Movable automatic water and fertilizer all-in-one machine

Abstract

The invention relates to the technical field of intelligent agricultural equipment, and discloses a movable automatic water and fertilizer all-in-one machine which comprises a flat car, and a fertilization barrel, a centrifugal filter, a lamination filter, a fertilizer blending machine and a controller which are mounted on the flat car, the fertilization barrel comprises a barrel body, a barrel cover arranged at the top of the barrel body and a driving motor mounted on the barrel cover, a power output shaft of the driving motor extends into the fertilizing barrel and is connected with a mixing mechanism; the mixing mechanism comprises a reciprocating lead screw in transmission connection with a power output shaft of the driving motor, a lead screw nut arranged on the reciprocating lead screw in a sleeving mode, a rotating lantern ring rotationally connected to the exterior of the lead screw nut in a sleeving mode through a bearing, a plurality of sets of radial connecting arms fixedly connected in the circumferential direction of the rotating lantern ring at equal intervals, and stirring units arranged on all the sets of radial connecting arms. Through mutual cooperation of the rolling mechanism and the mixing mechanism, cakes in the fertilization barrel are continuously rolled and crushed in the mixing process, and the risk that solid water-soluble fertilizer particles block an irrigation system is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent agricultural equipment, and particularly relates to a movable automatic water and fertilizer integrated machine. BACKGROUND

[0002] As an important application result of intelligent manufacturing equipment industry in the field of agriculture, the water and fertilizer integrated equipment represents the key equipment for the transformation of modern agricultural production to automation, informatization and intelligentization. The equipment introduces the filtered water source into the fertilizer tank, pre-mixes with the input soluble solid fertilizer to form uniform fertilizer solution, and realizes the spraying of the water and fertilizer solution through the irrigation system by the regulation of the intelligent control system, so as to complete the synchronous supply of water and nutrients to crops.

[0003] The existing full-automatic water and fertilizer integrated machine for plant irrigation with the publication number CN120770253A includes a fertilizer tank, a fertilizer mixing cylinder is fixedly arranged at the top of the fertilizer tank, a partition plate is fixedly connected to the bottom of the fertilizer mixing cylinder, a plurality of through grooves are formed in the partition plate, a rotating shaft is rotatably arranged at the middle position of the partition plate, a plurality of sealing plates are fixedly connected to the bottom of the rotating shaft, and a water cylinder is fixedly arranged at one side of the top of the fertilizer tank. The above technical solution can add fertilizer mother liquor under the condition that the irrigation system does not stop, has the advantages of accurate quantitative fertilizer supply, strong operation continuity, and flexible and efficient water and fertilizer deployment.

[0004] However, in the actual water and fertilizer mixing preparation link, there are generally problems of insufficient dissolution of solid water-soluble fertilizer and poor mixing uniformity. Specifically, when the solid fertilizer is put into the fertilizer tank, due to the physical characteristics of the fertilizer particles that are easy to absorb moisture and form clumps, and the concentrated pouring that may occur during feeding, local accumulation is easily formed in the tank body. After water injection and stirring start, the conventional stirring system often has difficulty in breaking up these clumps in a short time, especially when the fertilizer formula contains components with low solubility or easy to harden when encountering water. Even if the stirring system continues to run, the fluid shear force and circulation range generated by the stirring blade may be insufficient, and the small clumps that are not fully broken or the large clumps with high hardness will continue to suspend or deposit. This not only causes uneven distribution of the fertilizer solution concentration in the tank, resulting in differences in the concentration of the fertilizer solution finally delivered to each irrigation unit, affecting the uniformity of fertilization and the balance of crop absorption, but also causes the solid water-soluble fertilizer particles that are not completely dissolved to enter the irrigation system with the fertilizer solution, gradually depositing in the pipeline, or causing problems such as clogging of the drippers, sprinklers and filters, resulting in decreased irrigation uniformity, abnormal system pressure, and even causing local irrigation failure. SUMMARY

[0005] The purpose of this invention is to provide a portable automatic water and fertilizer integrated machine to solve the problems mentioned in the background art, such as insufficient dissolution and uneven mixing of solid water-soluble fertilizers during the mixing process, resulting in uneven fertilizer concentration and blockage of the irrigation system.

[0006] The present invention provides a mobile automatic water and fertilizer integrated machine, which adopts the following technical solution: A mobile automatic water and fertilizer integrated machine includes a flatbed truck (1) and a fertilizer tank (2), a centrifugal filter (3), a disc filter (4), a fertilizer mixing machine (5), and a controller (6) installed on the flatbed truck (1). The inlet of the centrifugal filter (3) is used to connect to an external water source. The outlet of the centrifugal filter (3) is connected to the inlet of the disc filter (4). The outlet of the disc filter (4) is connected to the inlet of the fertilizer tank (2). The outlet of the fertilizer mixing machine (5) is connected to the fertilizer tank (2). The fertilizer tank (2) includes a tank body (21), a tank cover (22) set on the top of the tank body (21), and a drive motor (23) installed on the tank cover (22). The power output shaft of the drive motor (23) extends into the interior of the fertilizer tank (2) and is connected to a mixing mechanism (7). The mixing mechanism (7) includes a reciprocating screw (71) that is connected to the power output shaft of the drive motor (23), a screw nut (72) sleeved on the reciprocating screw (71), a rotating collar (73) that is rotatably sleeved on the screw nut (72) through a bearing, multiple sets of radial connecting arms (74) that are fixedly connected at equal intervals along the circumferential direction of the rotating collar (73), and a stirring unit (75) set on each set of radial connecting arms (74). A sleeve (76) is coaxially fixedly connected inside the barrel (21). A spiral guide groove (77) is provided on the inner side wall of the sleeve (76). An extension arm (78) is fixedly connected on the rotating collar (73). A guide block (79) that slides with the spiral guide groove (77) is fixedly connected to the end of the extension arm (78) near the sleeve (76). It also includes a crushing mechanism (8) for crushing fertilizer clumps, which can perform periodic rotational movements with the up-and-down reciprocating motion of the rotating collar (73).

[0007] Furthermore, the rolling mechanism (8) includes a conical upper rolling disc (81) fixedly connected to the extension arm (78) and a conical lower rolling disc (82) coaxially disposed inside the lower part of the barrel body (21). The conical upper rolling disc (81) is located directly above the conical lower rolling disc (82). A base plate (83) is fixedly connected to the bottom of the conical lower rolling disc (82). The edge of the base plate (83) contacts the inner wall of the sleeve (76) and can slide up and down and rotate.

[0008] Further, the bottom center of the bottom disc (83) is fixedly connected with a sliding rod (84), the inner bottom end of the barrel (21) is fixedly connected with a positioning cylinder (85), a sliding groove (86) is arranged in the positioning cylinder (85), the sliding rod (84) is slidingly inserted into the sliding groove (86), an arc-shaped guide groove (87) is arranged on the side wall of the positioning cylinder (85), and a limiting sliding block (88) radially protruding from the sliding rod (84) is slidingly matched with the arc-shaped guide groove (87).

[0009] Further, the outer surface of the sliding rod (84) is provided with a spring (89), and the two ends of the spring (89) are respectively abutted against the bottom of the bottom disc (83) and the top of the positioning cylinder (85).

[0010] Further, the direction of the arc-shaped guide groove (87) is opposite to the spiral direction of the spiral-shaped guide groove (77).

[0011] Further, a sealing ring (831) is arranged at the bottom edge of the bottom disc (83), and the outer side of the sealing ring (831) is in sliding sealing contact with the inner side wall of the sleeve (76).

[0012] Further, a T-shaped long rod (721) is fixedly connected to the lead screw nut (72), and a T-shaped vertical groove (722) is arranged on the inner side wall of the sleeve (76) and used for embedding and sliding the T-shaped long rod (721).

[0013] Further, the stirring unit (75) comprises a stirring frame (751), the stirring frame (751) is rotatably connected to the corresponding radial connecting arm (74) through a hinge shaft (752), a long strip-shaped flow window (753) is arranged through the stirring frame (751), a plurality of rotatable crushing blades (754) are arranged in the flow window (753) at equal intervals along the length direction of the flow window (753), and the crushing blades (754) are rotatably connected to the flow window (753) through rotating shafts (755).

[0014] Further, a center through hole (811) is arranged in the center of the conical upper mill (81) and used for allowing the reciprocating lead screw (71) to pass through.

[0015] Further, a plurality of spiral-shaped grinding convex ribs (812) are circumferentially and equidistantly arranged on the bottom conical surface of the conical upper mill (81), and the grinding convex ribs (812) are in contact with the inner conical surface of the conical lower mill (82) and generate rotary friction when the conical upper mill (81) is pressed downward.

[0016] The beneficial effects of the present application are as follows: 1. Through the cooperation of the driving motor, the reciprocating lead screw, the lead screw nut and the spiral guide groove, the periodic up-down reciprocating motion of the mixing mechanism is realized, the problem of limited stirring range of the traditional fixed stirring blade is solved, the fertilizer at different heights in the fertilizer barrel can be fully mixed, and meanwhile, cooperating with the rolling mechanism, the fertilizer caking can be effectively broken, the hard mass formed by caking is avoided, the dissolution efficiency and uniformity of the solid water-soluble fertilizer are significantly improved, and the problems of insufficient dissolution and uneven mixing of the fertilizer in the prior art are solved.

[0017] 2. The stirring unit is fixedly connected to the rotating collar through the radial connecting arm and can perform overall up-down reciprocating and rotating motion with the rotating collar, and meanwhile, cooperating with the rolling mechanism, the water and fertilizer form a three-dimensional mixing flow field in the fertilizer barrel, the solid water-soluble fertilizer in the fertilizer barrel is realized three-dimensional stirring and breaking, the uniformity of the fertilizer solution is greatly improved, and the consistency of the fertilization effect is significantly improved.

[0018] 3. The rolling mechanism cooperates with the mixing mechanism to continuously roll and break the caking in the fertilizer barrel during the mixing process, the risk of solid water-soluble fertilizer particles blocking the irrigation system is reduced, the service life of the dripper, the spray head and the filter is prolonged, the maintenance cost is reduced, the local irrigation failure is avoided, and the reliability of the whole water and fertilizer integrated system is improved.

[0019] 4. Through the cooperation of the stirring frame, the hinged shaft, the overflow window and the breaking blade, the breaking capacity is further improved, the breaking blade rotates in the overflow window and shears and impacts the passing fertilizer solution and loose fertilizer particles, which can further break the fertilizer lumps and reduce the size of the undissolved particles, especially for the small caking which has not been completely processed by the rolling mechanism, the breaking blade can perform secondary crushing. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the three-dimensional structure of the present application; Figure 3 is a schematic diagram of the three-dimensional structure of the present application; Figure 4 is a schematic diagram of the three-dimensional structure of the present application; Figure 5 is a schematic diagram of the three-dimensional structure of the present application; Figure 6 is a schematic diagram of the three-dimensional structure of the present application; Figure 7 is a schematic diagram of the three-dimensional structure of the present application; Figure 8 It is the perspective structure explosion schematic diagram of the lead screw nut and the rotating collar of the application; Figure 9 It is the perspective structure schematic diagram of the rotating collar, the radial engagement arm and the stirring frame of the application; Figure 10 It is the perspective structure bottom view schematic diagram of the conical lower mill, the base plate, the sliding rod and the positioning cylinder of the application; Figure 11 It is the perspective structure explosion schematic diagram of the conical lower mill, the sliding rod, the positioning cylinder and the spring of the application; Figure 12 It is the perspective structure bottom view schematic diagram of the conical upper mill of the application.

[0021] In the figure: 1, flatbed truck; 2, fertilizer bucket; 21, bucket body; 22, bucket cover; 23, driving motor; 3, centrifugal filter; 4, laminated filter; 5, fertilizer mixing machine; 6, controller; 7, mixing mechanism; 71, reciprocating lead screw; 72, lead screw nut; 721, T-shaped long rod; 722, T-shaped vertical groove; 73, rotating collar; 74, radial engagement arm; 75, stirring unit; 751, stirring frame; 752, hinged shaft; 753, overflow window; 754, crushing blade; 755, rotating shaft; 76, sleeve; 77, helical guide groove; 78, extension arm; 79, guide block; 8, rolling mechanism; 81, conical upper mill; 811, central through hole; 812, grinding convex rib; 82, conical lower mill; 83, base plate; 831, sealing ring; 84, sliding rod; 85, positioning cylinder; 86, sliding groove; 87, arc-shaped guide groove; 88, limit sliding block; 89, spring. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0023] Refer to Figures 1-3The application provides a movable automatic water and fertilizer integrated machine, which comprises a flat car 1 and a fertilizer application barrel 2, a centrifugal filter 3, a laminated filter 4, a fertilizer mixing machine 5 and a controller 6 which are installed on the flat car 1, the water inlet of the centrifugal filter 3 is used for connecting an external water source, the external water source is first connected to the water inlet of the centrifugal filter 3, the centrifugal filter 3 removes larger particle impurities in water through high-speed centrifugal action, plays a role of primary filtration, the water outlet of the centrifugal filter 3 is communicated with the water inlet of the laminated filter 4, the water outlet of the laminated filter 4 is communicated with the water inlet of the fertilizer application barrel 2, the water which has been subjected to primary filtration enters the laminated filter 4, can realize more fine filtration, effectively removes small suspended solids, and ensures that the water entering the fertilizer application barrel 2 is clean, the fertilizer outlet of the fertilizer mixing machine 5 is communicated with the fertilizer application barrel 2, is used for adding solid fertilizers into the fertilizer application barrel 2 quantitatively and at regular time intervals, the fertilizer application barrel 2 comprises a barrel body 21, a barrel cover 22 which is arranged at the top of the barrel body 21 and a driving motor 23 which is installed on the barrel cover 22, wherein the centrifugal filter 3, the laminated filter 4, the fertilizer mixing machine 5 and the driving motor 23 are electrically connected with the controller 6, and automation and intelligentization of water and fertilizer mixing integrated operation are realized.

[0024] With reference to Figures 2-7 The power output shaft of the driving motor 23 extends into the inside of the fertilizer application barrel 2 and is connected with a mixing mechanism 7, specifically, the mixing mechanism 7 comprises a reciprocating screw rod 71 which is in transmission connection with the power output shaft of the driving motor 23, a screw nut 72 which is sleeved on the reciprocating screw rod 71, a rotating sleeve ring 73 which is rotatably sleeved on the outside of the screw nut 72 through a bearing, a plurality of groups of radial link arms 74 which are fixedly connected along the circumferential direction of the rotating sleeve ring 73 at equal intervals, and a stirring unit 75 which is arranged on each group of radial link arms 74, when the driving motor 23 rotates, the reciprocating screw rod 71 rotates, the screw nut 72 converts the rotary motion into linear motion through thread cooperation, moves up and down along the axial direction of the reciprocating screw rod 71, and simultaneously drives the rotating sleeve ring 73, the radial link arms 74 and the stirring unit 75 to move up and down, a sleeve 76 is coaxially fixedly connected in the inside of the barrel body 21, the outside wall of the sleeve 76 is attached to the inside wall of the barrel body 21, a through hole for water and fertilizer is formed in the sleeve 76, a helical guide groove 77 is formed in the inside wall of the sleeve 76, an extension arm 78 is fixedly connected to the rotating sleeve ring 73, a guide block 79 which is in sliding cooperation with the helical guide groove 77 is fixedly connected to the end of the extension arm 78 close to the sleeve 76, when the driving motor 23 drives the reciprocating screw rod 71 to rotate, the screw nut 72 moves up and down with the rotating sleeve ring 73, and simultaneously the guide block 79 slides in the helical guide groove 77, so that the rotating sleeve ring 73 rotates in the process of moving up and down, thereby realizing the up-and-down reciprocating motion and rotary motion of the mixing mechanism 7, effectively enhancing the mixing effect of the fertilizer in the fertilizer application barrel 2, and making the fertilizer and water more fully contact and uniformly disperse.

[0025] With reference to Figure 7It should be noted that, in order to realize the vertical guidance of the screw nut 72, a T-shaped long rod 721 is fixedly connected to the screw nut 72, and a T-shaped vertical groove 722 for embedding and sliding of the T-shaped long rod 721 is correspondingly formed on the inner side wall of the sleeve 76, so that the screw nut 72 can only make vertical reciprocating motion along the T-shaped vertical groove 722 under the driving of the reciprocating screw rod 71. The T-shaped vertical groove 722 is vertically and throughly arranged, and the machining depth thereof in the wall thickness direction of the sleeve 76 is greater than that of the spiral guide groove 77. The T-shaped vertical groove 722 penetrates the spiral guide groove 77 from top to bottom, and the two form a cross in space. Due to the different shapes and depths, the T-shaped long rod 721 and the guide block 79 independently run in the T-shaped vertical groove 722 and the spiral guide groove 77 respectively, and do not interfere with each other. In addition, the position of the T-shaped long rod 721 is higher than the working area of the stirring unit 75.

[0026] With reference to Figures 8-9 The stirring unit 75 includes a stirring frame 751, which is rotationally connected to the corresponding radial connecting arm 74 through a hinged shaft 752. The hinged design enables the stirring frame 751 to swing within a certain angle range relative to the radial connecting arm 74 when the rotating sleeve 73 rotates and moves up and down, thereby enhancing the stirring effect in the fertilizer solution. A long strip-shaped flow window 753 is formed through the stirring frame 751. The flow window 753 allows the fertilizer solution and loose fertilizer particles to flow inside it. A plurality of rotatable crushing blades 754 are arranged at equal intervals along the length direction of the flow window 753. When the fertilizer solution flows through the flow window 753, the crushing blades 754 will rotate under the impact of the water flow, thereby shearing and impacting the passing fertilizer solution and loose fertilizer particles, so as to further break down the fertilizer lumps and reduce the size of the undissolved solid water-soluble fertilizer particles.

[0027] With reference to Figure 4 and Figures 10-12Further comprising a crushing mechanism 8 for breaking up fertilizer lumps, the crushing mechanism 8 can perform periodic rotary action with the up-and-down reciprocating movement of the rotating collar 73, the crushing mechanism 8 includes a conical upper mill 81 fixedly connected with the extension arm 78 and a conical lower mill 82 coaxially arranged inside the barrel 21 at a lower position, the conical structure design increases the contact area and uniformity of stress of crushing, the conical upper mill 81 is located directly above the conical lower mill 82, the center of the conical upper mill 81 is provided with a central through hole 811 allowing the reciprocating lead screw 71 to pass through, the central through hole 811 ensures that the reciprocating lead screw 71 can pass through the conical upper mill 81 vertically smoothly and does not interfere with its movement, the bottom of the conical lower mill 82 is fixedly connected with a bottom disc 83, the edge of the bottom disc 83 is in contact with the inner side wall of the sleeve 76 and can slide and rotate up and down, when the conical upper mill 81 moves downward with the rotating collar 73, the conical lower mill 82 is subjected to the downward pressure from the conical upper mill 81, and the fertilizer lumps located between the two are subjected to extrusion and crushing, more importantly, the bottom disc 83 can rotate, thereby further enhancing the grinding and shearing action on the fertilizer lumps, providing more effective crushing capacity, avoiding the residual of local lumps, and enabling the fertilizer to be fully dissolved.

[0028] The bottom center of the bottom disc 83 is fixedly connected with a sliding rod 84, the inside bottom end of the barrel 21 is fixedly connected with a positioning cylinder 85, the inside of the positioning cylinder 85 is provided with a sliding groove 86, the sliding rod 84 is slidingly inserted into the sliding groove 86, the design of the sliding groove 86 enables the sliding rod 84 to slide freely in the vertical direction, an arc-shaped guide groove 87 is formed on the side wall of the positioning cylinder 85, a limiting sliding block 88 radially protruding from the sliding rod 84 is fixedly connected with the arc-shaped guide groove 87, the conical upper mill 81 contacts and applies pressure to the conical lower mill 82, at the same time, due to the rotation of the conical upper mill 81, the rotary force is transmitted to the conical lower mill 82 through the contact surface between the two, at this time, the sliding of the limiting sliding block 88 in the arc-shaped guide groove 87 enables the bottom disc 83 to slide vertically while being forced to rotate at a certain angle along the arc-shaped path of the arc-shaped guide groove 87, at this time, the conical upper mill 81 and the conical lower mill 82 simultaneously perform rotary movement, thereby generating efficient grinding and shearing action, enhancing the physical crushing capacity of the fertilizer lumps.

[0029] The outer surface of the sliding rod 84 is provided with a spring 89, the two ends of the spring 89 are respectively abutted against the bottom of the bottom disc 83 and the top of the positioning cylinder 85, the spring 89 provides an upward pre-tightening force for the conical lower mill 82, when the conical upper mill 81 moves downward, a constant crushing pressure can be generated between the two, and the conical lower mill 82 can be reset to the initial position after the crushing is completed.

[0030] It should be noted that the direction of the arc-shaped guide groove 87 is opposite to the spiral direction of the spiral guide groove 77, when the rotating sleeve 73 moves downward and rotates under the action of the spiral guide groove 77 with the conical upper mill 81, due to the opposite direction of the arc-shaped guide groove 87 and the spiral guide groove 77, through the cooperation of the limiting sliding block 88 and the sliding rod 84, the conical lower mill 82 will be forced to rotate in the opposite direction while moving downward, this opposite rotation movement generates a certain intensity of shearing and grinding force in the rolling process, especially for the hard lumps, the breaking effect is remarkable, further improving the breaking capacity between the conical upper mill 81 and the conical lower mill 82.

[0031] In addition, referring to Figure 10 , the bottom edge of the chassis 83 is provided with a sealing ring 831, the outer side of the sealing ring 831 is in sliding sealing contact with the inner side wall of the sleeve 76, the sealing ring 831 prevents the fertilizer particles or fertilizer liquid from leaking below the chassis 83 when the chassis 83 slides up and down and rotates, avoids the deposition of fertilizer in the area which is not easy to clean, and ensures the effective mixing space inside the fertilizer barrel 2.

[0032] Referring to Figure 12 , in order to further enhance the rolling effect, a plurality of spiral grinding ribs 812 are distributed on the bottom conical surface of the conical upper mill 81, the grinding ribs 812 are in contact with the inner conical surface of the conical lower mill 82 and produce rotary friction when the conical upper mill 81 is pressed down, the spiral grinding ribs 812 form multiple point contact and friction with the inner conical surface of the conical lower mill 82 during the rolling process, especially under the action of rotation, which can grind and shear the fertilizer lumps in multiple directions, effectively increasing the broken surface area and force, greatly improving the thoroughness and efficiency of rolling and breaking.

[0033] The present application provides a movable and automated platform through the flat car 1, the centrifugal filter 3, the laminated filter 4, the fertilizer mixing machine 5 and the controller 6, cooperates with the mixing mechanism 7 and the rolling mechanism 8 arranged inside the fertilizer barrel 2, realizes the effective breaking, sufficient dissolution and uniform mixing of solid fertilizer lumps, the mixing mechanism 7 expands the stirring range and improves the mixing efficiency through the cooperation of the reciprocating lead screw 71, the lead screw nut 72, the rotating sleeve 73, the spiral guide groove 77 and the guide block 79, the rolling mechanism 8 rolls and grinds the fertilizer lumps while mixing, the broken blade 754 can perform secondary crushing and shearing on the small lumps which have not been completely processed by the rolling mechanism 8, thereby effectively solving the problems of insufficient dissolution, uneven mixing and easy blocking of solid water-soluble fertilizer in the existing water-fertilizer integrated equipment.

[0034] The working principle of the mobile automatic water and fertilizer integrated machine is as follows: firstly, an external water source is subjected to preliminary rough filtration through a centrifugal filter 3 to remove larger impurities, and then is subjected to more fine filtration through a laminated filter 4; a controller 6 controls a fertilizer mixing machine 5 to pour a certain amount of solid fertilizer into a fertilizer barrel 2 according to preset program instructions; then, a driving motor 23 is started to drive a reciprocating screw rod 71 to rotate, and a screw nut 72 converts the rotary motion of the reciprocating screw rod 71 into its own up-down motion under the guidance of a T-shaped long rod 721 and a T-shaped vertical groove 722, thereby driving a rotating sleeve ring 73 to move up and down reciprocally; at the same time, a guide block 79 slides in a spiral guide groove 77, so that the rotating sleeve ring 73 rotates while moving up and down reciprocally; when the rotating sleeve ring 73 moves downward, a conical upper mill 81 gradually approaches and contacts a conical lower mill 82 below, so as to exert a pressing force on the fertilizer lumps between the two; at this time, a sliding rod 84 at the bottom of a base plate 83 vertically slides in a sliding groove 86 in the inside of a positioning cylinder 85, and a limiting slide block 88 on the sliding rod 84 cooperates with an arc-shaped guide groove 87 on the sidewall of the positioning cylinder 85, so that the conical lower mill 82 slides up and down and rotates by a certain angle when subjected to the downward pressure and rotary torque of the conical upper mill 81, and the conical lower mill 82 rotates in the opposite direction of the conical upper mill 81, thereby effectively crushing the fertilizer lumps; after the crushing is completed, the restoring force of a spring 89 pushes the conical lower mill 82 back to the initial position.

[0035] In addition, a stirring frame 751 and a crushing blade 754 rotatable through a rotating shaft 755 are arranged on the stirring unit 75, and when the fertilizer liquid flows through a flow window 753, the stirring frame 751 and the crushing blade 754 perform secondary shearing treatment on the small fertilizer lumps or the solid water-soluble fertilizer particles that have not been completely dissolved in the fertilizer liquid, thereby further improving the dissolution efficiency of the fertilizer; the whole water and fertilizer integrated machine is intelligently controlled by the controller 6, and the water and fertilizer ratio, mixing time and stirring speed can be accurately adjusted according to the crop demand and environmental conditions.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A mobile automatic water and fertilizer integrated machine, comprising a flat car (1) and a fertilizer application barrel (2), a centrifugal filter (3), a laminated filter (4), a fertilizer mixing machine (5) and a controller (6) installed on the flat car (1), the water inlet of the centrifugal filter (3) is used to connect an external water source, the water outlet of the centrifugal filter (3) is communicated with the water inlet of the laminated filter (4), the water outlet of the laminated filter (4) is communicated with the water inlet of the fertilizer application barrel (2), and the fertilizer outlet of the fertilizer mixing machine (5) is communicated with the fertilizer application barrel (2), characterized in that, The fertilizer tank (2) comprises a tank body (21), a tank cover (22) arranged at the top of the tank body (21), and a driving motor (23) mounted on the tank cover (22), wherein a power output shaft of the driving motor (23) extends into the interior of the fertilizer tank (2) and is connected with a mixing mechanism (7); The mixing mechanism (7) comprises a reciprocating lead screw (71) in transmission connection with the power output shaft of the driving motor (23), a lead screw nut (72) sleeved on the reciprocating lead screw (71), a rotating sleeve ring (73) rotatably sleeved outside the lead screw nut (72) through a bearing, a plurality of groups of radial link arms (74) fixedly connected along the circumferential direction of the rotating sleeve ring (73) at equal intervals, and a stirring unit (75) arranged on each group of radial link arms (74), wherein the interior of the tank body (21) is coaxially fixedly connected with a sleeve (76), a helical guide groove (77) is formed on the inner side wall of the sleeve (76), the rotating sleeve ring (73) is fixedly connected with an extension arm (78), and the end of the extension arm (78) close to the sleeve (76) is fixedly connected with a guide block (79) in sliding fit with the helical guide groove (77). Further comprising a rolling mechanism (8) for breaking up fertilizer clumps, wherein the rolling mechanism (8) can perform periodic rotating action with the up-down reciprocating movement of the rotating sleeve ring (73).

2. The mobile automatic water and fertilizer integrated machine according to claim 1, characterized in that, The rolling mechanism (8) comprises a conical upper roller (81) fixedly connected with the extension arm (78) and a conical lower roller (82) coaxially arranged at a lower position in the interior of the tank body (21), wherein the conical upper roller (81) is located directly above the conical lower roller (82), the bottom of the conical lower roller (82) is fixedly connected with a bottom disc (83), and the edge of the bottom disc (83) is in contact with and can slide up and down and rotate with the inner side wall of the sleeve (76).

3. The mobile automatic water and fertilizer integrated machine according to claim 2, characterized in that, The bottom center of the bottom disc (83) is fixedly connected with a sliding rod (84), the bottom end of the interior of the tank body (21) is fixedly connected with a positioning cylinder (85), a sliding groove (86) is formed in the interior of the positioning cylinder (85), the sliding rod (84) is slidingly inserted into the sliding groove (86), an arc-shaped guide groove (87) is formed in the side wall of the positioning cylinder (85), and a limiting sliding block (88) radially protruding from the sliding rod (84) is in sliding fit with the arc-shaped guide groove (87).

4. The mobile automatic water and fertilizer integrated machine according to claim 3, characterized in that, A spring (89) is arranged on the outer surface of the sliding rod (84), and the two ends of the spring (89) are respectively abutted against the bottom of the bottom disc (83) and the top of the positioning cylinder (85).

5. The mobile automatic water and fertilizer integrated machine according to claim 3, characterized in that, The direction of the arc-shaped guide groove (87) is opposite to the helical direction of the helical guide groove (77).

6. The mobile automatic water and fertilizer integrated machine according to claim 2, characterized in that, A sealing ring (831) is arranged at the bottom edge of the bottom disc (83), and the outer side of the sealing ring (831) is in sliding sealing contact with the inner side wall of the sleeve (76).

7. The mobile automatic water and fertilizer integrated machine according to claim 1, characterized in that, A T-shaped long rod (721) is fixedly connected to the lead screw nut (72), and a T-shaped vertical groove (722) is formed in the inner side wall of the sleeve (76) to embed and slide the T-shaped long rod (721).

8. The mobile automatic water and fertilizer integrated machine according to claim 1, characterized in that, The stirring unit (75) comprises a stirring frame (751) which is rotationally connected to the corresponding radial connecting arm (74) through a hinged shaft (752), and a long strip-shaped flow window (753) is formed through the stirring frame (751), a plurality of rotatable crushing blades (754) are equidistantly arranged in the length direction of the flow window (753), and the crushing blades (754) are rotationally connected to the flow window (753) through rotating shafts (755).

9. The mobile automatic water and fertilizer integrated machine according to claim 2, characterized in that, A central through hole (811) is formed in the center of the conical upper mill (81) to allow the reciprocating lead screw (71) to pass through.

10. The mobile automatic water and fertilizer integrated machine according to claim 2, characterized in that, A plurality of spiral-shaped grinding convex ridges (812) are equidistantly distributed on the bottom conical surface of the conical upper mill (81) in a circumferential direction, and the grinding convex ridges (812) are in contact with the inner conical surface of the conical lower mill (82) and generate rotary friction when the conical upper mill (81) is pressed downward.

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