Sediment covering material laying device and working method

Abstract

The invention discloses a bottom mud covering material laying device which is installed on a ship and comprises a covering blanket, balance weight balls are symmetrically and flexibly connected to the two long edges of a blanket body of the covering blanket at intervals; the counterweight balls on each side of the covering blanket are arranged in a row on the supporting frame body; the two delivery mechanisms are correspondingly mounted at one ends of the counter weight balls in rows, each delivery mechanism comprises a group of rotating wheels which are opposite and spaced, and each group of rotating wheels exert acting force on the counter weight balls entering the spaced area through reverse rotation, so that the counter weight balls have the initial speed and pull the covering blanket to move linearly; the conveying mechanism is used for pushing the foremost balance weight balls in each row into the delivery mechanism one by one, the invention further discloses a working method of the bottom mud covering material laying device, the laying work of the bottom mud covering material can be efficiently completed through the device, and the laying effect is better than that of other kinds of laying modes.

Description

Technical Field

[0001] The present invention relates to the technical field of polluted water treatment, and more specifically to a device for laying a bottom mud covering material and a method for using the same. Background Art

[0002] Sediment is an important component of the water ecological environment of urban rivers, reservoirs, etc. There is a constant exchange of substances between the sediment and the overlying water body, which is enriched with a large number of substances such as heavy metals, nitrogen and phosphorus, and difficult-to-degrade organic pollutants. The concentrations of various pollutants in the water-sediment system are in dynamic equilibrium. Once the sediment environment is disturbed, the pollutants will return to the water through analysis, diffusion, etc., causing secondary pollution. In order to control the pollution or potential pollution risk of sediment to river water bodies, and considering the characteristics of urban river sediment pollution, in recent years, biological blanket remediation technology has often been used for the control of sediment pollution in rivers and reservoirs.

[0003] The biological mat remediation technology is to lay a biological mat on the bottom of the polluted water body, and use the biological mat to isolate the bottom mud layer from the water layer to a certain extent. Plants can grow on the biological mat layer formed after a period of stability, solving the problem of sedimentation of polluted bottom mud in the river. The Chinese patent with authorization announcement number CN107285582B discloses a covering mat for in-situ repair of heavy metal polluted bottom mud and its laying method. The covering mat is divided into four layers from bottom to top, namely the bottom layer, the lower layer, the upper layer and the surface layer, and is laid in the river and reservoir by manual or mechanical means. This covering mat has a good environmental governance effect. However, the laying method still adopts a method of mainly manual labor and supplemented by machinery. The Chinese patent with authorization announcement number CN218579752U discloses a device for laying bottom mud covering materials. By arranging a winch, a rack, a pulley, a hanger and a bio-mat winding and unwinding mechanism at the stern of the laying ship, the laying of the bio-mat can be achieved. However, since the bio-mat winding and unwinding mechanism of the device is only completed by the winch and pulley system below the bio-mat winding and unwinding mechanism, the laying can only be completed when the laying ship is stationary or at a low speed, and the efficiency is not high. Conventional large-scale laying of bio-mats still requires a large amount of manpower and ship coordination.

[0004] Therefore, it is urgent to propose a new type of bottom mud covering material laying device and use method. Summary of the invention

[0005] One object of the present invention is to provide a device for laying a bottom mud covering material and a method for using the device, which can efficiently complete the laying of a biological blanket, and the laid biological blanket is not easily displaced by water flow disturbance.

[0006] In order to achieve these purposes and other advantages according to the present invention, in the first aspect, the present invention provides a device for laying bottom mud covering materials, which is installed on a ship, comprising: a covering blanket, on the two long sides of which the blanket body is flexibly connected with counterweight balls at intervals and symmetrically; a supporting frame, on which the counterweight balls on each side of the covering blanket are arranged in a row; two delivery mechanisms, which are correspondingly installed at one end of the row of counterweight balls, and the delivery mechanism includes a group of relative and spaced rotating wheels, wherein a group of rotating wheels applies a force to the counterweight balls entering the spaced area thereof by reverse rotation, so that the counterweight balls have an initial velocity and pull the covering blanket to move in a straight line; a conveying mechanism, which is used to push the front counterweight balls of each row into the delivery mechanism one by one.

[0007] Preferably, the support frame includes two groups of counterweight ball brackets that are spaced apart and parallel to the axis of the ship, the counterweight ball brackets are two opposite and spaced L-shaped beams, the counterweight balls on the same side are arranged one by one in the counterweight ball brackets, the counterweight balls are jointly supported by two opposite bottom edges of the counterweight ball brackets, and the connection structure between the counterweight balls and the covering blanket passes through the interval between the two L-shaped beams of the counterweight ball brackets, wherein a row of counterweight balls enter the delivery mechanism one by one from the end of the counterweight ball bracket.

[0008] Preferably, a group of rotating wheels is lower than the end of the counterweight ball bracket, and a group of spaced and parallel guide rails are installed between the end of the counterweight ball bracket and the corresponding group of rotating wheels, wherein the counterweight ball falls from the end of the counterweight ball bracket to between the group of guide rails, and is guided to slide into the spaced area of ​​the group of rotating wheels under the common support of the group of guide rails.

[0009] Preferably, the conveying mechanism is installed above the counterweight ball bracket, and the conveying mechanism includes two fixed seats, a group of guide rods are fixedly connected between the two fixed seats, a threaded screw is connected to the bearing between the two fixed seats, one end of the threaded screw is transmission-connected to a screw motor, a sliding block is matched with the threaded screw and the guide rod, a pushing block is connected under the sliding block, the pushing block extends into the counterweight ball bracket, and abuts against the counterweight ball farthest from the delivery mechanism, wherein when the pushing block moves horizontally toward the delivery mechanism, the pushing block pushes a row of counterweight balls forward.

[0010] Preferably, the delivery mechanism also includes two mounting seats, each mounting seat is connected to a rotating wheel by a bearing, the upper parts of the two mounting seats are connected to a first connecting frame, the upper part of the first connecting frame is connected to a rotating mechanism, wherein the rotating part of the rotating mechanism is connected to the first connecting frame, and the fixed part of the rotating mechanism is connected to the supporting frame body.

[0011] Preferably, a rotating support is connected to the top of the first connecting frame, the rotating mechanism includes a rotating bearing, the rotating bearing includes a bearing inner ring and a bearing outer ring in which the bearings are nested, a bearing fixing seat is fixed to the top of the bearing inner ring, the bottom of the bearing outer ring is connected to the rotating support, a circle of tooth grooves is provided on the outer periphery of the bearing outer ring, a rotating motor is installed on the bearing fixing seat, the rotor of the rotating motor is transmission-connected with rotating teeth, and the rotating teeth are meshed with tooth grooves on the outer periphery of the bearing outer ring.

[0012] Preferably, a baffle shaft is installed on the first connecting frame, one end of the baffle shaft is transmission-connected to a baffle motor, the baffle shaft is downwardly connected to a baffle, and the baffle is located between a group of guide rails, wherein when the counterweight ball slides on the guide rail, the counterweight ball is blocked by the downward baffle and stops, and after the baffle motor controls the baffle to rotate and move away, the counterweight ball continues to slide along the guide rail.

[0013] Preferably, the middle part of the covering blanket is overlapped for multiple times, and the overlap lines are parallel to the long sides of the covering blanket, wherein the width of the overlapping covering blanket is smaller than that of the covering blanket before overlapping.

[0014] Preferably, the weighted ball comprises a weighted ball shell and a threaded cover, the weighted ball shell is provided with an opening threadedly connected to the threaded cover, and the weighted ball shell is filled with a weighted object.

[0015] In a second aspect, the present invention provides a method for laying a bottom mud covering material, which is applied to a bottom mud covering material laying device, and comprises the following steps: S1. Fill the ballast ball shell with sand and gravel as ballast, and connect all ballast balls with connecting ropes of the same length; S2, hang the ends of the connecting ropes symmetrically and at intervals on the two long sides of the blanket, and then insert the weight balls into the weight ball brackets on the corresponding sides in groups of two from the ends; S3, the covering blanket is hung through the rows of counterweight balls on both sides, and the delivery mechanism is installed at the front end of the counterweight ball bracket; S4, start the two sets of rotating wheels, the ship moves straight into the laying starting point and moves straight at a constant speed, and the conveying mechanism pushes the first ball in each counterweight ball bracket into the delivery mechanism; S5, the weighted ball falls and slides along the guide rail and is stopped by the baffle; S6, after the rotating mechanism horizontally rotates the delivery mechanism holding the weighted ball to the designed delivery angle, the baffle shaft rotates to remove the baffle, and the weighted ball continues to slide along the guide rail and is thrown out under the action of a set of rotating wheels. The group of weighted balls moves simultaneously and in opposite directions; S7, the rotating mechanism rotates the unloaded delivery mechanism back to the normal position, the baffle shaft rotates to return the baffle to its original position, and the conveying mechanism pushes the next group of weighted balls into the delivery mechanism; S8. Repeat steps S5 to S7 to complete the laying of a whole covering blanket.

[0016] The present invention has at least the following beneficial effects: First, the device for laying the bottom mud covering material of the present invention throws out the paired counterweight balls obliquely outward through the delivery mechanism, and the two obliquely outward counterweight balls drive the connected covering blankets, and the stacked covering blankets are unfolded in the air under the traction of the counterweight balls. As the ship moves forward, the delivery mechanism and the conveying mechanism continuously throw out the counterweight balls in groups, and finally lay a whole covering blanket. The same ship only needs to lay multiple parallel covering blankets to complete the biological blanket laying work in a large area of ​​water. The efficiency of the present invention is greatly improved compared with manual laying or other laying devices and forms; Second, the device for laying the bottom mud covering material of the present invention, the weighted balls thrown into the water drive the covering blanket to complete the falling in the water. During the falling process, the covering blanket is kept straight due to the stretching effect of the two rows of weighted balls on the long sides. The falling process will not be affected by the water flow and will not curl, so it can effectively cover the bottom mud layer; Thirdly, the device for laying bottom mud covering materials of the present invention is a covering blanket covering the bottom mud layer. Since the covering blanket is still connected to the weighted ball, it is not easy to be lifted up by water flow disturbance after laying. Compared with other forms of covering methods, the covering effect on the bottom mud layer is better.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a device for laying bottom mud covering material in a technical solution of the present invention; Figure 2 It is a schematic diagram of the laying operation of the covering blanket in one technical solution of the present invention; Figure 3 It is a side schematic diagram of a device for laying bottom mud covering material in a technical solution of the present invention; Figure 4 It is a cross-sectional schematic diagram of a weight ball bracket in a technical solution of the present invention; Figure 5 A schematic diagram of a conveying mechanism in a technical solution of the present invention; Figure 6 It is a schematic diagram of the installation of the conveying mechanism and the counterweight ball bracket in a technical solution of the present invention; Figure 7 It is a schematic diagram of a delivery mechanism in a technical solution of the present invention; Figure 8 It is a disassembly schematic diagram of a delivery mechanism in a technical solution of the present invention; Fig. 9 A schematic diagram of a group of rotating wheels in a technical solution of the present invention; Fig.10 It is a cross-sectional schematic diagram of a rotating mechanism in a technical solution of the present invention; Fig.11 It is a schematic diagram of a weighted ball entering a delivery mechanism in a technical solution of the present invention; Fig.12 It is a side schematic diagram of a delivery mechanism in a technical solution of the present invention; Fig.13 It is a cross-sectional schematic diagram of a stacked covering blanket in a technical solution of the present invention; Fig.14 It is a schematic diagram of unfolding a covering blanket in a technical solution of the present invention; Fig.15 It is a schematic diagram of a weighted ball in a technical solution of the present invention.

[0019] Legend: 1-ship, 2-cover blanket, 20-edge hole, 3-weight ball, 301-weight ball shell, 302-weight object, 303-threaded cover, 31-connecting rope, 4-delivery mechanism, 40-rotation mechanism, 401-rotation motor, 4011-rotation gear, 402-rotation bearing, 4021-bearing inner ring, 4022-bearing outer ring, 41-rotation wheel, 411-rotation wheel motor, 42-first Connecting frame, 421-rotating support, 422-second connecting frame, 43-guide rail, 44-baffle, 441-baffle motor, 442-baffle shaft, 5-conveying mechanism, 50-fixed seat, 500-screw motor, 501-threaded screw, 502-guide rod, 51-slider, 511-pushing block, 6-support frame, 61-frame transverse beam, 62-frame longitudinal beam, 620-counterweight ball bracket. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can implement the invention with reference to the description.

[0021] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0022] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the structures and components can be obtained from commercial sources unless otherwise specified; in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances. The orientation or position relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0023] like Figures 1 to 15 As shown, the present invention provides a device for laying bottom mud covering materials, which is installed on a ship 1, and includes: a covering blanket 2, on which counterweight balls 3 are flexibly connected at intervals and symmetrically on two long sides of the blanket body; a supporting frame 6, on which the counterweight balls 3 on each side of the covering blanket 2 are arranged in a row; two delivery mechanisms 4, which are correspondingly installed at one end of the row of counterweight balls 3, and the delivery mechanism 4 includes a group of relative and spaced rotating wheels 41, wherein a group of rotating wheels 41 applies a force to the counterweight balls 3 entering the interval area thereof by reverse rotation, so that the counterweight balls 3 have an initial velocity and pull the covering blanket 2 to move in a straight line; a conveying mechanism 5, which is used to push the front counterweight balls 3 of each row into the delivery mechanism 4 one by one.

[0024] In the present technical solution, the covering blanket 2 is a mesh or blanket-shaped finished product that is easily purchased on the market. A row of edge holes 20 are arranged on the blanket body at the two long sides of the covering blanket 2. The edge holes 20 can be installed with rings to avoid tearing due to force. The counterweight ball 3 is a solid sphere. The outer shell of the counterweight ball 3 is made of metal material or other hard materials. The counterweight ball 3 has a certain deformation ability and can produce elastic deformation or plastic deformation when squeezed. The counterweight ball 3 is connected to the covering blanket 2 through a connecting cable 31. The connecting cable 31 can be a metal chain or rope, and the end of the connecting cable 31 is hung on the edge hole 20.

[0025] In the present technical solution, the support frame 6 is a rigid beam and column structure that can be easily purchased from the market and can be assembled by bolts or other node forms. It is installed on the ship 1 before the laying operation. The assembled support frame 6 includes at least two groups of frame longitudinal beams 62 parallel to the axis of the ship 1. The frame longitudinal beams 62 can be in the form of two spaced longitudinal beams. The interval between a group of longitudinal beams is smaller than the diameter of the counterweight ball 3. The counterweight balls 3 arranged in a row are jointly supported by the interval between the two longitudinal beams. The interval between the two longitudinal beams of the frame longitudinal beams 62 is convenient for a row of connecting cables 31 to pass through. The covering blanket 2 is hung on the support frame 6 through the counterweight balls 3 arranged on both sides. The covering blanket 2 is tightly stacked in a wavy manner in the length direction. Optionally, as Figure 1 , Figure 3 As shown, the covering blanket 2 between every two groups of counterweight balls 3 is folded once on the supporting frame 6. The length L of the covering blanket 2 that can be laid at one time can be simplified to be calculated as L=2×h×(n-1), where h is the height of the counterweight balls 3 from the surface of the ship 1, and n is the number of counterweight balls 3 in each row. For a ship 1 of conventional size, the single laying length can easily reach more than 200m, greatly improving the laying efficiency.

[0026] In the present technical solution, the delivery mechanism 4 is installed at the front end of a row of counterweight balls 3, and the two rotating wheels 41 in the delivery mechanism 4 are arranged horizontally and spaced apart. The two rotating wheels 41 keep rotating in opposite directions to each other under the drive of the rotating wheel motor 411. The interval area between the two driving wheels 41 is used to apply pressure and provide friction to the counterweight balls 3 entering therein. The counterweight balls 3 are inertially thrown out under the action of the rotating wheels 41 on both sides, wherein the structure of the rotating wheels 41 and the rotating wheel motor 411 does not collide or conflict with the connecting rope 31 and the covering blanket 2. , a group of counterweight balls 3 are inertially thrown out at the same time. The throwing direction of the counterweight balls 3 can be parallel to the forward route of the ship 1, or it can be thrown obliquely to the outside of the ship 2. The counter-moving group of counterweight balls 3 unfolds the covering blanket 2 before entering the water. It should be noted that the throwing time of each group of counterweight balls 3 needs to be accurately controlled to avoid dragging on the already thrown covering blanket 2 due to failure to throw the balls in time. The conveying mechanism 5 can be in the form of a screw slide, or it can be in other forms such as a manipulator to push the counterweight balls 3 between the rotating wheels 41 one by one. The present invention delivers the paired counterweight balls 3 in a straight line through the delivery mechanism 4. The two counterweight balls 3 thrown obliquely outward pull the connected covering blanket 2 to unfold it. The ship 1 can complete the laying task by moving forward at a uniform speed, and the efficiency is greatly improved compared with other laying devices and laying methods; secondly, the counterweight balls 3 thrown into the water drive the covering blanket 2 to complete the fall in the water. During the falling process, the covering blanket 2 will not curl due to the influence of the water flow due to the stretching effect of the two rows of counterweight balls 3 on the long sides, and the covering blanket 2 can effectively and evenly cover the bottom mud layer; finally, the covering blanket 2 in the present invention is always connected to the counterweight balls 3, and is not easily lifted up by the disturbance of the water flow after laying, and the covering effect on the bottom mud layer is better than other forms of covering methods.

[0027] In another technical solution, the support frame 6 includes two groups of counterweight ball brackets 620 that are spaced apart and parallel to the axis of the ship 1. The counterweight ball brackets 620 are two opposite and spaced L-shaped beams. The counterweight balls 3 on the same side are arranged one by one in the counterweight ball brackets 620. The counterweight balls 3 are supported by two opposite bottom edges of the counterweight ball brackets 620. The connection structure between the counterweight balls 3 and the covering blanket 2 passes through the interval between the two L-shaped beams of the counterweight ball brackets 620. A row of counterweight balls 3 enter the delivery mechanism 4 one by one from the end of the counterweight ball brackets 620. Figure 4 As shown, the counterweight ball bracket 620 is two L-shaped beams connected in parallel to the longitudinal beam 62 of the frame. The counterweight ball bracket 620 uses the edges of the bottom sides of the two L-shaped beams to jointly support the counterweight ball 3, and the connecting rope 31 connecting the counterweight ball 3 is not affected by the counterweight ball bracket 620.

[0028] In another technical solution, a group of rotating wheels 41 is lower than the end of the counterweight ball bracket 620, and a group of spaced and parallel guide rails 43 are installed between the end of the counterweight ball bracket 620 and the corresponding group of rotating wheels 41, wherein the counterweight ball 3 falls from the end of the counterweight ball bracket 620 to between the group of guide rails 43, and is guided to slide into the spaced area of ​​the group of rotating wheels 41 under the common support of the group of guide rails 43. In this technical solution, Fig.11 , Fig.12 As shown, the rotating wheel 41 is lower than the counterweight ball bracket 620, the guide rail 43 is a plate-shaped or round steel frame, a group of guide rails 43 are connected to the delivery mechanism 4, a group of guide rails 43 are arranged at intervals, and the connecting rope 31 passes through the intervals between the guide rails 43, wherein the counterweight ball 3 ejected from the end of the counterweight ball bracket 620 is supported by the upper edge of a group of guide rails 43, and under the action of its own weight and the guidance of the guide rails 43, enters between the intervals of a group of rotating wheels 41.

[0029] In another technical solution, the conveying mechanism 5 is installed above the counterweight ball bracket 620, and the conveying mechanism 5 includes two fixed seats 50, a group of guide rods 502 are fixedly connected between the two fixed seats 50, and a threaded screw 501 is connected to the bearing between the two fixed seats 50, one end of the threaded screw 501 is transmission-connected to a screw motor 500, and a slider 51 is matched and sleeved on the threaded screw 501 and the guide rod 502, and a push block 511 is connected under the slider 51, and the push block 511 extends into the counterweight ball bracket 620 and contacts the counterweight ball 3 farthest from the delivery mechanism 4, wherein when the push block 511 moves horizontally toward the delivery mechanism 4, the push block 511 pushes a row of counterweight balls 3 push forward, in this technical solution, two fixed seats 50 are fixed on the support frame 6, the slider 51, the threaded screw 501, the guide rod 502, the fixed seat 50, and the screw motor 500 are all finished components that are easy to process or obtain on the market, wherein the slider 51 is provided with a through hole that matches the threaded screw 501, and the slider 1 is provided with a ball that can be threaded along the threaded screw 501 for cyclic rolling. The screw motor 500 is a finished servo motor, and its moving part is connected to the threaded screw 501 through a coupling and other devices. When the threaded screw 501 rotates, the slider 51 completes the movement under the joint action of the threaded screw 501 and the guide rod 502, and a pushing block 511 is installed at the lower part of the slider 51, as shown in FIG. Figure 6 As shown, the block body of the pushing block 511 extends down through the gap in the longitudinal beam 62 of the frame, and extends down to the counterweight ball bracket 620. The pushing block 511 acts on the last counterweight ball 3, pushing up a row of counterweight balls 3, and by precisely controlling the operation of the screw motor 500, the effect of pushing down the counterweight balls 3 one by one is achieved.

[0030] In another technical solution, the delivery mechanism 4 also includes two mounting seats 412, each mounting seat 412 is connected to a rotating wheel 41 on a bearing, the upper parts of the two mounting seats 412 are connected to a first connecting frame 42, the upper part of the first connecting frame 42 is connected to a rotating mechanism 40, wherein the rotating part of the rotating mechanism 40 is connected to the first connecting frame 42, and the fixed part of the rotating mechanism 40 is connected to the support frame body 6. In this technical solution, the first connecting frame 42 does not collide with the connecting rope 31, and the rotating mechanism 40 can be a servo motor assembly, a rotating disk or other forms of rotating structure fixed on the support frame body 6. The rotating mechanism 40 can change the direction of the rotating wheel 41 horizontally before the counterweight ball 3 reaches the interval area of ​​a group of rotating wheels 41, so as to achieve the purpose of oblique delivery of the counterweight ball 3. After the delivery of this group of counterweight balls 3 is completed, the rotating mechanism 40 drives the delivery mechanism 4 to rotate and reset, so that the delivery mechanism 4 can receive the next fallen counterweight ball 3.

[0031] In another technical solution, the top of the first connecting frame 42 is connected to a rotating support 421, the rotating mechanism 40 includes a rotating bearing 402, the rotating bearing 402 includes a bearing inner ring 4021 and a bearing outer ring 4022 in which the bearings are nested, the top of the bearing inner ring 4021 is fixed with a bearing fixing seat 400, the bottom of the bearing outer ring 4022 is connected to the rotating support 421, the outer periphery of the bearing outer ring 4022 is provided with a circle of tooth grooves, the bearing fixing seat 400 is installed with a rotating motor 401, and the rotating motor 401 The rotor transmission is connected with rotating teeth 4011, and the rotating teeth 4011 are meshed with the tooth grooves on the outer periphery of the bearing outer ring 4022, wherein the rotating motor 401 is connected to the bearing fixing seat 400 by means of a bracket, and the bearing fixing seat 400 is fixed to the frame transverse beam 61 by bolts or other means, and the rotating motor 401 and the rotating teeth 4011 can be matched and transmitted by means of a coupling or a reducer. The rotating motor 401 rotates the bearing outer ring 4022 through the rotating teeth 4011, thereby changing the projection direction of a group of rotating wheels 41 below.

[0032] In another technical solution, a baffle shaft 442 is installed on the first connecting frame 42, one end of the baffle shaft 442 is transmission-connected to a baffle motor 441, and the baffle shaft 442 is downwardly connected to a baffle 44, and the baffle 44 is located between a group of guide rails 43, wherein when the counterweight ball 3 slides on the guide rails 43, the counterweight ball 3 is blocked by the downward baffle 44 and stops, and after the baffle motor 441 controls the baffle 44 to rotate and move away, the counterweight ball 3 continues to slide along the guide rails 43. In this technical solution, Figure 7 , Figure 8As shown, the first connecting frame 42 is connected to the second connecting frame 422, and the baffle motor 441 is installed on the second connecting frame 422. One end of the baffle shaft 442 is transmission-connected to the baffle motor 441, wherein the baffle motor 441 controls the rotation of the baffle shaft 442 so that the baffle 44 forms a blocking or non-blocking relationship on the downward path of the counterweight ball 3. In this way, by controlling the position of the baffle 44, the state of the counterweight ball 3 on the guide rail 43 is divided into a waiting state and a delivery state, which is convenient for accurately controlling the projection of the counterweight ball 3.

[0033] In another technical solution, the middle part of the covering blanket 2 is overlapped multiple times, and the overlap line is parallel to the long side of the covering blanket 2, wherein the width of the overlapping covering blanket 2 is smaller than the covering blanket 2 before overlapping. Fig.13 Two overlapping modes of the covering blanket 2 are shown. The covering blanket 2 is unfolded as the weighted ball 3 is thrown out, and the effective laying width formed is more than twice the width in the overlapping state.

[0034] In another technical solution, the balancing ball 3 includes a balancing ball shell 301 and a threaded cover 303. The balancing ball shell 301 is provided with an opening threadedly connected to the threaded cover 303. The balancing ball shell 301 is filled with a balancing weight 302. The balancing weight 302 can be mud and sand obtained on site or specially formulated iron sand. Optionally, the balancing ball shell 301 can also be made of metal, plastic or rubber. It is necessary to ensure that the balancing ball 3 is easy to push in the balancing ball bracket 620. The balancing ball shell 301 can undergo plastic deformation after passing through a set of rotating wheels 41 without leaking the balancing weight 302.

[0035] In another technical solution, the working method of the above-mentioned bottom mud covering material laying device includes the following steps: S1. Fill the balancing ball shell 301 with sand and gravel as the balancing weight 302, and connect the connecting rope 31 of the same length to all the balancing balls 3; specifically, the balancing ball shell 301 and the connecting rope 31 are uniformly processed and transported to the shore, and the sand and gravel on site can be used to fill the inside of the balancing ball shell 301. After ensuring that the inside is densely filled, screw on the threaded cover 301 to complete the connection between the balancing ball 3 and the connecting rope 31.

[0036] S2. The ends of the connecting ropes 31 are hung on the two long sides of the covering blanket 2 at intervals and symmetrically, and then the counterweight balls 3 are inserted into the counterweight ball brackets 620 on the corresponding sides in groups of two from the ends; specifically, after the rolled covering blanket 2 arrives at the site, the covering blanket 2 is overlapped, the blanket body on the two long sides of the covering blanket 2 is spread out, holes are punched and the connecting ropes 31 are tied, and the counterweight balls 3 are inserted into the counterweight ball brackets 620 in groups of two, so that the covering blanket 2 is finally hung on the support frame 6 in a wave shape.

[0037] S3, the covering blanket 2 is hung through the rows of counterweight balls 3 on both sides, and the delivery mechanism 4 is installed at the front end of the counterweight ball bracket 620.

[0038] S4, start the two sets of rotating wheels 41, the ship 1 drives straight into the laying starting point and drives straight at a constant speed. The conveying mechanism 5 pushes the first ball in each counterweight ball bracket 620 into the delivery mechanism 4; the ship 1 drives straight at a constant speed into the starting point of the predetermined laying route, and the laying operation of the covering blanket 2 starts at this time.

[0039] S5, the weighted ball 3 falls and slides along the guide rail 43, and is stopped by the baffle 44.

[0040] S6. After the rotating mechanism 40 horizontally rotates the delivery mechanism 4 holding the counterweight ball 3 to the designed delivery angle, the baffle shaft 442 rotates to remove the baffle 44, and the counterweight ball 3 continues to slide along the guide rail 43 and is thrown out under the action of a group of rotating wheels 41. The group of counterweight balls 3 moves simultaneously and in opposite directions; specifically, it is necessary to calculate and control the forward speed of the ship 1, the throwing speed of the counterweight ball 3, the throwing angle of the counterweight ball 3, and the throwing frequency of the counterweight ball 3 to avoid the situation where the ship 1 pulls the thrown covering blanket 2.

[0041] S7, the rotating mechanism 40 rotates the unloaded delivery mechanism 4 back to the normal position, the baffle shaft 442 rotates to return the baffle 44 to its original position, and the conveying mechanism 5 pushes the next group of counterweight balls 3 into the delivery mechanism 4.

[0042] S8, repeat steps S5 to S7 to complete the laying of a whole covering blanket 2; specifically, Figure 2 As shown, after the ship 1 has laid a whole strip of covering blanket 2, it continues to lay the next strip of covering blanket 2 in a straight line beside the laid strip to complete the laying work in the entire water area.

[0043] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for laying bottom mud covering material, installed on a ship (1), characterized in that: include: A covering blanket (2) having weighted balls (3) flexibly connected to the two long sides of the blanket at intervals and symmetrically; A support frame (6), wherein the weighted balls (3) on each side of the cover blanket (2) are arranged in a row on the support frame (6); Two delivery mechanisms (4), each of which is mounted at one end of a row of counterweight balls (3), and each of which comprises a group of rotating wheels (41) that are opposite and spaced apart, wherein one group of rotating wheels (41) exerts a force on the counterweight balls (3) that enter the spaced apart area thereof by counter-rotating, so that the counterweight balls (3) have an initial velocity and pull the covering blanket (2) to perform linear motion; The conveying mechanism (5) is used to push the front weight balls (3) in each row into the delivery mechanism (4) one by one.

2. The bottom mud covering material laying device according to claim 1, characterized in that: The support frame (6) comprises two groups of counterweight ball brackets (620) spaced apart and parallel to the axis of the ship (1); the counterweight ball brackets (620) are two opposite and spaced L-shaped beams; the counterweight balls (3) on the same side are arranged one by one in the counterweight ball brackets (620); the counterweight balls (3) are supported by two opposite bottom edges of the counterweight ball brackets (620); the connection structure between the counterweight balls (3) and the covering blanket (2) passes through the space between the two L-shaped beams of the counterweight ball brackets (620); wherein a row of counterweight balls (3) enter the delivery mechanism (4) one by one from the end of the counterweight ball brackets (620).

3. The bottom mud covering material laying device according to claim 2, characterized in that: A group of rotating wheels (41) is lower than the end of the counterweight ball bracket (620), and a group of spaced and parallel guide rails (43) are installed between the end of the counterweight ball bracket (620) and the corresponding group of rotating wheels (41), wherein the counterweight ball (3) falls from the end of the counterweight ball bracket (620) to between the group of guide rails (43), and is guided to slide into the spaced area of ​​the group of rotating wheels (41) under the common support of the group of guide rails (43).

4. The device for laying bottom mud covering material according to claim 2, characterized in that: The conveying mechanism (5) is installed above the counterweight ball bracket (620), and the conveying mechanism (5) comprises two fixed seats (50), a group of guide rods (502) are fixedly connected between the two fixed seats (50), a threaded screw (501) is bearing-connected between the two fixed seats (50), one end of the threaded screw (501) is transmission-connected to a screw motor (500), a slider (51) is matched and sleeved on the threaded screw (501) and the guide rod (502), a push block (511) is connected below the slider (51), the push block (511) extends into the counterweight ball bracket (620) and contacts the counterweight ball (3) farthest from the delivery mechanism (4), wherein when the push block (511) moves horizontally toward the delivery mechanism (4), the push block (511) pushes a row of counterweight balls (3) forward.

5. The bottom mud covering material laying device according to claim 3, characterized in that: The delivery mechanism (4) further comprises two mounting seats (412), each mounting seat (412) being connected to a rotating wheel (41) by a bearing, the upper parts of the two mounting seats (412) being connected to a first connecting frame (42), the upper part of the first connecting frame (42) being connected to a rotating mechanism (40), wherein the rotating part of the rotating mechanism (40) is connected to the first connecting frame (42), and the fixed part of the rotating mechanism (40) is connected to the supporting frame body (6).

6. The device for laying bottom mud covering material according to claim 5, characterized in that: The top of the first connecting frame (42) is connected to a rotating support (421); the rotating mechanism (40) comprises a rotating bearing (402); the rotating bearing (402) comprises a bearing inner ring (4021) and a bearing outer ring (4022) in which the bearings are nested; a bearing fixing seat (400) is fixed to the top of the bearing inner ring (4021); the bottom of the bearing outer ring (4022) is connected to the rotating support (421); a circle of tooth grooves is provided on the outer periphery of the bearing outer ring (4022); a rotating motor (401) is installed on the bearing fixing seat (400); the rotor of the rotating motor (401) is transmission-connected with rotating teeth (4011); the rotating teeth (4011) are meshed with tooth grooves on the outer periphery of the bearing outer ring (4022).

7. The device for laying bottom mud covering material according to claim 5, characterized in that: A baffle shaft (442) is installed on the first connecting frame (42), one end of the baffle shaft (442) is transmission-connected to a baffle motor (441), the baffle shaft (442) is downwardly connected to a baffle (44), and the baffle (44) is located between a group of guide rails (43), wherein when the counterweight ball (3) slides down on the guide rail (43), the counterweight ball (3) is blocked by the downward baffle (44) and stops, and after the baffle motor (441) controls the baffle (44) to rotate and move away, the counterweight ball (3) continues to slide down along the guide rail (43).

8. The device for laying bottom mud covering material according to claim 5, characterized in that: The middle part of the covering blanket (2) is overlapped multiple times, and the overlap lines are parallel to the long sides of the covering blanket (2), wherein the width of the covering blanket (2) after overlap is smaller than that of the covering blanket (2) before overlap.

9. The device for laying bottom mud covering material according to claim 1, characterized in that: The counterweight ball (3) comprises a counterweight ball shell (301) and a threaded cover (303); an opening is provided on the counterweight ball shell (301) and is threadedly connected to the threaded cover (303); and a counterweight object (302) is filled inside the counterweight ball shell (301).

10. A method for laying a bottom mud covering material, applied to a device for laying a bottom mud covering material according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, filling the counterweight ball shell (301) with sand and gravel as counterweights (302), and connecting connecting ropes (31) of the same length to all the counterweight balls (3); S2, the ends of the connecting rope (31) are hung on the two long sides of the covering blanket (2) at intervals and symmetrically, and then the weighted balls (3) are inserted into the weighted ball brackets (620) on the corresponding sides in groups of two from the ends; S3, the covering blanket (2) is hung through the counterweight balls (3) arranged in rows on both sides, and a delivery mechanism (4) is installed at the front end of the counterweight ball bracket (620); S4, starting the two sets of rotating wheels (41), the ship (1) moves in a straight line into the laying starting point and moves in a straight line at a constant speed, and the conveying mechanism (5) pushes the first ball in each counterweight ball bracket (620) out of the counterweight ball bracket (620); S5, the weighted ball (3) falls and slides along the guide rail (43), and is stopped by the baffle (44); S6, after the rotating mechanism (40) horizontally rotates the delivery mechanism (4) holding the weighted ball (3) to the designed delivery angle, the baffle shaft (442) rotates to remove the baffle (44), and the weighted ball (3) continues to slide along the guide rail (43) and is thrown out under the action of a group of rotating wheels (41), and the group of weighted balls (3) move simultaneously and in opposite directions; S7, the rotating mechanism (40) rotates the empty delivery mechanism (4) back to the normal position, the baffle shaft (442) rotates to return the baffle (44) to its original position, and the conveying mechanism (5) pushes the next group of counterweight balls (3) out of the counterweight ball bracket (620); S8. Repeat steps S5 to S7 to complete the laying of a whole covering blanket (2).

Images