A multifunctional handling device for concrete barriers

Abstract

The present application relates to material handling technology field, more specifically, it relates to a kind of multifunctional handling equipment for concrete guardrail, including forklift body, portal structure and working device, portal structure is set on forklift body, and the lower end of portal structure is provided with pallet fork, and working device is set on the upper end of portal structure, and angle control mechanism is set between portal structure and forklift body;Working device includes connecting plate, frame and actuating mechanism, connecting plate is fixedly connected with portal structure, frame is slidably arranged on connecting plate along transverse direction, and actuating mechanism is arranged on frame along longitudinal direction.The present application significantly improves the multifunctionality and operational flexibility of concrete guardrail handling.Angle control mechanism and outer portal linkage realize the accurate height adjustment of pallet fork, combined with the lateral movement mechanism driven by side shift cylinder and lead screw-threaded sleeve longitudinal drive system, so that actuating mechanism can complete three-dimensional space accurate positioning.

Description

TECHNICAL FIELD

[0001] The present application relates to the material handling technical field, more particularly to a multifunctional carrying device for concrete guardrails. BACKGROUND

[0002] The forklift is a kind of industrial carrying vehicle with loading and carrying functions in the logistics field. It takes the fork as the main loading device, lifts the goods by the hydraulic lifting mechanism, and realizes the horizontal carrying of the goods by the tire driving system.

[0003] The guardrail is an indispensable key safety protection facility in the construction of the expressway, and plays a crucial role in protection. The UHPC low-carbon environment-friendly semi-assembled high-strength concrete guardrail is launched by the Shanxi Jiaotong Group. In the freight yard transfer link, the semi-assembled concrete guardrail mainly relies on the forklift for carrying, and must rely on the cushioning sleeper to assist the fork operation. This not only leads to the disorderly placement of the guardrail in the freight yard, and has no regularity, but also makes the fine management degree of the freight yard at a low level. In the assembly process at the construction site, excessive reliance on the hydraulic forklift and manual operation exists. This operation mode has a security risk that cannot be ignored, and is easy to cause product damage or personnel casualty accidents due to human operation carelessness, equipment failure and other unexpected conditions.

[0004] Therefore, it is necessary to improve the prior art. SUMMARY

[0005] In order to overcome the deficiencies in the prior art, a multifunctional carrying device for concrete guardrails is provided to meet the loading, carrying and assembly operation requirements of the existing guardrails.

[0006] In order to solve the above technical problems, the technical scheme adopted by the present application is:

[0007] A multifunctional carrying device for concrete guardrails, comprising a forklift body, a portal structure and a working device, the portal structure is arranged on the forklift body, the lower end of the portal structure is provided with a fork, the working device is arranged at the upper end of the portal structure, and an angle control mechanism for controlling the inclination angle of the portal structure is arranged between the portal structure and the forklift body;

[0008] The working device comprises a connecting plate, a frame and an execution mechanism, the connecting plate is fixedly connected with the portal structure, the frame is arranged on the connecting plate in a transverse sliding mode, the execution mechanism is arranged on the frame in a longitudinal mode, a transverse driving mechanism is arranged between the frame and the connecting plate, and a longitudinal driving mechanism is arranged between the execution mechanism and the frame;

[0009] The executing mechanism comprises an intermediate plate and a rotary controller arranged on the intermediate plate, a vertical driving mechanism is arranged between the rotary controller and the intermediate plate, and an output end of the rotary controller is provided with a connecting flange for connecting an actuator.

[0010] Preferably, the portal structure comprises a slidingly connected outer portal and an inner portal, the outer portal is rotationally connected with the forklift body, and the angle control mechanism comprises an angle control oil cylinder arranged between the outer portal and the forklift body.

[0011] A lifting controller is arranged between the inner portal and the outer portal, the forks are arranged at a lower end of the outer portal, and the connecting plate is arranged on the inner portal.

[0012] Preferably, the frame comprises a fixedly connected back plate and a cross beam, two cross beams are arranged, and the two cross beams are fixedly connected through two support frames; the lateral driving mechanism comprises a lateral support and a side shift oil cylinder, the lateral support is arranged on a side of the back plate away from the cross beam, the lateral support is connected with the back plate through a sandwich plate, and the back plate is hung on the connecting plate through the lateral support;

[0013] The side shift oil cylinder comprises a side shift oil cylinder barrel, a side shift oil cylinder support plate and a side shift oil cylinder support seat, a retainer is fixedly connected to a front end of the connecting plate, the side shift oil cylinder support plate is fixedly connected to the retainer, a gap is arranged between the back plate and the lateral support, the side shift oil cylinder support plate can pass out of the gap upward and move laterally, a side shift oil cylinder support seat is fixedly connected to an upper end of the back plate, and the two ends of the side shift oil cylinder barrel are hingedly connected with the side shift oil cylinder support seat and the side shift oil cylinder support plate respectively.

[0014] Preferably, a connecting block that is in sliding cooperation with a lower end of the connecting plate is fixedly connected to a lower end of the back plate.

[0015] Preferably, a roller plate is fixedly connected to each side of the intermediate plate, vertical rollers and horizontal rollers are rotationally connected to the outside of the roller plates on the two sides through roller shafts, and a roller groove that cooperates with the horizontal rollers and the vertical rollers is arranged on the frame.

[0016] Preferably, the longitudinal driving mechanism comprises a lead screw, a lead screw support seat, a threaded sleeve and a rotary motor, two lead screw support seats are arranged, the two lead screw support seats are arranged on the two support frames respectively, the two ends of the lead screw are rotationally arranged in the two lead screw support seats respectively, the threaded sleeve is fixedly arranged on the intermediate plate and is in threaded cooperation with the lead screw, the rotary motor is arranged on one of the support frames, and a motor shaft of the rotary motor is connected with one end of the lead screw.

[0017] Preferably, the vertical driving mechanism comprises a guide structure, a rectangular tube, an oil cylinder ear plate and a lifting oil cylinder, the guide structure is fixedly arranged on the intermediate plate, a through hole is arranged in the middle of the guide structure, the rectangular tube is slidingly arranged in the through hole, an upper end of the rectangular tube extends out of the guide structure and is fixedly connected with one end of the oil cylinder ear plate, and the other end of the oil cylinder ear plate is connected with the lifting oil cylinder.

[0018] The lower end of the rectangular tube is connected with the shell of the rotary controller.

[0019] Preferably, the lifting oil cylinder comprises a cylinder body and a cylinder disc, and the cylinder body is fixedly arranged on the middle plate through the cylinder disc.

[0020] The rotary controller comprises a speed reducer and an oil motor, and the output shaft of the oil motor is connected with the speed reducer and transmits power.

[0021] Preferably, a guide roller is arranged between the inner door frame and the outer door frame.

[0022] Preferably, a reinforcing plate is arranged between the cross beam and the back plate.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] The present application optimizes the collaborative design of the door frame structure and the working device, significantly improves the multifunctionality and operation flexibility of the concrete guardrail carrying, and realizes the precise height adjustment of the fork through the linkage of the angle control mechanism and the outer door frame. Combined with the lateral movement mechanism driven by the side shift oil cylinder and the longitudinal driving system of the lead screw-threaded sleeve, the execution mechanism can complete the precise positioning in three-dimensional space and adapt to the clamping requirements of concrete guardrails of different specifications. The cooperation design of the guide roller and the roller groove greatly reduces the movement friction resistance and ensures the stability of the lifting and translation process; the modularized actuator interface combined with the rotary controller can quickly switch the clamping device or the lifting tool, and enhances the versatility of the equipment. Through the comprehensive design of the back plate reinforcing structure, the support plate frame connection and the rectangular tube guide mechanism, the carrying stability is significantly improved while the compactness of the structure is maintained, and the operation risk is reduced. The equipment has the basic functions of a forklift and the special clamp control ability, effectively solves the technical bottlenecks of difficult adjustment of the carrying posture and insufficient positioning accuracy of the traditional equipment. BRIEF DESCRIPTION OF DRAWINGS

[0025] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0026] Figure 1 The three views of the concrete guardrail;

[0027] Figure 2 The overall structure of the present application is shown in the schematic diagram;

[0028] Figure 3 The working device structure of the present application is shown in the schematic diagram;

[0029] Figure 4 The structure of the lateral driving mechanism is shown in the schematic diagram;

[0030] Figure 5 The structure of the execution mechanism is shown in the schematic diagram;

[0031] Figure 6 This is a structural diagram of the portal frame structure;

[0032] Figure 7 This is a structural schematic diagram of the outer gantry;

[0033] Figure 8 This is a schematic diagram of a clamping device structure;

[0034] Figure 9 This is a schematic diagram of the inner gantry lifting structure.

[0035] In the diagram: 1. Forklift body; 2. Forks; 3. Motor; 4. Outer mast; 5. Inner mast; 6. Connecting plate; 7. Crossbeam; 8. Actuator; 9. Side shift cylinder; 10. Back plate; 11. Cross support; 12. Mezzanine plate; 13. Reinforcing plate; 14. Support frame; 15. Lead screw; 16. Lifting cylinder; 17. Lead screw support; 18. Threaded sleeve; 19. Rotary motor; 20. Guide structure; 21. Intermediate plate; 22. Roller plate; 23. Hydraulic motor; 24. Rectangular tube; 25. Reducer; 26. Roller shaft; 27. Horizontal roller; 28. Vertical roller; 29. ​​Hydraulic cylinder plate; 30. Hydraulic cylinder body; 31. Hydraulic cylinder ear plate; 32. Side-shifting hydraulic cylinder support plate; 33. Side-shifting hydraulic cylinder barrel; 34. Side-shifting hydraulic cylinder support; 35. Cage; 36. Connecting block; 37. Working device; 38. Sprocket. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example:

[0038] like Figures 1 to 7 As shown, a multi-functional handling device for concrete guardrails includes a forklift body 1, a mast structure, and a working device 37. The mast structure is mounted on the forklift body 1, and an angle control mechanism for controlling the tilt angle of the mast structure is provided between the mast structure and the forklift body 1. Preferably, the mast structure includes an outer mast 4 and an inner mast 5 that are slidably connected, and guide rollers are provided between the inner mast 5 and the outer mast 4 to reduce friction. A lifting controller is provided between the inner mast 5 and the outer mast 4, and the lifting controller adopts existing technology. The outer mast 4 is rotatably connected to the forklift body 1, and the angle control mechanism includes an angle control cylinder disposed between the outer mast 4 and the forklift body 1.

[0039] The fork 2 is arranged at the lower end of the outer portal 4, and can be used to directly fork the goods or pallets, and can also cooperate with the working device 37. When the goods need to be forked, the angle of the outer portal 4 is changed by the angle control oil cylinder, and then the height of the front end of the fork 2 is changed, and then the goods are conveniently forked.

[0040] The working device 37 is arranged on the inner portal 5, and specifically, the working device 37 comprises a connecting plate 6, a frame and an execution mechanism 8. The connecting plate 6 is fixedly connected with the inner portal 5. The frame is arranged on the connecting plate 6 in a transverse sliding manner. The execution mechanism 8 is arranged on the frame in a longitudinal manner. A transverse driving mechanism for driving the frame to move transversely is arranged between the frame and the connecting plate 6. A longitudinal driving mechanism for driving the execution mechanism 8 to move longitudinally is arranged between the execution mechanism 8 and the frame. In the embodiment, the specific directions of the transverse and longitudinal directions are based on the directions shown in the figure. Figure 3 The frame comprises a back plate 10 and a cross beam 7 which are fixedly connected. Two cross beams 7 are arranged on the same side of the back plate 10. A reinforcing plate 13 is arranged between the cross beam 7 and the back plate 10. The two cross beams 7 are fixedly connected through two support plate frames 14.

[0041] The transverse driving mechanism comprises a lateral support 11 and a side moving oil cylinder 9. The lateral support 11 is arranged on the side of the back plate 10 away from the cross beam 7. The lateral support 11 is connected with the back plate 10 through a sandwich plate 12. The back plate 10 is hung on the connecting plate 6 through the lateral support 11. A connecting block 36 which is in sliding fit with the lower end of the connecting plate 6 is fixedly connected with the lower end of the back plate 10. The back plate 10 is prevented from falling off the connecting plate.

[0042] The side moving oil cylinder 9 comprises a side moving oil cylinder barrel 33, a side moving oil cylinder support plate 32 and a side moving oil cylinder support 34. A retainer 35 is fixedly connected with the front end of the connecting plate 6. The side moving oil cylinder support plate 32 is fixedly connected with the retainer 35. A gap is arranged between the back plate 10 and the lateral support 11, which allows the side moving oil cylinder support plate 32 to pass out upwardly and move transversely. The side moving oil cylinder support 34 is fixedly connected with the upper end of the back plate 10. The two ends of the side moving oil cylinder barrel 33 are hingedly connected with the side moving oil cylinder support 34 and the side moving oil cylinder support plate 32 respectively.

[0043] By elongating or shortening the side moving oil cylinder barrel 33, the back plate 10 is driven to move leftward or rightward relative to the retainer 35 and the connecting plate 6, so as to realize the transverse movement of the frame as a whole.

[0044] The execution mechanism 8 comprises an intermediate plate 21 and a rotary controller arranged on the intermediate plate 21. Roll plate 22 is fixedly connected on both sides of the intermediate plate 21. Vertical rollers 28 and horizontal rollers 27 are rotatably connected with the outer sides of the roll plate 22 through roll shafts 26. Roll grooves are arranged on the frame and matched with the horizontal rollers 27 and the vertical rollers 28. By arranging the vertical rollers 28 and the horizontal rollers 27, the frictional force during the movement of the intermediate plate 21 can be reduced, and the movement stability can be improved.

[0045] In order to facilitate the movement of the intermediate plate 21, the longitudinal driving mechanism comprises a lead screw 15, two lead screw supports 17, a threaded sleeve 18 and a rotary motor 19, the two lead screw supports 17 are arranged on the two support plate frames 14 respectively, the two ends of the lead screw 15 are rotatably arranged in the two lead screw supports 17 respectively, the threaded sleeve 18 is fixedly arranged on the intermediate plate 21, the lead screw 15 is in threaded cooperation with the threaded sleeve 18, and the rotary motor 19 is arranged on one of the support plate frames 14, and the motor shaft of the rotary motor 19 is connected with one end of the lead screw 15.

[0046] The rotary motor 19 drives the lead screw 15 to rotate, and then drives the intermediate plate 21 to move along the axis direction of the lead screw 15 through the threaded cooperation between the threaded sleeve 18 and the lead screw 15.

[0047] Preferably, the rotary controller comprises a speed reducer 25 and an oil motor 23, the output shaft of the oil motor 23 is connected with the speed reducer 25 and transmits power. The output end of the speed reducer 25 is provided with a connecting flange for connecting the actuator. The actuator can select existing clamping devices or lifting devices according to different concrete specifications.

[0048] The vertical driving mechanism is arranged between the rotary controller and the intermediate plate 21, the vertical driving mechanism drives the rotary controller and the actuator thereon to move up and down, and facilitates the butt joint with the concrete guardrail.

[0049] Preferably, the vertical driving mechanism comprises a guide structure 20, a rectangular tube 24, an oil cylinder lug plate 31 and a lifting oil cylinder 16, the guide structure 20 is fixedly arranged on the intermediate plate 21, the middle part of the guide structure 20 is provided with a through hole, the rectangular tube 24 is slidably arranged in the through hole, the upper end of the rectangular tube 24 extends out of the guide structure 20 and is fixedly connected with one end of the oil cylinder lug plate 31, the other end of the oil cylinder lug plate 31 is connected with the lifting oil cylinder 16, and the lower end of the rectangular tube 24 is connected with the shell of the rotary controller. The lifting oil cylinder 16 drives the oil cylinder lug plate 31 to lift, and then drives the rectangular tube 24 and the rotary controller thereon to lift. In the embodiment, the lifting oil cylinder 16 comprises an oil cylinder body 30 and an oil cylinder disc 29, and the oil cylinder body 30 is fixedly arranged on the intermediate plate 21 through the oil cylinder disc 29.

[0050] The actuator 8 of the present application can adapt different structures of clamping devices according to the morphological characteristics of the goods to be carried, and the clamping devices are connected with the speed reducer 25 through the working device 37 to realize power connection. When working, the clamping device is connected with the speed reducer 25 through the working device 37, and the speed reducer 25 drives the clamping device to move up and down through the working device 37. Figure 8The shown clamping device first performs a grabbing operation on the guardrail, and then precisely transfers the single guardrail multiple times to the fork 2 bearing surface through the multi-degree-of-freedom actuator composed of the working device 37 and the portal, so as to complete the handling of the guardrail and deliver the goods to the designated station. After the goods are delivered to the designated station, the above-mentioned clamping and transferring operation process is repeated to form a complete automatic handling of the goods. The device realizes adaptive clamping of different specifications of goods through modular design, and completes efficient transfer of the goods relying on an integrated motion control system.

[0051] Operation steps:

[0052] The forklift 1 guardrail handling operation process can be divided into five stages: first, equipment preparation and positioning. After the operator starts the forklift 1 and checks the hydraulic system through the cab human-machine interaction platform, adjusts the ground clearance of the fork 2 through the inclined outer portal 4, and then uses the inner portal 5 to lift and accurately align the target guardrail. When entering the grabbing stage, the longitudinal driving mechanism drives the actuator to extend along the cross beam 7 until the actuator contacts the guardrail, and then the actuator clamps the guardrail.

[0053] The guardrail is vertically lifted to a safe height by the lifting cylinder 16, and the horizontal position of the actuator is adjusted in real time during driving by the side shift cylinder 9. When placing or assembling, the lifting cylinder 16 controls the guardrail to slowly descend and position, the angle of the guardrail is adjusted by rotating the controller, and the guardrail assembly work is completed by manual operation. Finally, enter the cycle operation, the forklift realizes handling of multiple types of guardrails by quickly replacing the suction cups and other accessories, relies on the flexible scheduling capability of the side shift cylinder 9 to continuously adapt to changes in cargo flow, and forms an efficient closed-loop operation process.

[0054] The above only details the preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application, and all changes shall be included in the protection scope of the present application.

Claims

1. A multi-functional handling device for concrete guardrails, characterized in that: It includes a forklift body (1), a mast structure and a working device (37). The mast structure is installed on the forklift body (1), and forks (2) are installed at the lower end of the mast structure. The working device (37) is installed at the upper end of the mast structure. An angle control mechanism for controlling the tilt angle of the mast structure is installed between the mast structure and the forklift body (1). The working device (37) includes a connecting plate (6), a frame, and an actuator (8). The connecting plate (6) is fixedly connected to the gantry structure. The frame is slidably mounted on the connecting plate (6) in the transverse direction. The actuator (8) is mounted on the frame in the longitudinal direction. A transverse drive mechanism is provided between the frame and the connecting plate (6). A longitudinal drive mechanism is provided between the actuator (8) and the frame. The actuator (8) includes an intermediate plate (21) and a rotary controller mounted on the intermediate plate (21). A vertical drive mechanism is provided between the rotary controller and the intermediate plate (21). The output end of the rotary controller is provided with a connecting flange for connecting the actuator. The mast structure includes an outer mast (4) and an inner mast (5) that are slidably connected. The outer mast (4) is rotatably connected to the forklift body (1). The angle control mechanism includes an angle control cylinder disposed between the outer mast (4) and the forklift body (1). A lifting controller is provided between the inner mast (5) and the outer mast (4), the forks (2) are located at the lower end of the outer mast (4), and the connecting plate (6) is located on the inner mast (5); The frame includes a fixedly connected back plate (10) and crossbeams (7). There are two crossbeams (7), which are fixedly connected by two support frames (14). The transverse drive mechanism includes a cross bracket (11) and a side-shifting cylinder (9). The cross bracket (11) is located on the side of the back plate (10) away from the crossbeams (7). The cross bracket (11) is connected to the back plate (10) through a sandwich panel (12). The back plate (10) is hung on the connecting plate (6) through the cross bracket (11). The lateral displacement cylinder (9) includes a lateral displacement cylinder barrel (33), a lateral displacement cylinder support plate (32), and a lateral displacement cylinder support (34). A retainer (35) is fixedly connected to the front end of the connecting plate (6), and the lateral displacement cylinder support plate (32) is fixedly connected to the retainer (35). A gap is provided between the back plate (10) and the cross bracket (11) for the lateral displacement cylinder support plate (32) to pass through upward and move laterally. The lateral displacement cylinder support (34) is fixedly connected to the upper end of the back plate (10). The two ends of the lateral displacement cylinder barrel (33) are respectively hinged to the lateral displacement cylinder support (34) and the lateral displacement cylinder support plate (32).

2. The multi-functional handling equipment for concrete guardrails according to claim 1, characterized in that: The lower end of the back plate (10) is fixedly connected to a connecting block (36) that slides with the lower end of the connecting plate (6).

3. A multi-functional handling device for concrete guardrails according to claim 1, characterized in that: Roller plates (22) are fixedly connected to both sides of the intermediate plate (21). Vertical rollers (28) and horizontal rollers (27) are rotatably connected to the outer sides of the roller plates (22) on both sides via roller shafts (26). Roller grooves that cooperate with the horizontal rollers (27) and vertical rollers (28) are provided on the frame.

4. A multi-functional handling device for concrete guardrails according to claim 1, characterized in that: The longitudinal drive mechanism includes a lead screw (15), a lead screw support (17), a threaded sleeve (18), and a rotary motor (19). There are two lead screw supports (17), which are respectively mounted on two support plates (14). The two ends of the lead screw (15) are respectively rotatably mounted in the two lead screw supports (17). The threaded sleeve (18) is fixedly mounted on the intermediate plate (21) and threadedly engaged with the lead screw (15). The rotary motor (19) is mounted on one of the support plates (14), and the motor shaft of the rotary motor (19) is connected to one end of the lead screw (15).

5. A multi-functional handling device for concrete guardrails according to claim 1, characterized in that: The vertical drive mechanism includes a guide structure (20), a rectangular tube (24), a cylinder ear plate (31), and a lifting cylinder (16). The guide structure (20) is fixedly mounted on the intermediate plate (21). A through hole is provided in the middle of the guide structure (20). The rectangular tube (24) is slidably mounted in the through hole. The upper end of the rectangular tube (24) extends out of the guide structure (20) and is fixedly connected to one end of the cylinder ear plate (31). The other end of the cylinder ear plate (31) is connected to the lifting cylinder (16). The lower end of the rectangular tube (24) is connected to the housing of the rotary controller.

6. A multi-functional handling device for concrete guardrails according to claim 5, characterized in that: The lifting cylinder (16) includes a cylinder body (30) and a cylinder plate (29), and the cylinder body (30) is fixedly mounted on the intermediate plate (21) by the cylinder plate (29); The rotary controller includes a reducer (25) and a hydraulic motor (23), the output shaft of which is connected to the reducer (25) and transmits power.

7. A multi-functional handling device for concrete guardrails according to claim 1, characterized in that: Guide rollers are provided between the inner gantry (5) and the outer gantry (4).

8. A multi-functional handling device for concrete guardrails according to claim 1, characterized in that: A reinforcing plate (13) is provided between the crossbeam (7) and the back plate (10).

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