Intelligent suspension conveying system for conveying road construction materials

Abstract

An intelligent suspension conveying system for conveying highway construction materials comprises a material vehicle, a suspension conveying frame, a hydraulic station and a master control system are arranged on the material vehicle, the suspension conveying frame comprises a horizontal suspension conveying mechanism and two stand columns, a polished rod is fixed to each stand column and arranged in the horizontal direction, a left connecting rod is fixed between the two stand columns, and a right connecting rod is fixed between the two stand columns. A right connecting rod is fixed between the right ends of the two polished rods, and the left connecting rod and the right connecting rod are located on the same horizontal plane; in conclusion, the automatic mechanical gripper and the hydraulic control system are adopted, the guardrail plate can be automatically grabbed and turned over, the requirement for manual operation is remarkably reduced, and the physical labor intensity of constructors is reduced; the automatic system can quickly and accurately complete carrying and installation preparation work of the guardrail plate, the manual operation time is shortened, and therefore the overall construction efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of highway construction, and in particular relates to an intelligent suspension conveying system for conveying highway construction materials. Background Art

[0002] Common highway construction materials include asphalt mixture, gravel, formwork, curbstone, guardrail and slope protection net. Guardrail uses the deformation of soil foundation, columns and beams to absorb collision energy and force out-of-control vehicles to change direction and return to normal driving direction to prevent vehicles from running off the road, so as to protect vehicles and passengers and reduce losses caused by accidents. In the current highway construction process, guardrails need to be transported to the site for installation. Construction workers need to remove guardrails from material trucks one by one and place them along the road for installation. Manual transportation and placement of guardrails is inefficient and labor-intensive, which affects construction efficiency.

[0003] Patent publication number CN116767777A discloses a material conveying equipment for highway construction, which can realize the effect of automatically placing guardrail panels and columns, greatly reducing the labor intensity of construction workers and improving the efficiency of laying guardrail panels. However, there are still some problems in the construction and installation process of guardrail panels. For example, when installing the guardrail panels on the columns, 2-3 construction workers are required to lift the guardrail panels on the ground together, and then turn the guardrail panels 90°, and another construction worker will install and fix the two ends of the guardrail panels on the two columns in turn. The entire installation process requires several construction workers to continuously hold the guardrail panels. The labor intensity of the construction workers is still very high, and more construction workers are required, which increases the construction cost; furthermore, some lanes have a certain curvature, and the guardrail panels are straight. Therefore, after installing one end of the guardrail panel, the construction workers need to spend a lot of effort to push the guardrail panel to deform it before they can install and fix the other end of the guardrail panel. The labor intensity of the entire construction process is higher, which affects the construction efficiency. Summary of the invention

[0004] The present invention aims to provide an intelligent suspension conveying system for conveying highway construction materials, so as to solve the technical problems of high labor intensity and low construction efficiency in the existing guardrail installation.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An intelligent suspension conveying system for conveying highway construction materials comprises a material vehicle, on which a suspension conveying frame, a hydraulic station and a general control system are arranged, the suspension conveying frame comprises a horizontal suspension conveying mechanism and two columns, each column is fixed with a light rod, the light rod is arranged in a horizontal direction, a left connecting rod is fixed between the two columns, a right connecting rod is fixed between the right ends of the two light rods, the left connecting rod and the right connecting rod are located on the same horizontal plane, a slide seat is mounted on each light rod, and the horizontal suspension conveying mechanism is used to drive the two slide seats to move synchronously on the two light rods;

[0007] A guide seat and a vertical shaft are installed on each slide seat. The vertical shaft is inserted on the guide seat in the vertical direction. A vertical moving mechanism is installed on the guide seat. The vertical moving mechanism is used to drive the vertical shaft to move on the guide seat in the vertical direction.

[0008] A guardrail mechanical gripper is installed at the lower end of the two vertical shafts. The guardrail mechanical gripper includes a gripper box. The lower ends of the two vertical shafts are connected to the top of the gripper box in a hinged manner. A turning cylinder is also connected between each vertical shaft and the top of the gripper box. The guardrail mechanical gripper is pushed to turn around the lower end of the vertical shaft through the extension and contraction of the two sets of turning cylinders. Through openings are respectively provided on the left and right sides of the bottom of the gripper box. A set of mechanical gripper assemblies are respectively provided on the left and right sides of the gripper box. The two sets of mechanical gripper assemblies extend outward through the two through openings.

[0009] Two groups of guardrail pushing mechanisms are arranged in the middle of the grip box, and the two groups of guardrail pushing mechanisms are arranged symmetrically on the left and right. Two rectangular openings are opened in the middle of the bottom surface of the grip box, and the two rectangular openings correspond to the two groups of guardrail pushing mechanisms respectively; each group of guardrail pushing mechanisms includes a booster hydraulic cylinder, a frame, a first connecting rod, a second connecting rod and a crank arm, the frame is fixedly installed in the grip box, one end of the first connecting rod is hinged to the frame through a first pin shaft, the other end of the first connecting rod is hinged to one end of the second connecting rod through a second pin shaft, one end of the crank arm is hinged to the frame through a third pin shaft, the other end of the second connecting rod is hinged to the middle part of the crank arm through a fourth pin shaft, a wheel frame is installed at the end of the crank arm, and a pushing roller is rotatably installed on the wheel frame; the cylinder body of the booster hydraulic cylinder is installed in the grip box, and the piston rod end of the booster hydraulic cylinder is hinged to the middle part of the first connecting rod;

[0010] The piston rod of the booster hydraulic cylinder extends out, and the piston rod of the booster hydraulic cylinder pushes the middle part of the first connecting rod, and the first connecting rod rotates around the first pin shaft. The first connecting rod pushes the crank arm through the second connecting rod, so that the crank arm rotates around the third pin shaft. After the crank arm rotates, the pushing roller at the end of the crank arm is pushed outward from the rectangular opening.

[0011] The overall control system is respectively connected with the hydraulic station, the horizontal suspension conveying mechanism and two groups of vertical moving mechanisms; the hydraulic station is respectively connected with the two groups of boosting hydraulic cylinders and the two groups of turning cylinders through oil circuits.

[0012] Further, two groups of split door are arranged at the bottom of the gripper box, and the two groups of split door are respectively located at two rectangular openings, each group of split door is connected to the corresponding guardrail pushing mechanism, and each group of split door includes two doors, and the two doors are respectively hinged at the rectangular opening through short shafts, and the two doors can be opened in a split state, and a special-shaped bracket is hinged on the frame through a fifth pin shaft, and an arc plate is fixed at the end of the special-shaped bracket, and the upper surfaces of the two doors are respectively connected to the middle part of the special-shaped bracket through a linkage rod, and the two ends of the linkage rod are respectively connected to the upper surface of the door and the middle part of the special-shaped bracket by a hinged manner;

[0013] When the pushing roller is pushed outward from the rectangular opening by the push of the booster hydraulic cylinder, the pushing roller pushes the two box doors, and the two box doors are opened in a split state at the rectangular opening, and the pushing roller can be pushed outward from the rectangular opening; when the pushing roller is retracted from the rectangular opening to the inside of the gripper box by the pull of the booster hydraulic cylinder, the pushing roller pushes the arc plate, and the arc plate and the special-shaped bracket rotate around the fifth pin shaft, and the special-shaped bracket pulls the two box doors through two linkage rods, so that the two box doors are closed.

[0014] Furthermore, the horizontal suspension conveying mechanism includes a screw and a drive motor. The two ends of the screw are rotatably installed on the left connecting rod and the right connecting rod respectively. A threaded sleeve is provided on the screw, and the threaded sleeve cooperates with the screw thread. The drive motor is installed on the left connecting rod, and the drive motor is connected to the screw in a transmission manner; the two slides are fixedly connected to the threaded sleeves through short rods respectively; and the overall control system is control-connected to the drive motor.

[0015] Furthermore, the vertical moving mechanism includes a vertical motor, which is installed on the guide seat. The main shaft of the vertical motor is provided with a gear, and a rack is provided on one side of the vertical shaft, and the gear and the rack are meshed; the overall control system is connected to the vertical motor control.

[0016] Furthermore, the mechanical gripper assembly includes a double piston rod hydraulic cylinder and two groups of gripper assemblies, the two groups of gripper assemblies are arranged side by side up and down, and the double piston rod hydraulic cylinder is located between the two groups of gripper assemblies;

[0017] Each group of gripper assemblies includes two incomplete gears, which are rotatably installed in the gripper box respectively, and the gear parts of the two incomplete gears are meshed with each other. Arms are fixed on the two incomplete gears, and the ends of the arm extend out of the gripper box from the through opening. The ends of the arm are hinged with gripper plates, and the surface of the gripper plates is provided with anti-slip rubber pads; an extension plate is fixed on one of the incomplete gears, and a long hole is opened on the extension plate;

[0018] The two piston rods of the double-piston-rod hydraulic cylinder are respectively connected to the extension plates of the two groups of gripper assemblies, and the piston rod ends of the double-piston-rod hydraulic cylinder are connected to the long holes of the extension plates through the sixth pin shaft, and the sixth pin shaft can move in the long holes.

[0019] Furthermore, an electromagnet is arranged in each gripping plate, and the electromagnet is connected to the overall control system.

[0020] Furthermore, a track is provided on the material cart, a base is installed on the track, the base can move on the track, a translation hydraulic cylinder is also installed on the material cart, the piston rod of the translation hydraulic cylinder is connected to the base, and the suspension conveyor frame is installed on the base.

[0021] Furthermore, both ends of the bare rod are connected to the upper ends of the columns through tie rods.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The present invention can automatically grab and flip the guardrail panels by adopting an automated mechanical gripper and a hydraulic control system, significantly reducing the need for manual operation and lowering the physical labor intensity of construction workers; the automated system can quickly and accurately complete the handling and installation preparation work of the guardrail panels, reducing the time for manual operation, thereby improving the overall construction efficiency.

[0024] (2) For construction sections with a certain curvature, the built-in guardrail pushing mechanism can easily deform the guardrail plate to adapt to the road shape, without the need for construction workers to make extra efforts to adjust the guardrail plate;

[0025] (3) By designing a translation hydraulic cylinder and a movable base, the suspension conveyor frame can be moved as needed, which not only enhances the flexibility of the equipment, but also reduces the occupied space when not in operation, avoiding safety hazards;

[0026] The suspension conveying system of the present invention effectively solves the problems existing in the installation of traditional guardrails through its characteristics of automation, flexibility and safety, and improves the quality and efficiency of highway construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a structural schematic diagram of an intelligent suspension conveying system for conveying highway construction materials according to the present invention;

[0029] Figure 2 This is a top view of the hanging conveyor frame;

[0030] Figure 3 It is the bottom view of the gripper box;

[0031] Figure 4 This is a diagram showing the guardrail mechanical gripper grabbing the guardrail plate for installation in a bird's-eye view;

[0032] Figure 5 It is a structural schematic diagram of the guardrail pushing mechanism;

[0033] Figure 6 It is a structural schematic diagram of a mechanical gripper assembly;

[0034] Figure 7 This is the installation diagram of the box door;

[0035] Figure 8 This is the position relationship diagram of the box door and the guardrail pushing mechanism;

[0036] Fig. 9 This is a diagram showing the position relationship between the push roller and the arc plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention is further described in detail below in conjunction with embodiments.

[0039] A specific embodiment of an intelligent suspension conveying system for conveying highway construction materials provided by the present invention:

[0040] like Figure 1 and Figure 2 As shown, an intelligent suspension conveying system for conveying highway construction materials includes a material cart 1, which can be connected to any vehicle head, such as a truck head, and the material cart 1 is pulled by the truck head to move. The material cart 1 is provided with a suspension conveying frame, a hydraulic station and a general control system. The suspension conveying frame includes a horizontal suspension conveying mechanism and two columns 2, each of which is fixed with a light rod 3, and the light rod 3 is arranged in a horizontal direction. A left connecting rod 4 is fixed between the two columns 2, and a right connecting rod 5 is fixed between the right ends of the two light rods 3. The left connecting rod 4 and the right connecting rod 5 are located on the same horizontal plane, and a slide 6 is mounted on each light rod 3. The horizontal suspension conveying mechanism is used to drive the two slides 6 to move synchronously on the two light rods 3;

[0041] A guide seat 7 and a vertical shaft 8 are installed on each slide seat 6. The vertical shaft 8 is inserted on the guide seat 7 along the vertical direction. A vertical moving mechanism is installed on the guide seat 7. The vertical moving mechanism is used to drive the vertical shaft 8 to move on the guide seat 7 along the vertical direction.

[0042] A guardrail mechanical gripper 9 is installed at the lower end of the two vertical shafts 8. The guardrail mechanical gripper 9 includes a gripper box 10. The lower ends of the two vertical shafts 8 are connected to the top of the gripper box 10 by a hinged manner. A turning cylinder 11 is also connected between each vertical shaft 8 and the top of the gripper box 10. The guardrail mechanical gripper 9 is pushed to turn around the lower end of the vertical shaft 8 by the extension and contraction of the two sets of turning cylinders 11; the left and right sides of the bottom of the gripper box 10 are respectively provided with openings 12 (such as Figure 3 As shown), a set of mechanical gripper assemblies 13 are provided on the left and right sides of the gripper box 10, and the two sets of mechanical gripper assemblies 13 extend outward through the two openings 12 respectively;

[0043] like Figure 4 As shown, two sets of guardrail pushing mechanisms 15 are arranged in the middle of the gripper box 10, and the two sets of guardrail pushing mechanisms 15 are arranged symmetrically. Two rectangular openings 14 are opened in the middle of the bottom surface of the gripper box 10, and the two rectangular openings 14 correspond to the two sets of guardrail pushing mechanisms 15 respectively; Figure 5 As shown, each guardrail pushing mechanism 15 includes a booster hydraulic cylinder 16, a frame 17, a first connecting rod 18, a second connecting rod 19 and a crank arm 20. The frame 17 is fixedly installed in the gripper box 10. One end of the first connecting rod 18 is hinged to the frame 17 through a first pin shaft 21. The other end of the first connecting rod 18 and one end of the second connecting rod 19 are hinged through a second pin shaft 22. One end of the crank arm 20 is hinged to the frame 17 through a third pin shaft 23. The other end of the second connecting rod 19 is hinged to the middle part of the crank arm 20 through a fourth pin shaft 24. A wheel frame 25 is installed at the end of the crank arm 20, and a push roller 26 is rotatably installed on the wheel frame 25. The cylinder body of the booster hydraulic cylinder 16 is installed in the gripper box 10, and the piston rod end of the booster hydraulic cylinder 16 is hinged to the middle part of the first connecting rod 18.

[0044] The piston rod of the booster hydraulic cylinder 16 extends out, and the piston rod of the booster hydraulic cylinder 16 pushes the middle part of the first connecting rod 18, and the first connecting rod 18 rotates around the first pin shaft 21. The first connecting rod 18 pushes the crank arm 20 through the second connecting rod 19, so that the crank arm 20 rotates around the third pin shaft 23. After the crank arm 20 rotates, the pushing roller 26 at the end of the crank arm 20 is pushed outward from the rectangular opening 14.

[0045] The overall control system is respectively connected to the hydraulic station, the horizontal suspension conveying mechanism and the two groups of vertical moving mechanisms. The hydraulic station is respectively connected to the two groups of booster hydraulic cylinders 16 and the two groups of flipping cylinders 11 through oil circuits. The overall control system can be a PLC controller.

[0046] The working process of the intelligent suspension conveying system for conveying highway construction materials in this embodiment is as follows: First, the guardrail plate is installed Figure 1The guardrail board is stacked on the material cart 1 in the manner shown. When the guardrail board is installed, the PLC controller first controls the two sets of vertical moving mechanisms to start, and the two sets of vertical moving mechanisms drive the vertical axis 8 to move downward, so that the guardrail mechanical gripper 9 reaches the top of the guardrail board, and then starts the two sets of mechanical gripper assemblies 13. The two sets of mechanical gripper assemblies 13 extend downward from the through opening 12 and grab the top guardrail board. After grabbing, the vertical moving mechanism drives the vertical axis 8 to move upward, and the guardrail mechanical gripper 9 grabs the guardrail board and moves upward. After reaching a height that can be moved out of the material cart 1, the vertical moving mechanism stops working, and the horizontal suspension conveying mechanism is started. The horizontal suspension conveying mechanism drives the two slides 6 to move synchronously on the two light rods 3, so that the vertical axis 8 connected to the slide 6 moves in the horizontal direction, and finally the guardrail board at the lower end of the vertical axis 8 is moved out of the material cart 1.

[0047] At this time, the guardrail board captured under the guardrail mechanical gripper 9 is in a horizontal state, so the guardrail board needs to be flipped 90° before installation. Then, the two sets of flip cylinders 11 are started, and the piston rods of the flip cylinders 11 extend and push the guardrail mechanical gripper 9 to flip around the lower end of the vertical axis 8. After flipping 90° (such as Figure 6 As shown), the turning cylinder 11 stops working, and then the construction personnel can install the two ends of the guardrail plate on the two columns 2 in sequence.

[0048] like Figure 4 As shown, if the construction section has a certain curvature, after one end of the guardrail plate is installed and fixed, it is necessary to use the two sets of guardrail pushing mechanisms 15 in the grip box 10 to push the guardrail plate so that the guardrail plate undergoes a certain curvature deformation before the other end of the guardrail plate can be installed. The specific process is as follows: the mechanical gripper assembly 13 releases the grip on the guardrail plate, and then starts the two sets of booster hydraulic cylinders 16, the piston rods of the booster hydraulic cylinders 16 extend, and the piston rods of the booster hydraulic cylinders 16 push the middle part of the first connecting rod 18, the first connecting rod 18 rotates around the first pin shaft 21, the first connecting rod 18 pushes the crank arm 20 through the second connecting rod 19, so that the crank arm 20 rotates around the third pin shaft 23, and the crank arm 20 rotates Afterwards, the pushing roller 26 at the end of the crank arm 20 is pushed outward from the rectangular opening 14, and the pushing roller 26 contacts the concave surface of the guardrail board after being pushed out. As the pushing roller 26 is continuously pushed out, the pushing roller 26 can continuously push the guardrail board. At the same time, the material vehicle 1 is started to move in a straight line. On the one hand, the pushing roller 26 pushes the guardrail board to deform it, and on the other hand, it rolls on the guardrail board, and finally the entire guardrail board is deformed into a certain arc. The construction workers can then install the other end of the guardrail board. Of course, during the deformation process of the guardrail board, the construction workers need to lift the guardrail board, and one end of the guardrail board has been fixed, so there is no need to spend a lot of effort to lift it at this time.

[0049] In order to realize the horizontal suspension conveying mechanism driving the two slides 6 to move synchronously on the two polished rods 3, a horizontal suspension conveying mechanism (such as Figure 2 As shown), it includes a lead screw 27 and a drive motor 28. The two ends of the lead screw 27 are rotatably mounted on the left connecting rod 4 and the right connecting rod 5 respectively. A threaded sleeve 29 is provided on the lead screw 27. The threaded sleeve 29 is threadedly matched with the lead screw 27. The drive motor 28 is installed on the left connecting rod 4, and the drive motor 28 is transmission-connected to the lead screw 27; the two slides 6 are fixedly connected to the threaded sleeve 29 through short rods 30 respectively; the overall control system is control-connected to the drive motor 28.

[0050] The working principle of the horizontal suspension conveying mechanism is: the driving motor 28 drives the lead screw 27 to rotate, the lead screw 27 rotates to drive the threaded sleeve 29 to move on the lead screw 27, and the threaded sleeve 29 drives the two slide seats 6 to move on the polished rod 3 through the short rod 30.

[0051] In order to realize the vertical movement mechanism driving the vertical shaft 8 to move along the vertical direction on the guide seat 7, a vertical movement mechanism (such as Figure 1 As shown), it includes a vertical motor 31, which is installed on the guide seat 7. The main shaft of the vertical motor 31 is provided with a gear, and a rack 32 is provided on one side of the vertical shaft 8, and the gear is meshed with the rack 32; the overall control system is controlled and connected with the vertical motor 31; the vertical motor 31 drives the rack 32 to move through the gear, and the rack 32 is arranged on the vertical shaft 8. Finally, the vertical shaft 8 moves along the vertical direction on the guide seat 7 under the drive of the rack 32.

[0052] In this embodiment, the mechanical gripper assembly 13 is responsible for grabbing the guardrail plate. Figure 6 As shown, the mechanical gripper assembly 13 includes a double piston rod hydraulic cylinder 33 and two groups of gripper assemblies, the two groups of gripper assemblies are arranged side by side up and down, and the double piston rod hydraulic cylinder 33 is located between the two groups of gripper assemblies;

[0053] Each group of gripper assemblies includes two incomplete gears 34, which are rotatably mounted in the gripper box 10, respectively. The gear parts of the two incomplete gears 34 are meshed with each other. An arm 35 is fixed to each of the two incomplete gears 34, and the end of the arm 35 extends out of the gripper box 10 from the through opening 12. A gripper plate 36 is hinged to the end of the arm 35, and a non-slip rubber pad is provided on the surface of the gripper plate 36. An extension plate 37 is fixed to one of the incomplete gears 34, and a long hole 38 is opened on the extension plate 37.

[0054] The two piston rods of the double-piston-rod hydraulic cylinder 33 are respectively connected to the extension plates 37 of the two groups of gripper assemblies, and the piston rod ends of the double-piston-rod hydraulic cylinder 33 are connected to the long holes 38 of the extension plates 37 through the sixth pin shaft 39, and the sixth pin shaft 39 can move in the long holes 38.

[0055] The specific process of the mechanical gripper assembly 13 grabbing the guardrail plate is as follows: the hydraulic station is connected to the double-piston rod hydraulic cylinder 33 through the oil circuit, the double-piston rod hydraulic cylinder 33 is started, and the two piston rods of the double-piston rod hydraulic cylinder 33 respectively push the extension plates 37 of the two groups of gripper assemblies, and the extension plates 37 drive the incomplete gears 34 connected thereto to rotate, so that the two incomplete gears 34 mesh and rotate, and the arm rod 35 is fixed on the incomplete gear 34, and finally the arm rod 35 rotates, and the gripper plates 36 at the ends of the two arm rods 35 jointly clamp the rib bulges of the guardrail plate to complete the clamping of the guardrail plate; in order to further increase the clamping force, an electromagnet can be set in each gripper plate 36, and the electromagnet is connected to the overall control system. By energizing the electromagnet, it generates high-strength magnetism. When the gripper plate 36 grabs the guardrail plate, the gripper plate 36 can be adsorbed and fixed on the guardrail plate. When the guardrail plate is released, the electromagnet is powered off.

[0056] As another embodiment of the present invention, a pair of doors 40 may be provided at the two rectangular openings 14, respectively, so that the rectangular openings 14 can be closed when not in use. Specifically, Figure 7-9 As shown, two groups of split doors 40 are arranged at the bottom of the gripper box 10, and the two groups of split doors 40 are respectively located at two rectangular openings 14, and each group of split doors 40 is connected to the corresponding guardrail pushing mechanism 15, and each group of split doors 40 includes two doors 41, and the two doors 41 are respectively hinged at the rectangular opening 14 through short shafts 42, and the two doors 41 can be opened in a split state, and a special-shaped bracket 44 is hinged on the frame 17 through a fifth pin shaft 43, and an arc plate 45 is fixed to the end of the special-shaped bracket 44, and the upper surfaces of the two doors 41 are respectively connected to the middle part of the special-shaped bracket 44 through a linkage rod 46, and the two ends of the linkage rod 46 are respectively connected to the upper surface of the door 41 and the middle part of the special-shaped bracket 44 by a hinged manner.

[0057] When the pushing roller 26 is pushed outward from the rectangular opening 14 under the push of the booster hydraulic cylinder 16, the pushing roller 26 pushes the two box doors 41, and the two box doors 41 are opened in a split state at the rectangular opening 14, and the pushing roller 26 can be pushed outward from the rectangular opening 14; when the pushing roller 26 is retracted from the rectangular opening 14 to the inside of the gripper box 10 under the pull of the booster hydraulic cylinder 16, the pushing roller 26 pushes the arc plate 45, and the arc plate 45 and the special-shaped bracket 44 rotate around the fifth pin shaft 43, and the special-shaped bracket 44 pulls the two box doors 41 through two linkage rods 46, so that the two box doors 41 are closed.

[0058] In addition, since the present invention pushes the guardrail plate under the guardrail mechanical gripper 9 out of the material cart 1 by moving the slide 6 on the light rod 3, the light rod 3 is used as a "track". During operation, the light rod 3 needs to be extended out of the material cart 1. If construction work is not required, the light rod 3 is still outside the material cart 1. The exposed light rod 3 has certain safety hazards. In order to solve the above problems, the device can also be optimized. Specifically, a track 47 is provided on the material cart 1, and a base 48 is installed on the track 47. The seat 48 can move on the track 47. A translation hydraulic cylinder 49 is also installed on the material cart 1. The piston rod of the translation hydraulic cylinder 49 is connected to the base 48. The suspension conveyor frame is installed on the base 48. During construction, the translation hydraulic cylinder 49 pushes the base 48 to move, so that the suspension conveyor frame moves in the horizontal direction, and finally pushes the light rod 3 to a suitable position outside the material cart 1. When the construction is completed, the translation hydraulic cylinder 49 pulls the base 48 to move, pulls the suspension conveyor frame, and retracts the light rod 3 into the material cart 1.

[0059] In order to increase the structural strength of the polished rod 3 , the column 2 and the overall suspension conveyor frame, pull rods 50 are respectively installed between the two ends of the polished rod 3 and the upper end of the column 2 .

[0060] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent suspension conveying system for conveying highway construction materials, characterized by: It includes a material car, which is provided with a suspension conveyor frame, a hydraulic station and a general control system. The suspension conveyor frame includes a horizontal suspension conveying mechanism and two columns. A polished rod is fixed on each column. The polished rod is arranged in a horizontal direction. A left connecting rod is fixed between the two columns. A right connecting rod is fixed between the right ends of the two polished rods. The left connecting rod and the right connecting rod are located on the same horizontal plane. A slide is mounted on each polished rod. The horizontal suspension conveying mechanism is used to drive the two slides to move synchronously on the two polished rods. A guide seat and a vertical shaft are installed on each slide seat. The vertical shaft is inserted on the guide seat in the vertical direction. A vertical moving mechanism is installed on the guide seat. The vertical moving mechanism is used to drive the vertical shaft to move on the guide seat in the vertical direction. A guardrail mechanical gripper is installed at the lower end of the two vertical shafts. The guardrail mechanical gripper includes a gripper box. The lower ends of the two vertical shafts are connected to the top of the gripper box in a hinged manner. A turning cylinder is also connected between each vertical shaft and the top of the gripper box. The guardrail mechanical gripper is pushed to turn around the lower end of the vertical shaft through the extension and contraction of the two sets of turning cylinders. Through openings are respectively provided on the left and right sides of the bottom of the gripper box. A set of mechanical gripper assemblies are respectively provided on the left and right sides of the gripper box. The two sets of mechanical gripper assemblies extend outward through the two through openings. Two groups of guardrail pushing mechanisms are arranged in the middle of the grip box, and the two groups of guardrail pushing mechanisms are arranged symmetrically on the left and right. Two rectangular openings are opened in the middle of the bottom surface of the grip box, and the two rectangular openings correspond to the two groups of guardrail pushing mechanisms respectively; each group of guardrail pushing mechanisms includes a booster hydraulic cylinder, a frame, a first connecting rod, a second connecting rod and a crank arm, the frame is fixedly installed in the grip box, one end of the first connecting rod is hinged to the frame through a first pin shaft, the other end of the first connecting rod is hinged to one end of the second connecting rod through a second pin shaft, one end of the crank arm is hinged to the frame through a third pin shaft, the other end of the second connecting rod is hinged to the middle part of the crank arm through a fourth pin shaft, a wheel frame is installed at the end of the crank arm, and a pushing roller is rotatably installed on the wheel frame; the cylinder body of the booster hydraulic cylinder is installed in the grip box, and the piston rod end of the booster hydraulic cylinder is hinged to the middle part of the first connecting rod; The piston rod of the booster hydraulic cylinder extends out, and the piston rod of the booster hydraulic cylinder pushes the middle part of the first connecting rod, and the first connecting rod rotates around the first pin shaft. The first connecting rod pushes the crank arm through the second connecting rod, so that the crank arm rotates around the third pin shaft. After the crank arm rotates, the pushing roller at the end of the crank arm is pushed outward from the rectangular opening. The overall control system is respectively connected with the hydraulic station, the horizontal suspension conveying mechanism and two groups of vertical moving mechanisms; the hydraulic station is respectively connected with the two groups of boosting hydraulic cylinders and the two groups of turning cylinders through oil circuits.

2. The intelligent suspension conveying system for conveying highway construction materials according to claim 1 is characterized in that: Two groups of split-doors are arranged at the bottom of the gripper box, and the two groups of split-doors are respectively located at two rectangular openings, and each group of split-doors is connected to the corresponding guardrail pushing mechanism, and each group of split-doors includes two doors, and the two doors are respectively hinged at the rectangular openings through short shafts, and the two doors can be opened in a split state, and a special-shaped bracket is hinged on the frame through a fifth pin shaft, and an arc plate is fixed at the end of the special-shaped bracket, and the upper surfaces of the two doors are respectively connected to the middle of the special-shaped bracket through a linkage rod, and the two ends of the linkage rod are respectively connected to the upper surface of the door and the middle of the special-shaped bracket by a hinged manner; When the pushing roller is pushed outward from the rectangular opening by the push of the booster hydraulic cylinder, the pushing roller pushes the two box doors, and the two box doors are opened in a split state at the rectangular opening, and the pushing roller can be pushed outward from the rectangular opening; when the pushing roller is retracted from the rectangular opening to the inside of the gripper box by the pull of the booster hydraulic cylinder, the pushing roller pushes the arc plate, and the arc plate and the special-shaped bracket rotate around the fifth pin shaft, and the special-shaped bracket pulls the two box doors through two linkage rods, so that the two box doors are closed.

3. The intelligent suspension conveying system for conveying highway construction materials according to claim 2 is characterized in that: The horizontal suspension conveying mechanism includes a lead screw and a drive motor. The two ends of the lead screw are rotatably mounted on a left connecting rod and a right connecting rod respectively. A threaded sleeve is arranged on the lead screw, and the threaded sleeve cooperates with the lead screw thread. The drive motor is mounted on the left connecting rod, and the drive motor is connected to the lead screw in a transmission manner. The two slides are fixedly connected to the threaded sleeves through short rods respectively. The overall control system is control-connected to the drive motor.

4. The intelligent suspension conveying system for conveying highway construction materials according to claim 3 is characterized in that: The vertical moving mechanism comprises a vertical motor, which is mounted on a guide seat. The main shaft of the vertical motor is provided with a gear, one side of the vertical shaft is provided with a rack, and the gear is meshed with the rack; the overall control system is connected to the vertical motor control.

5. The intelligent suspension conveying system for conveying highway construction materials according to claim 4 is characterized in that: The mechanical gripper assembly comprises a double piston rod hydraulic cylinder and two groups of gripper assemblies, the two groups of gripper assemblies are arranged side by side up and down, and the double piston rod hydraulic cylinder is located between the two groups of gripper assemblies; Each group of gripper assemblies includes two incomplete gears, which are rotatably installed in the gripper box respectively, and the gear parts of the two incomplete gears are meshed with each other. Arms are fixed on the two incomplete gears, and the ends of the arm extend out of the gripper box from the through opening. The ends of the arm are hinged with gripper plates, and the surface of the gripper plates is provided with anti-slip rubber pads; an extension plate is fixed on one of the incomplete gears, and a long hole is opened on the extension plate; The two piston rods of the double-piston-rod hydraulic cylinder are respectively connected to the extension plates of the two groups of gripper assemblies, and the piston rod ends of the double-piston-rod hydraulic cylinder are connected to the long holes of the extension plates through the sixth pin shaft, and the sixth pin shaft can move in the long holes.

6. The intelligent suspension conveying system for conveying highway construction materials according to claim 5 is characterized in that: Each gripper plate is provided with an electromagnet, which is connected to the overall control system.

7. The intelligent suspension conveying system for conveying highway construction materials according to claim 6 is characterized in that: The material car is provided with a track, a base is installed on the track, the base can move on the track, a translation hydraulic cylinder is also installed on the material car, the piston rod of the translation hydraulic cylinder is connected to the base, and the suspension conveyor frame is installed on the base.

8. The intelligent suspension conveying system for conveying highway construction materials according to claim 7 is characterized in that: The two ends of the bare rod are connected to the upper ends of the columns through tie rods respectively.

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