904 is used to control the swing frame 901 to swing up and down relative to the support frame 902 with the hinge ears of the left connecting rod 905 and the right connecting rod 903 as the center.

[0059] At least 10 nozzles 910 are arranged in parallel in the frame of the swing frame 901. Fig. 9 In this embodiment, 25 nozzles are provided, and a horizontal gate fixedly connected to the swing frame 901 is provided on both sides of each nozzle; the nozzle swing shaft 912 extends outwardly along the lateral sides of the middle of the nozzle 910, and the two ends of the nozzle swing shaft 912 cooperate with the lateral bearing positions provided on the annular bracket 911, and the annular bracket swing shaft 913 cooperates with the longitudinal bearing positions provided on the annular bracket 911, and the annular bracket swing shaft 913 is fixedly connected to the horizontal gate;

[0060] The nozzle pin 916 extends outward along both sides of the lower part of the nozzle 910; the timing pulley 907 is fixedly connected to the upper end of the straight shaft 908, and the straight shaft 908 is positioned on the outside of the short side of the swing frame 901 through a bearing seat in the longitudinal direction; the center of the reciprocating balance wheel 909 is fixedly connected to the lower end of the straight shaft, and three circular holes unequally spaced from the center of the reciprocating balance wheel 909 are opened on the wheel spoke of the reciprocating balance wheel 909; one end of the connecting rod 914 is hinged to any circular hole on the wheel spoke of the reciprocating balance wheel 909 through a pin; in this embodiment, it is hinged to the circular hole at the maximum distance from the center. From the structural principle, it can be seen that the hinge at different positions leads to different annular motion trajectories of the nozzle, thereby making the size of the nozzle spray area adjustable.

[0061] There are two connecting rods 915, one end of each connecting rod 915 is hinged to the other end of connecting rod 1 914, and the other end of connecting rod 2 915 is hinged to the nozzle pin 916 respectively. The connecting rod 3 917 is provided with circular holes with the same spacing as the spacing between the nozzles 910, and each circular hole is hinged to the nozzle pin 916 respectively; when the reciprocating balance wheel 909 rotates under the drive of the timing pulley 907, the connecting rod 3 917 drives the nozzle 910 to swing back and forth horizontally with the horizontal bearing position of the annular bracket 911 as the center.

[0062] In the embodiment of the present invention, there are 10 connecting rods 917, and the connecting rods 917 are respectively arranged on both sides of the nozzle 910; each connecting rod 917 is hinged to 5 nozzle pins 916, and the connecting rods 917 are also hinged to each other.

[0063] The timing pulley 907 is driven to rotate by an electric motor or a hydraulic motor disposed on the swing frame 901 (the timing belt driving device is not shown in this embodiment).

[0064] Furthermore, the upper end of the straight shaft 908 is directly connected to the output shaft of the motor or hydraulic motor. In this case, a timing pulley is not required, and it is set that the speed of the output shaft of the motor or hydraulic motor is continuously adjustable from 0 to 30 rpm. By adopting this solution, the lateral swing speed of the nozzle can be adjusted more flexibly.

[0065] See attached Fig. 9 The lifting device includes: a lifting winch 8, two groups of steel wire ropes, and two groups of pulleys. The lifting winch 8 is fixedly connected to the main body 1. Drums are arranged at both ends of the lifting winch 8. Each group of pulleys is arranged at the upper part of the long side of the swing frame 901. One end of the steel wire rope is fixed on the drum, and the other end of the steel wire rope passes through the pulley 906 and then hinged to the hanging ear arranged at the lower edge of the long side of the support frame 902; the power source of the lifting winch 8 is an electric motor or a hydraulic motor; during operation, when the lifting winch 8 is reversed, the steel wire rope pulls the swing frame 901 up and down relative to the support frame 902, thereby realizing the vertical height adjustment of the water outlet of the nozzle 910 relative to the position of the lotus root to be dug.

[0066] See also Fig.10 , this figure is a schematic diagram of the structure of a water spray assembly and a lifting device in another embodiment, wherein the lifting device in the figure includes four suspension cylinders 918, the upper ends of the suspension cylinders 918 are hinged to the water spray assembly support 7.1, and the lower ends of the suspension cylinders 918 are hinged to the upper part of the support frame 902; during operation, each suspension cylinder 918 is extended and retracted synchronously, and when the suspension cylinders 918 are extended and retracted, the water spray assembly 9 can be pulled up and down relative to the water spray assembly support 7.1, thereby realizing the vertical height adjustment of the water outlet of the nozzle relative to the lotus root position.

[0067] Of course, as a variation of the technical solution, the present invention can also install the lifting and swinging device structure on the water distribution pipe 7 to achieve the vertical height adjustment of the water outlet of the nozzle relative to the lotus root position. At the same time, the water outlet main pipe support 6 and the water distribution pipe 7 can be connected by a hose.

[0068] The operating method of the adaptive annular water-spraying lotus root digging machine of the present invention during operation is: first, start the crawler tractor to move to the working position, control the lifting cylinder 1 2.1 and the lifting cylinder 2 4.1, respectively lower the float box 4 and the water inlet tank 2, start the water pump 5 to pump water, and the high-pressure water pumped out of the water pump 5 flows to each nozzle 910 through the set water channel, and rushes downward along each nozzle 910, and then start the motor or hydraulic motor that drives the timing pulley 907, so that the lotus root located in the mud can be flushed open in all directions and exposed; during the operation, when it is necessary to adjust the height of the water spray assembly 9, start the lifting winch 8 to lift or lower the water spray assembly 9.

[0069] The advantages and beneficial effects of the present invention are as follows: the nozzle of the present invention is suspended on the swing frame like a gyroscope, the lifting winch drives the water spray assembly to vertically lift along the Z axis, the swing oil cylinder drives the swing frame to swing longitudinally relative to the support frame, and the annular bracket can also swing longitudinally around the swing axis of the annular bracket, and when the external drive device drives the timing belt to rotate, the nozzle is driven to swing horizontally and reciprocatingly through the straight shaft, the reciprocating balance wheel, and the connecting rods 1, 2, and 3, and finally the nozzle can swing along the X axis (laterally) and the Y axis (longitudinal) and move up and down along the Z axis (vertically); through the linkage between the swing oil cylinder, the reciprocating balance wheel, and the lifting winch, an adaptive annular water spraying operation mode is realized, and water can be sprayed on the lotus root in the silt in an all-round way. The design concept is novel, the degree of automation is high, the operation is simple, and it saves labor and time. It has strong adaptability to the depth of water level in silt or mud ponds with different components, and greatly improves the efficiency of digging lotus roots. During operation, due to obstruction caused by the accumulation of debris and other reasons, there is often a problem of insufficient water in the water inlet box installed at the front of the lotus root digger. Adding a water inlet device near the nozzle at the rear of the lotus root digger can effectively supplement the total water intake of the water pump.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "fixed", "suspended" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. An adaptive circular water-spraying lotus root digging machine, include: Traveling device, floating body, water supply device, water spray assembly, lifting device; The walking device comprises a body, which is a crawler tractor; the crawler tractor is provided with a hydraulic drive unit for driving hydraulic elements and an inverter for outputting three-phase alternating current; the left and right sides and the front end of the body are respectively provided with hinge ears for hanging a floating body and a water supply device water inlet tank, and the rear end of the body is provided with a transfer shaft for driving a water pump; The floating body comprises: a buoyancy box and a lifting oil cylinder 2, wherein the buoyancy box is a hollow shell, and the buoyancy boxes are symmetrically arranged on the left and right sides of the main body, and the upper part of each buoyancy box is hinged to the lifting oil cylinder 2, and the upper end of the lifting oil cylinder 2 is hinged to the main body, and a buoyancy body hinge ear hinged to the main body is also arranged near the buoyancy box and the main body; when the buoyancy needs to be increased, the lifting oil cylinder 2 is controlled to extend the cylinder rod to make the buoyancy box flat on the water surface, and vice versa, the cylinder rod is retracted to make the buoyancy box upright; The water supply device comprises: a water inlet box, and also comprises: a water inlet pipe, a water pump, a water outlet main pipe, a water distribution pipe, and a water spray hose connected in sequence at the rear of the water inlet box; the water inlet box is arranged at the lower part of the front end of the body, a grid for filtering debris is attached to the outside of the water inlet box, the front end of the water inlet pipe extends into the water inlet box, a corrugated pipe for transition soft connection is arranged between the front end and the middle part of the water inlet pipe, and the rear end of the water inlet pipe is connected to the water inlet of the water pump; The lower end of the water spray hose is connected to the upper end of the nozzle provided in the water spray assembly; the middle and rear ends of the water inlet pipe, the water pump, the water outlet main pipe, and the water distribution pipe are all fixedly connected to the body; A lifting cylinder 1 is provided on the upper part of the water inlet box, and the two ends of the lifting cylinder 1 are respectively hinged to the main body and the water inlet box, and hinge ears hinged to the main body are also provided near the water inlet box and the main body. When the lifting cylinder 1 is extended and retracted, the water inlet box can be laid flat and immersed in water or stand upright in front of the main body; Features: The water spray assembly comprises: a swing frame and a support frame; the swing frame is provided with: a timing pulley, a straight shaft, a reciprocating balance wheel, a nozzle, an annular support, a nozzle swing shaft, an annular support swing shaft, a connecting rod 1, a connecting rod 2, a connecting rod 3, and a nozzle pin shaft; the swing frame and the support frame are rectangular frames placed horizontally, the swing frame is located directly below the support frame, and a left connecting rod and a right connecting rod are hingedly provided in the vertical direction between the corners at both ends of the swing frame and the support frame, and a swing oil cylinder hinged in the vertical direction is provided in the middle between the swing frame and the support frame, and the swing oil cylinder is used to control the swing frame to swing up and down relative to the support frame with the hinge ears of the left connecting rod and the right connecting rod as the center; At least 10 nozzles are arranged in parallel in the frame of the swing frame, and horizontal gates fixedly connected to the swing frame are arranged on both sides of each nozzle; the nozzle swing shaft extends outward along the horizontal sides of the middle of the nozzle, and the two ends of the nozzle swing shaft cooperate with the horizontal bearing positions arranged on the annular bracket, and the annular bracket swing shaft cooperates with the longitudinal bearing position arranged on the annular bracket, and the annular bracket swing shaft is fixedly connected to the horizontal gate; The nozzle pin extends outward along both sides of the lower part of the nozzle; the timing pulley is fixedly connected to the upper end of the straight shaft, and the straight shaft is positioned on the outside of one side of the short side of the swing frame through a bearing seat in the longitudinal direction, and the center of the reciprocating balance wheel is fixedly connected to the lower end of the straight shaft, and the wheel spoke of the reciprocating balance wheel is provided with at least three circular holes unequally spaced from the center of the reciprocating balance wheel, and one end of the connecting rod one is hinged to any circular hole on the wheel spoke of the reciprocating balance wheel through a pin; there are two connecting rods two, and one end of each connecting rod two is hinged to the other end of the connecting rod one, and the other end of the connecting rod two is hinged to the nozzle pin respectively, and the connecting rod three is provided with circular holes with the same spacing as that between the nozzles, and each circular hole is hinged to the nozzle pin respectively; when the reciprocating balance wheel rotates under the drive of the timing pulley, the connecting rod three drives the nozzle to swing back and forth in the horizontal direction with the horizontal bearing position of the annular bracket as the center; There are at least two connecting rods 3, and the connecting rods 3 are arranged on both sides of the nozzle; The timing pulley is driven to rotate by a motor or a hydraulic motor arranged on the swing frame.

2. An adaptive circular water-spraying lotus root digging machine as claimed in claim 1, Features: The lifting device includes: a lifting winch, two groups of steel wire ropes, and two groups of pulleys. The lifting winch is fixedly connected to the main body. Drums are arranged at both ends of the lifting winch. Each group of pulleys is arranged at the upper part of the long side of the swing frame. One end of the steel wire rope is fixed on the drum, and the other end of the steel wire rope passes through the pulley and is hinged to the hanging ear arranged at the lower edge of the long side of the support frame. The lifting winch is used to pull the swing frame up and down relative to the support frame.

3. The adaptive circular water-spraying lotus root digging machine as claimed in claim 1, Features: The lifting device comprises: at least two suspension cylinders, the upper ends of the suspension cylinders are hinged to the water spray assembly support, and the lower ends of the suspension cylinders are hinged to the upper part of the support frame; during operation, the suspension cylinders are extended and retracted synchronously.

4. The adaptive circular water-spraying lotus root digging machine as claimed in claim 1, Features: The rear end T of the water inlet pipe is connected with a water supplement interface, and the water supplement interface is used to introduce supplementary water pumped out by a submersible pump externally mounted on the rear of the main body to supplement the water intake of the water pump.

5. The adaptive circular water-spraying lotus root digging machine as claimed in claim 1, Features: The upper end of the straight shaft is directly connected to the output shaft of the motor or hydraulic motor, and the speed of the output shaft of the motor or hydraulic motor is set to be continuously adjustable at 0 to 30 rpm.

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