A device for automatically spreading sand on the slope of a water conservancy project

Abstract

The invention discloses a device for automatically spreading sand on the inclined surface of a water conservancy project, comprising: a sand-spreading track, which is inclined; a gate-type upper leg device, which is arranged at the upper end of the sand-spreading track and connected to the sand-spreading track, and a winch is arranged on the gate-type upper leg device; a gate-type lower leg device, which is arranged at the lower end of the sand-spreading track and connected to the sand-spreading track; a sand transport vehicle, which is slidably arranged on the sand-spreading track, and the winch is detachably connected to the sand transport vehicle through a pull rope, and an automatic unloading device is arranged on the sand transport vehicle; a spiral leveling machine, which is slidably arranged on the sand-spreading track, and the winch is detachably connected to the spiral leveling machine through a pull rope. The device for automatically spreading sand on the inclined surface of a water conservancy project can effectively reduce the intensity of manual labor, improve the efficiency of sand-spreading, ensure the uniform thickness of sand-spreading, and will not cause damage to the laid geomembrane.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, and in particular to a device for automatically spreading sand on a slope of a water conservancy project. Background Art

[0002] In order to meet the needs of rapid economic and social development, solve the problem of uneven spatial and temporal distribution of water resources, and the increasing demand for water in various places, it is urgent to improve the utilization rate of water resources. Engineering water shortage in most parts of Yunnan has become a major factor seriously restricting local development. Most mountainous areas are karst landforms with well-developed karst, which is often seen in caves and underground rivers. The existing domestic exploration technology is difficult to fully explore the specific leakage locations of all caves and underground rivers, resulting in many reservoirs being built in leakage areas or leaking as soon as they are built.

[0003] The most common solution for reservoir leakage treatment is to lay geomembranes. Before and after laying geomembranes, sand needs to be laid as a cushion layer, filter layer or protective layer. The traditional construction method of laying sand on geomembranes is to manually pull and flatten the sand, which not only consumes manpower and material resources, has low efficiency, and cannot ensure uniform thickness of sand, but also easily causes artificial damage to the laid geomembranes, which is one of the main reasons for the failure of geomembrane anti-seepage solutions. Summary of the invention

[0004] The main purpose of the present invention is to provide a device for automatically spreading sand on the slope of a water conservancy project, which can reduce manual labor intensity, improve sand spreading efficiency, ensure uniform sand spreading thickness, and will not cause damage to the laid geomembrane.

[0005] In order to achieve the above object, the present invention provides a device for automatically spreading sand on the slope of a water conservancy project, comprising:

[0006] Sand laying track, the sand laying track is set at an angle;

[0007] The gate-type upper outrigger device is arranged at the upper end of the sand-laying track and connected to the sand-laying track. A winch is arranged on the gate-type upper outrigger device;

[0008] The door-type lower leg device is arranged at the lower end of the sand-laying track and connected to the sand-laying track;

[0009] The sand transport vehicle is slidably arranged on the sand laying track, the winch is detachably connected to the sand transport vehicle through a pull rope, and the sand transport vehicle is provided with an automatic unloading device;

[0010] The spiral leveler is slidably arranged on the sand-laying track, and the winch is detachably connected to the spiral leveler through a pull rope.

[0011] Furthermore, the sand transport vehicle comprises:

[0012] A transport vehicle chassis, the transport vehicle chassis is slidably arranged on the sand-laying track through transport track wheels;

[0013] The scoop is installed above the chassis of the transport vehicle, the rear end of the scoop is hinged to the rear end of the chassis of the transport vehicle, the rear end of the scoop is provided with a scoop door, the upper end of the scoop door is hinged to the upper side of the rear end of the scoop;

[0014] The automatic unloading device is used for turning up the cart pocket toward the rear end and opening the cart pocket door for unloading at the same time.

[0015] Furthermore, the automatic unloading device comprises:

[0016] The cart hood lifting hydraulic push rod is installed at the front end of the cart hood, one end of the cart hood lifting hydraulic push rod is hingedly installed on the chassis of the transport vehicle, and the other end of the cart hood lifting hydraulic push rod is hingedly installed on the cart hood;

[0017] A connecting rod, one end of which is hingedly installed on the chassis of the transport vehicle, and the other end of the connecting rod is hingedly connected to a rotating arm, and the other end of the rotating arm is fixedly connected to a hinge shaft where the hood door is hinged to the hood; the connecting rod and the rotating arm are used to open the hood door when the hood lifting hydraulic push rod lifts the hood, and to close the hood door when the hood lifting hydraulic push rod lowers the hood.

[0018] Furthermore, a plurality of material dividing guide plates are provided in the scooter pocket, the material dividing guide plates are gradually inclined outward from the front end to the rear end of the scooter pocket, and the plurality of material dividing guide plates are symmetrically arranged along the center line of the length direction of the scooter pocket.

[0019] Furthermore, the side panels of the hood gradually increase in height from the front end to the rear end of the hood.

[0020] Furthermore, a supporting wheel device is provided below the chassis of the transport vehicle, and a brake device and a rail clamp are also provided on the chassis of the transport vehicle.

[0021] Furthermore, the sand-laying track includes a first track and a second track, the second track is located below the first track, and the first track and the second track are connected by a truss structure.

[0022] Furthermore, a hopper is provided on the door-type upper leg device above the sand-laying track, and an electric single-beam suspension crane is provided above the hopper.

[0023] Further, the spiral flattening machine comprises:

[0024] The flattening locomotive body is slidably arranged on the sand-laying track by means of a flattening machine track wheel;

[0025] A spiral shaft mounting frame, on which a spiral flattening shaft is mounted;

[0026] The hydraulic telescopic arm is installed at the front and rear ends of the flattening locomotive body, and the piston rod of the hydraulic telescopic arm is connected with the spiral shaft mounting frame.

[0027] Furthermore, the upper end of the sand-laying track is connected to the door-type upper leg device through a universal joint spherical shaft head, and the lower end of the sand-laying track is connected to the door-type lower leg device through a universal joint.

[0028] Furthermore, a plurality of track brackets are provided on the sand-laying track, the top of the gate-type upper leg device is connected to the track bracket through an inclined steel rope, and the top of the gate-type lower leg device is connected to the track bracket through an inclined steel rope.

[0029] Furthermore, the gate-type upper leg device and the gate-type lower leg device each include a gate-type leg frame, and the gate-type leg frame is composed of a plurality of connecting rods connected by bolts.

[0030] Furthermore, a leg height adjustment structure is provided at the bottom of the door-shaped leg frame, and the leg height adjustment structure includes:

[0031] Lifting nut, fixedly installed at the bottom of the door-type outrigger frame;

[0032] A lifting screw rod is inserted into the lifting nut, the lifting screw rod is threadedly connected with the lifting nut, and a universal joint spherical head is arranged at the lower end of the lifting screw rod;

[0033] A ball head seat, the ball head seat is provided with a hemispherical groove, and the universal joint spherical head is arranged in the hemispherical groove;

[0034] The ball head seat gland is installed on the ball head seat by bolt connection. The ball head seat gland is provided with a gland groove. The ball head seat gland buckles the universal joint spherical head in the hemispherical groove and the gland groove.

[0035] Furthermore, a leg moving structure is provided at the bottom of the door-shaped leg frame, and the leg moving structure includes:

[0036] The movable structure ball head seat is installed at the bottom of the door-type leg frame through the track wheel shaft, and the bottom of the movable structure ball head seat is provided with a track wheel ball head groove;

[0037] A movable structure ball head bracket, on which a movable structure universal joint ball head is provided;

[0038] The moving structure ball head gland is installed under the moving structure ball head seat by bolt connection, and the moving structure universal joint ball head is buckled into the track wheel ball head groove;

[0039] The walking roller is rotatably mounted on the ball head bracket of the moving structure.

[0040] Furthermore, two walking rollers are installed in parallel on the ball head bracket of the moving structure.

[0041] Further, the winch comprises:

[0042] The machine base is installed on the door-type upper leg device;

[0043] The reel is rotatably mounted on the machine base, and a pull rope is arranged around the reel;

[0044] The hoisting motor is installed on the machine base, the output shaft of the hoisting motor is connected to the drum, and the hoisting motor is used to drive the drum to rotate.

[0045] Furthermore, the drum includes a first drum and a second drum, a first balancing pulley is provided on the machine base corresponding to the first drum, a second balancing pulley is provided on the machine base corresponding to the second drum, and an isolation tooth is provided on the first drum and the second drum, the isolation tooth separates the first drum into a first rope winding area and a second rope winding area, and the isolation tooth separates the second drum into a third rope winding area and a fourth rope winding area. The front end of the sand transport vehicle is equipped with a first transport vehicle pulley, a second transport vehicle pulley, a third transport vehicle pulley and a fourth transport vehicle pulley side by side, the pull rope on the first rope winding area passes around the first transport vehicle pulley, the first balancing pulley and the second transport vehicle pulley in turn, and then is connected to the second rope winding area, the pull rope on the third rope winding area passes around the third transport vehicle pulley, the second balancing pulley and the fourth transport vehicle pulley in turn, and then is connected to the fourth rope winding area.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] The automatic sand-laying device of the present invention is provided with a gate-type upper leg device and a gate-type lower leg device at the upper and lower ends of the inclined surface of the water conservancy project to be sand-laid, respectively, and a sand-laying track is connected between the gate-type upper leg device and the gate-type lower leg device, and a sand-carrying vehicle and a spiral leveler are slidably arranged on the sand-laying track, and the sand-carrying vehicle and the spiral leveler are pulled by a winch to slide along the sand-laying track; when the sand-carrying vehicle moves upward along the sand-laying track, the automatic unloading device opens the sand-carrying vehicle to lay sand. The automatic sand-laying device can effectively reduce the manual labor intensity of the sand-laying operation, improve the sand-laying efficiency, ensure the uniform thickness of the sand-laying, and when sand-laying is performed on the laid geomembrane, the geomembrane will not be damaged.

[0048] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0050] Figure 1 Schematic diagram of the overall structure of the automatic sand-laying device according to an embodiment of the present invention.

[0051] Figure 2It is a schematic structural diagram of a sand transport vehicle in an automatic sand laying device according to an embodiment of the present invention.

[0052] Figure 3 The figure is a schematic diagram of the structure of the sand material transport vehicle in the automatic sand laying device according to an embodiment of the present invention from a top view.

[0053] Figure 4 The figure is a schematic diagram of the top view of the chassis of the transport vehicle in the automatic sand-laying device according to an embodiment of the present invention.

[0054] Figure 5 It is a schematic structural diagram of a vehicle pocket in an automatic sand-laying device according to an embodiment of the present invention.

[0055] Figure 6 It is a schematic diagram of the structure of the sand-laying track in the automatic sand-laying device according to an embodiment of the present invention.

[0056] Figure 7 It is a schematic structural diagram of a spiral flattening machine in an automatic sand-laying device according to an embodiment of the present invention.

[0057] Figure 8 It is a schematic structural diagram of a spiral flattening shaft in an automatic sand-laying device according to an embodiment of the present invention.

[0058] Fig. 9 It is a structural schematic diagram of the support leg height adjustment structure in the automatic sand laying device according to an embodiment of the present invention.

[0059] Fig.10 It is a schematic diagram of the internal structure of the support leg height adjustment structure in the automatic sand laying device according to an embodiment of the present invention.

[0060] Fig.11 It is a schematic structural diagram of a ball head seat in an automatic sand-laying device according to an embodiment of the present invention.

[0061] Fig.12 It is a schematic diagram of the top structure of the ball head seat cover in the automatic sand laying device according to an embodiment of the present invention.

[0062] Fig.13 It is a schematic cross-sectional structural diagram of a ball head seat cover in an automatic sand laying device according to an embodiment of the present invention.

[0063] Fig.14 It is a schematic structural diagram of a lifting nut in an automatic sand-laying device according to an embodiment of the present invention.

[0064] Fig.15 It is a schematic cross-sectional structural diagram of a lifting nut in an automatic sand-laying device according to an embodiment of the present invention.

[0065] Fig.16 It is a schematic cross-sectional view of the structure of the supporting leg moving structure in the automatic sand laying device according to an embodiment of the present invention.

[0066] Fig.17It is a side structural schematic diagram of the support leg moving structure in the automatic sand-laying device according to an embodiment of the present invention.

[0067] Fig.18 It is a schematic structural diagram of the support leg moving structure in the automatic sand laying device according to an embodiment of the present invention after removing the moving structure ball head seat and the moving structure ball head pressure cover.

[0068] Fig.19 It is a schematic cross-sectional view of a movable structure ball head seat and a movable structure ball head pressure cover in an automatic sand laying device according to an embodiment of the present invention.

[0069] Fig. 20 It is a schematic cross-sectional view of a ball head seat of a movable structure in an automatic sand-laying device according to an embodiment of the present invention.

[0070] Fig.21 It is a schematic cross-sectional structure diagram of a ball head seat of a movable structure in an automatic sand-laying device according to an embodiment of the present invention along another direction.

[0071] Fig. 22 It is a schematic structural diagram of a ball head pressure cover of a movable structure in an automatic sand laying device according to an embodiment of the present invention.

[0072] Fig.23 It is a schematic cross-sectional view of a ball head pressure cover of a movable structure in an automatic sand laying device according to an embodiment of the present invention.

[0073] Fig.24 It is a schematic structural diagram of a winch in an automatic sand-laying device according to an embodiment of the present invention.

[0074] Fig.25 The figure is a schematic diagram of the top view of the structure of the winch in the automatic sand-laying device according to an embodiment of the present invention.

[0075] Fig.26 for Fig.24 Schematic diagram of the left view structure.

[0076] Fig. 27 Schematic diagram of the winding method of the winch rope in the automatic sand-laying device according to an embodiment of the present invention.

[0077] Fig.28 The figure is a schematic diagram of the top view of the structure of the machine base in the automatic sand-laying device according to an embodiment of the present invention.

[0078] Fig.29 It is a schematic structural diagram of a door-type lower leg device in an automatic sand-laying device according to an embodiment of the present invention.

[0079] Fig.30 It is a schematic structural diagram of a door-type upper leg device in an automatic sand-laying device according to an embodiment of the present invention.

[0080] Fig.31It is a schematic structural diagram of the other side of the door-type upper leg device in the automatic sand-laying device according to an embodiment of the present invention.

[0081] Fig.32 The present invention is a simplified structural diagram of a cart hood lifting hydraulic push rod and a limiting device in an automatic sand spreading device according to an embodiment of the present invention.

[0082] The above drawings include the following reference numerals:

[0083] 10. Sand laying track; 11. First track; 12. Second track; 13. Truss structure; 14. Track bracket; 20. Door-type upper outrigger device; 30. Door-type lower outrigger device; 40. Sand material transport vehicle; 41. Transport vehicle chassis; 42. Cargo scoop; 43. Cargo scoop lifting hydraulic push rod; 44. Connecting rod; 45. Swivel arm; 46. First transport vehicle pulley; 47. Second transport vehicle pulley; 48. Third transport vehicle pulley; 49. Fourth transport vehicle pulley; 50. Spiral leveling machine; 51, flattening locomotive body; 52, screw shaft mounting frame; 53, hydraulic telescopic arm; 60, winch; 61, machine base; 62, drum; 63, winch motor; 70, hopper; 80, electric single-beam suspension crane; 90, inclined steel rope; 100, door-type outrigger frame; 110, outrigger height adjustment structure; 111, lifting nut; 112, lifting screw; 113, ball head seat; 114, ball head seat gland; 120, outrigger moving structure; 121, moving structure 1. Ball head seat of structure; 122. Ball head bracket of mobile structure; 123. Ball head cover of mobile structure; 124. Walking roller; 130. Material transport road; 411. Transport road wheel; 412. Supporting wheel device; 421. Car pocket door; 422. Material distribution guide plate; 423. Side plate; 431. Retraction limit device; 432. Lifting limit device; 433. Limit device fixing frame; 434. Movable rod; 435. Limit cone; 511. Leveling machine road wheel; 512. Leveling car Support wheel; 521, spiral flattening shaft; 611, first balancing pulley; 612, second balancing pulley; 621, first drum; 622, second drum; 623, isolation tooth; 624, first rope winding area; 625, second rope winding area; 626, third rope winding area; 627, fourth rope winding area; 1121, universal joint ball head; 1131, hemispherical groove; 1141, pressure cover groove; 1211, track wheel ball head groove; 1221, mobile structure universal joint ball head. DETAILED DESCRIPTION

[0084] In order to facilitate the understanding of the present invention, the present invention will be described in more comprehensive and detailed manner in conjunction with the accompanying drawings and preferred embodiments below, but the protection scope of the present invention is not limited to the following specific embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0085] Unless otherwise defined, all technical terms used hereinafter have the same meaning as those generally understood by those skilled in the art. The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are merely for the convenience of distinguishing the corresponding parts. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0086] See also Figures 1 to 32 , an automatic sand-laying device on a water conservancy project slope according to an embodiment of the present invention, the automatic sand-laying device mainly comprises a sand-laying track 10, a gate-type upper leg device 20, a gate-type lower leg device 30, a sand transport vehicle 40 and a spiral leveler 50. The sand-laying track 10 is arranged obliquely along the water conservancy project slope to be sanded; the gate-type upper leg device 20 is arranged on the upper side of the water conservancy project slope to be sanded, and is connected to the upper end of the sand-laying track 10, and a winch 60 is also arranged on the gate-type upper leg device 20; the gate-type lower leg device 30 is arranged on the lower side of the water conservancy project slope to be sanded, and is connected to the lower end of the sand-laying track 10; the sand transport vehicle 40 is slidably arranged on the sand-laying track 10, and the winch 60 is connected to the sand transport vehicle 40 by a pull rope The sand transport cart 40 is detachably connected and is pulled by a winch 60 to slide on the sand-laying track 10. The sand transport cart 40 is also provided with an automatic unloading device. When the sand transport cart 40 moves upward along the sand-laying track 10, the automatic unloading device opens the sand transport cart 40 for sand laying. The spiral spreader 50 is slidably arranged on the sand-laying track 10. The winch 60 is detachably connected to the spiral spreader 50 by a pull rope. The spiral spreader 50 is pulled by the winch 60 to slide on the sand-laying track 10.

[0087] The above-mentioned automatic sand-laying device is provided with a gate-type upper leg device 20 and a gate-type lower leg device 30 at the upper and lower ends of the slope of the water conservancy project to be sand-laid, respectively, and the sand-laying track 10 is connected between the gate-type upper leg device 20 and the gate-type lower leg device 30, and the sand-laying track 10 is slidably provided with a sand-carrying vehicle 40 and a spiral leveler 50, and the sand-carrying vehicle 40 and the spiral leveler 50 are pulled by a winch 60 to slide along the sand-laying track 10, and when the sand-carrying vehicle 40 moves upward along the sand-laying track 10, the automatic unloading device opens the sand-carrying vehicle 40 to lay sand. The automatic sand-laying device can effectively reduce the labor intensity of the sand-laying operation, improve the sand-laying efficiency, ensure the uniform thickness of the sand-laying, and when the sand-laying is performed on the laid geomembrane, the geomembrane will not be damaged.

[0088] Specifically, see Figures 2 to 5 In this embodiment, the sand transport vehicle 40 includes a transport vehicle chassis 41 and a vehicle cover 42. A plurality of transport track wheels 411 are provided on the lower side of the transport vehicle chassis 41. The transport vehicle chassis 41 is slidably arranged on the sand paving track 10 through the transport track wheels 411. The vehicle cover 42 is installed above the transport vehicle chassis 41. The rear end of the vehicle cover 42 (i.e. Figure 2 The left middle end) is hinged to the rear end of the transport vehicle chassis 41, and a hood door 421 is provided at the rear end of the hood 42, and the upper end of the hood door 421 is hinged to the upper side of the rear end of the hood 42; the automatic unloading device is installed on the transport vehicle chassis 41 and the hood 42, and the automatic unloading device flips the hood 42 to the rear end when the sand transport vehicle 40 moves upward along the sand laying track 10, and simultaneously opens the hood door 421 for unloading.

[0089] See also Figure 2 In this embodiment, the automatic unloading device includes a cart hood lifting hydraulic push rod 43, a connecting rod 44 and a swing arm 45. The cart hood lifting hydraulic push rod 43 is installed at the front end of the cart hood 42, one end of the cart hood lifting hydraulic push rod 43 is hingedly installed on the transport vehicle chassis 41, and the other end thereof is hingedly installed on the cart hood 42; one end of the connecting rod 44 is hingedly installed on the transport vehicle chassis 41, and the other end of the connecting rod 44 is hingedly connected to the swing arm 45, and the other end of the swing arm 45 is fixedly connected to the hinge shaft of the cart hood door 421 and the cart hood 42. Thus, by properly setting the length and installation position of the connecting rod 44 and the rotating arm 45, when the cart hood lifting hydraulic push rod 43 is extended, the front end of the cart hood 42 is pushed to flip up backwards, and the cart hood 42 rotates around the hinge axis with the transport vehicle chassis 41. At the same time, the cart hood door 421 is pulled by the connecting rod 44 and the rotating arm 45 to rotate around the hinge axis with the upper side of the rear end of the cart hood 42, so as to open the cart hood door 421 for unloading. The rising height of the cart hood lifting hydraulic push rod 43 can be controlled according to the sand paving thickness required by the design, so as to adjust the inclination of the cart hood 42, and then control the opening height of the cart hood door 421, and adjust the amount of sand material dumped per unit time.

[0090] In order to pour the sand more evenly on the surface to be laid, refer to Figure 3 In this embodiment, a plurality of material dividing guide plates 422 are arranged in the wheel pocket 42. The material dividing guide plates 422 are gradually tilted outward from the front end to the rear end of the wheel pocket 42, and the plurality of material dividing guide plates 422 are symmetrically arranged along the center line of the length direction of the wheel pocket 42. The plurality of material dividing guide plates 422 form a plurality of "eight" shaped structures as a whole. The plurality of material dividing guide plates 422 divide the internal space of the wheel pocket 42 into a plurality of material dividing grooves, and the opening directions of the material dividing grooves are three directions of the left, middle and right of the rear end of the wheel pocket 42. With such an arrangement, when laying sand, the sand is discharged from the plurality of material dividing grooves formed by the material dividing guide plates 422 to the plurality of directions of the rear end of the wheel pocket 42, which is conducive to ensuring that the sand is evenly poured onto the surface to be laid.

[0091] Further, see Figure 2 and Figure 5 In this embodiment, the side plates 423 of the scooter 42 gradually increase in height from the front end to the rear end of the scooter 42. This arrangement can prevent the sand material from overflowing from both sides of the scooter 42 when the scooter 42 is turned back to unload.

[0092] In order to ensure that the sand transport vehicle 40 can run stably on the sand paving track 10 and prevent the sand transport vehicle 40 from falling off the sand paving track 10, see Figure 2 In this embodiment, roller devices 412 are installed on both sides of the lower part of the transport vehicle chassis 41, and the sand transport vehicle 40 can be restricted on the sand paving track 10 by the roller devices 412 to prevent the vehicle body from falling off the sand paving track 10. A brake device and a rail clamp (not shown in the figure) are also provided on the transport vehicle chassis 41. When the device is powered off, the brake device, the rail clamp and the roller devices 412 can be used to stably stop the sand transport vehicle 40 on the sand paving track 10.

[0093] Alternatively, see Figure 2 and Fig.32 A retraction limit device 431 and a lifting limit device 432 may also be provided on the cart hood lifting hydraulic push rod 43. The retraction limit device 431 and the lifting limit device 432 limit the retraction and extension lengths of the cart hood lifting hydraulic push rod 43. A main control cabinet (not shown in the figure) is provided on the sand transport vehicle 40, and the extension and retraction of the cart hood lifting hydraulic push rod 43 can be controlled by manual control (key control, remote control), thereby controlling the dumping amount of the sand.

[0094] Specifically, see Fig.32A limit device fixing frame 433 is fixedly installed on the cart hood lifting hydraulic push rod 43, and a movable rod 434 is passed through the limit device fixing frame 433. The upper end of the movable rod 434 is connected with the piston rod of the cart hood lifting hydraulic push rod 43. The movable rod 434 can move along the axial direction parallel to the cart hood lifting hydraulic push rod 43 under the drive of the piston rod of the cart hood lifting hydraulic push rod 43. A limit cone 435 is respectively installed at the upper and lower ends of the movable rod 434, and a retraction limit device 431 and a lifting limit device 432 are installed on the limit device fixing frame 433 along the length direction of the cart hood lifting hydraulic push rod 43. The retraction limit device 431 and the lifting limit device 432 use travel switches. When the scooter lifting hydraulic push rod 43 is lifted to the set position, the limiting cone 435 located below touches the lifting limit device 432, and the scooter lifting hydraulic push rod 43 stops lifting; when the scooter lifting hydraulic push rod 43 retracts to the set position, the limiting cone 435 located above touches the retraction limit device 431, and the scooter lifting hydraulic push rod 43 stops retracting.

[0095] See 1 and Figure 6 In this embodiment, the sand-laying track 10 includes a first track 11 and a second track 12, wherein the second track 12 is located below the first track 11, and the first track 11 and the second track 12 are connected by a truss structure 13. The truss structure 13 is welded with the first track 11 and the second track 12 to form an integral sand-laying track 10. A winch 60 is respectively arranged on the door-type upper leg device 20 corresponding to the first track 11 and the second track 12. By arranging the first track 11 and the second track 12 in an upper and lower arrangement, the sand transport vehicles 40 on the first track 11 and the second track 12 can be staggered according to the time difference according to the principle that they are not in a straight line at the same time when fully loaded with sand. In order to improve the working efficiency, after the sand material of the sand material transport vehicle 40 on the second track 12 is finished, the sand material of the sand material transport vehicle 40 on the first track 11 can be promptly dumped into the sand material transport vehicle 40 on the second track 12, and the sand material transport vehicle 40 on the second track 12 returns to the interrupted sand laying position to continue working, and the sand material transport vehicle 40 on the first track 11 returns promptly to transport the sand material, thereby doubling the laying efficiency. In addition, the sand material transport vehicle 40 can also lay the sand material upward along the first track 11, and the spiral flattening machine 50 can then flatten the sand material along the second track 12, which can also improve the sand laying efficiency.

[0096] In order to load the sand material into the sand material transport vehicle 40 more conveniently, see Figure 1 and Fig.30In this embodiment, a hopper 70 is further provided on the gate-type upper leg device 20 above the sand-laying track 10, and an electric single-beam suspension crane 80 is provided above the hopper 70. The sand is transported to the bottom of the gate-type upper leg device 20 through the material transportation road 130, and the sand is lifted and poured into the hopper 70 by the electric single-beam suspension crane 80. The empty sand transport vehicle 40 is returned to the bottom of the hopper 70, and the sand can be conveniently loaded into the sand transport vehicle 40, which saves manpower for loading the sand and reduces the labor intensity.

[0097] See also Figure 7 and Figure 8 In this embodiment, the spiral flattening machine 50 includes a flattening machine body 51, a spiral shaft mounting frame 52 and a hydraulic telescopic arm 53. The flattening machine body 51 is slidably arranged on the sand-laying track 10 through the flattening machine track wheel 511; a spiral flattening shaft 521 is mounted on the spiral shaft mounting frame 52; the hydraulic telescopic arm 53 is mounted on the front and rear ends of the flattening machine body 51, and the piston rod of the hydraulic telescopic arm 53 is hinged to the spiral shaft mounting frame 52. The sand material poured on the paving surface can be flattened by the spiral flattening shaft 521, and the distance between the spiral shaft mounting frame 52 and the spiral flattening shaft 521 and the paving surface can be adjusted by the hydraulic telescopic arm 53 to control the thickness of the sand paving.

[0098] In order to ensure that the spiral flattening machine 50 can run stably on the sand-laying track 10 and prevent the spiral flattening machine 50 from falling off the sand-laying track 10, see Figure 7 In this embodiment, flattening machine support wheels 512 are installed on both sides below the flattening machine body 51. The spiral flattening machine 50 can be restricted on the sand-laying track 10 by the flattening machine support wheels 512 to prevent the spiral flattening machine 50 from falling off the sand-laying track 10.

[0099] In this embodiment, the upper end of the sand-laying track 10 is connected to the door-type upper leg device 20 via a universal joint spherical shaft head, and the lower end of the sand-laying track 10 is connected to the door-type lower leg device 30 via a universal joint. The buckling in the form of a universal joint can ensure that after the entire device has laid an area, it can be translated as a whole without disassembly or separation of parts to lay the next surface. In the process of overall translation of the device, the door-type upper leg device 20, the door-type lower leg device 30 and the sand-laying track 10 are connected by a universal joint to ensure that the shaking of the sand-laying track 10 and the door frame may cause an angle but the connection will not be disconnected. The universal joint spherical shaft head at the connection between the sand-laying track 10 and the door-type upper leg device 20 is highly mobile, which can ensure that the angle caused by the shaking of the sand-laying track 10 will not cause the sand-laying track 10 to separate from the door-type upper leg device 20. The universal joint at the connection between the sand-laying track 10 and the door-type lower leg device 30 can ensure the stability of the connection between the sand-laying track 10 and the door-type lower leg device 30, while being able to bear a certain weight.

[0100] See also Figure 1 and Figure 6 In this embodiment, a plurality of track brackets 14 are arranged on the sand-laying track 10, and the top of the door-type upper leg device 20 is connected to the track bracket 14 through an inclined steel rope 90, and the top of the door-type lower leg device 30 is connected to the track bracket 14 through an inclined steel rope 90. With such an arrangement, after the two ends of the sand-laying track 10 are connected to the upper and lower gantry structures through universal joints, the inclined steel rope 90 is used to buckle the track bracket 14 in the middle section of the sand-laying track 10, and a certain angle is formed in two directions of the upper and lower gantry at multiple force points, so that the gravity of the sand-laying track 10 is divided into the gantry structures on both sides, and the other end of the inclined steel rope 90 is connected to the gantry structures on both sides. With such an arrangement, the sand-laying track 10, the door-type upper leg device 20 and the door-type lower leg device 30 in the automatic sand-laying device can be stressed together, thereby improving the stability of the device.

[0101] Specifically, see Fig.29 , Fig.30 and Fig.31 In this embodiment, the upper gate leg device 20 and the lower gate leg device 30 each include a gate leg frame 100, which is composed of a plurality of connecting rods connected by bolts. The upper gate leg device 20 and the lower gate leg device 30 are divided into a plurality of connecting rods, which can be flexibly and arbitrarily combined and placed in a transport vehicle and transported to the site of use. These connecting rods are of different sizes, and any single component from small to large does not exceed 4 tons (that is, the largest single component does not exceed 4 tons), which is convenient for the transportation and assembly of the components. When the components are transported to the construction site for on-site assembly or the overall disassembly is completed after the construction, they can be hoisted for assembly or disassembly by a crane of 8-12 tons. After any individual component is transported to the construction site, it does not need to be welded on site, and only high-strength bolts are used to combine and connect into a whole; when the overall disassembly is completed after the construction is completed, no gas cutting or cutting is required, and the bolts at the combined connection can be disassembled into individual components. In this way, the upper gate leg device 20 and the lower gate leg device 30 are easy to transport, assemble and disassemble.

[0102] In engineering applications, it may be necessary to adjust the height of the sand-laying track 10 according to the actual construction situation. In order to facilitate the height adjustment, see Figures 9 to 15In this embodiment, a leg height adjustment structure 110 is also provided at the bottom of the portal-type leg frame 100 , and the leg height adjustment structure 110 includes a lifting nut 111 , a lifting screw 112 , a ball head seat 113 and a ball head seat pressure cover 114 . Among them, the lifting nut 111 is fixedly installed at the bottom of the portal leg frame 100, and the lifting screw 112 is square; the lifting screw 112 is inserted into the lifting nut 111, and the lifting screw 112 is threadedly connected to the lifting nut 111; a universal joint spherical head 1121 is arranged at the lower end of the lifting screw 112; a hemispherical groove 1131 is arranged on the ball head seat 113, and the universal joint spherical head 1121 is arranged in the hemispherical groove 1131; the ball head seat pressure cover 114 is installed on the ball head seat 113 by bolt connection, and a pressure cover groove 1141 is provided on the ball head seat pressure cover 114, and the ball head seat pressure cover 114 buckles the universal joint spherical head 1121 in the hemispherical groove 1131 and the pressure cover groove 1141; the other side of the ball head seat 113 is horizontal, close to the ground, and is used to support the leg height adjustment structure 110.

[0103] By adopting the above-mentioned leg height adjustment structure 110, the door-type upper leg device 20 and the door-type lower leg device 30 can flexibly adjust the inclination at multiple angles according to the terrain conditions, so as to achieve a stable effect of being close to the ground. The universal joint ball head 1121 and the ball head seat 113 are tightly fastened to each other, and at the same time can be easily and flexibly rotated at will to form a universal joint ball rotating device, which makes it easy for the four corners of the door frame device to overcome uneven terrain conditions and stand stably as the leg height adjustment structure 110 is adjusted up and down. When adjusting the leg height adjustment structure 110, the door-type upper leg device 20 and the door-type lower leg device 30 can be lifted by a jack, or the door-type upper leg device 20 and the door-type lower leg device 30 can be lifted by a hand winch, and the lifting screw 112 can be rotated to slide the lifting screw 112 up and down, so that the bottom of the ball head seat 113 can be adjusted in height as the lifting screw 112 slides up and down, thereby completing the height adjustment of the four legs at the bottom of the door-type leg, and fixing the four feet of the door-type upper leg device 20 and the door-type lower leg device 30 on the same plane, helping the door-type leg to stand stably.

[0104] In engineering applications, after the automatic sand laying device has laid a certain area, it is necessary to move the device as a whole to another area to continue laying. In order to facilitate the overall movement of the automatic sand laying device, see Figures 16 to 23In this embodiment, a leg moving structure 120 is also provided at the bottom of the portal leg frame 100, and the leg moving structure 120 includes a moving structure ball head seat 121, a moving structure ball head bracket 122, a moving structure ball head pressure cover 123 and a walking roller 124. The moving structure ball head seat 121 is installed at the bottom of the portal leg frame 100 through a track wheel shaft, and a track wheel ball head groove 1211 is provided at the bottom of the moving structure ball head seat 121; a moving structure universal joint ball head 1221 is provided on the moving structure ball head bracket 122; the moving structure ball head pressure cover 123 is installed below the moving structure ball head seat 121 through bolt connection, and the moving structure universal joint ball head 1221 is buckled in the track wheel ball head groove 1211; and the walking roller 124 is rotatably installed on the moving structure ball head bracket 122. The above-mentioned outrigger moving structure 120 is controlled by a spherical universal joint, and can be rotated 360° arbitrarily, and can also be tilted at multiple angles to adapt to various terrain conditions, so that the door-type upper outrigger device 20 and the door-type lower outrigger device 30 can move arbitrarily.

[0105] Further, see Fig.17 and Fig.18 In this embodiment, two travel rollers 124 are installed in parallel on the moving structure ball bracket 122. By installing two travel rollers 124 in parallel on each moving structure ball bracket 122, the flexibility of the device movement is guaranteed and the pressure per unit area is reduced. Research has found that it is just right to install two travel rollers 124 in parallel on the moving structure ball bracket 122. If more travel rollers 124 are installed, it will be neither flexible nor material-wasting.

[0106] See also Figure 24 to Figure 28 In this embodiment, the hoist 60 includes a base 61, a drum 62 and a hoist motor 63. The base 61 is mounted on the door-type upper leg device 20; the drum 62 is rotatably mounted on the base 61, and a pull rope is arranged on the drum 62; the hoist motor 63 is mounted on the base 61, and the output shaft of the hoist motor 63 is connected to the drum 62 to drive the drum 62 to rotate. The drum 62 is driven to rotate by the hoist motor 63, and the sand transport vehicle 40 and the spiral flattening machine 50 are pulled to slide on the sand paving track 10 by the pull rope arranged on the drum 62, and the hoist 60 provides power for the sand transport vehicle 40 and the spiral flattening machine 50 to move upward along the sand paving track 10.

[0107] Specifically, see Fig.24 and Fig.25In the present embodiment, the drum 62 comprises a first drum 621 and a second drum 622, which are rotatably mounted on the machine base 61 and synchronously driven by the hoisting motor 63; a first balancing pulley 611 is arranged on the machine base 61 corresponding to the first drum 621, and a second balancing pulley 612 is arranged on the machine base 61 corresponding to the second drum 622; an isolating tooth 623 is arranged on each of the first drum 621 and the second drum 622, which separates the first drum 621 into a first rope winding area 624 and a second rope winding area 625, and the isolating tooth 623 separates the second drum 622 into a third rope winding area 626 and a fourth rope winding area 627; a first transport vehicle pulley 46, a second transport vehicle pulley 47, a third transport vehicle pulley 48 and a fourth transport vehicle pulley 49 are arranged side by side at the front end of the sand transport vehicle 40.

[0108] See also Fig. 27 The rope arrangement of the winch 60 is as follows: the rope on the first rope winding area 624 is passed around the first transport vehicle pulley 46, the first balance pulley 611 and the second transport vehicle pulley 47 in sequence and then connected to the second rope winding area 625; the rope on the third rope winding area 626 is passed around the third transport vehicle pulley 48, the second balance pulley 612 and the fourth transport vehicle pulley 49 in sequence and then connected to the fourth rope winding area 627. By adopting the above-mentioned winch 60 and rope arrangement, when the sand material transport vehicle 40 is working, eight ropes pull one sand material transport vehicle 40 at the same time, and the first drum 621 and the second drum 622 on the winch 60 work at the same time; when the rope on the pulley of the sand material transport vehicle 40 is released, the sand material transport vehicle 40 slides down along the sand laying track 10 under the action of its own gravity; when the rope on the pulley of the sand material transport vehicle 40 is taken back, the sand material transport vehicle 40 slides up along the sand laying track 10 under the action of the winch 60. Such an arrangement can improve the stability of the sand transport vehicle 40 when sliding along the sand laying track 10 .

[0109] The use process of the device for automatically laying sand on the inclined surface of a water conservancy project of the present invention is as follows:

[0110] A gate-type upper leg device 20 and a gate-type lower leg device 30 are respectively installed at the upper and lower ends of the water conservancy project slope to be paved with sand, and the upper and lower ends of the sand-paving track 10 are respectively connected to the gate-type upper leg device 20 and the gate-type lower leg device 30, so that the sand-paving track 10 is overhead and arranged above the water conservancy project slope;

[0111] The sand is loaded into the hopper 70 through the electric single-beam suspension crane 80, and the sand is poured into the sand transport vehicle 40 through the hopper 70. The pull rope of the hoist 60 is connected to the sand transport vehicle 40, so that the sand transport vehicle 40 loaded with sand automatically slides down to the lower end of the sand-laying track 10 under the action of its own gravity;

[0112] The sand transport vehicle 40 is pulled upward along the sand laying track 10 by the hoist 60. During the upward movement of the sand transport vehicle 40, the hydraulic push rod 43 for lifting the vehicle cover is controlled to extend, so that the vehicle cover 42 is turned back, and the vehicle cover door 421 is driven to rotate through the connecting rod 44 and the rotating arm 45, and the rear end of the vehicle cover 42 is opened to unload the sand, and the sand is laid on the inclined surface of the water conservancy project;

[0113] The spiral leveler 50 is pulled upward along the sand-laying track 10 by the winch 60 to level the sand material laid on the slope of the water conservancy project;

[0114] After the sanding of one area is completed, the door-type upper leg device 20, the door-type lower leg device 30 and the sanding track 10 are moved as a whole to the next sanding area through the leg moving structure 120 to continue sanding.

[0115] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for automatically spreading sand on the slope of a water conservancy project, characterized in that: include: A sand-laying track (10), wherein the sand-laying track (10) is arranged at an inclination; A gate-type upper leg device (20) is arranged at the upper end of the sand-laying track (10) and is connected to the sand-laying track (10). A winch (60) is arranged on the gate-type upper leg device (20); A door-shaped lower leg device (30) is disposed at the lower end of the sand-laying track (10) and is connected to the sand-laying track (10); A sand transport vehicle (40) is slidably arranged on the sand laying track (10); the hoist (60) is detachably connected to the sand transport vehicle (40) via a pull rope; and an automatic unloading device is provided on the sand transport vehicle (40); A spiral leveler (50) is slidably arranged on the sand-laying track (10), and the hoist (60) is detachably connected to the spiral leveler (50) via a pull rope; The sand material transport vehicle (40) comprises: A transport vehicle chassis (41), wherein the transport vehicle chassis (41) is slidably arranged on the sand-laying track (10) via transport track wheels (411); A hood (42) is installed above the transport vehicle chassis (41), the rear end of the hood (42) is hinged to the rear end of the transport vehicle chassis (41), the rear end of the hood (42) is provided with a hood door (421), the upper end of the hood door (421) is hinged to the upper side of the rear end of the hood (42); The automatic unloading device is used to flip the cart pocket (42) toward the rear end and simultaneously open the cart pocket door (421) to unload; The automatic unloading device comprises: A cart hood lifting hydraulic push rod (43) is mounted on the front end of the cart hood (42), one end of the cart hood lifting hydraulic push rod (43) is hingedly mounted on the transport vehicle chassis (41), and the other end of the cart hood lifting hydraulic push rod (43) is hingedly mounted on the cart hood (42); A connecting rod (44), one end of which is hingedly mounted on the chassis (41) of the transport vehicle, and the other end of which is hingedly connected to a rotating arm (45), and the other end of which is fixedly connected to a hinge shaft at which the vehicle pocket door (421) and the vehicle pocket (42) are hingedly connected; the connecting rod (44) and the rotating arm (45) are used to open the vehicle pocket door (421) when the vehicle pocket lifting hydraulic push rod (43) lifts the vehicle pocket (42), and to close the vehicle pocket door (421) when the vehicle pocket lifting hydraulic push rod (43) lowers the vehicle pocket (42); The spiral flattening machine (50) comprises: A flattening locomotive body (51), wherein the flattening locomotive body (51) is slidably arranged on the sand-laying track (10) via a flattening track wheel (511); A spiral shaft mounting frame (52), wherein a spiral flattening shaft (521) is mounted on the spiral shaft mounting frame (52); A hydraulic telescopic arm (53) is installed at the front and rear ends of the flattening locomotive body (51), and a piston rod of the hydraulic telescopic arm (53) is connected to the screw shaft mounting frame (52).

2. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: A plurality of material dividing guide plates (422) are arranged in the cart pocket (42), and the material dividing guide plates (422) are gradually inclined outward from the front end to the rear end of the cart pocket (42), and the plurality of material dividing guide plates (422) are symmetrically arranged along the center line of the length direction of the cart pocket (42).

3. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: The side panels (423) of the scooter (42) gradually increase in height from the front end to the rear end of the scooter (42).

4. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: A supporting wheel device (412) is provided below the transport vehicle chassis (41), and a brake device and a rail clamp are also provided on the transport vehicle chassis (41).

5. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: The sand-laying track (10) comprises a first track (11) and a second track (12), wherein the second track (12) is located below the first track (11), and the first track (11) and the second track (12) are connected via a truss structure (13).

6. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: A hopper (70) is provided on the door-type upper leg device (20) above the sand-laying track (10), and an electric single-beam suspension crane (80) is provided above the hopper (70).

7. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: The upper end of the sand-laying track (10) is connected to the door-type upper leg device (20) via a universal joint spherical shaft head, and the lower end of the sand-laying track (10) is connected to the door-type lower leg device (30) via a universal joint.

8. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: A plurality of track brackets (14) are provided on the sand-laying track (10); the top of the door-type upper leg device (20) is connected to the track bracket (14) via an inclined steel rope (90); and the top of the door-type lower leg device (30) is connected to the track bracket (14) via an inclined steel rope (90).

9. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: The gate-type upper leg support device (20) and the gate-type lower leg support device (30) both comprise a gate-type leg support frame (100), and the gate-type leg support frame (100) is composed of a plurality of connecting rods connected by bolts.

10. The device for automatically spreading sand on the slope of a water conservancy project according to claim 9, characterized in that: A leg height adjustment structure (110) is provided at the bottom of the door-shaped leg frame (100), and the leg height adjustment structure (110) comprises: A lifting nut (111) is fixedly mounted on the bottom of the door-shaped leg frame (100); A lifting screw rod (112) is inserted into the lifting nut (111), the lifting screw rod (112) is threadedly connected to the lifting nut (111), and a universal joint spherical head (1121) is provided at the lower end of the lifting screw rod (112); A ball head seat (113), wherein the ball head seat (113) is provided with a hemispherical groove (1131), and the universal joint spherical head (1121) is arranged in the hemispherical groove (1131); A ball head seat pressure cover (114) is installed on the ball head seat (113) by bolt connection, and a pressure cover groove (1141) is provided on the ball head seat pressure cover (114). The ball head seat pressure cover (114) buckles the universal joint spherical head (1121) in the hemispherical groove (1131) and the pressure cover groove (1141).

11. The device for automatically spreading sand on the slope of a water conservancy project according to claim 9, characterized in that: A leg moving structure (120) is provided at the bottom of the door-shaped leg frame (100), and the leg moving structure (120) comprises: A movable structure ball head seat (121), wherein the movable structure ball head seat (121) is installed at the bottom of the door-shaped leg frame (100) via a track wheel shaft, and a track wheel ball head groove (1211) is provided at the bottom of the movable structure ball head seat (121); A movable structure ball head bracket (122), wherein a movable structure universal joint ball head (1221) is provided on the movable structure ball head bracket (122); A movable structure ball head pressure cover (123), wherein the movable structure ball head pressure cover (123) is installed below the movable structure ball head seat (121) by bolt connection, and the movable structure universal joint ball head (1221) is buckled into the track wheel ball head groove (1211); The walking roller (124) is rotatably mounted on the moving structure ball head bracket (122).

12. The device for automatically spreading sand on the slope of a water conservancy project according to claim 11, characterized in that: Two travel rollers (124) are mounted in parallel on the movable structure ball head bracket (122).

13. The device for automatically spreading sand on the slope of a water conservancy project according to claim 1, characterized in that: The hoist (60) comprises: A machine base (61) mounted on the door-type upper leg device (20); A reel (62) is rotatably mounted on the machine base (61), and a pull rope is provided on the reel (62); A hoisting motor (63) is mounted on the machine base (61); an output shaft of the hoisting motor (63) is connected to the reel (62); and the hoisting motor (63) is used to drive the reel (62) to rotate.

14. The device for automatically spreading sand on the slope of a water conservancy project according to claim 13, characterized in that: The reel (62) comprises a first reel (621) and a second reel (622); a first balancing pulley (611) is provided on the machine base (61) at a position corresponding to the first reel (621); a second balancing pulley (612) is provided on the machine base (61) at a position corresponding to the second reel (622); both the first reel (621) and the second reel (622) are provided with an isolating tooth (623); the isolating tooth (623) separates the first reel (621) into a first rope winding area (624) and a second rope winding area (625); the isolating tooth (623) separates the second reel (622) into a third rope winding area (626) and a fourth rope winding area (627); The front end of the sand transport vehicle (40) is provided with a first transport vehicle pulley (46), a second transport vehicle pulley (47), a third transport vehicle pulley (48) and a fourth transport vehicle pulley (49) arranged side by side. The pull rope on the first rope winding area (624) passes through the first transport vehicle pulley (46), the first balancing pulley (611) and the second transport vehicle pulley (47) in sequence and then is connected to the second rope winding area (625). The pull rope on the third rope winding area (626) passes through the third transport vehicle pulley (48), the second balancing pulley (612) and the fourth transport vehicle pulley (49) in sequence and then is connected to the fourth rope winding area (627).

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